Merge remote-tracking branch 'origin/4.1.x' into sync_41x_50x

samples/openapi3/client/petstore/ruby/.rubocop.yml

@@ -46,7 +46,7 @@ Layout/EmptyLinesAroundMethodBody:
 Layout/EmptyLinesAroundModuleBody:
   Enabled: true
 
-Layout/FirstParameterIndentation:
+Layout/IndentFirstArgument:
   Enabled: true
 
 # Use Ruby >= 1.9 syntax for hashes. Prefer { a: :b } over { :a => :b }.

samples/openapi3/client/petstore/ruby/README.md

@@ -139,6 +139,12 @@ Class | Method | HTTP request | Description
  - [Petstore::FormatTest](docs/FormatTest.md)
  - [Petstore::HasOnlyReadOnly](docs/HasOnlyReadOnly.md)
  - [Petstore::HealthCheckResult](docs/HealthCheckResult.md)
+ - [Petstore::InlineObject](docs/InlineObject.md)
+ - [Petstore::InlineObject1](docs/InlineObject1.md)
+ - [Petstore::InlineObject2](docs/InlineObject2.md)
+ - [Petstore::InlineObject3](docs/InlineObject3.md)
+ - [Petstore::InlineObject4](docs/InlineObject4.md)
+ - [Petstore::InlineObject5](docs/InlineObject5.md)
  - [Petstore::InlineResponseDefault](docs/InlineResponseDefault.md)
  - [Petstore::List](docs/List.md)
  - [Petstore::MapTest](docs/MapTest.md)

samples/openapi3/client/petstore/ruby/docs/InlineObject.md

@@ -0,0 +1,19 @@
+# Petstore::InlineObject
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**name** | **String** | Updated name of the pet | [optional] 
+**status** | **String** | Updated status of the pet | [optional] 
+
+## Code Sample
+
+```ruby
+require 'Petstore'
+
+instance = Petstore::InlineObject.new(name: null,
+                                 status: null)
+```
+
+

samples/openapi3/client/petstore/ruby/docs/InlineObject1.md

@@ -0,0 +1,19 @@
+# Petstore::InlineObject1
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**additional_metadata** | **String** | Additional data to pass to server | [optional] 
+**file** | **File** | file to upload | [optional] 
+
+## Code Sample
+
+```ruby
+require 'Petstore'
+
+instance = Petstore::InlineObject1.new(additional_metadata: null,
+                                 file: null)
+```
+
+

samples/openapi3/client/petstore/ruby/docs/InlineObject2.md

@@ -0,0 +1,19 @@
+# Petstore::InlineObject2
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**enum_form_string_array** | **Array<String>** | Form parameter enum test (string array) | [optional] 
+**enum_form_string** | **String** | Form parameter enum test (string) | [optional] [default to '-efg']
+
+## Code Sample
+
+```ruby
+require 'Petstore'
+
+instance = Petstore::InlineObject2.new(enum_form_string_array: null,
+                                 enum_form_string: null)
+```
+
+

samples/openapi3/client/petstore/ruby/docs/InlineObject3.md

@@ -0,0 +1,43 @@
+# Petstore::InlineObject3
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**integer** | **Integer** | None | [optional] 
+**int32** | **Integer** | None | [optional] 
+**int64** | **Integer** | None | [optional] 
+**number** | **Float** | None | 
+**float** | **Float** | None | [optional] 
+**double** | **Float** | None | 
+**string** | **String** | None | [optional] 
+**pattern_without_delimiter** | **String** | None | 
+**byte** | **String** | None | 
+**binary** | **File** | None | [optional] 
+**date** | **Date** | None | [optional] 
+**date_time** | **DateTime** | None | [optional] 
+**password** | **String** | None | [optional] 
+**callback** | **String** | None | [optional] 
+
+## Code Sample
+
+```ruby
+require 'Petstore'
+
+instance = Petstore::InlineObject3.new(integer: null,
+                                 int32: null,
+                                 int64: null,
+                                 number: null,
+                                 float: null,
+                                 double: null,
+                                 string: null,
+                                 pattern_without_delimiter: null,
+                                 byte: null,
+                                 binary: null,
+                                 date: null,
+                                 date_time: null,
+                                 password: null,
+                                 callback: null)
+```
+
+

samples/openapi3/client/petstore/ruby/docs/InlineObject4.md

@@ -0,0 +1,19 @@
+# Petstore::InlineObject4
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**param** | **String** | field1 | 
+**param2** | **String** | field2 | 
+
+## Code Sample
+
+```ruby
+require 'Petstore'
+
+instance = Petstore::InlineObject4.new(param: null,
+                                 param2: null)
+```
+
+

samples/openapi3/client/petstore/ruby/docs/InlineObject5.md

@@ -0,0 +1,19 @@
+# Petstore::InlineObject5
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**additional_metadata** | **String** | Additional data to pass to server | [optional] 
+**required_file** | **File** | file to upload | 
+
+## Code Sample
+
+```ruby
+require 'Petstore'
+
+instance = Petstore::InlineObject5.new(additional_metadata: null,
+                                 required_file: null)
+```
+
+

samples/openapi3/client/petstore/ruby/docs/UserApi.md

@@ -74,7 +74,7 @@ Creates list of users with given input array
 require 'petstore'
 
 api_instance = Petstore::UserApi.new
-user = nil # Array<User> | List of user object
+user = [Petstore::User.new] # Array<User> | List of user object
 
 begin
   #Creates list of users with given input array
@@ -89,7 +89,7 @@ end
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **user** | [**Array&lt;User&gt;**](Array.md)| List of user object | 
+ **user** | [**Array&lt;User&gt;**](User.md)| List of user object | 
 
 ### Return type
 
@@ -118,7 +118,7 @@ Creates list of users with given input array
 require 'petstore'
 
 api_instance = Petstore::UserApi.new
-user = nil # Array<User> | List of user object
+user = [Petstore::User.new] # Array<User> | List of user object
 
 begin
   #Creates list of users with given input array
@@ -133,7 +133,7 @@ end
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **user** | [**Array&lt;User&gt;**](Array.md)| List of user object | 
+ **user** | [**Array&lt;User&gt;**](User.md)| List of user object | 
 
 ### Return type
 

samples/openapi3/client/petstore/ruby/lib/petstore.rb

@@ -40,6 +40,12 @@ require 'petstore/models/foo'
 require 'petstore/models/format_test'
 require 'petstore/models/has_only_read_only'
 require 'petstore/models/health_check_result'
+require 'petstore/models/inline_object'
+require 'petstore/models/inline_object1'
+require 'petstore/models/inline_object2'
+require 'petstore/models/inline_object3'
+require 'petstore/models/inline_object4'
+require 'petstore/models/inline_object5'
 require 'petstore/models/inline_response_default'
 require 'petstore/models/list'
 require 'petstore/models/map_test'

samples/openapi3/client/petstore/ruby/lib/petstore/api/another_fake_api.rb

@@ -10,7 +10,6 @@ OpenAPI Generator version: 5.0.0-SNAPSHOT
 
 =end
 
-require 'uri'
 require 'cgi'
 
 module Petstore

samples/openapi3/client/petstore/ruby/lib/petstore/api/default_api.rb

@@ -10,7 +10,6 @@ OpenAPI Generator version: 5.0.0-SNAPSHOT
 
 =end
 
-require 'uri'
 require 'cgi'
 
 module Petstore

samples/openapi3/client/petstore/ruby/lib/petstore/api/fake_api.rb

@@ -10,7 +10,6 @@ OpenAPI Generator version: 5.0.0-SNAPSHOT
 
 =end
 
-require 'uri'
 require 'cgi'
 
 module Petstore

samples/openapi3/client/petstore/ruby/lib/petstore/api/fake_classname_tags123_api.rb

@@ -10,7 +10,6 @@ OpenAPI Generator version: 5.0.0-SNAPSHOT
 
 =end
 
-require 'uri'
 require 'cgi'
 
 module Petstore

samples/openapi3/client/petstore/ruby/lib/petstore/api/pet_api.rb

@@ -10,7 +10,6 @@ OpenAPI Generator version: 5.0.0-SNAPSHOT
 
 =end
 
-require 'uri'
 require 'cgi'
 
 module Petstore
@@ -104,7 +103,7 @@ module Petstore
         fail ArgumentError, "Missing the required parameter 'pet_id' when calling PetApi.delete_pet"
       end
       # resource path
-      local_var_path = '/pet/{petId}'.sub('{' + 'petId' + '}', CGI.escape(pet_id.to_s))
+      local_var_path = '/pet/{petId}'.sub('{' + 'petId' + '}', CGI.escape(pet_id.to_s).gsub('%2F', '/'))
 
       # query parameters
       query_params = opts[:query_params] || {}
@@ -291,7 +290,7 @@ module Petstore
         fail ArgumentError, "Missing the required parameter 'pet_id' when calling PetApi.get_pet_by_id"
       end
       # resource path
-      local_var_path = '/pet/{petId}'.sub('{' + 'petId' + '}', CGI.escape(pet_id.to_s))
+      local_var_path = '/pet/{petId}'.sub('{' + 'petId' + '}', CGI.escape(pet_id.to_s).gsub('%2F', '/'))
 
       # query parameters
       query_params = opts[:query_params] || {}
@@ -415,7 +414,7 @@ module Petstore
         fail ArgumentError, "Missing the required parameter 'pet_id' when calling PetApi.update_pet_with_form"
       end
       # resource path
-      local_var_path = '/pet/{petId}'.sub('{' + 'petId' + '}', CGI.escape(pet_id.to_s))
+      local_var_path = '/pet/{petId}'.sub('{' + 'petId' + '}', CGI.escape(pet_id.to_s).gsub('%2F', '/'))
 
       # query parameters
       query_params = opts[:query_params] || {}
@@ -481,7 +480,7 @@ module Petstore
         fail ArgumentError, "Missing the required parameter 'pet_id' when calling PetApi.upload_file"
       end
       # resource path
-      local_var_path = '/pet/{petId}/uploadImage'.sub('{' + 'petId' + '}', CGI.escape(pet_id.to_s))
+      local_var_path = '/pet/{petId}/uploadImage'.sub('{' + 'petId' + '}', CGI.escape(pet_id.to_s).gsub('%2F', '/'))
 
       # query parameters
       query_params = opts[:query_params] || {}
@@ -553,7 +552,7 @@ module Petstore
         fail ArgumentError, "Missing the required parameter 'required_file' when calling PetApi.upload_file_with_required_file"
       end
       # resource path
-      local_var_path = '/fake/{petId}/uploadImageWithRequiredFile'.sub('{' + 'petId' + '}', CGI.escape(pet_id.to_s))
+      local_var_path = '/fake/{petId}/uploadImageWithRequiredFile'.sub('{' + 'petId' + '}', CGI.escape(pet_id.to_s).gsub('%2F', '/'))
 
       # query parameters
       query_params = opts[:query_params] || {}

samples/openapi3/client/petstore/ruby/lib/petstore/api/store_api.rb

@@ -10,7 +10,6 @@ OpenAPI Generator version: 5.0.0-SNAPSHOT
 
 =end
 
-require 'uri'
 require 'cgi'
 
 module Petstore
@@ -44,7 +43,7 @@ module Petstore
         fail ArgumentError, "Missing the required parameter 'order_id' when calling StoreApi.delete_order"
       end
       # resource path
-      local_var_path = '/store/order/{order_id}'.sub('{' + 'order_id' + '}', CGI.escape(order_id.to_s))
+      local_var_path = '/store/order/{order_id}'.sub('{' + 'order_id' + '}', CGI.escape(order_id.to_s).gsub('%2F', '/'))
 
       # query parameters
       query_params = opts[:query_params] || {}
@@ -168,7 +167,7 @@ module Petstore
       end
 
       # resource path
-      local_var_path = '/store/order/{order_id}'.sub('{' + 'order_id' + '}', CGI.escape(order_id.to_s))
+      local_var_path = '/store/order/{order_id}'.sub('{' + 'order_id' + '}', CGI.escape(order_id.to_s).gsub('%2F', '/'))
 
       # query parameters
       query_params = opts[:query_params] || {}

samples/openapi3/client/petstore/ruby/lib/petstore/api/user_api.rb

@@ -10,7 +10,6 @@ OpenAPI Generator version: 5.0.0-SNAPSHOT
 
 =end
 
-require 'uri'
 require 'cgi'
 
 module Petstore
@@ -226,7 +225,7 @@ module Petstore
         fail ArgumentError, "Missing the required parameter 'username' when calling UserApi.delete_user"
       end
       # resource path
-      local_var_path = '/user/{username}'.sub('{' + 'username' + '}', CGI.escape(username.to_s))
+      local_var_path = '/user/{username}'.sub('{' + 'username' + '}', CGI.escape(username.to_s).gsub('%2F', '/'))
 
       # query parameters
       query_params = opts[:query_params] || {}
@@ -284,7 +283,7 @@ module Petstore
         fail ArgumentError, "Missing the required parameter 'username' when calling UserApi.get_user_by_name"
       end
       # resource path
-      local_var_path = '/user/{username}'.sub('{' + 'username' + '}', CGI.escape(username.to_s))
+      local_var_path = '/user/{username}'.sub('{' + 'username' + '}', CGI.escape(username.to_s).gsub('%2F', '/'))
 
       # query parameters
       query_params = opts[:query_params] || {}
@@ -472,7 +471,7 @@ module Petstore
         fail ArgumentError, "Missing the required parameter 'user' when calling UserApi.update_user"
       end
       # resource path
-      local_var_path = '/user/{username}'.sub('{' + 'username' + '}', CGI.escape(username.to_s))
+      local_var_path = '/user/{username}'.sub('{' + 'username' + '}', CGI.escape(username.to_s).gsub('%2F', '/'))
 
       # query parameters
       query_params = opts[:query_params] || {}

samples/openapi3/client/petstore/ruby/lib/petstore/api_client.rb

@@ -15,7 +15,6 @@ require 'json'
 require 'logger'
 require 'tempfile'
 require 'typhoeus'
-require 'uri'
 
 module Petstore
   class ApiClient
@@ -262,7 +261,7 @@ module Petstore
     def build_request_url(path)
       # Add leading and trailing slashes to path
       path = "/#{path}".gsub(/\/+/, '/')
-      URI.encode(@config.base_url + path)
+      @config.base_url + path
     end
 
     # Builds the HTTP request body

samples/openapi3/client/petstore/ruby/lib/petstore/configuration.rb

@@ -10,8 +10,6 @@ OpenAPI Generator version: 5.0.0-SNAPSHOT
 
 =end
 
-require 'uri'
-
 module Petstore
   class Configuration
     # Defines url scheme
@@ -174,8 +172,7 @@ module Petstore
     end
 
     def base_url
-      url = "#{scheme}://#{[host, base_path].join('/').gsub(/\/+/, '/')}".sub(/\/+\z/, '')
-      URI.encode(url)
+      "#{scheme}://#{[host, base_path].join('/').gsub(/\/+/, '/')}".sub(/\/+\z/, '')
     end
 
     # Gets API key (with prefix if set).

samples/openapi3/client/petstore/ruby/lib/petstore/models/inline_object.rb

@@ -0,0 +1,207 @@
+=begin
+#OpenAPI Petstore
+
+#This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+The version of the OpenAPI document: 1.0.0
+
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.1.0-SNAPSHOT
+
+=end
+
+require 'date'
+
+module Petstore
+  class InlineObject
+    # Updated name of the pet
+    attr_accessor :name
+
+    # Updated status of the pet
+    attr_accessor :status
+
+    # Attribute mapping from ruby-style variable name to JSON key.
+    def self.attribute_map
+      {
+        :'name' => :'name',
+        :'status' => :'status'
+      }
+    end
+
+    # Attribute type mapping.
+    def self.openapi_types
+      {
+        :'name' => :'String',
+        :'status' => :'String'
+      }
+    end
+
+    # Initializes the object
+    # @param [Hash] attributes Model attributes in the form of hash
+    def initialize(attributes = {})
+      if (!attributes.is_a?(Hash))
+        fail ArgumentError, "The input argument (attributes) must be a hash in `Petstore::InlineObject` initialize method"
+      end
+
+      # check to see if the attribute exists and convert string to symbol for hash key
+      attributes = attributes.each_with_object({}) { |(k, v), h|
+        if (!self.class.attribute_map.key?(k.to_sym))
+          fail ArgumentError, "`#{k}` is not a valid attribute in `Petstore::InlineObject`. Please check the name to make sure it's valid. List of attributes: " + self.class.attribute_map.keys.inspect
+        end
+        h[k.to_sym] = v
+      }
+
+      if attributes.key?(:'name')
+        self.name = attributes[:'name']
+      end
+
+      if attributes.key?(:'status')
+        self.status = attributes[:'status']
+      end
+    end
+
+    # Show invalid properties with the reasons. Usually used together with valid?
+    # @return Array for valid properties with the reasons
+    def list_invalid_properties
+      invalid_properties = Array.new
+      invalid_properties
+    end
+
+    # Check to see if the all the properties in the model are valid
+    # @return true if the model is valid
+    def valid?
+      true
+    end
+
+    # Checks equality by comparing each attribute.
+    # @param [Object] Object to be compared
+    def ==(o)
+      return true if self.equal?(o)
+      self.class == o.class &&
+          name == o.name &&
+          status == o.status
+    end
+
+    # @see the `==` method
+    # @param [Object] Object to be compared
+    def eql?(o)
+      self == o
+    end
+
+    # Calculates hash code according to all attributes.
+    # @return [Integer] Hash code
+    def hash
+      [name, status].hash
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def build_from_hash(attributes)
+      return nil unless attributes.is_a?(Hash)
+      self.class.openapi_types.each_pair do |key, type|
+        if type =~ /\AArray<(.*)>/i
+          # check to ensure the input is an array given that the attribute
+          # is documented as an array but the input is not
+          if attributes[self.class.attribute_map[key]].is_a?(Array)
+            self.send("#{key}=", attributes[self.class.attribute_map[key]].map { |v| _deserialize($1, v) })
+          end
+        elsif !attributes[self.class.attribute_map[key]].nil?
+          self.send("#{key}=", _deserialize(type, attributes[self.class.attribute_map[key]]))
+        end # or else data not found in attributes(hash), not an issue as the data can be optional
+      end
+
+      self
+    end
+
+    # Deserializes the data based on type
+    # @param string type Data type
+    # @param string value Value to be deserialized
+    # @return [Object] Deserialized data
+    def _deserialize(type, value)
+      case type.to_sym
+      when :DateTime
+        DateTime.parse(value)
+      when :Date
+        Date.parse(value)
+      when :String
+        value.to_s
+      when :Integer
+        value.to_i
+      when :Float
+        value.to_f
+      when :Boolean
+        if value.to_s =~ /\A(true|t|yes|y|1)\z/i
+          true
+        else
+          false
+        end
+      when :Object
+        # generic object (usually a Hash), return directly
+        value
+      when /\AArray<(?<inner_type>.+)>\z/
+        inner_type = Regexp.last_match[:inner_type]
+        value.map { |v| _deserialize(inner_type, v) }
+      when /\AHash<(?<k_type>.+?), (?<v_type>.+)>\z/
+        k_type = Regexp.last_match[:k_type]
+        v_type = Regexp.last_match[:v_type]
+        {}.tap do |hash|
+          value.each do |k, v|
+            hash[_deserialize(k_type, k)] = _deserialize(v_type, v)
+          end
+        end
+      else # model
+        Petstore.const_get(type).build_from_hash(value)
+      end
+    end
+
+    # Returns the string representation of the object
+    # @return [String] String presentation of the object
+    def to_s
+      to_hash.to_s
+    end
+
+    # to_body is an alias to to_hash (backward compatibility)
+    # @return [Hash] Returns the object in the form of hash
+    def to_body
+      to_hash
+    end
+
+    # Returns the object in the form of hash
+    # @return [Hash] Returns the object in the form of hash
+    def to_hash
+      hash = {}
+      self.class.attribute_map.each_pair do |attr, param|
+        value = self.send(attr)
+        next if value.nil?
+        hash[param] = _to_hash(value)
+      end
+      hash
+    end
+
+    # Outputs non-array value in the form of hash
+    # For object, use to_hash. Otherwise, just return the value
+    # @param [Object] value Any valid value
+    # @return [Hash] Returns the value in the form of hash
+    def _to_hash(value)
+      if value.is_a?(Array)
+        value.compact.map { |v| _to_hash(v) }
+      elsif value.is_a?(Hash)
+        {}.tap do |hash|
+          value.each { |k, v| hash[k] = _to_hash(v) }
+        end
+      elsif value.respond_to? :to_hash
+        value.to_hash
+      else
+        value
+      end
+    end
+  end
+end

samples/openapi3/client/petstore/ruby/lib/petstore/models/inline_object1.rb

@@ -0,0 +1,207 @@
+=begin
+#OpenAPI Petstore
+
+#This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+The version of the OpenAPI document: 1.0.0
+
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.1.0-SNAPSHOT
+
+=end
+
+require 'date'
+
+module Petstore
+  class InlineObject1
+    # Additional data to pass to server
+    attr_accessor :additional_metadata
+
+    # file to upload
+    attr_accessor :file
+
+    # Attribute mapping from ruby-style variable name to JSON key.
+    def self.attribute_map
+      {
+        :'additional_metadata' => :'additionalMetadata',
+        :'file' => :'file'
+      }
+    end
+
+    # Attribute type mapping.
+    def self.openapi_types
+      {
+        :'additional_metadata' => :'String',
+        :'file' => :'File'
+      }
+    end
+
+    # Initializes the object
+    # @param [Hash] attributes Model attributes in the form of hash
+    def initialize(attributes = {})
+      if (!attributes.is_a?(Hash))
+        fail ArgumentError, "The input argument (attributes) must be a hash in `Petstore::InlineObject1` initialize method"
+      end
+
+      # check to see if the attribute exists and convert string to symbol for hash key
+      attributes = attributes.each_with_object({}) { |(k, v), h|
+        if (!self.class.attribute_map.key?(k.to_sym))
+          fail ArgumentError, "`#{k}` is not a valid attribute in `Petstore::InlineObject1`. Please check the name to make sure it's valid. List of attributes: " + self.class.attribute_map.keys.inspect
+        end
+        h[k.to_sym] = v
+      }
+
+      if attributes.key?(:'additional_metadata')
+        self.additional_metadata = attributes[:'additional_metadata']
+      end
+
+      if attributes.key?(:'file')
+        self.file = attributes[:'file']
+      end
+    end
+
+    # Show invalid properties with the reasons. Usually used together with valid?
+    # @return Array for valid properties with the reasons
+    def list_invalid_properties
+      invalid_properties = Array.new
+      invalid_properties
+    end
+
+    # Check to see if the all the properties in the model are valid
+    # @return true if the model is valid
+    def valid?
+      true
+    end
+
+    # Checks equality by comparing each attribute.
+    # @param [Object] Object to be compared
+    def ==(o)
+      return true if self.equal?(o)
+      self.class == o.class &&
+          additional_metadata == o.additional_metadata &&
+          file == o.file
+    end
+
+    # @see the `==` method
+    # @param [Object] Object to be compared
+    def eql?(o)
+      self == o
+    end
+
+    # Calculates hash code according to all attributes.
+    # @return [Integer] Hash code
+    def hash
+      [additional_metadata, file].hash
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def build_from_hash(attributes)
+      return nil unless attributes.is_a?(Hash)
+      self.class.openapi_types.each_pair do |key, type|
+        if type =~ /\AArray<(.*)>/i
+          # check to ensure the input is an array given that the attribute
+          # is documented as an array but the input is not
+          if attributes[self.class.attribute_map[key]].is_a?(Array)
+            self.send("#{key}=", attributes[self.class.attribute_map[key]].map { |v| _deserialize($1, v) })
+          end
+        elsif !attributes[self.class.attribute_map[key]].nil?
+          self.send("#{key}=", _deserialize(type, attributes[self.class.attribute_map[key]]))
+        end # or else data not found in attributes(hash), not an issue as the data can be optional
+      end
+
+      self
+    end
+
+    # Deserializes the data based on type
+    # @param string type Data type
+    # @param string value Value to be deserialized
+    # @return [Object] Deserialized data
+    def _deserialize(type, value)
+      case type.to_sym
+      when :DateTime
+        DateTime.parse(value)
+      when :Date
+        Date.parse(value)
+      when :String
+        value.to_s
+      when :Integer
+        value.to_i
+      when :Float
+        value.to_f
+      when :Boolean
+        if value.to_s =~ /\A(true|t|yes|y|1)\z/i
+          true
+        else
+          false
+        end
+      when :Object
+        # generic object (usually a Hash), return directly
+        value
+      when /\AArray<(?<inner_type>.+)>\z/
+        inner_type = Regexp.last_match[:inner_type]
+        value.map { |v| _deserialize(inner_type, v) }
+      when /\AHash<(?<k_type>.+?), (?<v_type>.+)>\z/
+        k_type = Regexp.last_match[:k_type]
+        v_type = Regexp.last_match[:v_type]
+        {}.tap do |hash|
+          value.each do |k, v|
+            hash[_deserialize(k_type, k)] = _deserialize(v_type, v)
+          end
+        end
+      else # model
+        Petstore.const_get(type).build_from_hash(value)
+      end
+    end
+
+    # Returns the string representation of the object
+    # @return [String] String presentation of the object
+    def to_s
+      to_hash.to_s
+    end
+
+    # to_body is an alias to to_hash (backward compatibility)
+    # @return [Hash] Returns the object in the form of hash
+    def to_body
+      to_hash
+    end
+
+    # Returns the object in the form of hash
+    # @return [Hash] Returns the object in the form of hash
+    def to_hash
+      hash = {}
+      self.class.attribute_map.each_pair do |attr, param|
+        value = self.send(attr)
+        next if value.nil?
+        hash[param] = _to_hash(value)
+      end
+      hash
+    end
+
+    # Outputs non-array value in the form of hash
+    # For object, use to_hash. Otherwise, just return the value
+    # @param [Object] value Any valid value
+    # @return [Hash] Returns the value in the form of hash
+    def _to_hash(value)
+      if value.is_a?(Array)
+        value.compact.map { |v| _to_hash(v) }
+      elsif value.is_a?(Hash)
+        {}.tap do |hash|
+          value.each { |k, v| hash[k] = _to_hash(v) }
+        end
+      elsif value.respond_to? :to_hash
+        value.to_hash
+      else
+        value
+      end
+    end
+  end
+end

samples/openapi3/client/petstore/ruby/lib/petstore/models/inline_object2.rb

@@ -0,0 +1,245 @@
+=begin
+#OpenAPI Petstore
+
+#This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+The version of the OpenAPI document: 1.0.0
+
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.1.0-SNAPSHOT
+
+=end
+
+require 'date'
+
+module Petstore
+  class InlineObject2
+    # Form parameter enum test (string array)
+    attr_accessor :enum_form_string_array
+
+    # Form parameter enum test (string)
+    attr_accessor :enum_form_string
+
+    class EnumAttributeValidator
+      attr_reader :datatype
+      attr_reader :allowable_values
+
+      def initialize(datatype, allowable_values)
+        @allowable_values = allowable_values.map do |value|
+          case datatype.to_s
+          when /Integer/i
+            value.to_i
+          when /Float/i
+            value.to_f
+          else
+            value
+          end
+        end
+      end
+
+      def valid?(value)
+        !value || allowable_values.include?(value)
+      end
+    end
+
+    # Attribute mapping from ruby-style variable name to JSON key.
+    def self.attribute_map
+      {
+        :'enum_form_string_array' => :'enum_form_string_array',
+        :'enum_form_string' => :'enum_form_string'
+      }
+    end
+
+    # Attribute type mapping.
+    def self.openapi_types
+      {
+        :'enum_form_string_array' => :'Array<String>',
+        :'enum_form_string' => :'String'
+      }
+    end
+
+    # Initializes the object
+    # @param [Hash] attributes Model attributes in the form of hash
+    def initialize(attributes = {})
+      if (!attributes.is_a?(Hash))
+        fail ArgumentError, "The input argument (attributes) must be a hash in `Petstore::InlineObject2` initialize method"
+      end
+
+      # check to see if the attribute exists and convert string to symbol for hash key
+      attributes = attributes.each_with_object({}) { |(k, v), h|
+        if (!self.class.attribute_map.key?(k.to_sym))
+          fail ArgumentError, "`#{k}` is not a valid attribute in `Petstore::InlineObject2`. Please check the name to make sure it's valid. List of attributes: " + self.class.attribute_map.keys.inspect
+        end
+        h[k.to_sym] = v
+      }
+
+      if attributes.key?(:'enum_form_string_array')
+        if (value = attributes[:'enum_form_string_array']).is_a?(Array)
+          self.enum_form_string_array = value
+        end
+      end
+
+      if attributes.key?(:'enum_form_string')
+        self.enum_form_string = attributes[:'enum_form_string']
+      else
+        self.enum_form_string = '-efg'
+      end
+    end
+
+    # Show invalid properties with the reasons. Usually used together with valid?
+    # @return Array for valid properties with the reasons
+    def list_invalid_properties
+      invalid_properties = Array.new
+      invalid_properties
+    end
+
+    # Check to see if the all the properties in the model are valid
+    # @return true if the model is valid
+    def valid?
+      enum_form_string_validator = EnumAttributeValidator.new('String', ["_abc", "-efg", "(xyz)"])
+      return false unless enum_form_string_validator.valid?(@enum_form_string)
+      true
+    end
+
+    # Custom attribute writer method checking allowed values (enum).
+    # @param [Object] enum_form_string Object to be assigned
+    def enum_form_string=(enum_form_string)
+      validator = EnumAttributeValidator.new('String', ["_abc", "-efg", "(xyz)"])
+      unless validator.valid?(enum_form_string)
+        fail ArgumentError, "invalid value for \"enum_form_string\", must be one of #{validator.allowable_values}."
+      end
+      @enum_form_string = enum_form_string
+    end
+
+    # Checks equality by comparing each attribute.
+    # @param [Object] Object to be compared
+    def ==(o)
+      return true if self.equal?(o)
+      self.class == o.class &&
+          enum_form_string_array == o.enum_form_string_array &&
+          enum_form_string == o.enum_form_string
+    end
+
+    # @see the `==` method
+    # @param [Object] Object to be compared
+    def eql?(o)
+      self == o
+    end
+
+    # Calculates hash code according to all attributes.
+    # @return [Integer] Hash code
+    def hash
+      [enum_form_string_array, enum_form_string].hash
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def build_from_hash(attributes)
+      return nil unless attributes.is_a?(Hash)
+      self.class.openapi_types.each_pair do |key, type|
+        if type =~ /\AArray<(.*)>/i
+          # check to ensure the input is an array given that the attribute
+          # is documented as an array but the input is not
+          if attributes[self.class.attribute_map[key]].is_a?(Array)
+            self.send("#{key}=", attributes[self.class.attribute_map[key]].map { |v| _deserialize($1, v) })
+          end
+        elsif !attributes[self.class.attribute_map[key]].nil?
+          self.send("#{key}=", _deserialize(type, attributes[self.class.attribute_map[key]]))
+        end # or else data not found in attributes(hash), not an issue as the data can be optional
+      end
+
+      self
+    end
+
+    # Deserializes the data based on type
+    # @param string type Data type
+    # @param string value Value to be deserialized
+    # @return [Object] Deserialized data
+    def _deserialize(type, value)
+      case type.to_sym
+      when :DateTime
+        DateTime.parse(value)
+      when :Date
+        Date.parse(value)
+      when :String
+        value.to_s
+      when :Integer
+        value.to_i
+      when :Float
+        value.to_f
+      when :Boolean
+        if value.to_s =~ /\A(true|t|yes|y|1)\z/i
+          true
+        else
+          false
+        end
+      when :Object
+        # generic object (usually a Hash), return directly
+        value
+      when /\AArray<(?<inner_type>.+)>\z/
+        inner_type = Regexp.last_match[:inner_type]
+        value.map { |v| _deserialize(inner_type, v) }
+      when /\AHash<(?<k_type>.+?), (?<v_type>.+)>\z/
+        k_type = Regexp.last_match[:k_type]
+        v_type = Regexp.last_match[:v_type]
+        {}.tap do |hash|
+          value.each do |k, v|
+            hash[_deserialize(k_type, k)] = _deserialize(v_type, v)
+          end
+        end
+      else # model
+        Petstore.const_get(type).build_from_hash(value)
+      end
+    end
+
+    # Returns the string representation of the object
+    # @return [String] String presentation of the object
+    def to_s
+      to_hash.to_s
+    end
+
+    # to_body is an alias to to_hash (backward compatibility)
+    # @return [Hash] Returns the object in the form of hash
+    def to_body
+      to_hash
+    end
+
+    # Returns the object in the form of hash
+    # @return [Hash] Returns the object in the form of hash
+    def to_hash
+      hash = {}
+      self.class.attribute_map.each_pair do |attr, param|
+        value = self.send(attr)
+        next if value.nil?
+        hash[param] = _to_hash(value)
+      end
+      hash
+    end
+
+    # Outputs non-array value in the form of hash
+    # For object, use to_hash. Otherwise, just return the value
+    # @param [Object] value Any valid value
+    # @return [Hash] Returns the value in the form of hash
+    def _to_hash(value)
+      if value.is_a?(Array)
+        value.compact.map { |v| _to_hash(v) }
+      elsif value.is_a?(Hash)
+        {}.tap do |hash|
+          value.each { |k, v| hash[k] = _to_hash(v) }
+        end
+      elsif value.respond_to? :to_hash
+        value.to_hash
+      else
+        value
+      end
+    end
+  end
+end

samples/openapi3/client/petstore/ruby/lib/petstore/models/inline_object3.rb

@@ -0,0 +1,528 @@
+=begin
+#OpenAPI Petstore
+
+#This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+The version of the OpenAPI document: 1.0.0
+
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.1.0-SNAPSHOT
+
+=end
+
+require 'date'
+
+module Petstore
+  class InlineObject3
+    # None
+    attr_accessor :integer
+
+    # None
+    attr_accessor :int32
+
+    # None
+    attr_accessor :int64
+
+    # None
+    attr_accessor :number
+
+    # None
+    attr_accessor :float
+
+    # None
+    attr_accessor :double
+
+    # None
+    attr_accessor :string
+
+    # None
+    attr_accessor :pattern_without_delimiter
+
+    # None
+    attr_accessor :byte
+
+    # None
+    attr_accessor :binary
+
+    # None
+    attr_accessor :date
+
+    # None
+    attr_accessor :date_time
+
+    # None
+    attr_accessor :password
+
+    # None
+    attr_accessor :callback
+
+    # Attribute mapping from ruby-style variable name to JSON key.
+    def self.attribute_map
+      {
+        :'integer' => :'integer',
+        :'int32' => :'int32',
+        :'int64' => :'int64',
+        :'number' => :'number',
+        :'float' => :'float',
+        :'double' => :'double',
+        :'string' => :'string',
+        :'pattern_without_delimiter' => :'pattern_without_delimiter',
+        :'byte' => :'byte',
+        :'binary' => :'binary',
+        :'date' => :'date',
+        :'date_time' => :'dateTime',
+        :'password' => :'password',
+        :'callback' => :'callback'
+      }
+    end
+
+    # Attribute type mapping.
+    def self.openapi_types
+      {
+        :'integer' => :'Integer',
+        :'int32' => :'Integer',
+        :'int64' => :'Integer',
+        :'number' => :'Float',
+        :'float' => :'Float',
+        :'double' => :'Float',
+        :'string' => :'String',
+        :'pattern_without_delimiter' => :'String',
+        :'byte' => :'String',
+        :'binary' => :'File',
+        :'date' => :'Date',
+        :'date_time' => :'DateTime',
+        :'password' => :'String',
+        :'callback' => :'String'
+      }
+    end
+
+    # Initializes the object
+    # @param [Hash] attributes Model attributes in the form of hash
+    def initialize(attributes = {})
+      if (!attributes.is_a?(Hash))
+        fail ArgumentError, "The input argument (attributes) must be a hash in `Petstore::InlineObject3` initialize method"
+      end
+
+      # check to see if the attribute exists and convert string to symbol for hash key
+      attributes = attributes.each_with_object({}) { |(k, v), h|
+        if (!self.class.attribute_map.key?(k.to_sym))
+          fail ArgumentError, "`#{k}` is not a valid attribute in `Petstore::InlineObject3`. Please check the name to make sure it's valid. List of attributes: " + self.class.attribute_map.keys.inspect
+        end
+        h[k.to_sym] = v
+      }
+
+      if attributes.key?(:'integer')
+        self.integer = attributes[:'integer']
+      end
+
+      if attributes.key?(:'int32')
+        self.int32 = attributes[:'int32']
+      end
+
+      if attributes.key?(:'int64')
+        self.int64 = attributes[:'int64']
+      end
+
+      if attributes.key?(:'number')
+        self.number = attributes[:'number']
+      end
+
+      if attributes.key?(:'float')
+        self.float = attributes[:'float']
+      end
+
+      if attributes.key?(:'double')
+        self.double = attributes[:'double']
+      end
+
+      if attributes.key?(:'string')
+        self.string = attributes[:'string']
+      end
+
+      if attributes.key?(:'pattern_without_delimiter')
+        self.pattern_without_delimiter = attributes[:'pattern_without_delimiter']
+      end
+
+      if attributes.key?(:'byte')
+        self.byte = attributes[:'byte']
+      end
+
+      if attributes.key?(:'binary')
+        self.binary = attributes[:'binary']
+      end
+
+      if attributes.key?(:'date')
+        self.date = attributes[:'date']
+      end
+
+      if attributes.key?(:'date_time')
+        self.date_time = attributes[:'date_time']
+      end
+
+      if attributes.key?(:'password')
+        self.password = attributes[:'password']
+      end
+
+      if attributes.key?(:'callback')
+        self.callback = attributes[:'callback']
+      end
+    end
+
+    # Show invalid properties with the reasons. Usually used together with valid?
+    # @return Array for valid properties with the reasons
+    def list_invalid_properties
+      invalid_properties = Array.new
+      if !@integer.nil? && @integer > 100
+        invalid_properties.push('invalid value for "integer", must be smaller than or equal to 100.')
+      end
+
+      if !@integer.nil? && @integer < 10
+        invalid_properties.push('invalid value for "integer", must be greater than or equal to 10.')
+      end
+
+      if !@int32.nil? && @int32 > 200
+        invalid_properties.push('invalid value for "int32", must be smaller than or equal to 200.')
+      end
+
+      if !@int32.nil? && @int32 < 20
+        invalid_properties.push('invalid value for "int32", must be greater than or equal to 20.')
+      end
+
+      if @number.nil?
+        invalid_properties.push('invalid value for "number", number cannot be nil.')
+      end
+
+      if @number > 543.2
+        invalid_properties.push('invalid value for "number", must be smaller than or equal to 543.2.')
+      end
+
+      if @number < 32.1
+        invalid_properties.push('invalid value for "number", must be greater than or equal to 32.1.')
+      end
+
+      if !@float.nil? && @float > 987.6
+        invalid_properties.push('invalid value for "float", must be smaller than or equal to 987.6.')
+      end
+
+      if @double.nil?
+        invalid_properties.push('invalid value for "double", double cannot be nil.')
+      end
+
+      if @double > 123.4
+        invalid_properties.push('invalid value for "double", must be smaller than or equal to 123.4.')
+      end
+
+      if @double < 67.8
+        invalid_properties.push('invalid value for "double", must be greater than or equal to 67.8.')
+      end
+
+      pattern = Regexp.new(/[a-z]/i)
+      if !@string.nil? && @string !~ pattern
+        invalid_properties.push("invalid value for \"string\", must conform to the pattern #{pattern}.")
+      end
+
+      if @pattern_without_delimiter.nil?
+        invalid_properties.push('invalid value for "pattern_without_delimiter", pattern_without_delimiter cannot be nil.')
+      end
+
+      pattern = Regexp.new(/^[A-Z].*/)
+      if @pattern_without_delimiter !~ pattern
+        invalid_properties.push("invalid value for \"pattern_without_delimiter\", must conform to the pattern #{pattern}.")
+      end
+
+      if @byte.nil?
+        invalid_properties.push('invalid value for "byte", byte cannot be nil.')
+      end
+
+      if !@password.nil? && @password.to_s.length > 64
+        invalid_properties.push('invalid value for "password", the character length must be smaller than or equal to 64.')
+      end
+
+      if !@password.nil? && @password.to_s.length < 10
+        invalid_properties.push('invalid value for "password", the character length must be great than or equal to 10.')
+      end
+
+      invalid_properties
+    end
+
+    # Check to see if the all the properties in the model are valid
+    # @return true if the model is valid
+    def valid?
+      return false if !@integer.nil? && @integer > 100
+      return false if !@integer.nil? && @integer < 10
+      return false if !@int32.nil? && @int32 > 200
+      return false if !@int32.nil? && @int32 < 20
+      return false if @number.nil?
+      return false if @number > 543.2
+      return false if @number < 32.1
+      return false if !@float.nil? && @float > 987.6
+      return false if @double.nil?
+      return false if @double > 123.4
+      return false if @double < 67.8
+      return false if !@string.nil? && @string !~ Regexp.new(/[a-z]/i)
+      return false if @pattern_without_delimiter.nil?
+      return false if @pattern_without_delimiter !~ Regexp.new(/^[A-Z].*/)
+      return false if @byte.nil?
+      return false if !@password.nil? && @password.to_s.length > 64
+      return false if !@password.nil? && @password.to_s.length < 10
+      true
+    end
+
+    # Custom attribute writer method with validation
+    # @param [Object] integer Value to be assigned
+    def integer=(integer)
+      if !integer.nil? && integer > 100
+        fail ArgumentError, 'invalid value for "integer", must be smaller than or equal to 100.'
+      end
+
+      if !integer.nil? && integer < 10
+        fail ArgumentError, 'invalid value for "integer", must be greater than or equal to 10.'
+      end
+
+      @integer = integer
+    end
+
+    # Custom attribute writer method with validation
+    # @param [Object] int32 Value to be assigned
+    def int32=(int32)
+      if !int32.nil? && int32 > 200
+        fail ArgumentError, 'invalid value for "int32", must be smaller than or equal to 200.'
+      end
+
+      if !int32.nil? && int32 < 20
+        fail ArgumentError, 'invalid value for "int32", must be greater than or equal to 20.'
+      end
+
+      @int32 = int32
+    end
+
+    # Custom attribute writer method with validation
+    # @param [Object] number Value to be assigned
+    def number=(number)
+      if number.nil?
+        fail ArgumentError, 'number cannot be nil'
+      end
+
+      if number > 543.2
+        fail ArgumentError, 'invalid value for "number", must be smaller than or equal to 543.2.'
+      end
+
+      if number < 32.1
+        fail ArgumentError, 'invalid value for "number", must be greater than or equal to 32.1.'
+      end
+
+      @number = number
+    end
+
+    # Custom attribute writer method with validation
+    # @param [Object] float Value to be assigned
+    def float=(float)
+      if !float.nil? && float > 987.6
+        fail ArgumentError, 'invalid value for "float", must be smaller than or equal to 987.6.'
+      end
+
+      @float = float
+    end
+
+    # Custom attribute writer method with validation
+    # @param [Object] double Value to be assigned
+    def double=(double)
+      if double.nil?
+        fail ArgumentError, 'double cannot be nil'
+      end
+
+      if double > 123.4
+        fail ArgumentError, 'invalid value for "double", must be smaller than or equal to 123.4.'
+      end
+
+      if double < 67.8
+        fail ArgumentError, 'invalid value for "double", must be greater than or equal to 67.8.'
+      end
+
+      @double = double
+    end
+
+    # Custom attribute writer method with validation
+    # @param [Object] string Value to be assigned
+    def string=(string)
+      pattern = Regexp.new(/[a-z]/i)
+      if !string.nil? && string !~ pattern
+        fail ArgumentError, "invalid value for \"string\", must conform to the pattern #{pattern}."
+      end
+
+      @string = string
+    end
+
+    # Custom attribute writer method with validation
+    # @param [Object] pattern_without_delimiter Value to be assigned
+    def pattern_without_delimiter=(pattern_without_delimiter)
+      if pattern_without_delimiter.nil?
+        fail ArgumentError, 'pattern_without_delimiter cannot be nil'
+      end
+
+      pattern = Regexp.new(/^[A-Z].*/)
+      if pattern_without_delimiter !~ pattern
+        fail ArgumentError, "invalid value for \"pattern_without_delimiter\", must conform to the pattern #{pattern}."
+      end
+
+      @pattern_without_delimiter = pattern_without_delimiter
+    end
+
+    # Custom attribute writer method with validation
+    # @param [Object] password Value to be assigned
+    def password=(password)
+      if !password.nil? && password.to_s.length > 64
+        fail ArgumentError, 'invalid value for "password", the character length must be smaller than or equal to 64.'
+      end
+
+      if !password.nil? && password.to_s.length < 10
+        fail ArgumentError, 'invalid value for "password", the character length must be great than or equal to 10.'
+      end
+
+      @password = password
+    end
+
+    # Checks equality by comparing each attribute.
+    # @param [Object] Object to be compared
+    def ==(o)
+      return true if self.equal?(o)
+      self.class == o.class &&
+          integer == o.integer &&
+          int32 == o.int32 &&
+          int64 == o.int64 &&
+          number == o.number &&
+          float == o.float &&
+          double == o.double &&
+          string == o.string &&
+          pattern_without_delimiter == o.pattern_without_delimiter &&
+          byte == o.byte &&
+          binary == o.binary &&
+          date == o.date &&
+          date_time == o.date_time &&
+          password == o.password &&
+          callback == o.callback
+    end
+
+    # @see the `==` method
+    # @param [Object] Object to be compared
+    def eql?(o)
+      self == o
+    end
+
+    # Calculates hash code according to all attributes.
+    # @return [Integer] Hash code
+    def hash
+      [integer, int32, int64, number, float, double, string, pattern_without_delimiter, byte, binary, date, date_time, password, callback].hash
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def build_from_hash(attributes)
+      return nil unless attributes.is_a?(Hash)
+      self.class.openapi_types.each_pair do |key, type|
+        if type =~ /\AArray<(.*)>/i
+          # check to ensure the input is an array given that the attribute
+          # is documented as an array but the input is not
+          if attributes[self.class.attribute_map[key]].is_a?(Array)
+            self.send("#{key}=", attributes[self.class.attribute_map[key]].map { |v| _deserialize($1, v) })
+          end
+        elsif !attributes[self.class.attribute_map[key]].nil?
+          self.send("#{key}=", _deserialize(type, attributes[self.class.attribute_map[key]]))
+        end # or else data not found in attributes(hash), not an issue as the data can be optional
+      end
+
+      self
+    end
+
+    # Deserializes the data based on type
+    # @param string type Data type
+    # @param string value Value to be deserialized
+    # @return [Object] Deserialized data
+    def _deserialize(type, value)
+      case type.to_sym
+      when :DateTime
+        DateTime.parse(value)
+      when :Date
+        Date.parse(value)
+      when :String
+        value.to_s
+      when :Integer
+        value.to_i
+      when :Float
+        value.to_f
+      when :Boolean
+        if value.to_s =~ /\A(true|t|yes|y|1)\z/i
+          true
+        else
+          false
+        end
+      when :Object
+        # generic object (usually a Hash), return directly
+        value
+      when /\AArray<(?<inner_type>.+)>\z/
+        inner_type = Regexp.last_match[:inner_type]
+        value.map { |v| _deserialize(inner_type, v) }
+      when /\AHash<(?<k_type>.+?), (?<v_type>.+)>\z/
+        k_type = Regexp.last_match[:k_type]
+        v_type = Regexp.last_match[:v_type]
+        {}.tap do |hash|
+          value.each do |k, v|
+            hash[_deserialize(k_type, k)] = _deserialize(v_type, v)
+          end
+        end
+      else # model
+        Petstore.const_get(type).build_from_hash(value)
+      end
+    end
+
+    # Returns the string representation of the object
+    # @return [String] String presentation of the object
+    def to_s
+      to_hash.to_s
+    end
+
+    # to_body is an alias to to_hash (backward compatibility)
+    # @return [Hash] Returns the object in the form of hash
+    def to_body
+      to_hash
+    end
+
+    # Returns the object in the form of hash
+    # @return [Hash] Returns the object in the form of hash
+    def to_hash
+      hash = {}
+      self.class.attribute_map.each_pair do |attr, param|
+        value = self.send(attr)
+        next if value.nil?
+        hash[param] = _to_hash(value)
+      end
+      hash
+    end
+
+    # Outputs non-array value in the form of hash
+    # For object, use to_hash. Otherwise, just return the value
+    # @param [Object] value Any valid value
+    # @return [Hash] Returns the value in the form of hash
+    def _to_hash(value)
+      if value.is_a?(Array)
+        value.compact.map { |v| _to_hash(v) }
+      elsif value.is_a?(Hash)
+        {}.tap do |hash|
+          value.each { |k, v| hash[k] = _to_hash(v) }
+        end
+      elsif value.respond_to? :to_hash
+        value.to_hash
+      else
+        value
+      end
+    end
+  end
+end

samples/openapi3/client/petstore/ruby/lib/petstore/models/inline_object4.rb

@@ -0,0 +1,217 @@
+=begin
+#OpenAPI Petstore
+
+#This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+The version of the OpenAPI document: 1.0.0
+
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.1.0-SNAPSHOT
+
+=end
+
+require 'date'
+
+module Petstore
+  class InlineObject4
+    # field1
+    attr_accessor :param
+
+    # field2
+    attr_accessor :param2
+
+    # Attribute mapping from ruby-style variable name to JSON key.
+    def self.attribute_map
+      {
+        :'param' => :'param',
+        :'param2' => :'param2'
+      }
+    end
+
+    # Attribute type mapping.
+    def self.openapi_types
+      {
+        :'param' => :'String',
+        :'param2' => :'String'
+      }
+    end
+
+    # Initializes the object
+    # @param [Hash] attributes Model attributes in the form of hash
+    def initialize(attributes = {})
+      if (!attributes.is_a?(Hash))
+        fail ArgumentError, "The input argument (attributes) must be a hash in `Petstore::InlineObject4` initialize method"
+      end
+
+      # check to see if the attribute exists and convert string to symbol for hash key
+      attributes = attributes.each_with_object({}) { |(k, v), h|
+        if (!self.class.attribute_map.key?(k.to_sym))
+          fail ArgumentError, "`#{k}` is not a valid attribute in `Petstore::InlineObject4`. Please check the name to make sure it's valid. List of attributes: " + self.class.attribute_map.keys.inspect
+        end
+        h[k.to_sym] = v
+      }
+
+      if attributes.key?(:'param')
+        self.param = attributes[:'param']
+      end
+
+      if attributes.key?(:'param2')
+        self.param2 = attributes[:'param2']
+      end
+    end
+
+    # Show invalid properties with the reasons. Usually used together with valid?
+    # @return Array for valid properties with the reasons
+    def list_invalid_properties
+      invalid_properties = Array.new
+      if @param.nil?
+        invalid_properties.push('invalid value for "param", param cannot be nil.')
+      end
+
+      if @param2.nil?
+        invalid_properties.push('invalid value for "param2", param2 cannot be nil.')
+      end
+
+      invalid_properties
+    end
+
+    # Check to see if the all the properties in the model are valid
+    # @return true if the model is valid
+    def valid?
+      return false if @param.nil?
+      return false if @param2.nil?
+      true
+    end
+
+    # Checks equality by comparing each attribute.
+    # @param [Object] Object to be compared
+    def ==(o)
+      return true if self.equal?(o)
+      self.class == o.class &&
+          param == o.param &&
+          param2 == o.param2
+    end
+
+    # @see the `==` method
+    # @param [Object] Object to be compared
+    def eql?(o)
+      self == o
+    end
+
+    # Calculates hash code according to all attributes.
+    # @return [Integer] Hash code
+    def hash
+      [param, param2].hash
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def build_from_hash(attributes)
+      return nil unless attributes.is_a?(Hash)
+      self.class.openapi_types.each_pair do |key, type|
+        if type =~ /\AArray<(.*)>/i
+          # check to ensure the input is an array given that the attribute
+          # is documented as an array but the input is not
+          if attributes[self.class.attribute_map[key]].is_a?(Array)
+            self.send("#{key}=", attributes[self.class.attribute_map[key]].map { |v| _deserialize($1, v) })
+          end
+        elsif !attributes[self.class.attribute_map[key]].nil?
+          self.send("#{key}=", _deserialize(type, attributes[self.class.attribute_map[key]]))
+        end # or else data not found in attributes(hash), not an issue as the data can be optional
+      end
+
+      self
+    end
+
+    # Deserializes the data based on type
+    # @param string type Data type
+    # @param string value Value to be deserialized
+    # @return [Object] Deserialized data
+    def _deserialize(type, value)
+      case type.to_sym
+      when :DateTime
+        DateTime.parse(value)
+      when :Date
+        Date.parse(value)
+      when :String
+        value.to_s
+      when :Integer
+        value.to_i
+      when :Float
+        value.to_f
+      when :Boolean
+        if value.to_s =~ /\A(true|t|yes|y|1)\z/i
+          true
+        else
+          false
+        end
+      when :Object
+        # generic object (usually a Hash), return directly
+        value
+      when /\AArray<(?<inner_type>.+)>\z/
+        inner_type = Regexp.last_match[:inner_type]
+        value.map { |v| _deserialize(inner_type, v) }
+      when /\AHash<(?<k_type>.+?), (?<v_type>.+)>\z/
+        k_type = Regexp.last_match[:k_type]
+        v_type = Regexp.last_match[:v_type]
+        {}.tap do |hash|
+          value.each do |k, v|
+            hash[_deserialize(k_type, k)] = _deserialize(v_type, v)
+          end
+        end
+      else # model
+        Petstore.const_get(type).build_from_hash(value)
+      end
+    end
+
+    # Returns the string representation of the object
+    # @return [String] String presentation of the object
+    def to_s
+      to_hash.to_s
+    end
+
+    # to_body is an alias to to_hash (backward compatibility)
+    # @return [Hash] Returns the object in the form of hash
+    def to_body
+      to_hash
+    end
+
+    # Returns the object in the form of hash
+    # @return [Hash] Returns the object in the form of hash
+    def to_hash
+      hash = {}
+      self.class.attribute_map.each_pair do |attr, param|
+        value = self.send(attr)
+        next if value.nil?
+        hash[param] = _to_hash(value)
+      end
+      hash
+    end
+
+    # Outputs non-array value in the form of hash
+    # For object, use to_hash. Otherwise, just return the value
+    # @param [Object] value Any valid value
+    # @return [Hash] Returns the value in the form of hash
+    def _to_hash(value)
+      if value.is_a?(Array)
+        value.compact.map { |v| _to_hash(v) }
+      elsif value.is_a?(Hash)
+        {}.tap do |hash|
+          value.each { |k, v| hash[k] = _to_hash(v) }
+        end
+      elsif value.respond_to? :to_hash
+        value.to_hash
+      else
+        value
+      end
+    end
+  end
+end

samples/openapi3/client/petstore/ruby/lib/petstore/models/inline_object5.rb

@@ -0,0 +1,212 @@
+=begin
+#OpenAPI Petstore
+
+#This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+The version of the OpenAPI document: 1.0.0
+
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.1.0-SNAPSHOT
+
+=end
+
+require 'date'
+
+module Petstore
+  class InlineObject5
+    # Additional data to pass to server
+    attr_accessor :additional_metadata
+
+    # file to upload
+    attr_accessor :required_file
+
+    # Attribute mapping from ruby-style variable name to JSON key.
+    def self.attribute_map
+      {
+        :'additional_metadata' => :'additionalMetadata',
+        :'required_file' => :'requiredFile'
+      }
+    end
+
+    # Attribute type mapping.
+    def self.openapi_types
+      {
+        :'additional_metadata' => :'String',
+        :'required_file' => :'File'
+      }
+    end
+
+    # Initializes the object
+    # @param [Hash] attributes Model attributes in the form of hash
+    def initialize(attributes = {})
+      if (!attributes.is_a?(Hash))
+        fail ArgumentError, "The input argument (attributes) must be a hash in `Petstore::InlineObject5` initialize method"
+      end
+
+      # check to see if the attribute exists and convert string to symbol for hash key
+      attributes = attributes.each_with_object({}) { |(k, v), h|
+        if (!self.class.attribute_map.key?(k.to_sym))
+          fail ArgumentError, "`#{k}` is not a valid attribute in `Petstore::InlineObject5`. Please check the name to make sure it's valid. List of attributes: " + self.class.attribute_map.keys.inspect
+        end
+        h[k.to_sym] = v
+      }
+
+      if attributes.key?(:'additional_metadata')
+        self.additional_metadata = attributes[:'additional_metadata']
+      end
+
+      if attributes.key?(:'required_file')
+        self.required_file = attributes[:'required_file']
+      end
+    end
+
+    # Show invalid properties with the reasons. Usually used together with valid?
+    # @return Array for valid properties with the reasons
+    def list_invalid_properties
+      invalid_properties = Array.new
+      if @required_file.nil?
+        invalid_properties.push('invalid value for "required_file", required_file cannot be nil.')
+      end
+
+      invalid_properties
+    end
+
+    # Check to see if the all the properties in the model are valid
+    # @return true if the model is valid
+    def valid?
+      return false if @required_file.nil?
+      true
+    end
+
+    # Checks equality by comparing each attribute.
+    # @param [Object] Object to be compared
+    def ==(o)
+      return true if self.equal?(o)
+      self.class == o.class &&
+          additional_metadata == o.additional_metadata &&
+          required_file == o.required_file
+    end
+
+    # @see the `==` method
+    # @param [Object] Object to be compared
+    def eql?(o)
+      self == o
+    end
+
+    # Calculates hash code according to all attributes.
+    # @return [Integer] Hash code
+    def hash
+      [additional_metadata, required_file].hash
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def build_from_hash(attributes)
+      return nil unless attributes.is_a?(Hash)
+      self.class.openapi_types.each_pair do |key, type|
+        if type =~ /\AArray<(.*)>/i
+          # check to ensure the input is an array given that the attribute
+          # is documented as an array but the input is not
+          if attributes[self.class.attribute_map[key]].is_a?(Array)
+            self.send("#{key}=", attributes[self.class.attribute_map[key]].map { |v| _deserialize($1, v) })
+          end
+        elsif !attributes[self.class.attribute_map[key]].nil?
+          self.send("#{key}=", _deserialize(type, attributes[self.class.attribute_map[key]]))
+        end # or else data not found in attributes(hash), not an issue as the data can be optional
+      end
+
+      self
+    end
+
+    # Deserializes the data based on type
+    # @param string type Data type
+    # @param string value Value to be deserialized
+    # @return [Object] Deserialized data
+    def _deserialize(type, value)
+      case type.to_sym
+      when :DateTime
+        DateTime.parse(value)
+      when :Date
+        Date.parse(value)
+      when :String
+        value.to_s
+      when :Integer
+        value.to_i
+      when :Float
+        value.to_f
+      when :Boolean
+        if value.to_s =~ /\A(true|t|yes|y|1)\z/i
+          true
+        else
+          false
+        end
+      when :Object
+        # generic object (usually a Hash), return directly
+        value
+      when /\AArray<(?<inner_type>.+)>\z/
+        inner_type = Regexp.last_match[:inner_type]
+        value.map { |v| _deserialize(inner_type, v) }
+      when /\AHash<(?<k_type>.+?), (?<v_type>.+)>\z/
+        k_type = Regexp.last_match[:k_type]
+        v_type = Regexp.last_match[:v_type]
+        {}.tap do |hash|
+          value.each do |k, v|
+            hash[_deserialize(k_type, k)] = _deserialize(v_type, v)
+          end
+        end
+      else # model
+        Petstore.const_get(type).build_from_hash(value)
+      end
+    end
+
+    # Returns the string representation of the object
+    # @return [String] String presentation of the object
+    def to_s
+      to_hash.to_s
+    end
+
+    # to_body is an alias to to_hash (backward compatibility)
+    # @return [Hash] Returns the object in the form of hash
+    def to_body
+      to_hash
+    end
+
+    # Returns the object in the form of hash
+    # @return [Hash] Returns the object in the form of hash
+    def to_hash
+      hash = {}
+      self.class.attribute_map.each_pair do |attr, param|
+        value = self.send(attr)
+        next if value.nil?
+        hash[param] = _to_hash(value)
+      end
+      hash
+    end
+
+    # Outputs non-array value in the form of hash
+    # For object, use to_hash. Otherwise, just return the value
+    # @param [Object] value Any valid value
+    # @return [Hash] Returns the value in the form of hash
+    def _to_hash(value)
+      if value.is_a?(Array)
+        value.compact.map { |v| _to_hash(v) }
+      elsif value.is_a?(Hash)
+        {}.tap do |hash|
+          value.each { |k, v| hash[k] = _to_hash(v) }
+        end
+      elsif value.respond_to? :to_hash
+        value.to_hash
+      else
+        value
+      end
+    end
+  end
+end

samples/openapi3/client/petstore/ruby/spec/models/inline_object1_spec.rb

@@ -0,0 +1,47 @@
+=begin
+#OpenAPI Petstore
+
+#This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+The version of the OpenAPI document: 1.0.0
+
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.1.0-SNAPSHOT
+
+=end
+
+require 'spec_helper'
+require 'json'
+require 'date'
+
+# Unit tests for Petstore::InlineObject1
+# Automatically generated by openapi-generator (https://openapi-generator.tech)
+# Please update as you see appropriate
+describe 'InlineObject1' do
+  before do
+    # run before each test
+    @instance = Petstore::InlineObject1.new
+  end
+
+  after do
+    # run after each test
+  end
+
+  describe 'test an instance of InlineObject1' do
+    it 'should create an instance of InlineObject1' do
+      expect(@instance).to be_instance_of(Petstore::InlineObject1)
+    end
+  end
+  describe 'test attribute "additional_metadata"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "file"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+end

samples/openapi3/client/petstore/ruby/spec/models/inline_object2_spec.rb

@@ -0,0 +1,55 @@
+=begin
+#OpenAPI Petstore
+
+#This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+The version of the OpenAPI document: 1.0.0
+
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.1.0-SNAPSHOT
+
+=end
+
+require 'spec_helper'
+require 'json'
+require 'date'
+
+# Unit tests for Petstore::InlineObject2
+# Automatically generated by openapi-generator (https://openapi-generator.tech)
+# Please update as you see appropriate
+describe 'InlineObject2' do
+  before do
+    # run before each test
+    @instance = Petstore::InlineObject2.new
+  end
+
+  after do
+    # run after each test
+  end
+
+  describe 'test an instance of InlineObject2' do
+    it 'should create an instance of InlineObject2' do
+      expect(@instance).to be_instance_of(Petstore::InlineObject2)
+    end
+  end
+  describe 'test attribute "enum_form_string_array"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+      # validator = Petstore::EnumTest::EnumAttributeValidator.new('Array<String>', [">", "$"])
+      # validator.allowable_values.each do |value|
+      #   expect { @instance.enum_form_string_array = value }.not_to raise_error
+      # end
+    end
+  end
+
+  describe 'test attribute "enum_form_string"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+      # validator = Petstore::EnumTest::EnumAttributeValidator.new('String', ["_abc", "-efg", "(xyz)"])
+      # validator.allowable_values.each do |value|
+      #   expect { @instance.enum_form_string = value }.not_to raise_error
+      # end
+    end
+  end
+
+end

samples/openapi3/client/petstore/ruby/spec/models/inline_object3_spec.rb

@@ -0,0 +1,119 @@
+=begin
+#OpenAPI Petstore
+
+#This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+The version of the OpenAPI document: 1.0.0
+
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.1.0-SNAPSHOT
+
+=end
+
+require 'spec_helper'
+require 'json'
+require 'date'
+
+# Unit tests for Petstore::InlineObject3
+# Automatically generated by openapi-generator (https://openapi-generator.tech)
+# Please update as you see appropriate
+describe 'InlineObject3' do
+  before do
+    # run before each test
+    @instance = Petstore::InlineObject3.new
+  end
+
+  after do
+    # run after each test
+  end
+
+  describe 'test an instance of InlineObject3' do
+    it 'should create an instance of InlineObject3' do
+      expect(@instance).to be_instance_of(Petstore::InlineObject3)
+    end
+  end
+  describe 'test attribute "integer"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "int32"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "int64"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "number"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "float"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "double"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "string"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "pattern_without_delimiter"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "byte"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "binary"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "date"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "date_time"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "password"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "callback"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+end

samples/openapi3/client/petstore/ruby/spec/models/inline_object4_spec.rb

@@ -0,0 +1,47 @@
+=begin
+#OpenAPI Petstore
+
+#This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+The version of the OpenAPI document: 1.0.0
+
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.1.0-SNAPSHOT
+
+=end
+
+require 'spec_helper'
+require 'json'
+require 'date'
+
+# Unit tests for Petstore::InlineObject4
+# Automatically generated by openapi-generator (https://openapi-generator.tech)
+# Please update as you see appropriate
+describe 'InlineObject4' do
+  before do
+    # run before each test
+    @instance = Petstore::InlineObject4.new
+  end
+
+  after do
+    # run after each test
+  end
+
+  describe 'test an instance of InlineObject4' do
+    it 'should create an instance of InlineObject4' do
+      expect(@instance).to be_instance_of(Petstore::InlineObject4)
+    end
+  end
+  describe 'test attribute "param"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "param2"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+end

samples/openapi3/client/petstore/ruby/spec/models/inline_object5_spec.rb

@@ -0,0 +1,47 @@
+=begin
+#OpenAPI Petstore
+
+#This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+The version of the OpenAPI document: 1.0.0
+
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.1.0-SNAPSHOT
+
+=end
+
+require 'spec_helper'
+require 'json'
+require 'date'
+
+# Unit tests for Petstore::InlineObject5
+# Automatically generated by openapi-generator (https://openapi-generator.tech)
+# Please update as you see appropriate
+describe 'InlineObject5' do
+  before do
+    # run before each test
+    @instance = Petstore::InlineObject5.new
+  end
+
+  after do
+    # run after each test
+  end
+
+  describe 'test an instance of InlineObject5' do
+    it 'should create an instance of InlineObject5' do
+      expect(@instance).to be_instance_of(Petstore::InlineObject5)
+    end
+  end
+  describe 'test attribute "additional_metadata"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "required_file"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+end

samples/openapi3/client/petstore/ruby/spec/models/inline_object_spec.rb

@@ -0,0 +1,47 @@
+=begin
+#OpenAPI Petstore
+
+#This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+The version of the OpenAPI document: 1.0.0
+
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.1.0-SNAPSHOT
+
+=end
+
+require 'spec_helper'
+require 'json'
+require 'date'
+
+# Unit tests for Petstore::InlineObject
+# Automatically generated by openapi-generator (https://openapi-generator.tech)
+# Please update as you see appropriate
+describe 'InlineObject' do
+  before do
+    # run before each test
+    @instance = Petstore::InlineObject.new
+  end
+
+  after do
+    # run after each test
+  end
+
+  describe 'test an instance of InlineObject' do
+    it 'should create an instance of InlineObject' do
+      expect(@instance).to be_instance_of(Petstore::InlineObject)
+    end
+  end
+  describe 'test attribute "name"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "status"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+end