add test case for nullable parent property (#16552)

* add nullable case to spring test spec

* generate samples for changed spring input

* add nullable case to general test spec

* generate samples for changed general input

* generate samples again

* generates samples again

* re-build from new sources, generates samples again

samples/client/petstore/java/webclient-swagger2/src/main/java/org/openapitools/client/api/FakeApi.java

@@ -3,6 +3,7 @@ package org.openapitools.client.api;
 import org.openapitools.client.ApiClient;
 
 import java.math.BigDecimal;
+import org.openapitools.client.model.ChildWithNullable;
 import org.openapitools.client.model.Client;
 import org.openapitools.client.model.EnumClass;
 import org.openapitools.client.model.FakeBigDecimalMap200Response;
@@ -1449,6 +1450,75 @@ public class FakeApi {
     public ResponseSpec testJsonFormDataWithResponseSpec(String param, String param2) throws WebClientResponseException {
         return testJsonFormDataRequestCreation(param, param2);
     }
+    /**
+     * test nullable parent property
+     * 
+     * <p><b>200</b> - successful operation
+     * @param childWithNullable request body
+     * @throws WebClientResponseException if an error occurs while attempting to invoke the API
+     */
+    private ResponseSpec testNullableRequestCreation(ChildWithNullable childWithNullable) throws WebClientResponseException {
+        Object postBody = childWithNullable;
+        // verify the required parameter 'childWithNullable' is set
+        if (childWithNullable == null) {
+            throw new WebClientResponseException("Missing the required parameter 'childWithNullable' when calling testNullable", HttpStatus.BAD_REQUEST.value(), HttpStatus.BAD_REQUEST.getReasonPhrase(), null, null, null);
+        }
+        // create path and map variables
+        final Map<String, Object> pathParams = new HashMap<String, Object>();
+
+        final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<String, String>();
+        final HttpHeaders headerParams = new HttpHeaders();
+        final MultiValueMap<String, String> cookieParams = new LinkedMultiValueMap<String, String>();
+        final MultiValueMap<String, Object> formParams = new LinkedMultiValueMap<String, Object>();
+
+        final String[] localVarAccepts = { };
+        final List<MediaType> localVarAccept = apiClient.selectHeaderAccept(localVarAccepts);
+        final String[] localVarContentTypes = { 
+            "application/json"
+        };
+        final MediaType localVarContentType = apiClient.selectHeaderContentType(localVarContentTypes);
+
+        String[] localVarAuthNames = new String[] {  };
+
+        ParameterizedTypeReference<Void> localVarReturnType = new ParameterizedTypeReference<Void>() {};
+        return apiClient.invokeAPI("/fake/nullable", HttpMethod.POST, pathParams, queryParams, postBody, headerParams, cookieParams, formParams, localVarAccept, localVarContentType, localVarAuthNames, localVarReturnType);
+    }
+
+    /**
+     * test nullable parent property
+     * 
+     * <p><b>200</b> - successful operation
+     * @param childWithNullable request body
+     * @throws WebClientResponseException if an error occurs while attempting to invoke the API
+     */
+    public Mono<Void> testNullable(ChildWithNullable childWithNullable) throws WebClientResponseException {
+        ParameterizedTypeReference<Void> localVarReturnType = new ParameterizedTypeReference<Void>() {};
+        return testNullableRequestCreation(childWithNullable).bodyToMono(localVarReturnType);
+    }
+
+    /**
+     * test nullable parent property
+     * 
+     * <p><b>200</b> - successful operation
+     * @param childWithNullable request body
+     * @throws WebClientResponseException if an error occurs while attempting to invoke the API
+     */
+    public Mono<ResponseEntity<Void>> testNullableWithHttpInfo(ChildWithNullable childWithNullable) throws WebClientResponseException {
+        ParameterizedTypeReference<Void> localVarReturnType = new ParameterizedTypeReference<Void>() {};
+        return testNullableRequestCreation(childWithNullable).toEntity(localVarReturnType);
+    }
+
+    /**
+     * test nullable parent property
+     * 
+     * <p><b>200</b> - successful operation
+     * @param childWithNullable request body
+     * @return ResponseSpec
+     * @throws WebClientResponseException if an error occurs while attempting to invoke the API
+     */
+    public ResponseSpec testNullableWithResponseSpec(ChildWithNullable childWithNullable) throws WebClientResponseException {
+        return testNullableRequestCreation(childWithNullable);
+    }
     /**
      * 
      * To test the collection format in query parameters

samples/client/petstore/java/webclient-swagger2/src/main/java/org/openapitools/client/model/ChildWithNullable.java

@@ -0,0 +1,142 @@
+/*
+ * 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
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.v3.oas.annotations.media.Schema;
+import org.openapitools.client.model.ParentWithNullable;
+import org.openapitools.jackson.nullable.JsonNullable;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+/**
+ * ChildWithNullable
+ */
+@JsonPropertyOrder({
+  ChildWithNullable.JSON_PROPERTY_OTHER_PROPERTY
+})
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+@JsonIgnoreProperties(
+  value = "type", // ignore manually set type, it will be automatically generated by Jackson during serialization
+  allowSetters = true // allows the type to be set during deserialization
+)
+@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "type", visible = true)
+
+public class ChildWithNullable extends ParentWithNullable {
+  public static final String JSON_PROPERTY_OTHER_PROPERTY = "otherProperty";
+  private String otherProperty;
+
+  public ChildWithNullable() {
+
+  }
+
+  public ChildWithNullable otherProperty(String otherProperty) {
+    
+    this.otherProperty = otherProperty;
+    return this;
+  }
+
+   /**
+   * Get otherProperty
+   * @return otherProperty
+  **/
+  @javax.annotation.Nullable
+  @Schema(requiredMode = Schema.RequiredMode.NOT_REQUIRED, description = "")
+  @JsonProperty(JSON_PROPERTY_OTHER_PROPERTY)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public String getOtherProperty() {
+    return otherProperty;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_OTHER_PROPERTY)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setOtherProperty(String otherProperty) {
+    this.otherProperty = otherProperty;
+  }
+
+  @Override
+  public ChildWithNullable type(TypeEnum type) {
+    this.setType(type);
+    return this;
+  }
+
+  @Override
+  public ChildWithNullable nullableProperty(String nullableProperty) {
+    this.setNullableProperty(nullableProperty);
+    return this;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ChildWithNullable childWithNullable = (ChildWithNullable) o;
+    return Objects.equals(this.otherProperty, childWithNullable.otherProperty) &&
+        super.equals(o);
+  }
+
+  private static <T> boolean equalsNullable(JsonNullable<T> a, JsonNullable<T> b) {
+    return a == b || (a != null && b != null && a.isPresent() && b.isPresent() && Objects.deepEquals(a.get(), b.get()));
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(otherProperty, super.hashCode());
+  }
+
+  private static <T> int hashCodeNullable(JsonNullable<T> a) {
+    if (a == null) {
+      return 1;
+    }
+    return a.isPresent() ? Arrays.deepHashCode(new Object[]{a.get()}) : 31;
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ChildWithNullable {\n");
+    sb.append("    ").append(toIndentedString(super.toString())).append("\n");
+    sb.append("    otherProperty: ").append(toIndentedString(otherProperty)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+
+}
+

samples/client/petstore/java/webclient-swagger2/src/main/java/org/openapitools/client/model/ParentWithNullable.java

@@ -0,0 +1,206 @@
+/*
+ * 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
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import java.util.Objects;
+import java.util.Arrays;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.v3.oas.annotations.media.Schema;
+import org.openapitools.jackson.nullable.JsonNullable;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import org.openapitools.jackson.nullable.JsonNullable;
+import java.util.NoSuchElementException;
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+
+/**
+ * ParentWithNullable
+ */
+@JsonPropertyOrder({
+  ParentWithNullable.JSON_PROPERTY_TYPE,
+  ParentWithNullable.JSON_PROPERTY_NULLABLE_PROPERTY
+})
+@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
+@JsonIgnoreProperties(
+  value = "type", // ignore manually set type, it will be automatically generated by Jackson during serialization
+  allowSetters = true // allows the type to be set during deserialization
+)
+@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "type", visible = true)
+@JsonSubTypes({
+  @JsonSubTypes.Type(value = ChildWithNullable.class, name = "ChildWithNullable"),
+})
+
+public class ParentWithNullable {
+  /**
+   * Gets or Sets type
+   */
+  public enum TypeEnum {
+    CHILDWITHNULLABLE("ChildWithNullable");
+
+    private String value;
+
+    TypeEnum(String value) {
+      this.value = value;
+    }
+
+    @JsonValue
+    public String getValue() {
+      return value;
+    }
+
+    @Override
+    public String toString() {
+      return String.valueOf(value);
+    }
+
+    @JsonCreator
+    public static TypeEnum fromValue(String value) {
+      for (TypeEnum b : TypeEnum.values()) {
+        if (b.value.equals(value)) {
+          return b;
+        }
+      }
+      throw new IllegalArgumentException("Unexpected value '" + value + "'");
+    }
+  }
+
+  public static final String JSON_PROPERTY_TYPE = "type";
+  protected TypeEnum type;
+
+  public static final String JSON_PROPERTY_NULLABLE_PROPERTY = "nullableProperty";
+  private JsonNullable<String> nullableProperty = JsonNullable.<String>undefined();
+
+  public ParentWithNullable() {
+  }
+
+  public ParentWithNullable type(TypeEnum type) {
+    
+    this.type = type;
+    return this;
+  }
+
+   /**
+   * Get type
+   * @return type
+  **/
+  @javax.annotation.Nullable
+  @Schema(requiredMode = Schema.RequiredMode.NOT_REQUIRED, description = "")
+  @JsonProperty(JSON_PROPERTY_TYPE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public TypeEnum getType() {
+    return type;
+  }
+
+
+  @JsonProperty(JSON_PROPERTY_TYPE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setType(TypeEnum type) {
+    this.type = type;
+  }
+
+
+  public ParentWithNullable nullableProperty(String nullableProperty) {
+    this.nullableProperty = JsonNullable.<String>of(nullableProperty);
+    
+    return this;
+  }
+
+   /**
+   * Get nullableProperty
+   * @return nullableProperty
+  **/
+  @javax.annotation.Nullable
+  @Schema(requiredMode = Schema.RequiredMode.NOT_REQUIRED, description = "")
+  @JsonIgnore
+
+  public String getNullableProperty() {
+        return nullableProperty.orElse(null);
+  }
+
+  @JsonProperty(JSON_PROPERTY_NULLABLE_PROPERTY)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+
+  public JsonNullable<String> getNullableProperty_JsonNullable() {
+    return nullableProperty;
+  }
+  
+  @JsonProperty(JSON_PROPERTY_NULLABLE_PROPERTY)
+  public void setNullableProperty_JsonNullable(JsonNullable<String> nullableProperty) {
+    this.nullableProperty = nullableProperty;
+  }
+
+  public void setNullableProperty(String nullableProperty) {
+    this.nullableProperty = JsonNullable.<String>of(nullableProperty);
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ParentWithNullable parentWithNullable = (ParentWithNullable) o;
+    return Objects.equals(this.type, parentWithNullable.type) &&
+        equalsNullable(this.nullableProperty, parentWithNullable.nullableProperty);
+  }
+
+  private static <T> boolean equalsNullable(JsonNullable<T> a, JsonNullable<T> b) {
+    return a == b || (a != null && b != null && a.isPresent() && b.isPresent() && Objects.deepEquals(a.get(), b.get()));
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(type, hashCodeNullable(nullableProperty));
+  }
+
+  private static <T> int hashCodeNullable(JsonNullable<T> a) {
+    if (a == null) {
+      return 1;
+    }
+    return a.isPresent() ? Arrays.deepHashCode(new Object[]{a.get()}) : 31;
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("class ParentWithNullable {\n");
+    sb.append("    type: ").append(toIndentedString(type)).append("\n");
+    sb.append("    nullableProperty: ").append(toIndentedString(nullableProperty)).append("\n");
+    sb.append("}");
+    return sb.toString();
+  }
+
+  /**
+   * Convert the given object to string with each line indented by 4 spaces
+   * (except the first line).
+   */
+  private String toIndentedString(Object o) {
+    if (o == null) {
+      return "null";
+    }
+    return o.toString().replace("\n", "\n    ");
+  }
+
+}
+

samples/client/petstore/java/webclient-swagger2/src/test/java/org/openapitools/client/model/ChildWithNullableTest.java

@@ -0,0 +1,69 @@
+/*
+ * 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
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.v3.oas.annotations.media.Schema;
+import org.openapitools.client.model.ParentWithNullable;
+import org.openapitools.jackson.nullable.JsonNullable;
+import org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+/**
+ * Model tests for ChildWithNullable
+ */
+public class ChildWithNullableTest {
+    private final ChildWithNullable model = new ChildWithNullable();
+
+    /**
+     * Model tests for ChildWithNullable
+     */
+    @Test
+    public void testChildWithNullable() {
+        // TODO: test ChildWithNullable
+    }
+
+    /**
+     * Test the property 'type'
+     */
+    @Test
+    public void typeTest() {
+        // TODO: test type
+    }
+
+    /**
+     * Test the property 'nullableProperty'
+     */
+    @Test
+    public void nullablePropertyTest() {
+        // TODO: test nullableProperty
+    }
+
+    /**
+     * Test the property 'otherProperty'
+     */
+    @Test
+    public void otherPropertyTest() {
+        // TODO: test otherProperty
+    }
+
+}

samples/client/petstore/java/webclient-swagger2/src/test/java/org/openapitools/client/model/ParentWithNullableTest.java

@@ -0,0 +1,63 @@
+/*
+ * 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
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+package org.openapitools.client.model;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.fasterxml.jackson.annotation.JsonValue;
+import io.swagger.v3.oas.annotations.media.Schema;
+import org.openapitools.jackson.nullable.JsonNullable;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import org.openapitools.jackson.nullable.JsonNullable;
+import java.util.NoSuchElementException;
+import org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Test;
+
+/**
+ * Model tests for ParentWithNullable
+ */
+public class ParentWithNullableTest {
+    private final ParentWithNullable model = new ParentWithNullable();
+
+    /**
+     * Model tests for ParentWithNullable
+     */
+    @Test
+    public void testParentWithNullable() {
+        // TODO: test ParentWithNullable
+    }
+
+    /**
+     * Test the property 'type'
+     */
+    @Test
+    public void typeTest() {
+        // TODO: test type
+    }
+
+    /**
+     * Test the property 'nullableProperty'
+     */
+    @Test
+    public void nullablePropertyTest() {
+        // TODO: test nullableProperty
+    }
+
+}