python-experimental adds DecimalSchema (#11282)

* Fixes test

* Adds decimal examples to the pythonExp generator

* Adds isDecimal to CodegenModel, updates python-exp samples

* Fixes decimal types in ObjectModelWIthDecimalProperties and DecimalPayload

* Updates tests

* Decimal feature added to python-exp docs

* Samples and docs regenerated

samples/openapi3/client/petstore/python-experimental/tests_manual/test_any_type_schema.py

@@ -11,6 +11,7 @@
 
 
 import unittest
+from decimal import Decimal
 
 import petstore_api
 from petstore_api.schemas import (
@@ -24,9 +25,9 @@ from petstore_api.schemas import (
     NoneSchema,
     DateSchema,
     DateTimeSchema,
+    DecimalSchema,
     ComposedSchema,
     frozendict,
-    Decimal,
     NoneClass,
     BoolClass
 )
@@ -268,6 +269,31 @@ class TestAnyTypeSchema(unittest.TestCase):
         assert isinstance(m, str)
         assert m == '2020-01-01T00:00:00'
 
+    def testDecimalSchema(self):
+        class Model(ComposedSchema):
+
+            @classmethod
+            @property
+            def _composed_schemas(cls):
+                return {
+                    'allOf': [
+                        AnyTypeSchema,
+                        DecimalSchema,
+                    ],
+                    'oneOf': [
+                    ],
+                    'anyOf': [
+                    ],
+                }
+
+        m = Model('12.34')
+        assert isinstance(m, Model)
+        assert isinstance(m, AnyTypeSchema)
+        assert isinstance(m, DecimalSchema)
+        assert isinstance(m, str)
+        assert m == '12.34'
+        assert m.as_decimal == Decimal('12.34')
+
 
 if __name__ == '__main__':
     unittest.main()

samples/openapi3/client/petstore/python-experimental/tests_manual/test_decimal_payload.py

@@ -0,0 +1,46 @@
+# coding: utf-8
+
+"""
+    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: \" \\  # noqa: E501
+
+    The version of the OpenAPI document: 1.0.0
+    Generated by: https://openapi-generator.tech
+"""
+
+import decimal
+import unittest
+
+import petstore_api
+from petstore_api.schemas import DecimalSchema
+from petstore_api.model.decimal_payload import DecimalPayload
+
+
+class TestDecimalPayload(unittest.TestCase):
+    """DecimalPayload unit test stubs"""
+
+    def test_DecimalPayload(self):
+        """Test DecimalPayload"""
+
+        m = DecimalPayload('12')
+        assert isinstance(m, DecimalPayload)
+        assert isinstance(m, DecimalSchema)
+        assert isinstance(m, str)
+        assert m == '12'
+        assert m.as_decimal == decimal.Decimal('12')
+
+        m = DecimalPayload('12.34')
+        assert isinstance(m, DecimalPayload)
+        assert isinstance(m, DecimalSchema)
+        assert isinstance(m, str)
+        assert m == '12.34'
+        assert m.as_decimal == decimal.Decimal('12.34')
+
+        # passing in a Decimal does not work
+        with self.assertRaises(petstore_api.ApiTypeError):
+            DecimalPayload(decimal.Decimal('12.34'))
+
+
+if __name__ == '__main__':
+    unittest.main()

samples/openapi3/client/petstore/python-experimental/tests_manual/test_money.py

@@ -0,0 +1,34 @@
+# coding: utf-8
+
+"""
+    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: \" \\  # noqa: E501
+
+    The version of the OpenAPI document: 1.0.0
+    Generated by: https://openapi-generator.tech
+"""
+import decimal
+import unittest
+
+from petstore_api.model.money import Money
+
+
+class TestMoney(unittest.TestCase):
+    """Money unit test stubs"""
+
+    def test_Money(self):
+        """Test Money"""
+        price = Money(
+            currency='usd',
+            amount='10.99'
+        )
+        self.assertEqual(price.amount.as_decimal, decimal.Decimal('10.99'))
+        self.assertEqual(
+            price,
+            dict(currency='usd', amount='10.99')
+        )
+
+
+if __name__ == '__main__':
+    unittest.main()