version with pydantic inheritance passing all the tests

tests/test_model_definition.py

@@ -0,0 +1,160 @@
+import datetime
+import decimal
+
+import pydantic
+import pytest
+import sqlalchemy
+
+import ormar.fields as fields
+from ormar.exceptions import ModelDefinitionError
+from ormar.models import Model
+
+metadata = sqlalchemy.MetaData()
+
+
+class ExampleModel(Model):
+    class Meta:
+        tablename = "example"
+        metadata = metadata
+
+    test: fields.Integer(primary_key=True)
+    test_string: fields.String(max_length=250)
+    test_text: fields.Text(default="")
+    test_bool: fields.Boolean(nullable=False)
+    test_float: fields.Float() = None
+    test_datetime: fields.DateTime(default=datetime.datetime.now)
+    test_date: fields.Date(default=datetime.date.today)
+    test_time: fields.Time(default=datetime.time)
+    test_json: fields.JSON(default={})
+    test_bigint: fields.BigInteger(default=0)
+    test_decimal: fields.Decimal(scale=10, precision=2)
+
+
+fields_to_check = [
+    "test",
+    "test_text",
+    "test_string",
+    "test_datetime",
+    "test_date",
+    "test_text",
+    "test_float",
+    "test_bigint",
+    "test_json",
+]
+
+
+class ExampleModel2(Model):
+    class Meta:
+        tablename = "example2"
+        metadata = metadata
+
+    test: fields.Integer(primary_key=True)
+    test_string: fields.String(max_length=250)
+
+
+@pytest.fixture()
+def example():
+    return ExampleModel(pk=1, test_string="test", test_bool=True, test_decimal=decimal.Decimal(3.5))
+
+
+def test_not_nullable_field_is_required():
+    with pytest.raises(pydantic.error_wrappers.ValidationError):
+        ExampleModel(test=1, test_string="test")
+
+
+def test_model_attribute_access(example):
+    assert example.test == 1
+    assert example.test_string == "test"
+    assert example.test_datetime.year == datetime.datetime.now().year
+    assert example.test_date == datetime.date.today()
+    assert example.test_text == ""
+    assert example.test_float is None
+    assert example.test_bigint == 0
+    assert example.test_json == {}
+
+    example.test = 12
+    assert example.test == 12
+
+def test_non_existing_attr(example):
+	with pytest.raises(ValueError):
+		example.new_attr=12
+
+
+def test_primary_key_access_and_setting(example):
+    assert example.pk == 1
+    example.pk = 2
+
+    assert example.pk == 2
+    assert example.test == 2
+
+
+def test_pydantic_model_is_created(example):
+    assert issubclass(example.__class__, pydantic.BaseModel)
+    assert all([field in example.__fields__ for field in fields_to_check])
+    assert example.test == 1
+
+
+def test_sqlalchemy_table_is_created(example):
+    assert issubclass(example.Meta.table.__class__, sqlalchemy.Table)
+    assert all([field in example.Meta.table.columns for field in fields_to_check])
+
+
+def test_no_pk_in_model_definition():
+    with pytest.raises(ModelDefinitionError):
+        class ExampleModel2(Model):
+            class Meta:
+                tablename = "example3"
+                metadata = metadata
+
+            test_string: fields.String(max_length=250)
+
+
+def test_two_pks_in_model_definition():
+    with pytest.raises(ModelDefinitionError):
+        class ExampleModel2(Model):
+            class Meta:
+                tablename = "example3"
+                metadata = metadata
+
+            id: fields.Integer(primary_key=True)
+            test_string: fields.String(max_length=250, primary_key=True)
+
+
+def test_setting_pk_column_as_pydantic_only_in_model_definition():
+    with pytest.raises(ModelDefinitionError):
+        class ExampleModel2(Model):
+            class Meta:
+                tablename = "example4"
+                metadata = metadata
+
+            test: fields.Integer(primary_key=True, pydantic_only=True)
+
+
+def test_decimal_error_in_model_definition():
+    with pytest.raises(ModelDefinitionError):
+        class ExampleModel2(Model):
+            class Meta:
+                tablename = "example5"
+                metadata = metadata
+
+            test: fields.Decimal(primary_key=True)
+
+
+def test_string_error_in_model_definition():
+    with pytest.raises(ModelDefinitionError):
+        class ExampleModel2(Model):
+            class Meta:
+                tablename = "example6"
+                metadata = metadata
+
+            test: fields.String(primary_key=True)
+
+
+def test_json_conversion_in_model():
+    with pytest.raises(pydantic.ValidationError):
+        ExampleModel(
+            test_json=datetime.datetime.now(),
+            test=1,
+            test_string="test",
+            test_bool=True,
+        )