Add tests to pydantic schema and module_loading

Makefile

@@ -42,6 +42,7 @@ cov: ## Run tests and coverage only for specific ones
 	ESMERALD_SETTINGS_MODULE='tests.settings.TestSettings' coverage report --show-missing
 	ESMERALD_SETTINGS_MODULE='tests.settings.TestSettings' coverage html
 
+
 .PHONY: requirements
 requirements: ## Install requirements for development
 	pip install -e .[dev,test,doc,templates,jwt,encoders,schedulers,ipython,ptpython]

esmerald/utils/pydantic/schema.py

@@ -1,10 +1,9 @@
 from decimal import Decimal
-from typing import TYPE_CHECKING, Any, TypeVar, cast
+from typing import Any, TypeVar, cast
 
-T = TypeVar("T", int, float, Decimal)
+from pydantic.fields import FieldInfo
 
-if TYPE_CHECKING:
-    from pydantic.fields import FieldInfo
+T = TypeVar("T", int, float, Decimal)
 
 
 def is_field_optional(field: "FieldInfo") -> bool:

tests/utils/test_module_loading.py

@@ -0,0 +1,26 @@
+import pytest
+
+from esmerald import EsmeraldAPISettings
+from esmerald.utils.module_loading import import_string
+
+
+def test_import_error_module_loading():
+    path = "tests"
+
+    with pytest.raises(ImportError):
+        import_string(path)
+
+
+def test_attribute_error_module_loading():
+    path = "tests.settings.TestSetting"
+
+    with pytest.raises(ImportError):
+        import_string(path)
+
+
+def test_imports_successfully():
+    path = "tests.settings.TestSettings"
+
+    settings = import_string(path)
+
+    assert issubclass(settings, EsmeraldAPISettings)

tests/utils/test_pydantic_schema.py

@@ -0,0 +1,19 @@
+from typing import Any
+
+import pytest
+
+from esmerald.params import Param
+from esmerald.utils.pydantic.schema import is_any_type, is_field_optional
+
+
+def test_is_any_type():
+    field = Param(annotation=Any)
+
+    assert is_any_type(field)
+
+
+@pytest.mark.parametrize("allow_none,return_type", [(True, False), (False, False)])
+def test_is_field_optional(allow_none, return_type):
+    field = Param(allow_none=allow_none)
+
+    assert is_field_optional(field) == return_type