Added test for provider injector

Author: ¨eadwinCode¨

ellar/common/params/resolvers/system_parameters/provider.py

@@ -1,6 +1,7 @@
 import inspect
 import typing as t
 
+from ellar.common.exceptions import ImproperConfiguration
 from ellar.common.interfaces import IExecutionContext
 from ellar.common.types import T
 
@@ -18,14 +19,14 @@ def __call__(
         self.parameter_name = parameter_name
         self.type_annotation = parameter_annotation
         if not self.data and isinstance(self.type_annotation, inspect.Parameter.empty):
-            raise Exception("Inject Type must have a valid type")
+            raise ImproperConfiguration("Inject Type must have a valid type")
 
         if (
             self.data
             and parameter_annotation is not inspect.Parameter.empty
             and parameter_annotation is not self.data
         ):
-            raise Exception(
+            raise ImproperConfiguration(
                 f"Annotation({self.type_annotation}) is not the same as service({self.data})"
             )
 

tests/test_system_parameter_resolvers/__init__.py

@@ -0,0 +1,38 @@
+import inspect
+from unittest.mock import Mock
+
+import pytest
+from ellar.common.exceptions import ImproperConfiguration
+from ellar.common.params.resolvers.system_parameters import ProviderParameterInjector
+from ellar.core import ExecutionContext
+
+
+class InjectableType1:
+    name: str = "Ellar"
+
+
+class InjectableType2:
+    name: str = "Ellar"
+
+
+def test_provider_setup_fails_for_no_service_defined():
+    provider_resolver = ProviderParameterInjector()
+
+    with pytest.raises(ImproperConfiguration):
+        provider_resolver("parameter_name", inspect.Parameter.empty)
+
+
+def test_provider_setup_fails_for_service_mismatch():
+    #
+    provider_resolver = ProviderParameterInjector()
+    provider_resolver.data = InjectableType2
+
+    with pytest.raises(ImproperConfiguration):
+        provider_resolver("parameter_name", InjectableType1)
+
+
+async def test_provider_setup_fails_when_it_has_not_service(anyio_backend):
+    provider_resolver = ProviderParameterInjector()
+
+    with pytest.raises(RuntimeError):
+        await provider_resolver.resolve(Mock(spec=ExecutionContext))