Add more tests and example

examples/providers/configuration/configuration_ini_init.py

@@ -0,0 +1,25 @@
+"""`Configuration` provider values loading example."""
+
+from dependency_injector import containers, providers
+
+
+class Container(containers.DeclarativeContainer):
+
+    config = providers.Configuration(ini_files=["./config.ini"])
+
+
+if __name__ == "__main__":
+    container = Container()
+
+    assert container.config() == {
+        "aws": {
+            "access_key_id": "KEY",
+            "secret_access_key": "SECRET",
+        },
+    }
+    assert container.config.aws() == {
+        "access_key_id": "KEY",
+        "secret_access_key": "SECRET",
+    }
+    assert container.config.aws.access_key_id() == "KEY"
+    assert container.config.aws.secret_access_key() == "SECRET"

tests/unit/containers/instance/test_load_config_py2_py3.py

@@ -6,21 +6,37 @@ from pytest import fixture
 
 @fixture
 def yaml_config_file(tmp_path):
-    yaml_config_file = str(tmp_path / "config.yml")
-    with open(yaml_config_file, "w") as file:
+    config_file = str(tmp_path / "config.yml")
+    with open(config_file, "w") as file:
         file.write(
             "section1:\n"
             "  value1: yaml-loaded\n"
         )
-    return yaml_config_file
+    return config_file
 
 
-def test_auto_load(yaml_config_file):
+@fixture
+def ini_config_file(tmp_path):
+    config_file = str(tmp_path / "config.ini")
+    with open(config_file, "w") as file:
+        file.write(
+            "[section2]:\n"
+            "value2 = ini-loaded\n"
+        )
+    return config_file
+
+
+
+def test_auto_load(yaml_config_file, ini_config_file):
     class ContainerWithConfig(containers.DeclarativeContainer):
-        config = providers.Configuration(yaml_files=[yaml_config_file])
+        config = providers.Configuration(
+            yaml_files=[yaml_config_file],
+            ini_files=[ini_config_file],
+        )
 
     container = ContainerWithConfig()
     assert container.config.section1.value1() == "yaml-loaded"
+    assert container.config.section2.value2() == "ini-loaded"
 
 
 def test_auto_load_and_overriding(yaml_config_file):