Add init implementation and tests

src/dependency_injector/providers.pxd

@@ -132,8 +132,9 @@ cdef class Configuration(Object):
     cdef str __name
     cdef bint __strict
     cdef dict __children
-    cdef list __yaml_files
     cdef list __ini_files
+    cdef list __yaml_files
+    cdef list __json_files
     cdef list __pydantic_settings
     cdef object __weakref__
 

src/dependency_injector/providers.pyi

@@ -238,8 +238,9 @@ class Configuration(Object[Any]):
             default: Optional[Any] = None,
             *,
             strict: bool = False,
-            yaml_files: Optional[_Iterable[Union[Path, str]]] = None,
             ini_files: Optional[_Iterable[Union[Path, str]]] = None,
+            yaml_files: Optional[_Iterable[Union[Path, str]]] = None,
+            json_files: Optional[_Iterable[Union[Path, str]]] = None,
             pydantic_settings: Optional[_Iterable[PydanticSettings]] = None,
     ) -> None: ...
     def __enter__(self) -> Configuration : ...
@@ -259,11 +260,14 @@ class Configuration(Object[Any]):
     def get_children(self) -> _Dict[str, ConfigurationOption]: ...
     def set_children(self, children: _Dict[str, ConfigurationOption]) -> Configuration: ...
 
+    def get_ini_files(self) -> _List[Union[Path, str]]: ...
+    def set_ini_files(self, files: _Iterable[Union[Path, str]]) -> Configuration: ...
+
     def get_yaml_files(self) -> _List[Union[Path, str]]: ...
     def set_yaml_files(self, files: _Iterable[Union[Path, str]]) -> Configuration: ...
 
-    def get_ini_files(self) -> _List[Union[Path, str]]: ...
-    def set_ini_files(self, files: _Iterable[Union[Path, str]]) -> Configuration: ...
+    def get_json_files(self) -> _List[Union[Path, str]]: ...
+    def set_json_files(self, files: _Iterable[Union[Path, str]]) -> Configuration: ...
 
     def get_pydantic_settings(self) -> _List[PydanticSettings]: ...
     def set_pydantic_settings(self, settings: _Iterable[PydanticSettings]) -> Configuration: ...

src/dependency_injector/providers.pyx

@@ -1925,24 +1925,29 @@ cdef class Configuration(Object):
 
     DEFAULT_NAME = "config"
 
-    def __init__(self, name=DEFAULT_NAME, default=None, strict=False, yaml_files=None, ini_files=None, pydantic_settings=None):
+    def __init__(self, name=DEFAULT_NAME, default=None, strict=False, ini_files=None, yaml_files=None, json_files=None, pydantic_settings=None):
         self.__name = name
         self.__strict = strict
         self.__children = {}
-        self.__yaml_files = []
         self.__ini_files = []
+        self.__yaml_files = []
+        self.__json_files = []
         self.__pydantic_settings = []
 
         super().__init__(provides={})
         self.set_default(default)
 
+        if ini_files is None:
+            ini_files = []
+        self.set_ini_files(ini_files)
+
         if yaml_files is None:
             yaml_files = []
         self.set_yaml_files(yaml_files)
 
-        if ini_files is None:
-            ini_files = []
-        self.set_ini_files(ini_files)
+        if json_files is None:
+            json_files = []
+        self.set_json_files(json_files)
 
         if pydantic_settings is None:
             pydantic_settings = []
@@ -1958,8 +1963,9 @@ cdef class Configuration(Object):
         copied.set_default(self.get_default())
         copied.set_strict(self.get_strict())
         copied.set_children(deepcopy(self.get_children(), memo))
-        copied.set_yaml_files(self.get_yaml_files())
         copied.set_ini_files(self.get_ini_files())
+        copied.set_yaml_files(self.get_yaml_files())
+        copied.set_json_files(self.get_json_files())
         copied.set_pydantic_settings(self.get_pydantic_settings())
 
         self._copy_overridings(copied, memo)
@@ -2052,6 +2058,15 @@ cdef class Configuration(Object):
         self.__yaml_files = list(files)
         return self
 
+    def get_json_files(self):
+        """Return list of JSON files."""
+        return list(self.__json_files)
+
+    def set_json_files(self, files):
+        """Set list of JSON files."""
+        self.__json_files = list(files)
+        return self
+
     def get_pydantic_settings(self):
         """Return list of Pydantic settings."""
         return list(self.__pydantic_settings)
@@ -2078,11 +2093,14 @@ cdef class Configuration(Object):
         :param envs_required: When True, raises an error on undefined environment variable.
         :type envs_required: bool
         """
+        for file in self.get_ini_files():
+            self.from_ini(file, required=required, envs_required=envs_required)
+
         for file in self.get_yaml_files():
             self.from_yaml(file, required=required, envs_required=envs_required)
 
-        for file in self.get_ini_files():
-            self.from_ini(file, required=required, envs_required=envs_required)
+        for file in self.get_json_files():
+            self.from_json(file, required=required, envs_required=envs_required)
 
         for settings in self.get_pydantic_settings():
             self.from_pydantic(settings, required=required)

tests/typing/configuration.py

@@ -1,5 +1,7 @@
 from pathlib import Path
+
 from dependency_injector import providers
+from pydantic import BaseSettings as PydanticSettings
 
 
 # Test 1: to check the getattr
@@ -8,7 +10,19 @@ provider1 = providers.Factory(dict, a=config1.a)
 
 # Test 2: to check the from_*() method
 config2 = providers.Configuration()
+config2_init_args = providers.Configuration(
+    name="config",
+    strict=True,
+    default={},
+    ini_files=["config.ini", Path("config.ini")],
+    yaml_files=["config.yml", Path("config.yml")],
+    json_files=["config.json", Path("config.json")],
+    pydantic_settings=[PydanticSettings()],
+)
+
 config2.from_dict({})
+config2.from_value({})
+
 config2.from_ini("config.ini")
 config2.from_ini(Path("config.ini"))
 
@@ -23,6 +37,8 @@ config2.from_env("ENV", as_=int, default=123)
 config2.from_env("ENV", as_=float, required=True)
 config2.from_env("ENV", as_=lambda env: str(env))
 
+config2.from_pydantic(PydanticSettings())
+
 # Test 3: to check as_*() methods
 config3 = providers.Configuration()
 int3: providers.Callable[int] = config3.option.as_int()

tests/unit/providers/configuration/test_ini_files_in_init_py2_py3.py

@@ -47,6 +47,11 @@ def test_set_files(config):
     assert config.get_ini_files() == ["file1.ini", "file2.ini"]
 
 
+def test_copy(config, ini_config_file_1, ini_config_file_2):
+    config_copy = providers.deepcopy(config)
+    assert config_copy.get_ini_files() == [ini_config_file_1, ini_config_file_2]
+
+
 def test_file_does_not_exist(config):
     config.set_ini_files(["./does_not_exist.ini"])
     config.load()

tests/unit/providers/configuration/test_json_files_in_init_py2_py3.py

@@ -0,0 +1,114 @@
+"""Configuration(json_files=[...]) tests."""
+
+import json
+
+from dependency_injector import providers
+from pytest import fixture, mark, raises
+
+
+@fixture
+def config(config_type, json_config_file_1, json_config_file_2):
+    if config_type == "strict":
+        return providers.Configuration(strict=True)
+    elif config_type == "default":
+        return providers.Configuration(json_files=[json_config_file_1, json_config_file_2])
+    else:
+        raise ValueError("Undefined config type \"{0}\"".format(config_type))
+
+
+def test_load(config):
+    config.load()
+
+    assert config() == {
+        "section1": {
+            "value1": 11,
+            "value11": 11,
+        },
+        "section2": {
+            "value2": 2,
+        },
+        "section3": {
+            "value3": 3,
+        },
+    }
+    assert config.section1() == {"value1": 11, "value11": 11}
+    assert config.section1.value1() == 11
+    assert config.section1.value11() == 11
+    assert config.section2() == {"value2": 2}
+    assert config.section2.value2() == 2
+    assert config.section3() == {"value3": 3}
+    assert config.section3.value3() == 3
+
+
+def test_get_files(config, json_config_file_1, json_config_file_2):
+    assert config.get_json_files() == [json_config_file_1, json_config_file_2]
+
+
+def test_set_files(config):
+    config.set_json_files(["file1.json", "file2.json"])
+    assert config.get_json_files() == ["file1.json", "file2.json"]
+
+
+def test_copy(config, json_config_file_1, json_config_file_2):
+    config_copy = providers.deepcopy(config)
+    assert config_copy.get_json_files() == [json_config_file_1, json_config_file_2]
+
+
+def test_file_does_not_exist(config):
+    config.set_json_files(["./does_not_exist.json"])
+    config.load()
+    assert config() == {}
+
+
+@mark.parametrize("config_type", ["strict"])
+def test_file_does_not_exist_strict_mode(config):
+    config.set_json_files(["./does_not_exist.json"])
+    with raises(IOError):
+        config.load()
+    assert config() == {}
+
+
+def test_required_file_does_not_exist(config):
+    config.set_json_files(["./does_not_exist.json"])
+    with raises(IOError):
+        config.load(required=True)
+
+
+@mark.parametrize("config_type", ["strict"])
+def test_not_required_file_does_not_exist_strict_mode(config):
+    config.set_json_files(["./does_not_exist.json"])
+    config.load(required=False)
+    assert config() == {}
+
+
+def test_missing_envs_required(config, json_config_file_3):
+    with open(json_config_file_3, "w") as file:
+        file.write(
+            json.dumps(
+                {
+                    "section": {
+                        "undefined": "${UNDEFINED}",
+                    },
+                },
+            ),
+        )
+    config.set_json_files([json_config_file_3])
+    with raises(ValueError, match="Missing required environment variable \"UNDEFINED\""):
+        config.load(envs_required=True)
+
+
+@mark.parametrize("config_type", ["strict"])
+def test_missing_envs_not_required_in_strict_mode(config, json_config_file_3):
+    with open(json_config_file_3, "w") as file:
+        file.write(
+            json.dumps(
+                {
+                    "section": {
+                        "undefined": "${UNDEFINED}",
+                    },
+                },
+            ),
+        )
+    config.set_json_files([json_config_file_3])
+    config.load(envs_required=False)
+    assert config.section.undefined() == ""

tests/unit/providers/configuration/test_pydantic_settings_in_init_py36.py

@@ -80,6 +80,11 @@ def test_get_pydantic_settings(config, pydantic_settings_1, pydantic_settings_2)
     assert config.get_pydantic_settings() == [pydantic_settings_1, pydantic_settings_2]
 
 
+def test_copy(config, pydantic_settings_1, pydantic_settings_2):
+    config_copy = providers.deepcopy(config)
+    assert config_copy.get_pydantic_settings() == [pydantic_settings_1, pydantic_settings_2]
+
+
 def test_set_pydantic_settings(config):
     class Settings3(pydantic.BaseSettings):
         ...

tests/unit/providers/configuration/test_yaml_files_in_init_py2_py3.py

@@ -47,6 +47,11 @@ def test_set_files(config):
     assert config.get_yaml_files() == ["file1.yml", "file2.yml"]
 
 
+def test_copy(config, yaml_config_file_1, yaml_config_file_2):
+    config_copy = providers.deepcopy(config)
+    assert config_copy.get_yaml_files() == [yaml_config_file_1, yaml_config_file_2]
+
+
 def test_file_does_not_exist(config):
     config.set_yaml_files(["./does_not_exist.yml"])
     config.load()