Update config (#1903)

* New aproach for uploading sanic app config.

* Update config.rst

Co-authored-by: tigerthelion <bjt.thompson@gmail.com>
Co-authored-by: Adam Hopkins <admhpkns@gmail.com>

tests/static/app_test_config.py

@@ -0,0 +1 @@
+TEST_SETTING_VALUE = 1

tests/test_load_module_from_file_location.py

@@ -0,0 +1,35 @@
+from pathlib import Path
+from types import ModuleType
+
+import pytest
+
+from sanic.exceptions import LoadFileException
+from sanic.utils import load_module_from_file_location
+
+
+@pytest.fixture
+def loaded_module_from_file_location():
+    return load_module_from_file_location(
+        str(Path(__file__).parent / "static/app_test_config.py")
+    )
+
+
+@pytest.mark.dependency(name="test_load_module_from_file_location")
+def test_load_module_from_file_location(loaded_module_from_file_location):
+    assert isinstance(loaded_module_from_file_location, ModuleType)
+
+
+@pytest.mark.dependency(depends=["test_load_module_from_file_location"])
+def test_loaded_module_from_file_location_name(
+    loaded_module_from_file_location,
+):
+    assert loaded_module_from_file_location.__name__ == "app_test_config"
+
+
+def test_load_module_from_file_location_with_non_existing_env_variable():
+    with pytest.raises(
+        LoadFileException,
+        match="The following environment variables are not set: MuuMilk",
+    ):
+
+        load_module_from_file_location("${MuuMilk}")

tests/test_update_config.py

@@ -0,0 +1,36 @@
+from pathlib import Path
+
+import pytest
+
+
+_test_setting_as_dict = {"TEST_SETTING_VALUE": 1}
+_test_setting_as_class = type("C", (), {"TEST_SETTING_VALUE": 1})
+_test_setting_as_module = str(
+    Path(__file__).parent / "static/app_test_config.py"
+)
+
+
+@pytest.mark.parametrize(
+    "conf_object",
+    [
+        _test_setting_as_dict,
+        _test_setting_as_class,
+        pytest.param(
+            _test_setting_as_module,
+            marks=pytest.mark.dependency(
+                depends=["test_load_module_from_file_location"],
+                scope="session",
+            ),
+        ),
+    ],
+    ids=["from_dict", "from_class", "from_file"],
+)
+def test_update(app, conf_object):
+    app.update_config(conf_object)
+    assert app.config["TEST_SETTING_VALUE"] == 1
+
+
+def test_update_from_lowercase_key(app):
+    d = {"test_setting_value": 1}
+    app.update_config(d)
+    assert "test_setting_value" not in app.config