Move test files

tests/database/test_create_config.py

@@ -0,0 +1,49 @@
+import pytest
+from confz import BaseConfig, FileSource
+
+from pydase_service_base.database.create_config import (
+    NoConfigSourceError,
+    create_config,
+)
+
+
+class DummyConfig(BaseConfig):
+    foo: str
+    CONFIG_SOURCES = None
+
+
+def test_create_config_with_config_folder_and_file(tmp_path):
+    config_folder = tmp_path / "my_config"
+    config_folder.mkdir()
+    config_file = config_folder / "dummy.yaml"
+    config_file.write_text("foo: bar\n")
+
+    # Should load config from the specified folder and file
+    config = create_config(
+        DummyConfig, config_folder=config_folder, config_file="dummy.yaml"
+    )
+    assert config.foo == "bar"
+
+
+def test_create_config_with_config_class_sources(tmp_path):
+    # DummyConfigWithSource has CONFIG_SOURCES set
+    class DummyConfigWithSource(BaseConfig):
+        foo: str
+        CONFIG_SOURCES = FileSource(tmp_path / "dummy.yaml")
+
+    config_file = tmp_path / "dummy.yaml"
+    config_file.write_text("foo: qux\n")
+
+    config = create_config(DummyConfigWithSource, config_file="dummy.yaml")
+    assert config.foo == "qux"
+
+
+def test_create_config_raises_when_no_config_source(tmp_path):
+    # DummyConfigNoSource has CONFIG_SOURCES = None and no config_folder provided
+    class DummyConfigNoSource(BaseConfig):
+        foo: str
+        CONFIG_SOURCES = None
+
+    with pytest.raises(NoConfigSourceError) as excinfo:
+        create_config(DummyConfigNoSource, config_file="dummy.yaml")
+    assert "No 'database_config' folder found" in str(excinfo.value)