Adding upstream version 4.6.0+dfsg.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tests/providers/test_base_provider.py

@@ -0,0 +1,20 @@
+from __future__ import annotations
+
+import pytest
+
+from commitizen.config.base_config import BaseConfig
+from commitizen.exceptions import VersionProviderUnknown
+from commitizen.providers import get_provider
+from commitizen.providers.commitizen_provider import CommitizenProvider
+
+
+def test_default_version_provider_is_commitizen_config(config: BaseConfig):
+    provider = get_provider(config)
+
+    assert isinstance(provider, CommitizenProvider)
+
+
+def test_raise_for_unknown_provider(config: BaseConfig):
+    config.settings["version_provider"] = "unknown"
+    with pytest.raises(VersionProviderUnknown):
+        get_provider(config)