Add test: test for clearing cache

backend/tests/apps/common/management/commands/clear_cache_test.py

@@ -0,0 +1,71 @@
+import pytest
+from django.core.cache import cache
+from django.core.management import call_command
+from django.test import override_settings
+
+# cache configuration
+TEST_CACHE_SETTINGS = {
+    "CACHES": {
+        "default": {
+            "BACKEND": "django.core.cache.backends.locmem.LocMemCache",
+            "LOCATION": "test-cache",
+        }
+    }
+}
+
+
+@pytest.fixture
+@override_settings(**TEST_CACHE_SETTINGS)
+def setup_cache():
+    cache.clear()
+    yield
+    cache.clear()
+
+
+def assert_cache_keys_exist(keys_values):
+    for key, expected_value in keys_values.items():
+        assert cache.get(key) == expected_value
+
+
+def assert_cache_keys_none(keys):
+    for key in keys:
+        assert cache.get(key) is None
+
+
+@override_settings(**TEST_CACHE_SETTINGS)
+def test_clear_cache_command():
+    test_data = {
+        "test_key_1": "test_value_1",
+        "test_key_2": "test_value_2",
+        "test_key_3": {"nested": "data"},
+    }
+
+    for key, value in test_data.items():
+        cache.set(key, value)
+
+    assert_cache_keys_exist(test_data)
+
+    call_command("clear_cache")
+
+    assert_cache_keys_none(test_data.keys())
+
+
+@override_settings(**TEST_CACHE_SETTINGS)
+def test_clear_cache_command_empty_cache():
+    cache.clear()
+    assert cache.get("any_key") is None
+
+    call_command("clear_cache")
+
+    assert cache.get("any_key") is None
+
+
+@override_settings(**TEST_CACHE_SETTINGS)
+def test_clear_cache_command_with_timeout_keys():
+    cache.set("timeout_key", "timeout_value", timeout=3600)
+
+    assert cache.get("timeout_key") == "timeout_value"
+
+    call_command("clear_cache")
+
+    assert cache.get("timeout_key") is None