Add tests for MetaWarning class

Signed-off-by: John Pennycook <john.pennycook@intel.com>

Author: Pennycook

tests/cli/test_meta_warning.py

@@ -0,0 +1,68 @@
+# Copyright (C) 2019-2024 Intel Corporation
+# SPDX-License-Identifier: BSD-3-Clause
+
+import logging
+import re
+import unittest
+
+from codebasin.cli import MetaWarning
+
+
+class TestMetaWarning(unittest.TestCase):
+    """
+    Test MetaWarning class.
+    """
+
+    def test_constructor(self):
+        """Check constructor arguments"""
+        mw = MetaWarning("regex", "msg")
+        self.assertTrue(mw.regex, re.compile("regex"))
+        self.assertTrue(mw.msg, "msg")
+        self.assertEqual(mw._count, 0)
+
+    def test_inspect(self):
+        """Check inspect matches records correctly"""
+        mw = MetaWarning("test[0-9]", "Testing")
+
+        record = logging.makeLogRecord(
+            {
+                "msg": "test1",
+                "levelname": "WARNING",
+            },
+        )
+        self.assertTrue(mw.inspect(record))
+        self.assertEqual(mw._count, 1)
+
+        record = logging.makeLogRecord(
+            {
+                "msg": "testA",
+                "levelname": "WARNING",
+            },
+        )
+        self.assertFalse(mw.inspect(record))
+        self.assertEqual(mw._count, 1)
+
+    def test_warn(self):
+        """Check warn produces expected logging messages"""
+        logging.disable(logging.NOTSET)
+        logger = logging.getLogger("codebasin")
+
+        mw = MetaWarning("test[0-9]", "Testing {}")
+        with self.assertNoLogs(logger):
+            mw.warn(logger)
+
+        record = logging.makeLogRecord(
+            {
+                "msg": "test1",
+                "levelno": logging.WARNING,
+            },
+        )
+        mw.inspect(record)
+        with self.assertLogs(logger, level="WARNING") as cm:
+            mw.warn(logger)
+        self.assertEqual(cm.output, ["WARNING:codebasin:Testing 1"])
+        logging.disable()
+
+
+if __name__ == "__main__":
+    unittest.main()