chore: import upstream snapshot with attribution

tests/run_test.py

@@ -0,0 +1,56 @@
+#!/usr/bin/env python
+
+import argparse
+import os
+import sys
+import unittest
+from fnmatch import fnmatch
+
+
+PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+if PROJECT_ROOT not in sys.path:
+    sys.path.insert(0, PROJECT_ROOT)
+
+
+def gather_test_cases(test_dir, pattern, list_tests):
+    case_list = []
+    for dirpath, dirnames, filenames in os.walk(test_dir):
+        for file in filenames:
+            if fnmatch(file, pattern):
+                case_list.append(file)
+
+    test_suite = unittest.TestSuite()
+
+    for case in case_list:
+        test_case = unittest.defaultTestLoader.discover(start_dir=test_dir, pattern=case)
+        test_suite.addTest(test_case)
+        if hasattr(test_case, "__iter__"):
+            for subcase in test_case:
+                if list_tests:
+                    print(subcase)
+        else:
+            if list_tests:
+                print(test_case)
+    return test_suite
+
+
+def main(args):
+    runner = unittest.TextTestRunner()
+    test_suite = gather_test_cases(os.path.abspath(args.test_dir), args.pattern, args.list_tests)
+    if not args.list_tests:
+        result = runner.run(test_suite)
+        if len(result.failures) > 0:
+            sys.exit(len(result.failures))
+        if len(result.errors) > 0:
+            sys.exit(len(result.errors))
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser("test runner")
+    parser.add_argument("--list_tests", action="store_true", help="list all tests")
+    parser.add_argument("--pattern", default="test_*.py", help="test file pattern")
+    parser.add_argument("--test_dir", default="tests", help="directory to be tested")
+    parser.add_argument("--disable_profile", action="store_true", help="disable profiling")
+    args = parser.parse_args()
+    print(f"working dir: {os.getcwd()}")
+    main(args)