scan source directory instead of using pytest

romanisim/tests/test_dms_requirements.py

@@ -1,20 +1,34 @@
 import json
+import re
 from pathlib import Path
 
-TEST_REQUIREMENTS_FILENAME = Path(__file__).parent / "dms_requirement_tests.json"
+TEST_DIRECTORY = Path(__file__).parent.parent
+TEST_REQUIREMENTS_FILENAME = TEST_DIRECTORY / "dms_requirement_tests.json"
 
 
-def test_requirements(all_test_names):
+def test_requirements():
     test_requirements_filename = TEST_REQUIREMENTS_FILENAME.expanduser().absolute()
+    test_directory = TEST_DIRECTORY.expanduser().absolute()
 
     with open(test_requirements_filename) as test_requirements_file:
         requirements = json.load(test_requirements_file)
 
-    required_test_names = {
+    required_tests = {
         test
         for requirement_tests in requirements.values()
         for test in requirement_tests
     }
 
-    missing_test_names = required_test_names - all_test_names
-    assert not missing_test_names, f"could not find the following tests correlated with DMS requirements: {missing_test_names}"
+    existing_tests = set()
+    test_regex = re.compile(r"def (test_[^\(]+)\(.*\):")
+    for test_filename in test_directory.glob("**/test_*.py"):
+        with open(test_filename) as test_file:
+            test_file_contents = test_file.read()
+
+        for match in re.finditer(test_regex, test_file_contents):
+            test = f"{test_directory.stem}.{str(test_filename.relative_to(test_directory).parent).replace('/', '.')}.{test_filename.stem}.{match.group(1)}"
+            if test in required_tests:
+                existing_tests.add(test)
+
+    missing_tests = required_tests - existing_tests
+    assert not missing_tests, f"could not find the following tests correlated with DMS requirements: {missing_tests}"