GRM-20: fix: enforce GRM-N: conventional on master commits and PR titles

tests/unit/test_validate_commit_msg.py

@@ -82,11 +82,25 @@ class TestMain:
         with patch("scripts.validate_commit_msg.get_branch", return_value="GRM-19"):
             main(["validate_commit_msg.py", msg_path])
 
-    def test_accepts_anything_on_master(self) -> None:
+    def test_accepts_valid_master_commit(self) -> None:
         msg_path = self._write_msg("GRM-19: feat: add feature")
         with patch("scripts.validate_commit_msg.get_branch", return_value="master"):
             main(["validate_commit_msg.py", msg_path])
 
+    def test_rejects_master_without_task_id(self) -> None:
+        msg_path = self._write_msg("feat: add feature")
+        with patch("scripts.validate_commit_msg.get_branch", return_value="master"):
+            with pytest.raises(SystemExit) as exc:
+                main(["validate_commit_msg.py", msg_path])
+            assert exc.value.code == 1
+
+    def test_rejects_master_with_non_conventional_after_task_id(self) -> None:
+        msg_path = self._write_msg("GRM-19: random message")
+        with patch("scripts.validate_commit_msg.get_branch", return_value="master"):
+            with pytest.raises(SystemExit) as exc:
+                main(["validate_commit_msg.py", msg_path])
+            assert exc.value.code == 1
+
     def test_rejects_non_conventional_on_feature_branch(self) -> None:
         msg_path = self._write_msg("random message")
         with patch("scripts.validate_commit_msg.get_branch", return_value="feature"):
@@ -106,6 +120,12 @@ class TestMain:
 
 
 def test_main_module_block() -> None:
+    import tempfile
+
+    with tempfile.NamedTemporaryFile(mode="w", delete=False) as f:
+        f.write("GRM-1: feat: test")
+        msg_path = f.name
+
     with patch("scripts.validate_commit_msg.get_branch", return_value="master"):
         import scripts.validate_commit_msg as vcm
 
@@ -115,4 +135,6 @@ def test_main_module_block() -> None:
         source = source.replace('if __name__ == "__main__":\n    main()\n', "")
         namespace = dict(vcm.__dict__)
         exec(compile(source, vcm.__file__, "exec"), namespace)
-        namespace["main"](["validate_commit_msg.py", "/dev/null"])
+        namespace["main"](["validate_commit_msg.py", msg_path])
+
+    os.unlink(msg_path)