GRM-27: fix: CI workflows for rootless runner compatibility

tests/unit/test_auto_merge.py

@@ -9,7 +9,7 @@ from click.testing import CliRunner
 
 from gitea_runner_manager.config import CONVENTIONAL_RE, TASK_ID_RE
 from gitea_runner_manager.exceptions import APIError
-from scripts.auto_merge import extract_task_id, main, validate_pr_title
+from scripts.auto_merge import extract_task_id, has_ready_to_merge_label, main, validate_pr_title
 
 
 class TestRegexes:
@@ -53,40 +53,111 @@ class TestValidatePrTitle:
         assert "conventional" in str(exc.value)
 
 
+class TestHasReadyToMergeLabel:
+    def test_label_present(self) -> None:
+        client = MagicMock()
+        client.get_pr_labels.return_value = [{"name": "bug"}, {"name": "ready-to-merge"}]
+        assert has_ready_to_merge_label(client, "5") is True
+
+    def test_label_absent(self) -> None:
+        client = MagicMock()
+        client.get_pr_labels.return_value = [{"name": "bug"}]
+        assert has_ready_to_merge_label(client, "5") is False
+
+    def test_no_labels(self) -> None:
+        client = MagicMock()
+        client.get_pr_labels.return_value = []
+        assert has_ready_to_merge_label(client, "5") is False
+
+
 class TestMain:
     @patch.dict("os.environ", {"REPO_TOKEN": "tok"})
     @patch("scripts.auto_merge.GiteaClient")
-    def test_successful_flow(self, mock_client_cls: MagicMock) -> None:
+    def test_successful_flow_with_label_arg(self, mock_client_cls: MagicMock) -> None:
         mock_client = MagicMock()
         mock_client_cls.return_value = mock_client
         runner = CliRunner()
+        result = runner.invoke(
+            main,
+            ["GRM-19-fix-bug", "fix: resolve timeout", "owner/repo", "7", "ready-to-merge"],
+        )
+        assert result.exit_code == 0
+        assert "squash-merged" in result.output
+        mock_client.merge_pr.assert_called_once_with("7", "GRM-19: fix: resolve timeout")
+
+    @patch.dict("os.environ", {"REPO_TOKEN": "tok"})
+    @patch("scripts.auto_merge.GiteaClient")
+    def test_successful_flow_label_fallback(self, mock_client_cls: MagicMock) -> None:
+        """Label not passed via arg, but PR has ready-to-merge via API."""
+        mock_client = MagicMock()
+        mock_client.get_pr_labels.return_value = [{"name": "ready-to-merge"}]
+        mock_client_cls.return_value = mock_client
+        runner = CliRunner()
         result = runner.invoke(
             main,
             ["GRM-19-fix-bug", "fix: resolve timeout", "owner/repo", "7"],
         )
         assert result.exit_code == 0
         assert "squash-merged" in result.output
-        mock_client_cls.assert_called_once()
         mock_client.merge_pr.assert_called_once_with("7", "GRM-19: fix: resolve timeout")
 
+    @patch.dict("os.environ", {"REPO_TOKEN": "tok"})
+    @patch("scripts.auto_merge.GiteaClient")
+    def test_wrong_label_skips_merge(self, mock_client_cls: MagicMock) -> None:
+        """Label is not ready-to-merge and PR doesn't have it via API either."""
+        mock_client = MagicMock()
+        mock_client.get_pr_labels.return_value = [{"name": "bug"}]
+        mock_client_cls.return_value = mock_client
+        runner = CliRunner()
+        result = runner.invoke(
+            main,
+            ["GRM-19-fix-bug", "fix: resolve timeout", "owner/repo", "7", "bug"],
+        )
+        assert result.exit_code == 0
+        assert "skipping" in result.output
+        mock_client.merge_pr.assert_not_called()
+
+    @patch.dict("os.environ", {"REPO_TOKEN": "tok"})
+    @patch("scripts.auto_merge.GiteaClient")
+    def test_empty_label_falls_back_to_api(self, mock_client_cls: MagicMock) -> None:
+        """Gitea Actions doesn't populate label name, but API shows ready-to-merge."""
+        mock_client = MagicMock()
+        mock_client.get_pr_labels.return_value = [{"name": "ready-to-merge"}]
+        mock_client_cls.return_value = mock_client
+        runner = CliRunner()
+        result = runner.invoke(
+            main,
+            ["GRM-19-fix-bug", "fix: resolve timeout", "owner/repo", "7", ""],
+        )
+        assert result.exit_code == 0
+        assert "squash-merged" in result.output
+
     @patch.dict("os.environ", {"REPO_TOKEN": ""}, clear=True)
     def test_missing_token_exits(self) -> None:
         runner = CliRunner()
-        result = runner.invoke(main, ["branch", "title", "repo", "1"])
+        result = runner.invoke(main, ["branch", "title", "owner/repo", "1"])
         assert result.exit_code == 1
         assert "REPO_TOKEN" in result.output
 
     @patch.dict("os.environ", {"REPO_TOKEN": "tok"})
-    def test_missing_task_id_exits(self) -> None:
+    @patch("scripts.auto_merge.GiteaClient")
+    def test_missing_task_id_exits(self, mock_client_cls: MagicMock) -> None:
+        mock_client = MagicMock()
+        mock_client.get_pr_labels.return_value = [{"name": "ready-to-merge"}]
+        mock_client_cls.return_value = mock_client
         runner = CliRunner()
-        result = runner.invoke(main, ["feature-no-id", "fix: bug", "repo", "1"])
+        result = runner.invoke(main, ["feature-no-id", "fix: bug", "owner/repo", "1"])
         assert result.exit_code == 1
         assert "task ID" in result.output
 
     @patch.dict("os.environ", {"REPO_TOKEN": "tok"})
-    def test_invalid_pr_title_exits(self) -> None:
+    @patch("scripts.auto_merge.GiteaClient")
+    def test_invalid_pr_title_exits(self, mock_client_cls: MagicMock) -> None:
+        mock_client = MagicMock()
+        mock_client.get_pr_labels.return_value = [{"name": "ready-to-merge"}]
+        mock_client_cls.return_value = mock_client
         runner = CliRunner()
-        result = runner.invoke(main, ["GRM-19-fix", "random title", "repo", "1"])
+        result = runner.invoke(main, ["GRM-19-fix", "random title", "owner/repo", "1"])
         assert result.exit_code == 1
         assert "conventional" in result.output
 
@@ -94,6 +165,7 @@ class TestMain:
     @patch("scripts.auto_merge.GiteaClient")
     def test_merge_pr_failure_raises_click(self, mock_client_cls: MagicMock) -> None:
         mock_client = MagicMock()
+        mock_client.get_pr_labels.return_value = [{"name": "ready-to-merge"}]
         mock_client.merge_pr.side_effect = APIError(http.HTTPStatus.INTERNAL_SERVER_ERROR, "server error")
         mock_client_cls.return_value = mock_client
         runner = CliRunner()
@@ -105,6 +177,7 @@ class TestMain:
     @patch("scripts.auto_merge.GiteaClient")
     def test_merge_pr_json_parse_failure(self, mock_client_cls: MagicMock) -> None:
         mock_client = MagicMock()
+        mock_client.get_pr_labels.return_value = [{"name": "ready-to-merge"}]
         mock_client.merge_pr.side_effect = APIError(http.HTTPStatus.BAD_GATEWAY, "bad gateway")
         mock_client_cls.return_value = mock_client
         runner = CliRunner()