DEVX-60: feat: add create-task, create-pr, pre-push-check tools and devx.mak fragment

tests/unit/test_setup.py

@@ -186,6 +186,12 @@ class TestVerify:
         mock_run.side_effect = subprocess.TimeoutExpired(cmd="devx", timeout=10)
         _verify(".venv/bin")  # Should not raise
 
+    @patch("devx.tools.setup.subprocess.run")
+    def test_verify_handles_nonzero_returncode(self, mock_run: MagicMock) -> None:
+        """When a tool returns non-zero, it is skipped without raising."""
+        mock_run.return_value = MagicMock(returncode=1, stdout="", stderr="error")
+        _verify(".venv/bin")  # Should not raise
+
 
 class TestMain:
     @patch("devx.tools.setup._configure_tea_login")
@@ -304,6 +310,28 @@ class TestMain:
         assert result.exit_code != 0
         assert "Bin directory not found" in result.output
 
+    @patch("devx.tools.setup._verify")
+    @patch("devx.tools.setup._configure_tea_login")
+    @patch("devx.tools.setup._install_pre_commit_hooks")
+    @patch("devx.tools.setup._install_ansible_collections")
+    @patch("devx.tools.setup._install_python_deps")
+    def test_main_skip_install(
+        self,
+        mock_install_deps: MagicMock,
+        mock_install_ansible: MagicMock,
+        mock_install_hooks: MagicMock,
+        mock_verify: MagicMock,
+        mock_tea: MagicMock,
+        tmp_path: Path,
+    ) -> None:
+        bin_dir = tmp_path / "bin"
+        bin_dir.mkdir()
+        runner = CliRunner()
+        result = runner.invoke(main, ["--bin", str(bin_dir), "--skip-install"])
+        assert result.exit_code == 0
+        mock_install_deps.assert_not_called()
+        assert "Skipping pip install" in result.output
+
 
 def test_main_module_block(tmp_path: Path) -> None:
     """Test the __main__ block execution."""