CLI-15: Add executor markers to subprocess tests

- Mark subprocess executor tests with @pytest.mark.executor
- Add @pytest.mark.slow to long-running integration tests
- Ensure proper test categorization

Author: dugshub

tests/integration/test_subprocess_executor.py

@@ -13,6 +13,8 @@
 from cli_patterns.execution.subprocess_executor import SubprocessExecutor
 from cli_patterns.ui.design.registry import theme_registry
 
+pytestmark = pytest.mark.executor
+
 
 class TestSubprocessExecutorIntegration:
     """Integration tests for SubprocessExecutor with real commands."""
@@ -98,6 +100,7 @@ async def test_exit_codes(self, executor):
         assert result.exit_code == 42
 
     @pytest.mark.asyncio
+    @pytest.mark.slow
     async def test_timeout(self, executor):
         """Test command timeout."""
         # Use Python sleep to ensure cross-platform compatibility
@@ -135,6 +138,7 @@ async def test_environment_variables(self, executor):
         assert "test_value" in result.stdout
 
     @pytest.mark.asyncio
+    @pytest.mark.slow
     async def test_large_output(self, executor):
         """Test command with large output."""
         # Generate 1000 lines of output
@@ -149,6 +153,7 @@ async def test_large_output(self, executor):
         assert lines[-1] == "Line 999"
 
     @pytest.mark.asyncio
+    @pytest.mark.slow
     async def test_concurrent_execution(self, executor):
         """Test running multiple commands concurrently."""
         tasks = [
@@ -165,6 +170,7 @@ async def test_concurrent_execution(self, executor):
         assert "Command 3" in results[2].stdout
 
     @pytest.mark.asyncio
+    @pytest.mark.slow
     async def test_streaming_output(self):
         """Test output streaming in real-time."""
         console = Console(force_terminal=True, width=80, no_color=True)

tests/unit/execution/test_subprocess_executor.py

@@ -10,6 +10,8 @@
 
 from cli_patterns.execution.subprocess_executor import CommandResult, SubprocessExecutor
 
+pytestmark = pytest.mark.executor
+
 
 class TestCommandResult:
     """Test CommandResult class."""
@@ -138,6 +140,7 @@ async def test_permission_denied(self, executor, console):
             assert console.print.called
 
     @pytest.mark.asyncio
+    @pytest.mark.slow
     async def test_timeout(self, executor, console):
         """Test command timeout."""
         with patch("asyncio.create_subprocess_shell") as mock_create: