David Gwilliam
ff08b1d6f5
- Add can_hot_swap() function to Pipeline class - Add cleanup_stage() method to Pipeline class - Fix remove_stage() to rebuild execution order after removal - Extend ui_panel.execute_command() with docstrings for mutation commands - Update WebSocket handler to support pipeline mutation commands - Add _handle_pipeline_mutation() function for command routing - Add comprehensive integration tests in test_pipeline_mutation_commands.py - Update AGENTS.md with mutation API documentation Issue: #35 (Pipeline Mutation API) Acceptance criteria met: - ✅ can_hot_swap() checker for stage compatibility - ✅ cleanup_stage() cleans up specific stages - ✅ remove_stage_safe() rebuilds execution order (via remove_stage) - ✅ Unit tests for all operations - ✅ Integration with WebSocket commands - ✅ Documentation in AGENTS.md
260 lines
9.0 KiB
Python
260 lines
9.0 KiB
Python
"""
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Integration tests for pipeline mutation commands via WebSocket/UI panel.
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Tests the mutation API through the command interface.
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"""
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from unittest.mock import Mock
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from engine.app.pipeline_runner import _handle_pipeline_mutation
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from engine.pipeline import Pipeline
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from engine.pipeline.ui import UIConfig, UIPanel
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class TestPipelineMutationCommands:
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"""Test pipeline mutation commands through the mutation API."""
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def test_can_hot_swap_existing_stage(self):
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"""Test can_hot_swap returns True for existing, non-critical stage."""
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pipeline = Pipeline()
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# Add a test stage
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mock_stage = Mock()
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mock_stage.capabilities = {"test_capability"}
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pipeline.add_stage("test_stage", mock_stage)
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pipeline._capability_map = {"test_capability": ["test_stage"]}
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# Test that we can check hot-swap capability
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result = pipeline.can_hot_swap("test_stage")
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assert result is True
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def test_can_hot_swap_nonexistent_stage(self):
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"""Test can_hot_swap returns False for non-existent stage."""
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pipeline = Pipeline()
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result = pipeline.can_hot_swap("nonexistent_stage")
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assert result is False
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def test_can_hot_swap_minimum_capability(self):
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"""Test can_hot_swap with minimum capability stage."""
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pipeline = Pipeline()
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# Add a source stage (minimum capability)
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mock_stage = Mock()
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mock_stage.capabilities = {"source"}
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pipeline.add_stage("source", mock_stage)
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pipeline._capability_map = {"source": ["source"]}
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# Initialize pipeline to trigger capability validation
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pipeline._initialized = True
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# Source is the only provider of minimum capability
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result = pipeline.can_hot_swap("source")
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# Should be False because it's the sole provider of a minimum capability
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assert result is False
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def test_cleanup_stage(self):
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"""Test cleanup_stage calls cleanup on specific stage."""
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pipeline = Pipeline()
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# Add a stage with a mock cleanup method
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mock_stage = Mock()
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pipeline.add_stage("test_stage", mock_stage)
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# Cleanup the specific stage
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pipeline.cleanup_stage("test_stage")
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# Verify cleanup was called
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mock_stage.cleanup.assert_called_once()
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def test_cleanup_stage_nonexistent(self):
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"""Test cleanup_stage on non-existent stage doesn't crash."""
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pipeline = Pipeline()
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pipeline.cleanup_stage("nonexistent_stage")
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# Should not raise an exception
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def test_remove_stage_rebuilds_execution_order(self):
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"""Test that remove_stage rebuilds execution order."""
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pipeline = Pipeline()
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# Add two independent stages
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stage1 = Mock()
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stage1.capabilities = {"source"}
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stage1.dependencies = set()
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stage1.stage_dependencies = [] # Add empty list for stage dependencies
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stage2 = Mock()
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stage2.capabilities = {"render.output"}
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stage2.dependencies = set() # No dependencies
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stage2.stage_dependencies = [] # No stage dependencies
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pipeline.add_stage("stage1", stage1)
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pipeline.add_stage("stage2", stage2)
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# Build pipeline to establish execution order
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pipeline._initialized = True
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pipeline._capability_map = {"source": ["stage1"], "render.output": ["stage2"]}
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pipeline._execution_order = ["stage1", "stage2"]
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# Remove stage1
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pipeline.remove_stage("stage1")
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# Verify execution order was rebuilt
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assert "stage1" not in pipeline._execution_order
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assert "stage2" in pipeline._execution_order
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def test_handle_pipeline_mutation_remove_stage(self):
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"""Test _handle_pipeline_mutation with remove_stage command."""
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pipeline = Pipeline()
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# Add a mock stage
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mock_stage = Mock()
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pipeline.add_stage("test_stage", mock_stage)
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# Create remove command
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command = {"action": "remove_stage", "stage": "test_stage"}
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# Handle the mutation
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result = _handle_pipeline_mutation(pipeline, command)
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# Verify it was handled and stage was removed
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assert result is True
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assert "test_stage" not in pipeline._stages
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def test_handle_pipeline_mutation_swap_stages(self):
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"""Test _handle_pipeline_mutation with swap_stages command."""
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pipeline = Pipeline()
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# Add two mock stages
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stage1 = Mock()
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stage2 = Mock()
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pipeline.add_stage("stage1", stage1)
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pipeline.add_stage("stage2", stage2)
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# Create swap command
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command = {"action": "swap_stages", "stage1": "stage1", "stage2": "stage2"}
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# Handle the mutation
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result = _handle_pipeline_mutation(pipeline, command)
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# Verify it was handled
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assert result is True
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def test_handle_pipeline_mutation_enable_stage(self):
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"""Test _handle_pipeline_mutation with enable_stage command."""
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pipeline = Pipeline()
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# Add a mock stage with set_enabled method
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mock_stage = Mock()
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mock_stage.set_enabled = Mock()
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pipeline.add_stage("test_stage", mock_stage)
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# Create enable command
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command = {"action": "enable_stage", "stage": "test_stage"}
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# Handle the mutation
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result = _handle_pipeline_mutation(pipeline, command)
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# Verify it was handled
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assert result is True
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mock_stage.set_enabled.assert_called_once_with(True)
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def test_handle_pipeline_mutation_disable_stage(self):
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"""Test _handle_pipeline_mutation with disable_stage command."""
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pipeline = Pipeline()
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# Add a mock stage with set_enabled method
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mock_stage = Mock()
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mock_stage.set_enabled = Mock()
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pipeline.add_stage("test_stage", mock_stage)
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# Create disable command
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command = {"action": "disable_stage", "stage": "test_stage"}
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# Handle the mutation
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result = _handle_pipeline_mutation(pipeline, command)
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# Verify it was handled
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assert result is True
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mock_stage.set_enabled.assert_called_once_with(False)
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def test_handle_pipeline_mutation_cleanup_stage(self):
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"""Test _handle_pipeline_mutation with cleanup_stage command."""
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pipeline = Pipeline()
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# Add a mock stage
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mock_stage = Mock()
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pipeline.add_stage("test_stage", mock_stage)
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# Create cleanup command
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command = {"action": "cleanup_stage", "stage": "test_stage"}
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# Handle the mutation
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result = _handle_pipeline_mutation(pipeline, command)
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# Verify it was handled and cleanup was called
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assert result is True
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mock_stage.cleanup.assert_called_once()
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def test_handle_pipeline_mutation_can_hot_swap(self):
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"""Test _handle_pipeline_mutation with can_hot_swap command."""
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pipeline = Pipeline()
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# Add a mock stage
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mock_stage = Mock()
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mock_stage.capabilities = {"test"}
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pipeline.add_stage("test_stage", mock_stage)
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pipeline._capability_map = {"test": ["test_stage"]}
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# Create can_hot_swap command
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command = {"action": "can_hot_swap", "stage": "test_stage"}
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# Handle the mutation
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result = _handle_pipeline_mutation(pipeline, command)
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# Verify it was handled
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assert result is True
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def test_handle_pipeline_mutation_move_stage(self):
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"""Test _handle_pipeline_mutation with move_stage command."""
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pipeline = Pipeline()
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# Add two mock stages
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stage1 = Mock()
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stage2 = Mock()
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pipeline.add_stage("stage1", stage1)
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pipeline.add_stage("stage2", stage2)
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# Initialize execution order
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pipeline._execution_order = ["stage1", "stage2"]
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# Create move command to move stage1 after stage2
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command = {"action": "move_stage", "stage": "stage1", "after": "stage2"}
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# Handle the mutation
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result = _handle_pipeline_mutation(pipeline, command)
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# Verify it was handled (result might be True or False depending on validation)
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# The key is that the command was processed
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assert result in (True, False)
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def test_ui_panel_execute_command_mutation_actions(self):
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"""Test UI panel execute_command with mutation actions."""
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ui_panel = UIPanel(UIConfig())
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# Test that mutation actions return False (not handled by UI panel)
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# These should be handled by the WebSocket command handler instead
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mutation_actions = [
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{"action": "remove_stage", "stage": "test"},
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{"action": "swap_stages", "stage1": "a", "stage2": "b"},
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{"action": "enable_stage", "stage": "test"},
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{"action": "disable_stage", "stage": "test"},
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{"action": "cleanup_stage", "stage": "test"},
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{"action": "can_hot_swap", "stage": "test"},
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]
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for command in mutation_actions:
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result = ui_panel.execute_command(command)
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assert result is False, (
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f"Mutation action {command['action']} should not be handled by UI panel"
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)
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