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feat(tests): improve coverage to 56%, add benchmark regression tests

Browse Source 
- Add EffectPlugin ABC with @abstractmethod decorators for interface enforcement
- Add runtime interface checking in discover_plugins() with issubclass()
- Add EffectContext factory with sensible defaults
- Standardize Display __init__ (remove redundant init in TerminalDisplay)
- Document effect behavior when ticker_height=0
- Evaluate legacy effects: document coexistence, no deprecation needed
- Research plugin patterns (VST, Python entry points)
- Fix pysixel dependency (removed broken dependency)

Test coverage improvements:
- Add DisplayRegistry tests
- Add MultiDisplay tests
- Add SixelDisplay tests
- Add controller._get_display tests
- Add effects controller command handling tests
- Add benchmark regression tests (@pytest.mark.benchmark)
- Add pytest marker for benchmark tests in pyproject.toml

Documentation updates:
- Update AGENTS.md with 56% coverage stats and effect plugin docs
- Update README.md with Sixel display mode and benchmark commands
- Add new modules to architecture section
This commit is contained in:
David Gwilliam
2026-03-15 23:26:10 -07:00
parent dcd31469a5
commit 9e4d54a82e
17 changed files with 768 additions and 45 deletions
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48
AGENTS.md
View File

@@ -159,6 +159,31 @@ mise run test-cov
The project uses pytest with strict marker enforcement. Test configuration is in `pyproject.toml` under `[tool.pytest.ini_options]`.
### Test Coverage Strategy
Current coverage: 56% (336 tests)
Key areas with lower coverage (acceptable for now):
- **app.py** (8%): Main entry point - integration heavy, requires terminal
- **scroll.py** (10%): Terminal-dependent rendering logic
- **benchmark.py** (0%): Standalone benchmark tool, runs separately
Key areas with good coverage:
- **display/backends/null.py** (95%): Easy to test headlessly
- **display/backends/terminal.py** (96%): Uses mocking
- **display/backends/multi.py** (100%): Simple forwarding logic
- **effects/performance.py** (99%): Pure Python logic
- **eventbus.py** (96%): Simple event system
- **effects/controller.py** (95%): Effects command handling
Areas needing more tests:
- **websocket.py** (48%): Network I/O, hard to test in CI
- **ntfy.py** (50%): Network I/O, hard to test in CI
- **mic.py** (61%): Audio I/O, hard to test in CI
Note: Terminal-dependent modules (scroll, layers render) are harder to test in CI.
Performance regression tests are in `tests/test_benchmark.py` with `@pytest.mark.benchmark`.
## Architecture Notes
- **ntfy.py** and **mic.py** are standalone modules with zero internal dependencies
@@ -169,13 +194,15 @@ The project uses pytest with strict marker enforcement. Test configuration is in
### Display System
- **Display abstraction** (`engine/display.py`): swap display backends via the Display protocol
- `TerminalDisplay` - ANSI terminal output
- `WebSocketDisplay` - broadcasts to web clients via WebSocket
- `SixelDisplay` - renders to Sixel graphics (pure Python, no C dependency)
- `MultiDisplay` - forwards to multiple displays simultaneously
- **Display abstraction** (`engine/display/`): swap display backends via the Display protocol
- `display/backends/terminal.py` - ANSI terminal output
- `display/backends/websocket.py` - broadcasts to web clients via WebSocket
- `display/backends/sixel.py` - renders to Sixel graphics (pure Python, no C dependency)
- `display/backends/null.py` - headless display for testing
- `display/backends/multi.py` - forwards to multiple displays simultaneously
- `display/__init__.py` - DisplayRegistry for backend discovery
- **WebSocket display** (`engine/websocket_display.py`): real-time frame broadcasting to web browsers
- **WebSocket display** (`engine/display/backends/websocket.py`): real-time frame broadcasting to web browsers
- WebSocket server on port 8765
- HTTP server on port 8766 (serves HTML client)
- Client at `client/index.html` with ANSI color parsing and fullscreen support
@@ -186,6 +213,15 @@ The project uses pytest with strict marker enforcement. Test configuration is in
- `sixel` - Sixel graphics in supported terminals (iTerm2, mintty, etc.)
- `both` - Terminal + WebSocket simultaneously
### Effect Plugin System
- **EffectPlugin ABC** (`engine/effects/types.py`): abstract base class for effects
- All effects must inherit from EffectPlugin and implement `process()` and `configure()`
- Runtime discovery via `effects_plugins/__init__.py` using `issubclass()` checks
- **EffectRegistry** (`engine/effects/registry.py`): manages registered effects
- **EffectChain** (`engine/effects/chain.py`): chains effects in pipeline order
### Command & Control
- C&C uses separate ntfy topics for commands and responses

64
README.md
View File

@@ -75,6 +75,7 @@ Mainline supports multiple display backends:
- **Terminal** (`--display terminal`): ANSI terminal output (default)
- **WebSocket** (`--display websocket`): Stream to web browser clients
- **Sixel** (`--display sixel`): Sixel graphics in supported terminals (iTerm2, mintty)
- **Both** (`--display both`): Terminal + WebSocket simultaneously
WebSocket mode serves a web client at http://localhost:8766 with ANSI color support and fullscreen mode.
@@ -131,10 +132,17 @@ engine/
translate.py Google Translate wrapper + region detection
render.py OTF → half-block pipeline (SSAA, gradient)
effects/ plugin architecture for visual effects
controller.py handles /effects commands
chain.py effect pipeline chaining
types.py EffectPlugin ABC, EffectConfig, EffectContext
registry.py effect registration and lookup
chain.py effect pipeline chaining
controller.py handles /effects commands
performance.py performance monitoring
legacy.py legacy functional effects
effects_plugins/ effect plugin implementations
noise.py noise effect
fade.py fade effect
glitch.py glitch effect
firehose.py firehose effect
fetch.py RSS/Gutenberg fetching + cache
ntfy.py NtfyPoller — standalone, zero internal deps
mic.py MicMonitor — standalone, graceful fallback
@@ -147,8 +155,15 @@ engine/
controller.py coordinates ntfy/mic monitoring
emitters.py background emitters
types.py type definitions
display.py Display protocol (Terminal, WebSocket, Multi)
websocket_display.py WebSocket server for browser clients
display/ Display backend system
__init__.py DisplayRegistry, get_monitor
backends/
terminal.py ANSI terminal display
websocket.py WebSocket server for browser clients
sixel.py Sixel graphics (pure Python)
null.py headless display for testing
multi.py forwards to multiple displays
benchmark.py performance benchmarking tool
```
---
@@ -171,19 +186,25 @@ With [mise](https://mise.jdx.dev/):
```bash
mise run test # run test suite
mise run test-cov # run with coverage report
mise run lint # ruff check
mise run lint-fix # ruff check --fix
mise run format # ruff format
mise run test-cov # run with coverage report
mise run run # terminal display
mise run run-websocket # web display only
mise run run-both # terminal + web
mise run run-client # both + open browser
mise run lint # ruff check
mise run lint-fix # ruff check --fix
mise run format # ruff format
mise run cmd # C&C command interface
mise run cmd-stats # watch effects stats
mise run topics-init # initialize ntfy topics
mise run run # terminal display
mise run run-websocket # web display only
mise run run-sixel # sixel graphics
mise run run-both # terminal + web
mise run run-client # both + open browser
mise run cmd # C&C command interface
mise run cmd-stats # watch effects stats
mise run benchmark # run performance benchmarks
mise run benchmark-json # save as JSON
mise run topics-init # initialize ntfy topics
```
### Testing
@@ -191,8 +212,21 @@ mise run topics-init # initialize ntfy topics
```bash
uv run pytest
uv run pytest --cov=engine --cov-report=term-missing
# Run with mise
mise run test
mise run test-cov
# Run performance benchmarks
mise run benchmark
mise run benchmark-json
# Run benchmark hook mode (for CI)
uv run python -m engine.benchmark --hook
```
Performance regression tests are in `tests/test_benchmark.py` marked with `@pytest.mark.benchmark`.
### Linting
```bash

7
effects_plugins/__init__.py
View File

@@ -5,6 +5,7 @@ PLUGIN_DIR = Path(__file__).parent
def discover_plugins():
from engine.effects.registry import get_registry
from engine.effects.types import EffectPlugin
registry = get_registry()
imported = {}
@@ -22,11 +23,13 @@ def discover_plugins():
attr = getattr(module, attr_name)
if (
isinstance(attr, type)
and hasattr(attr, "name")
and hasattr(attr, "process")
and issubclass(attr, EffectPlugin)
and attr is not EffectPlugin
and attr_name.endswith("Effect")
):
plugin = attr()
if not isinstance(plugin, EffectPlugin):
continue
registry.register(plugin)
imported[plugin.name] = plugin
except Exception:

6
effects_plugins/fade.py
View File

@@ -3,7 +3,7 @@ import random
from engine.effects.types import EffectConfig, EffectContext, EffectPlugin
class FadeEffect:
class FadeEffect(EffectPlugin):
name = "fade"
config = EffectConfig(enabled=True, intensity=1.0)
@@ -54,5 +54,5 @@ class FadeEffect:
i += 1
return "".join(result)
def configure(self, cfg: EffectConfig) -> None:
self.config = cfg
def configure(self, config: EffectConfig) -> None:
self.config = config

6
effects_plugins/firehose.py
View File

@@ -7,7 +7,7 @@ from engine.sources import FEEDS, POETRY_SOURCES
from engine.terminal import C_DIM, G_DIM, G_LO, RST, W_GHOST
class FirehoseEffect:
class FirehoseEffect(EffectPlugin):
name = "firehose"
config = EffectConfig(enabled=True, intensity=1.0)
@@ -68,5 +68,5 @@ class FirehoseEffect:
color = random.choice([G_LO, C_DIM, W_GHOST])
return f"{color}{text}{RST}"
def configure(self, cfg: EffectConfig) -> None:
self.config = cfg
def configure(self, config: EffectConfig) -> None:
self.config = config

6
effects_plugins/glitch.py
View File

@@ -5,7 +5,7 @@ from engine.effects.types import EffectConfig, EffectContext, EffectPlugin
from engine.terminal import C_DIM, DIM, G_DIM, G_LO, RST
class GlitchEffect:
class GlitchEffect(EffectPlugin):
name = "glitch"
config = EffectConfig(enabled=True, intensity=1.0)
@@ -33,5 +33,5 @@ class GlitchEffect:
o = random.randint(0, w - n)
return " " * o + f"{G_LO}{DIM}" + c * n + RST
def configure(self, cfg: EffectConfig) -> None:
self.config = cfg
def configure(self, config: EffectConfig) -> None:
self.config = config

6
effects_plugins/noise.py
View File

@@ -5,7 +5,7 @@ from engine.effects.types import EffectConfig, EffectContext, EffectPlugin
from engine.terminal import C_DIM, G_DIM, G_LO, RST, W_GHOST
class NoiseEffect:
class NoiseEffect(EffectPlugin):
name = "noise"
config = EffectConfig(enabled=True, intensity=0.15)
@@ -32,5 +32,5 @@ class NoiseEffect:
for _ in range(w)
)
def configure(self, cfg: EffectConfig) -> None:
self.config = cfg
def configure(self, config: EffectConfig) -> None:
self.config = config

4
engine/display/backends/terminal.py
View File

@@ -11,10 +11,6 @@ class TerminalDisplay:
width: int = 80
height: int = 24
def __init__(self):
self.width = 80
self.height = 24
def init(self, width: int, height: int) -> None:
from engine.terminal import CURSOR_OFF

8
engine/effects/__init__.py
View File

@@ -10,7 +10,12 @@ from engine.effects.legacy import (
)
from engine.effects.performance import PerformanceMonitor, get_monitor, set_monitor
from engine.effects.registry import EffectRegistry, get_registry, set_registry
from engine.effects.types import EffectConfig, EffectContext, PipelineConfig
from engine.effects.types import (
EffectConfig,
EffectContext,
PipelineConfig,
create_effect_context,
)
def get_effect_chain():
@@ -25,6 +30,7 @@ __all__ = [
"EffectConfig",
"EffectContext",
"PipelineConfig",
"create_effect_context",
"get_registry",
"set_registry",
"get_effect_chain",

8
engine/effects/legacy.py
View File

@@ -1,6 +1,14 @@
"""
Visual effects: noise, glitch, fade, ANSI-aware truncation, firehose, headline pool.
Depends on: config, terminal, sources.
These are low-level functional implementations of visual effects. They are used
internally by the EffectPlugin system (effects_plugins/*.py) and also directly
by layers.py and scroll.py for rendering.
The plugin system provides a higher-level OOP interface with configuration
support, while these legacy functions provide direct functional access.
Both systems coexist - there are no current plans to deprecate the legacy functions.
"""
import random

88
engine/effects/types.py
View File

@@ -1,3 +1,24 @@
"""
Visual effects type definitions and base classes.
EffectPlugin Architecture:
- Uses ABC (Abstract Base Class) for interface enforcement
- Runtime discovery via directory scanning (effects_plugins/)
- Configuration via EffectConfig dataclass
- Context passed through EffectContext dataclass
Plugin System Research (see AGENTS.md for references):
- VST: Standardized audio interfaces, chaining, presets (FXP/FXB)
- Python Entry Points: Namespace packages, importlib.metadata discovery
- Shadertoy: Shader-based with uniforms as context
Current gaps vs industry patterns:
- No preset save/load system
- No external plugin distribution via entry points
- No plugin metadata (version, author, description)
"""
from abc import ABC, abstractmethod
from dataclasses import dataclass, field
from typing import Any
@@ -22,15 +43,76 @@ class EffectConfig:
params: dict[str, Any] = field(default_factory=dict)
class EffectPlugin:
class EffectPlugin(ABC):
"""Abstract base class for effect plugins.
Subclasses must define:
- name: str - unique identifier for the effect
- config: EffectConfig - current configuration
And implement:
- process(buf, ctx) -> list[str]
- configure(config) -> None
Effect Behavior with ticker_height=0:
- NoiseEffect: Returns buffer unchanged (no ticker to apply noise to)
- FadeEffect: Returns buffer unchanged (no ticker to fade)
- GlitchEffect: Processes normally (doesn't depend on ticker_height)
- FirehoseEffect: Returns buffer unchanged if no items in context
Effects should handle missing or zero context values gracefully by
returning the input buffer unchanged rather than raising errors.
"""
name: str
config: EffectConfig
@abstractmethod
def process(self, buf: list[str], ctx: EffectContext) -> list[str]:
raise NotImplementedError
"""Process the buffer with this effect applied.
Args:
buf: List of lines to process
ctx: Effect context with terminal state
Returns:
Processed buffer (may be same object or new list)
"""
...
@abstractmethod
def configure(self, config: EffectConfig) -> None:
raise NotImplementedError
"""Configure the effect with new settings.
Args:
config: New configuration to apply
"""
...
def create_effect_context(
terminal_width: int = 80,
terminal_height: int = 24,
scroll_cam: int = 0,
ticker_height: int = 0,
mic_excess: float = 0.0,
grad_offset: float = 0.0,
frame_number: int = 0,
has_message: bool = False,
items: list | None = None,
) -> EffectContext:
"""Factory function to create EffectContext with sensible defaults."""
return EffectContext(
terminal_width=terminal_width,
terminal_height=terminal_height,
scroll_cam=scroll_cam,
ticker_height=ticker_height,
mic_excess=mic_excess,
grad_offset=grad_offset,
frame_number=frame_number,
has_message=has_message,
items=items or [],
)
@dataclass

3
pyproject.toml
View File

@@ -70,6 +70,9 @@ addopts = [
"--tb=short",
"-v",
]
markers = [
"benchmark: marks tests as performance benchmarks (may be slow)",
]
filterwarnings = [
"ignore::DeprecationWarning",
]

100
tests/test_benchmark.py Normal file
View File

@@ -0,0 +1,100 @@
"""
Tests for engine.benchmark module - performance regression tests.
"""
from unittest.mock import patch
import pytest
from engine.display import NullDisplay
class TestBenchmarkNullDisplay:
"""Performance tests for NullDisplay - regression tests."""
@pytest.mark.benchmark
def test_null_display_minimum_fps(self):
"""NullDisplay should meet minimum performance threshold."""
import time
display = NullDisplay()
display.init(80, 24)
buffer = ["x" * 80 for _ in range(24)]
iterations = 1000
start = time.perf_counter()
for _ in range(iterations):
display.show(buffer)
elapsed = time.perf_counter() - start
fps = iterations / elapsed
min_fps = 20000
assert fps >= min_fps, f"NullDisplay FPS {fps:.0f} below minimum {min_fps}"
@pytest.mark.benchmark
def test_effects_minimum_throughput(self):
"""Effects should meet minimum processing throughput."""
import time
from effects_plugins import discover_plugins
from engine.effects import EffectContext, get_registry
discover_plugins()
registry = get_registry()
effect = registry.get("noise")
assert effect is not None, "Noise effect should be registered"
buffer = ["x" * 80 for _ in range(24)]
ctx = EffectContext(
terminal_width=80,
terminal_height=24,
scroll_cam=0,
ticker_height=20,
mic_excess=0.0,
grad_offset=0.0,
frame_number=0,
has_message=False,
)
iterations = 500
start = time.perf_counter()
for _ in range(iterations):
effect.process(buffer, ctx)
elapsed = time.perf_counter() - start
fps = iterations / elapsed
min_fps = 10000
assert fps >= min_fps, (
f"Effect processing FPS {fps:.0f} below minimum {min_fps}"
)
class TestBenchmarkWebSocketDisplay:
"""Performance tests for WebSocketDisplay."""
@pytest.mark.benchmark
def test_websocket_display_minimum_fps(self):
"""WebSocketDisplay should meet minimum performance threshold."""
import time
with patch("engine.display.backends.websocket.websockets", None):
from engine.display import WebSocketDisplay
display = WebSocketDisplay()
display.init(80, 24)
buffer = ["x" * 80 for _ in range(24)]
iterations = 500
start = time.perf_counter()
for _ in range(iterations):
display.show(buffer)
elapsed = time.perf_counter() - start
fps = iterations / elapsed
min_fps = 10000
assert fps >= min_fps, (
f"WebSocketDisplay FPS {fps:.0f} below minimum {min_fps}"
)

88
tests/test_controller.py
View File

@@ -5,7 +5,75 @@ Tests for engine.controller module.
from unittest.mock import MagicMock, patch
from engine import config
from engine.controller import StreamController
from engine.controller import StreamController, _get_display
class TestGetDisplay:
"""Tests for _get_display function."""
@patch("engine.controller.WebSocketDisplay")
@patch("engine.controller.TerminalDisplay")
def test_get_display_terminal(self, mock_terminal, mock_ws):
"""returns TerminalDisplay for display=terminal."""
mock_terminal.return_value = MagicMock()
mock_ws.return_value = MagicMock()
cfg = config.Config(display="terminal")
display = _get_display(cfg)
mock_terminal.assert_called()
assert isinstance(display, MagicMock)
@patch("engine.controller.WebSocketDisplay")
@patch("engine.controller.TerminalDisplay")
def test_get_display_websocket(self, mock_terminal, mock_ws):
"""returns WebSocketDisplay for display=websocket."""
mock_ws_instance = MagicMock()
mock_ws.return_value = mock_ws_instance
mock_terminal.return_value = MagicMock()
cfg = config.Config(display="websocket")
_get_display(cfg)
mock_ws.assert_called()
mock_ws_instance.start_server.assert_called()
mock_ws_instance.start_http_server.assert_called()
@patch("engine.controller.SixelDisplay")
def test_get_display_sixel(self, mock_sixel):
"""returns SixelDisplay for display=sixel."""
mock_sixel.return_value = MagicMock()
cfg = config.Config(display="sixel")
_get_display(cfg)
mock_sixel.assert_called()
def test_get_display_unknown_returns_null(self):
"""returns NullDisplay for unknown display mode."""
cfg = config.Config(display="unknown")
display = _get_display(cfg)
from engine.display import NullDisplay
assert isinstance(display, NullDisplay)
@patch("engine.controller.WebSocketDisplay")
@patch("engine.controller.TerminalDisplay")
@patch("engine.controller.MultiDisplay")
def test_get_display_both(self, mock_multi, mock_terminal, mock_ws):
"""returns MultiDisplay for display=both."""
mock_terminal_instance = MagicMock()
mock_ws_instance = MagicMock()
mock_terminal.return_value = mock_terminal_instance
mock_ws.return_value = mock_ws_instance
cfg = config.Config(display="both")
_get_display(cfg)
mock_multi.assert_called()
call_args = mock_multi.call_args[0][0]
assert mock_terminal_instance in call_args
assert mock_ws_instance in call_args
class TestStreamController:
@@ -68,6 +136,24 @@ class TestStreamController:
assert mic_ok is False
assert ntfy_ok is True
@patch("engine.controller.MicMonitor")
def test_initialize_sources_cc_subscribed(self, mock_mic):
"""initialize_sources subscribes C&C handler."""
mock_mic_instance = MagicMock()
mock_mic_instance.available = False
mock_mic_instance.start.return_value = False
mock_mic.return_value = mock_mic_instance
with patch("engine.controller.NtfyPoller") as mock_ntfy:
mock_ntfy_instance = MagicMock()
mock_ntfy_instance.start.return_value = True
mock_ntfy.return_value = mock_ntfy_instance
controller = StreamController()
controller.initialize_sources()
mock_ntfy_instance.subscribe.assert_called()
class TestStreamControllerCleanup:
"""Tests for StreamController cleanup."""

124
tests/test_display.py
View File

@@ -2,7 +2,10 @@
Tests for engine.display module.
"""
from engine.display import NullDisplay, TerminalDisplay
from unittest.mock import MagicMock
from engine.display import DisplayRegistry, NullDisplay, TerminalDisplay
from engine.display.backends.multi import MultiDisplay
class TestDisplayProtocol:
@@ -25,6 +28,66 @@ class TestDisplayProtocol:
assert hasattr(display, "cleanup")
class TestDisplayRegistry:
"""Tests for DisplayRegistry class."""
def setup_method(self):
"""Reset registry before each test."""
DisplayRegistry._backends = {}
DisplayRegistry._initialized = False
def test_register_adds_backend(self):
"""register adds a backend to the registry."""
DisplayRegistry.register("test", TerminalDisplay)
assert DisplayRegistry.get("test") == TerminalDisplay
def test_register_case_insensitive(self):
"""register is case insensitive."""
DisplayRegistry.register("TEST", TerminalDisplay)
assert DisplayRegistry.get("test") == TerminalDisplay
def test_get_returns_none_for_unknown(self):
"""get returns None for unknown backend."""
assert DisplayRegistry.get("unknown") is None
def test_list_backends_returns_all(self):
"""list_backends returns all registered backends."""
DisplayRegistry.register("a", TerminalDisplay)
DisplayRegistry.register("b", NullDisplay)
backends = DisplayRegistry.list_backends()
assert "a" in backends
assert "b" in backends
def test_create_returns_instance(self):
"""create returns a display instance."""
DisplayRegistry.register("test", NullDisplay)
display = DisplayRegistry.create("test")
assert isinstance(display, NullDisplay)
def test_create_returns_none_for_unknown(self):
"""create returns None for unknown backend."""
display = DisplayRegistry.create("unknown")
assert display is None
def test_initialize_registers_defaults(self):
"""initialize registers default backends."""
DisplayRegistry.initialize()
assert DisplayRegistry.get("terminal") == TerminalDisplay
assert DisplayRegistry.get("null") == NullDisplay
from engine.display.backends.sixel import SixelDisplay
from engine.display.backends.websocket import WebSocketDisplay
assert DisplayRegistry.get("websocket") == WebSocketDisplay
assert DisplayRegistry.get("sixel") == SixelDisplay
def test_initialize_idempotent(self):
"""initialize can be called multiple times safely."""
DisplayRegistry.initialize()
DisplayRegistry._backends["custom"] = TerminalDisplay
DisplayRegistry.initialize()
assert "custom" in DisplayRegistry.list_backends()
class TestTerminalDisplay:
"""Tests for TerminalDisplay class."""
@@ -77,3 +140,62 @@ class TestNullDisplay:
"""cleanup does nothing."""
display = NullDisplay()
display.cleanup()
class TestMultiDisplay:
"""Tests for MultiDisplay class."""
def test_init_stores_dimensions(self):
"""init stores dimensions and forwards to displays."""
mock_display1 = MagicMock()
mock_display2 = MagicMock()
multi = MultiDisplay([mock_display1, mock_display2])
multi.init(120, 40)
assert multi.width == 120
assert multi.height == 40
mock_display1.init.assert_called_once_with(120, 40)
mock_display2.init.assert_called_once_with(120, 40)
def test_show_forwards_to_all_displays(self):
"""show forwards buffer to all displays."""
mock_display1 = MagicMock()
mock_display2 = MagicMock()
multi = MultiDisplay([mock_display1, mock_display2])
buffer = ["line1", "line2"]
multi.show(buffer)
mock_display1.show.assert_called_once_with(buffer)
mock_display2.show.assert_called_once_with(buffer)
def test_clear_forwards_to_all_displays(self):
"""clear forwards to all displays."""
mock_display1 = MagicMock()
mock_display2 = MagicMock()
multi = MultiDisplay([mock_display1, mock_display2])
multi.clear()
mock_display1.clear.assert_called_once()
mock_display2.clear.assert_called_once()
def test_cleanup_forwards_to_all_displays(self):
"""cleanup forwards to all displays."""
mock_display1 = MagicMock()
mock_display2 = MagicMock()
multi = MultiDisplay([mock_display1, mock_display2])
multi.cleanup()
mock_display1.cleanup.assert_called_once()
mock_display2.cleanup.assert_called_once()
def test_empty_displays_list(self):
"""handles empty displays list gracefully."""
multi = MultiDisplay([])
multi.init(80, 24)
multi.show(["test"])
multi.clear()
multi.cleanup()

124
tests/test_effects_controller.py
View File

@@ -5,8 +5,10 @@ Tests for engine.effects.controller module.
from unittest.mock import MagicMock, patch
from engine.effects.controller import (
_format_stats,
handle_effects_command,
set_effect_chain_ref,
show_effects_menu,
)
@@ -92,6 +94,29 @@ class TestHandleEffectsCommand:
assert "Reordered pipeline" in result
mock_chain_instance.reorder.assert_called_once_with(["noise", "fade"])
def test_reorder_failure(self):
"""reorder returns error on failure."""
with patch("engine.effects.controller.get_registry") as mock_registry:
mock_registry.return_value.list_all.return_value = {}
with patch("engine.effects.controller._get_effect_chain") as mock_chain:
mock_chain_instance = MagicMock()
mock_chain_instance.reorder.return_value = False
mock_chain.return_value = mock_chain_instance
result = handle_effects_command("/effects reorder bad")
assert "Failed to reorder" in result
def test_unknown_effect(self):
"""unknown effect returns error."""
with patch("engine.effects.controller.get_registry") as mock_registry:
mock_registry.return_value.list_all.return_value = {}
result = handle_effects_command("/effects unknown on")
assert "Unknown effect" in result
def test_unknown_command(self):
"""unknown command returns error."""
result = handle_effects_command("/unknown")
@@ -102,6 +127,105 @@ class TestHandleEffectsCommand:
result = handle_effects_command("not a command")
assert "Unknown command" in result
def test_invalid_intensity_value(self):
"""invalid intensity value returns error."""
with patch("engine.effects.controller.get_registry") as mock_registry:
mock_plugin = MagicMock()
mock_registry.return_value.get.return_value = mock_plugin
mock_registry.return_value.list_all.return_value = {"noise": mock_plugin}
result = handle_effects_command("/effects noise intensity bad")
assert "Invalid intensity" in result
def test_missing_action(self):
"""missing action returns usage."""
with patch("engine.effects.controller.get_registry") as mock_registry:
mock_plugin = MagicMock()
mock_registry.return_value.get.return_value = mock_plugin
mock_registry.return_value.list_all.return_value = {"noise": mock_plugin}
result = handle_effects_command("/effects noise")
assert "Usage" in result
def test_stats_command(self):
"""stats command returns formatted stats."""
with patch("engine.effects.controller.get_monitor") as mock_monitor:
mock_monitor.return_value.get_stats.return_value = {
"frame_count": 100,
"pipeline": {"avg_ms": 1.5, "min_ms": 1.0, "max_ms": 2.0},
"effects": {},
}
result = handle_effects_command("/effects stats")
assert "Performance Stats" in result
def test_list_only_effects(self):
"""list command works with just /effects."""
with patch("engine.effects.controller.get_registry") as mock_registry:
mock_plugin = MagicMock()
mock_plugin.config.enabled = False
mock_plugin.config.intensity = 0.5
mock_registry.return_value.list_all.return_value = {"noise": mock_plugin}
with patch("engine.effects.controller._get_effect_chain") as mock_chain:
mock_chain.return_value = None
result = handle_effects_command("/effects")
assert "noise: OFF" in result
class TestShowEffectsMenu:
"""Tests for show_effects_menu function."""
def test_returns_formatted_menu(self):
"""returns formatted effects menu."""
with patch("engine.effects.controller.get_registry") as mock_registry:
mock_plugin = MagicMock()
mock_plugin.config.enabled = True
mock_plugin.config.intensity = 0.75
mock_registry.return_value.list_all.return_value = {"noise": mock_plugin}
with patch("engine.effects.controller._get_effect_chain") as mock_chain:
mock_chain_instance = MagicMock()
mock_chain_instance.get_order.return_value = ["noise"]
mock_chain.return_value = mock_chain_instance
result = show_effects_menu()
assert "EFFECTS MENU" in result
assert "noise" in result
class TestFormatStats:
"""Tests for _format_stats function."""
def test_returns_error_when_no_monitor(self):
"""returns error when monitor unavailable."""
with patch("engine.effects.controller.get_monitor") as mock_monitor:
mock_monitor.return_value.get_stats.return_value = {"error": "No data"}
result = _format_stats()
assert "No data" in result
def test_formats_pipeline_stats(self):
"""formats pipeline stats correctly."""
with patch("engine.effects.controller.get_monitor") as mock_monitor:
mock_monitor.return_value.get_stats.return_value = {
"frame_count": 50,
"pipeline": {"avg_ms": 2.5, "min_ms": 2.0, "max_ms": 3.0},
"effects": {"noise": {"avg_ms": 0.5, "min_ms": 0.4, "max_ms": 0.6}},
}
result = _format_stats()
assert "Pipeline" in result
assert "noise" in result
class TestSetEffectChainRef:
"""Tests for set_effect_chain_ref function."""

123
tests/test_sixel.py Normal file
View File

@@ -0,0 +1,123 @@
"""
Tests for engine.display.backends.sixel module.
"""
from unittest.mock import MagicMock, patch
class TestSixelDisplay:
"""Tests for SixelDisplay class."""
def test_init_stores_dimensions(self):
"""init stores dimensions."""
from engine.display.backends.sixel import SixelDisplay
display = SixelDisplay()
display.init(80, 24)
assert display.width == 80
assert display.height == 24
def test_init_custom_cell_size(self):
"""init accepts custom cell size."""
from engine.display.backends.sixel import SixelDisplay
display = SixelDisplay(cell_width=12, cell_height=18)
assert display.cell_width == 12
assert display.cell_height == 18
def test_show_handles_empty_buffer(self):
"""show handles empty buffer gracefully."""
from engine.display.backends.sixel import SixelDisplay
display = SixelDisplay()
display.init(80, 24)
with patch("engine.display.backends.sixel._encode_sixel") as mock_encode:
mock_encode.return_value = ""
display.show([])
def test_show_handles_pil_import_error(self):
"""show gracefully handles missing PIL."""
from engine.display.backends.sixel import SixelDisplay
display = SixelDisplay()
display.init(80, 24)
with patch.dict("sys.modules", {"PIL": None}):
display.show(["test line"])
def test_clear_sends_escape_sequence(self):
"""clear sends clear screen escape sequence."""
from engine.display.backends.sixel import SixelDisplay
display = SixelDisplay()
with patch("sys.stdout") as mock_stdout:
display.clear()
mock_stdout.buffer.write.assert_called()
def test_cleanup_does_nothing(self):
"""cleanup does nothing."""
from engine.display.backends.sixel import SixelDisplay
display = SixelDisplay()
display.cleanup()
class TestSixelAnsiParsing:
"""Tests for ANSI parsing in SixelDisplay."""
def test_parse_empty_string(self):
"""handles empty string."""
from engine.display.backends.sixel import _parse_ansi
result = _parse_ansi("")
assert len(result) > 0
def test_parse_plain_text(self):
"""parses plain text without ANSI codes."""
from engine.display.backends.sixel import _parse_ansi
result = _parse_ansi("hello world")
assert len(result) == 1
text, fg, bg, bold = result[0]
assert text == "hello world"
def test_parse_with_color_codes(self):
"""parses ANSI color codes."""
from engine.display.backends.sixel import _parse_ansi
result = _parse_ansi("\033[31mred\033[0m")
assert len(result) == 2
def test_parse_with_bold(self):
"""parses bold codes."""
from engine.display.backends.sixel import _parse_ansi
result = _parse_ansi("\033[1mbold\033[0m")
assert len(result) == 2
def test_parse_256_color(self):
"""parses 256 color codes."""
from engine.display.backends.sixel import _parse_ansi
result = _parse_ansi("\033[38;5;196mred\033[0m")
assert len(result) == 2
class TestSixelEncoding:
"""Tests for Sixel encoding."""
def test_encode_empty_image(self):
"""handles empty image."""
from engine.display.backends.sixel import _encode_sixel
with patch("PIL.Image.Image") as mock_image:
mock_img_instance = MagicMock()
mock_img_instance.convert.return_value = mock_img_instance
mock_img_instance.size = (0, 0)
mock_img_instance.load.return_value = {}
mock_image.return_value = mock_img_instance
result = _encode_sixel(mock_img_instance)
assert result == ""