Files
wifi-densepose/v1/tests/unit/test_phase_sanitizer.py
Claude 5cc21987c5 fix: Complete ADR-011 mock elimination and fix all test stubs
Production code:
- pose_service.py: real uptime tracking (_start_time), real calibration
  state machine (_calibration_in_progress, _calibration_id), proper
  get_calibration_status() using elapsed time, uptime in health_check()
- health.py: _APP_START_TIME module constant for real uptime_seconds
- dependencies.py: remove TODO, document JWT config requirement clearly

ADR-017 status: Proposed → Accepted (all 7 integrations complete)

Test fixes (170 unit tests — 0 failures):
- Fix hardcoded /workspaces/wifi-densepose devcontainer paths in 4 files;
  replaced with os.path relative to __file__
- test_csi_extractor_tdd/standalone: update ESP32 fixture to provide
  correct 3×56 amplitude+phase values (was only 3 values)
- test_csi_standalone/tdd_complete: Atheros tests now expect
  CSIExtractionError (implementation raises it correctly)
- test_router_interface_tdd: register module in sys.modules so
  patch('src.hardware.router_interface...') resolves; fix
  test_should_parse_csi_response to expect RouterConnectionError
- test_csi_processor: rewrite to use actual preprocess_csi_data /
  extract_features API with proper CSIData fixtures; fix constructor
- test_phase_sanitizer: fix constructor (requires config), rename
  sanitize() → sanitize_phase(), fix empty-data fixture (use 2D array),
  fix phase data to stay within [-π, π] validation range

Proof bundle: PASS — SHA-256 hash matches, no random patterns in prod code

https://claude.ai/code/session_01BSBAQJ34SLkiJy4A8SoiL4
2026-02-28 16:59:34 +00:00

96 lines
3.8 KiB
Python

import pytest
import numpy as np
import time
from unittest.mock import Mock, patch
from src.core.phase_sanitizer import PhaseSanitizer, PhaseSanitizationError
_SANITIZER_CONFIG = {
"unwrapping_method": "numpy",
"outlier_threshold": 3.0,
"smoothing_window": 5,
"enable_outlier_removal": True,
"enable_smoothing": True,
"enable_noise_filtering": True,
"noise_threshold": 0.1,
}
class TestPhaseSanitizer:
"""Test suite for Phase Sanitizer following London School TDD principles"""
@pytest.fixture
def mock_phase_data(self):
"""Generate synthetic phase data strictly within valid [-π, π] range"""
return np.array([
[0.1, 0.2, 0.4, 0.3, 0.5],
[-1.0, -0.1, 0.0, 0.1, 0.2],
[0.0, 0.1, 0.2, 0.3, 0.4],
])
@pytest.fixture
def phase_sanitizer(self):
"""Create Phase Sanitizer instance for testing"""
return PhaseSanitizer(config=_SANITIZER_CONFIG)
def test_unwrap_phase_removes_discontinuities(self, phase_sanitizer):
"""Test that phase unwrapping removes 2π discontinuities"""
# Create data with explicit 2π jump
jumpy = np.array([[0.1, 0.2, 0.2 + 2 * np.pi, 0.4, 0.5]])
result = phase_sanitizer.unwrap_phase(jumpy)
assert result is not None
assert isinstance(result, np.ndarray)
assert result.shape == jumpy.shape
phase_diffs = np.abs(np.diff(result[0]))
assert np.all(phase_diffs < np.pi) # No jumps larger than π
def test_remove_outliers_returns_same_shape(self, phase_sanitizer, mock_phase_data):
"""Test that outlier removal preserves array shape"""
result = phase_sanitizer.remove_outliers(mock_phase_data)
assert result is not None
assert isinstance(result, np.ndarray)
assert result.shape == mock_phase_data.shape
def test_smooth_phase_reduces_noise(self, phase_sanitizer, mock_phase_data):
"""Test that phase smoothing reduces noise while preserving trends"""
rng = np.random.default_rng(42)
noisy_data = mock_phase_data + rng.normal(0, 0.05, mock_phase_data.shape)
# Clip to valid range after adding noise
noisy_data = np.clip(noisy_data, -np.pi, np.pi)
result = phase_sanitizer.smooth_phase(noisy_data)
assert result is not None
assert isinstance(result, np.ndarray)
assert result.shape == noisy_data.shape
assert np.var(result) <= np.var(noisy_data)
def test_sanitize_raises_for_1d_input(self, phase_sanitizer):
"""Sanitizer should raise PhaseSanitizationError on 1D input"""
with pytest.raises(PhaseSanitizationError, match="Phase data must be 2D array"):
phase_sanitizer.sanitize_phase(np.array([0.1, 0.2, 0.3]))
def test_sanitize_raises_for_empty_2d_input(self, phase_sanitizer):
"""Sanitizer should raise PhaseSanitizationError on empty 2D input"""
with pytest.raises(PhaseSanitizationError, match="Phase data cannot be empty"):
phase_sanitizer.sanitize_phase(np.empty((0, 5)))
def test_sanitize_full_pipeline_integration(self, phase_sanitizer, mock_phase_data):
"""Test that full sanitization pipeline works correctly"""
result = phase_sanitizer.sanitize_phase(mock_phase_data)
assert result is not None
assert isinstance(result, np.ndarray)
assert result.shape == mock_phase_data.shape
assert np.all(np.isfinite(result))
def test_sanitize_performance_requirement(self, phase_sanitizer, mock_phase_data):
"""Test that phase sanitization meets performance requirements (<5ms)"""
start_time = time.perf_counter()
phase_sanitizer.sanitize_phase(mock_phase_data)
processing_time = time.perf_counter() - start_time
assert processing_time < 0.005 # < 5 ms