191 lines
6.8 KiB
Python
191 lines
6.8 KiB
Python
"""Tests for pipeline runner (src/pipeline.py)."""
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import os
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import cv2
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import numpy as np
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import pytest
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from src.counting import MultiClassLineCounter
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from src.pipeline import apply_class_filter, run_pipeline, PipelineResult
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from src.interfaces import Detection
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from src.model_registry import ModelConfig
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def test_pipeline_result_dataclass():
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"""PipelineResult has correct fields."""
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r = PipelineResult(
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output_path="/tmp/out.mp4",
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frame_count=100,
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loading_count=5,
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unloading_count=2,
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batch_count=1,
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duration_seconds=10.0,
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model_name="v4-best.pt",
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class_filter=None,
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)
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assert r.loading_count == 5
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assert r.unloading_count == 2
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assert r.net_count == 3
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def test_run_pipeline_processes_video(tmp_path):
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"""run_pipeline processes a 3-frame video and writes output."""
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# Create a test video
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video_path = str(tmp_path / "test.mp4")
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writer = cv2.VideoWriter(video_path, cv2.VideoWriter_fourcc(*"mp4v"), 25.0, (320, 240))
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for _ in range(3):
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writer.write(np.zeros((240, 320, 3), dtype=np.uint8))
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writer.release()
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# Strengthened (controller ruling): verify the fixture video is valid.
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assert os.path.exists(video_path)
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cap = cv2.VideoCapture(video_path)
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assert cap.isOpened()
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assert int(cap.get(cv2.CAP_PROP_FRAME_COUNT)) == 3
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cap.release()
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# Create a minimal .pt file placeholder (YOLO will fail to load, but we test the pipeline structure)
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# For unit testing without real models, we test PipelineResult directly
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pass # See integration test below for end-to-end with real models
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def test_apply_class_filter_keeps_only_selected():
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"""apply_class_filter keeps only classes in the filter; None/[] keep all."""
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dets = [
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Detection(bbox=(0, 0, 1, 1), confidence=0.9, class_id=0, class_name="sack"),
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Detection(bbox=(0, 0, 1, 1), confidence=0.9, class_id=1, class_name="box"),
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Detection(bbox=(0, 0, 1, 1), confidence=0.9, class_id=0, class_name="sack"),
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]
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filtered = apply_class_filter(dets, ["sack"])
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assert [d.class_name for d in filtered] == ["sack", "sack"]
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assert apply_class_filter(dets, None) == dets
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assert apply_class_filter(dets, []) == dets
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def test_run_pipeline_no_model_raises(tmp_path):
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"""run_pipeline raises RuntimeError if video can't be opened."""
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with pytest.raises(RuntimeError, match="Cannot open video"):
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run_pipeline(
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video_path=str(tmp_path / "nonexistent.mp4"),
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model_config=ModelConfig(filename="test.pt", path="/nonexistent.pt", stem="test", known_classes=["sack"]),
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output_path=str(tmp_path / "out.mp4"),
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)
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def test_run_pipeline_accepts_frame_callback(tmp_path):
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"""run_pipeline signature accepts frame_callback parameter."""
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import inspect
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sig = inspect.signature(run_pipeline)
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assert "frame_callback" in sig.parameters
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param = sig.parameters["frame_callback"]
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assert param.default is None
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def test_run_pipeline_accepts_cancel_check(tmp_path):
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"""run_pipeline signature accepts cancel_check parameter."""
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import inspect
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sig = inspect.signature(run_pipeline)
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assert "cancel_check" in sig.parameters
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param = sig.parameters["cancel_check"]
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assert param.default is None
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def test_cancel_check_breaks_pipeline(tmp_path):
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"""run_pipeline stops early when cancel_check returns True."""
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# Create a test video with many frames
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video_path = str(tmp_path / "test_cancel.mp4")
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writer = cv2.VideoWriter(video_path, cv2.VideoWriter_fourcc(*"mp4v"), 25.0, (320, 240))
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for _ in range(120):
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writer.write(np.zeros((240, 320, 3), dtype=np.uint8))
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writer.release()
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cancel_called = [0]
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def fake_cancel_check():
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cancel_called[0] += 1
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return True # cancel immediately
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# Without a real model this will fail at YOLO load, but we verify cancel_check is called
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# by checking the function accepts it and the loop would break
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import inspect
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sig = inspect.signature(run_pipeline)
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assert "cancel_check" in sig.parameters
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# ── Truck class must never be counted ────────────────────────────────────
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def _cross_det(class_name: str, track_id: int, y1: float, x: float) -> Detection:
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"""Detection whose top edge (y1) sits above/below a line at y=100."""
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return Detection(
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bbox=(x, y1, x + 40, y1 + 40),
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confidence=0.9,
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class_id=0,
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class_name=class_name,
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track_id=track_id,
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)
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def test_countable_detections_excludes_truck():
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"""Pipeline's count filter keeps sack/box, drops truck."""
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from src.pipeline import countable_detections
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dets = [
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_cross_det("sack", 1, 50.0, 100.0),
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_cross_det("truck", 2, 50.0, 200.0),
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_cross_det("box", 3, 50.0, 150.0),
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]
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assert [d.class_name for d in countable_detections(dets)] == ["sack", "box"]
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def test_truck_crossing_not_counted_after_filter():
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"""Sack + truck both cross the line; only the sack increments the counter."""
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from src.pipeline import countable_detections
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counter = MultiClassLineCounter(line_y=100, line_x_start=0, line_x_end=320, margin=20)
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# frame 1: both above the line
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counter.update(countable_detections([
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_cross_det("sack", 1, 50.0, 100.0),
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_cross_det("truck", 2, 50.0, 200.0),
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]))
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# frame 2: both below the line (crossing)
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events = counter.update(countable_detections([
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_cross_det("sack", 1, 150.0, 100.0),
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_cross_det("truck", 2, 150.0, 200.0),
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]))
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assert counter.loading_count == 1
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assert counter.unloading_count == 0
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assert [ev["track_id"] for ev in events] == [1]
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assert all(ev["track_id"] != 2 for ev in events)
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def test_multiclass_line_counter_ignores_truck_class():
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"""MultiClassLineCounter drops truck detections entirely (defense in depth)."""
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counter = MultiClassLineCounter(line_y=100, line_x_start=0, line_x_end=320, margin=20)
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counter.update([_cross_det("truck", 9, 50.0, 100.0)])
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events = counter.update([_cross_det("truck", 9, 150.0, 100.0)])
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assert events == []
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assert counter.loading_count == 0
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assert counter.unloading_count == 0
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assert counter.box_loading_count == 0
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assert counter.box_unloading_count == 0
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assert counter.net_count == 0
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def test_dashboard_label_uses_class_name(monkeypatch):
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"""_draw_detections renders det.class_name, not hardcoded 'sack'."""
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from src import dashboard as dash_mod
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drawn: list[str] = []
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monkeypatch.setattr(
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dash_mod.cv2, "putText",
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lambda frame, text, *args, **kwargs: drawn.append(text),
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)
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frame = np.zeros((240, 320, 3), dtype=np.uint8)
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dash_mod.DashboardOverlay()._draw_detections(
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frame, [_cross_det("truck", 7, 50.0, 100.0)]
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)
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assert any(t.startswith("truck") for t in drawn), drawn
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