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4948993 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 | """Tests for PoseVisualizer — no GPU, no model downloads."""
import numpy as np
import pytest
from formscout.types import IngestResult, Pose2DResult
def _make_ingest(n=5, h=480, w=640, fps=30.0):
frames = [np.zeros((h, w, 3), dtype=np.uint8) for _ in range(n)]
return IngestResult(frames=frames, fps=fps, duration=n / fps, n_people=1, width=w, height=h)
def _make_pose(n=5, w=640, h=480):
"""Synthetic Pose2DResult: 17 joints at fixed pixel positions, conf=0.9."""
kps_per_frame = []
for i in range(n):
frame_kps = {}
for j in range(17):
frame_kps[j] = {
"x": float(50 + j * 30 + i * 2),
"y": float(100 + j * 20),
"conf": 0.9,
}
kps_per_frame.append(frame_kps)
return Pose2DResult(keypoints=kps_per_frame, fps=30.0, confidence=0.9, notes="")
class TestComputeJointVelocity:
def test_returns_17_joints(self):
from formscout.agents.visualizer import compute_joint_velocity
pose = _make_pose(n=5)
result = compute_joint_velocity(pose.keypoints, fps=30.0)
assert len(result) == 17
def test_each_list_has_n_frames(self):
from formscout.agents.visualizer import compute_joint_velocity
pose = _make_pose(n=5)
result = compute_joint_velocity(pose.keypoints, fps=30.0)
for joint_idx, speeds in result.items():
assert len(speeds) == 5, f"joint {joint_idx} has {len(speeds)} speeds, expected 5"
def test_speeds_are_non_negative(self):
from formscout.agents.visualizer import compute_joint_velocity
pose = _make_pose(n=5)
result = compute_joint_velocity(pose.keypoints, fps=30.0)
for speeds in result.values():
assert all(s >= 0.0 for s in speeds)
def test_missing_keypoints_give_zero_speed(self):
from formscout.agents.visualizer import compute_joint_velocity
empty_kps = [{} for _ in range(5)]
result = compute_joint_velocity(empty_kps, fps=30.0)
for speeds in result.values():
assert all(s == 0.0 for s in speeds)
class TestDrawSkeleton:
def test_skeleton_draws_without_error(self):
from formscout.agents.visualizer import PoseVisualizer
vis = PoseVisualizer()
frame = np.zeros((480, 640, 3), dtype=np.uint8)
kps = {j: {"x": float(50 + j * 30), "y": float(100 + j * 20), "conf": 0.9}
for j in range(17)}
result = vis._draw_skeleton(frame.copy(), kps)
assert result.shape == frame.shape
assert not np.array_equal(result, frame)
def test_low_confidence_keypoints_not_drawn(self):
from formscout.agents.visualizer import PoseVisualizer
vis = PoseVisualizer()
frame = np.zeros((480, 640, 3), dtype=np.uint8)
kps = {j: {"x": float(50 + j * 30), "y": 100.0, "conf": 0.1} for j in range(17)}
result = vis._draw_skeleton(frame.copy(), kps)
assert np.array_equal(result, frame)
class TestDrawTrails:
def test_trails_draw_without_error(self):
from formscout.agents.visualizer import PoseVisualizer, TRAIL_LENGTH
from collections import deque
vis = PoseVisualizer()
frame = np.zeros((480, 640, 3), dtype=np.uint8)
trail_history = {
0: deque([(100 + i * 5, 200 + i * 3) for i in range(5)], maxlen=TRAIL_LENGTH)
}
result = vis._draw_trails(frame.copy(), trail_history)
assert result.shape == frame.shape
assert not np.array_equal(result, frame)
def test_short_trail_no_crash(self):
from formscout.agents.visualizer import PoseVisualizer, TRAIL_LENGTH
from collections import deque
vis = PoseVisualizer()
frame = np.zeros((480, 640, 3), dtype=np.uint8)
trail_history = {0: deque([(100, 200)], maxlen=TRAIL_LENGTH)}
result = vis._draw_trails(frame.copy(), trail_history)
assert np.array_equal(result, frame)
class TestDrawVelocityArrows:
def test_arrows_draw_without_error(self):
from formscout.agents.visualizer import PoseVisualizer
vis = PoseVisualizer()
frame = np.zeros((480, 640, 3), dtype=np.uint8)
kps = {j: {"x": float(50 + j * 30), "y": float(100 + j * 20), "conf": 0.9}
for j in range(17)}
prev_kps = {j: {"x": float(48 + j * 30), "y": float(98 + j * 20), "conf": 0.9}
for j in range(17)}
velocities = {j: [0.0] * 5 for j in range(17)}
velocities[5] = [0.0, 10.0, 50.0, 80.0, 120.0]
result = vis._draw_velocity_arrows(frame.copy(), kps, prev_kps, velocities, frame_idx=4)
assert result.shape == frame.shape
def test_no_prev_kps_no_crash(self):
from formscout.agents.visualizer import PoseVisualizer
vis = PoseVisualizer()
frame = np.zeros((480, 640, 3), dtype=np.uint8)
kps = {j: {"x": float(50 + j * 30), "y": 100.0, "conf": 0.9} for j in range(17)}
velocities = {j: [50.0] * 5 for j in range(17)}
result = vis._draw_velocity_arrows(frame.copy(), kps, None, velocities, frame_idx=0)
assert result.shape == frame.shape
class TestRenderVideo:
def test_creates_mp4_file(self, tmp_path):
from formscout.agents.visualizer import PoseVisualizer
vis = PoseVisualizer()
ingest = _make_ingest(n=5)
pose = _make_pose(n=5)
out = str(tmp_path / "out.mp4")
result = vis.render_video(ingest, pose, {"skeleton"}, out)
assert result is not None
import os
assert os.path.exists(result)
assert os.path.getsize(result) > 0
def test_empty_layers_returns_none(self, tmp_path):
from formscout.agents.visualizer import PoseVisualizer
vis = PoseVisualizer()
out = str(tmp_path / "out.mp4")
result = vis.render_video(_make_ingest(), _make_pose(), set(), out)
assert result is None
def test_no_detections_returns_none(self, tmp_path):
from formscout.agents.visualizer import PoseVisualizer
vis = PoseVisualizer()
ingest = _make_ingest(n=5)
empty_pose = Pose2DResult(
keypoints=[{} for _ in range(5)], fps=30.0, confidence=0.0, notes=""
)
out = str(tmp_path / "out.mp4")
result = vis.render_video(ingest, empty_pose, {"skeleton"}, out)
assert result is None
def test_last_velocities_set_after_render(self, tmp_path):
from formscout.agents.visualizer import PoseVisualizer
vis = PoseVisualizer()
out = str(tmp_path / "out.mp4")
vis.render_video(_make_ingest(n=5), _make_pose(n=5), {"skeleton"}, out)
assert len(vis.last_velocities) == 17
class TestBuildVelocitySummary:
def test_returns_markdown_table(self):
from formscout.agents.visualizer import build_velocity_summary, compute_joint_velocity
pose = _make_pose(n=10)
vels = compute_joint_velocity(pose.keypoints, fps=30.0)
result = build_velocity_summary(pose.keypoints, vels)
assert "|" in result
assert any(name in result for name in ["knee", "shoulder", "hip", "ankle"])
def test_empty_keypoints_returns_empty_string(self):
from formscout.agents.visualizer import build_velocity_summary
empty_kps = [{} for _ in range(5)]
vels = {j: [0.0] * 5 for j in range(17)}
result = build_velocity_summary(empty_kps, vels)
assert result == ""
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