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# Ultralytics YOLO 🚀, AGPL-3.0 license
import shutil
from copy import copy
from pathlib import Path
import cv2
import numpy as np
import pytest
import torch
from PIL import Image
from torchvision.transforms import ToTensor
from ultralytics import RTDETR, YOLO
from ultralytics.data.build import load_inference_source
from ultralytics.utils import ASSETS, DEFAULT_CFG, LINUX, ONLINE, ROOT, SETTINGS
from ultralytics.utils.downloads import download
from ultralytics.utils.torch_utils import TORCH_1_9
WEIGHTS_DIR = Path(SETTINGS['weights_dir'])
MODEL = WEIGHTS_DIR / 'path with spaces' / 'yolov8n.pt' # test spaces in path
CFG = 'yolov8n.yaml'
SOURCE = ASSETS / 'bus.jpg'
TMP = (ROOT / '../tests/tmp').resolve() # temp directory for test files
def test_model_forward():
model = YOLO(CFG)
model(SOURCE, imgsz=32, augment=True)
def test_model_methods():
model = YOLO(MODEL)
model.info(verbose=True, detailed=True)
model = model.reset_weights()
model = model.load(MODEL)
model.to('cpu')
_ = model.names
_ = model.device
def test_model_fuse():
model = YOLO(MODEL)
model.fuse()
def test_predict_dir():
model = YOLO(MODEL)
model(source=ASSETS, imgsz=32)
def test_predict_img():
model = YOLO(MODEL)
seg_model = YOLO(WEIGHTS_DIR / 'yolov8n-seg.pt')
cls_model = YOLO(WEIGHTS_DIR / 'yolov8n-cls.pt')
pose_model = YOLO(WEIGHTS_DIR / 'yolov8n-pose.pt')
im = cv2.imread(str(SOURCE))
assert len(model(source=Image.open(SOURCE), save=True, verbose=True, imgsz=32)) == 1 # PIL
assert len(model(source=im, save=True, save_txt=True, imgsz=32)) == 1 # ndarray
assert len(model(source=[im, im], save=True, save_txt=True, imgsz=32)) == 2 # batch
assert len(list(model(source=[im, im], save=True, stream=True, imgsz=32))) == 2 # stream
assert len(model(torch.zeros(320, 640, 3).numpy(), imgsz=32)) == 1 # tensor to numpy
batch = [
str(SOURCE), # filename
Path(SOURCE), # Path
'https://ultralytics.com/images/zidane.jpg' if ONLINE else SOURCE, # URI
cv2.imread(str(SOURCE)), # OpenCV
Image.open(SOURCE), # PIL
np.zeros((320, 640, 3))] # numpy
assert len(model(batch, imgsz=32)) == len(batch) # multiple sources in a batch
# Test tensor inference
im = cv2.imread(str(SOURCE)) # OpenCV
t = cv2.resize(im, (32, 32))
t = ToTensor()(t)
t = torch.stack([t, t, t, t])
results = model(t, imgsz=32)
assert len(results) == t.shape[0]
results = seg_model(t, imgsz=32)
assert len(results) == t.shape[0]
results = cls_model(t, imgsz=32)
assert len(results) == t.shape[0]
results = pose_model(t, imgsz=32)
assert len(results) == t.shape[0]
def test_predict_grey_and_4ch():
# Convert SOURCE to greyscale and 4-ch
im = Image.open(SOURCE)
source_greyscale = Path(f'{SOURCE.parent / SOURCE.stem}_greyscale.jpg')
source_rgba = Path(f'{SOURCE.parent / SOURCE.stem}_4ch.png')
im.convert('L').save(source_greyscale) # greyscale
im.convert('RGBA').save(source_rgba) # 4-ch PNG with alpha
# Inference
model = YOLO(MODEL)
for f in source_rgba, source_greyscale:
for source in Image.open(f), cv2.imread(str(f)), f:
model(source, save=True, verbose=True, imgsz=32)
# Cleanup
source_greyscale.unlink()
source_rgba.unlink()
@pytest.mark.skipif(not ONLINE, reason='environment is offline')
def test_track_stream():
# Test YouTube streaming inference (short 10 frame video) with non-default ByteTrack tracker
# imgsz=160 required for tracking for higher confidence and better matches
import yaml
model = YOLO(MODEL)
model.predict('https://youtu.be/G17sBkb38XQ', imgsz=96)
model.track('https://ultralytics.com/assets/decelera_portrait_min.mov', imgsz=160, tracker='bytetrack.yaml')
model.track('https://ultralytics.com/assets/decelera_portrait_min.mov', imgsz=160, tracker='botsort.yaml')
# Test Global Motion Compensation (GMC) methods
for gmc in 'orb', 'sift', 'ecc':
with open(ROOT / 'cfg/trackers/botsort.yaml') as f:
data = yaml.safe_load(f)
tracker = TMP / f'botsort-{gmc}.yaml'
data['gmc_method'] = gmc
with open(tracker, 'w') as f:
yaml.safe_dump(data, f)
model.track('https://ultralytics.com/assets/decelera_portrait_min.mov', imgsz=160, tracker=tracker)
def test_val():
model = YOLO(MODEL)
model.val(data='coco8.yaml', imgsz=32)
def test_train_scratch():
model = YOLO(CFG)
model.train(data='coco8.yaml', epochs=2, imgsz=32, cache='disk', batch=-1, close_mosaic=1)
model(SOURCE)
def test_train_pretrained():
model = YOLO(WEIGHTS_DIR / 'yolov8n-seg.pt')
model.train(data='coco8-seg.yaml', epochs=1, imgsz=32, cache='ram', copy_paste=0.5, mixup=0.5)
model(SOURCE)
def test_export_torchscript():
model = YOLO(MODEL)
f = model.export(format='torchscript')
YOLO(f)(SOURCE) # exported model inference
def test_export_onnx():
model = YOLO(MODEL)
f = model.export(format='onnx', dynamic=True)
YOLO(f)(SOURCE) # exported model inference
def test_export_openvino():
model = YOLO(MODEL)
f = model.export(format='openvino')
YOLO(f)(SOURCE) # exported model inference
def test_export_coreml(): # sourcery skip: move-assign
model = YOLO(MODEL)
model.export(format='coreml', nms=True)
# if MACOS:
# YOLO(f)(SOURCE) # model prediction only supported on macOS
def test_export_tflite(enabled=False):
# TF suffers from install conflicts on Windows and macOS
if enabled and LINUX:
model = YOLO(MODEL)
f = model.export(format='tflite')
YOLO(f)(SOURCE)
def test_export_pb(enabled=False):
# TF suffers from install conflicts on Windows and macOS
if enabled and LINUX:
model = YOLO(MODEL)
f = model.export(format='pb')
YOLO(f)(SOURCE)
def test_export_paddle(enabled=False):
# Paddle protobuf requirements conflicting with onnx protobuf requirements
if enabled:
model = YOLO(MODEL)
model.export(format='paddle')
def test_export_ncnn(enabled=False):
model = YOLO(MODEL)
f = model.export(format='ncnn')
YOLO(f)(SOURCE) # exported model inference
def test_all_model_yamls():
for m in (ROOT / 'cfg' / 'models').rglob('*.yaml'):
if 'rtdetr' in m.name:
if TORCH_1_9: # torch<=1.8 issue - TypeError: __init__() got an unexpected keyword argument 'batch_first'
RTDETR(m.name)(SOURCE, imgsz=640)
else:
YOLO(m.name)
def test_workflow():
model = YOLO(MODEL)
model.train(data='coco8.yaml', epochs=1, imgsz=32)
model.val()
model.predict(SOURCE)
model.export(format='onnx') # export a model to ONNX format
def test_predict_callback_and_setup():
# Test callback addition for prediction
def on_predict_batch_end(predictor): # results -> List[batch_size]
path, im0s, _, _ = predictor.batch
im0s = im0s if isinstance(im0s, list) else [im0s]
bs = [predictor.dataset.bs for _ in range(len(path))]
predictor.results = zip(predictor.results, im0s, bs)
model = YOLO(MODEL)
model.add_callback('on_predict_batch_end', on_predict_batch_end)
dataset = load_inference_source(source=SOURCE)
bs = dataset.bs # noqa access predictor properties
results = model.predict(dataset, stream=True) # source already setup
for r, im0, bs in results:
print('test_callback', im0.shape)
print('test_callback', bs)
boxes = r.boxes # Boxes object for bbox outputs
print(boxes)
def test_results():
for m in 'yolov8n-pose.pt', 'yolov8n-seg.pt', 'yolov8n.pt', 'yolov8n-cls.pt':
model = YOLO(m)
results = model([SOURCE, SOURCE])
for r in results:
r = r.cpu().numpy()
r = r.to(device='cpu', dtype=torch.float32)
r.save_txt(txt_file='runs/tests/label.txt', save_conf=True)
r.save_crop(save_dir='runs/tests/crops/')
r.tojson(normalize=True)
r.plot(pil=True)
r.plot(conf=True, boxes=True)
print(r)
print(r.path)
for k in r.keys:
print(getattr(r, k))
@pytest.mark.skipif(not ONLINE, reason='environment is offline')
def test_data_utils():
# Test functions in ultralytics/data/utils.py
from ultralytics.data.utils import HUBDatasetStats, autosplit
from ultralytics.utils.downloads import zip_directory
# from ultralytics.utils.files import WorkingDirectory
# with WorkingDirectory(ROOT.parent / 'tests'):
download('https://github.com/ultralytics/hub/raw/master/example_datasets/coco8.zip', unzip=False)
shutil.move('coco8.zip', TMP)
stats = HUBDatasetStats(TMP / 'coco8.zip', task='detect')
stats.get_json(save=True)
stats.process_images()
autosplit(TMP / 'coco8')
zip_directory(TMP / 'coco8/images/val') # zip
@pytest.mark.skipif(not ONLINE, reason='environment is offline')
def test_data_converter():
# Test dataset converters
from ultralytics.data.converter import coco80_to_coco91_class, convert_coco
file = 'instances_val2017.json'
download(f'https://github.com/ultralytics/yolov5/releases/download/v1.0/{file}')
shutil.move(file, TMP)
convert_coco(labels_dir=TMP, use_segments=True, use_keypoints=False, cls91to80=True)
coco80_to_coco91_class()
def test_data_annotator():
from ultralytics.data.annotator import auto_annotate
auto_annotate(ASSETS, det_model='yolov8n.pt', sam_model='mobile_sam.pt', output_dir=TMP / 'auto_annotate_labels')
def test_events():
# Test event sending
from ultralytics.hub.utils import Events
events = Events()
events.enabled = True
cfg = copy(DEFAULT_CFG) # does not require deepcopy
cfg.mode = 'test'
events(cfg)
def test_utils_init():
from ultralytics.utils import get_git_branch, get_git_origin_url, get_ubuntu_version, is_github_actions_ci
get_ubuntu_version()
is_github_actions_ci()
get_git_origin_url()
get_git_branch()
def test_utils_checks():
from ultralytics.utils.checks import (check_imgsz, check_requirements, check_yolov5u_filename, git_describe,
print_args)
check_yolov5u_filename('yolov5n.pt')
# check_imshow(warn=True)
git_describe(ROOT)
check_requirements() # check requirements.txt
check_imgsz([600, 600], max_dim=1)
print_args()
def test_utils_benchmarks():
from ultralytics.utils.benchmarks import ProfileModels
ProfileModels(['yolov8n.yaml'], imgsz=32, min_time=1, num_timed_runs=3, num_warmup_runs=1).profile()
def test_utils_torchutils():
from ultralytics.nn.modules.conv import Conv
from ultralytics.utils.torch_utils import get_flops_with_torch_profiler, profile, time_sync
x = torch.randn(1, 64, 20, 20)
m = Conv(64, 64, k=1, s=2)
profile(x, [m], n=3)
get_flops_with_torch_profiler(m)
time_sync()
def test_utils_downloads():
from ultralytics.utils.downloads import get_google_drive_file_info
get_google_drive_file_info('https://drive.google.com/file/d/1cqT-cJgANNrhIHCrEufUYhQ4RqiWG_lJ/view?usp=drive_link')
def test_utils_ops():
from ultralytics.utils.ops import make_divisible
make_divisible(17, 8)
def test_utils_files():
from ultralytics.utils.files import file_age, file_date, get_latest_run, spaces_in_path
file_age(SOURCE)
file_date(SOURCE)
get_latest_run(ROOT / 'runs')
path = TMP / 'path/with spaces'
path.mkdir(parents=True, exist_ok=True)
with spaces_in_path(path) as new_path:
print(new_path)