def test_batch_up_image_loader(image):
batch_size = 3
dataset = ()
loader = DataLoader(dataset, batch_size=batch_size)
batched_up_image = utils.batch_up_image(image, loader=loader)
assert extract_batch_size(batched_up_image) == batch_size
def test_batch_up_image_loader_with_batch_sampler_no_batch_size(
subtests, image):
class NoBatchSizeBatchSampler(BatchSampler):
def __init__(self):
pass
class WrongTypeBatchSizeBatchSampler(BatchSampler):
def __init__(self):
self.batch_size = None
with subtests.test("no batch_size"):
loader = DataLoader((), batch_sampler=NoBatchSizeBatchSampler())
with pytest.raises(RuntimeError):
utils.batch_up_image(image, loader=loader)
with subtests.test("wrong type batch_size"):
loader = DataLoader((), batch_sampler=WrongTypeBatchSizeBatchSampler())
with pytest.raises(RuntimeError):
utils.batch_up_image(image, loader=loader)
def test_batch_up_image_loader_with_batch_sampler(image):
batch_size = 3
dataset = ()
batch_sampler = BatchSampler(SequentialSampler(dataset),
batch_size,
drop_last=False)
loader = DataLoader(dataset, batch_sampler=batch_sampler)
batched_up_image = utils.batch_up_image(image, loader=loader)
assert extract_batch_size(batched_up_image) == batch_size
def test_training_criterion_style_image(
preprocessor_mocks,
optimizer_mocks,
style_transforms_mocks,
transformer_mocks,
training,
image_loader,
style_image,
):
_, preprocessor = preprocessor_mocks
_, style_transform = style_transforms_mocks
args, _, _ = training(image_loader, style_image)
criterion = args[2]
ptu.assert_allclose(
criterion.style_loss.target_image,
preprocessor(
style_transform(
batch_up_image(style_image, image_loader.batch_size))),
)
def test_batch_up_image_missing_arg(image):
with pytest.raises(RuntimeError):
utils.batch_up_image(image)
def test_batch_up_image_with_batched_image(batch_image):
with pytest.raises(RuntimeError):
utils.batch_up_image(batch_image, 2)
def test_batch_up_image_with_single_image(image):
batch_size = 3
batched_up_image = utils.batch_up_image(make_single_image(image),
batch_size)
assert extract_batch_size(batched_up_image) == batch_size
def test_batch_up_image(image):
batch_size = 3
batched_up_image = utils.batch_up_image(image, batch_size)
assert extract_batch_size(batched_up_image) == batch_size