def test_validator_coercion_PIL(validator: ImageUriValidator):
# Single pixel black png (http://png-pixel.com/)
img_path = '_plotly_utils/tests/resources/1x1-black.png'
with open(img_path, 'rb') as f:
hex_bytes = base64.b64encode(f.read()).decode('ascii')
expected_uri = 'data:image/png;base64,' + hex_bytes
img = Image.open(img_path)
coerce_val = validator.validate_coerce(img)
assert coerce_val == expected_uri
def test_validator_acceptance(val, validator: ImageUriValidator):
assert validator.validate_coerce(val) == val