import io import os import shutil import sys import tempfile import pytest from PIL import Image, ImageDraw, ImagePalette, UnidentifiedImageError from .helper import ( assert_image_equal, assert_image_equal_tofile, assert_image_similar_tofile, assert_not_all_same, hopper, is_win32, mark_if_feature_version, skip_unless_feature, ) class TestImage: def test_image_modes_success(self): for mode in [ "1", "P", "PA", "L", "LA", "La", "F", "I", "I;16", "I;16L", "I;16B", "I;16N", "RGB", "RGBX", "RGBA", "RGBa", "CMYK", "YCbCr", "LAB", "HSV", ]: Image.new(mode, (1, 1)) def test_image_modes_fail(self): for mode in [ "", "bad", "very very long", "BGR;15", "BGR;16", "BGR;24", "BGR;32", ]: with pytest.raises(ValueError) as e: Image.new(mode, (1, 1)) assert str(e.value) == "unrecognized image mode" def test_exception_inheritance(self): assert issubclass(UnidentifiedImageError, OSError) def test_sanity(self): im = Image.new("L", (100, 100)) assert repr(im)[:45] == "