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Merge pull request #2379 from radarhere/test

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Add tests for several Image operations
This commit is contained in:
Hugo 2017-01-29 12:56:53 +02:00 committed by GitHub
commit 7726296a93
5 changed files with 37 additions and 24 deletions
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10
Tests/test_image.py
View File

@ -305,6 +305,16 @@ class TestImage(PillowTestCase):
with self.assertRaises(ValueError):
Image.core.fill('RGB', (2,-2), (0,0,0))
def test_offset_not_implemented(self):
# Arrange
im = hopper()
# Act / Assert
self.assertRaises(NotImplementedError, lambda: im.offset(None))
def test_fromstring(self):
self.assertRaises(NotImplementedError, Image.fromstring)
if __name__ == '__main__':
unittest.main()

41
Tests/test_image_paste.py
View File

@ -28,6 +28,15 @@ class TestImagingPaste(PillowTestCase):
]
self.assertEqual(actual, expected)
def assert_9points_paste(self, im, im2, mask, expected):
im3 = im.copy()
im3.paste(im2, (0, 0), mask)
self.assert_9points_image(im3, expected)
# Abbreviated syntax
im.paste(im2, mask)
self.assert_9points_image(im, expected)
@cached_property
def mask_1(self):
mask = Image.new('1', (self.size, self.size))
@ -91,9 +100,7 @@ class TestImagingPaste(PillowTestCase):
im = Image.new(mode, (200, 200), 'white')
im2 = getattr(self, 'gradient_' + mode)
im.paste(im2, (0, 0), self.mask_1)
self.assert_9points_image(im, [
self.assert_9points_paste(im, im2, self.mask_1, [
(255, 255, 255, 255),
(255, 255, 255, 255),
(127, 254, 127, 0),
@ -110,9 +117,7 @@ class TestImagingPaste(PillowTestCase):
im = Image.new(mode, (200, 200), 'white')
im2 = getattr(self, 'gradient_' + mode)
im.paste(im2, (0, 0), self.mask_L)
self.assert_9points_image(im, [
self.assert_9points_paste(im, im2, self.mask_L, [
(128, 191, 255, 191),
(208, 239, 239, 208),
(255, 255, 255, 255),
@ -129,9 +134,7 @@ class TestImagingPaste(PillowTestCase):
im = Image.new(mode, (200, 200), 'white')
im2 = getattr(self, 'gradient_' + mode)
im.paste(im2, (0, 0), self.gradient_RGBA)
self.assert_9points_image(im, [
self.assert_9points_paste(im, im2, self.gradient_RGBA, [
(128, 191, 255, 191),
(208, 239, 239, 208),
(255, 255, 255, 255),
@ -148,9 +151,7 @@ class TestImagingPaste(PillowTestCase):
im = Image.new(mode, (200, 200), 'white')
im2 = getattr(self, 'gradient_' + mode)
im.paste(im2, (0, 0), self.gradient_RGBa)
self.assert_9points_image(im, [
self.assert_9points_paste(im, im2, self.gradient_RGBa, [
(128, 255, 126, 255),
(0, 127, 126, 255),
(126, 253, 126, 255),
@ -180,9 +181,7 @@ class TestImagingPaste(PillowTestCase):
im = Image.new(mode, (200, 200), (50, 60, 70, 80)[:len(mode)])
color = (10, 20, 30, 40)[:len(mode)]
im.paste(color, (0, 0), self.mask_1)
self.assert_9points_image(im, [
self.assert_9points_paste(im, color, self.mask_1, [
(50, 60, 70, 80),
(50, 60, 70, 80),
(10, 20, 30, 40),
@ -199,9 +198,7 @@ class TestImagingPaste(PillowTestCase):
im = getattr(self, 'gradient_' + mode).copy()
color = 'white'
im.paste(color, (0, 0), self.mask_L)
self.assert_9points_image(im, [
self.assert_9points_paste(im, color, self.mask_L, [
(127, 191, 254, 191),
(111, 207, 206, 110),
(127, 254, 127, 0),
@ -218,9 +215,7 @@ class TestImagingPaste(PillowTestCase):
im = getattr(self, 'gradient_' + mode).copy()
color = 'white'
im.paste(color, (0, 0), self.gradient_RGBA)
self.assert_9points_image(im, [
self.assert_9points_paste(im, color, self.gradient_RGBA, [
(127, 191, 254, 191),
(111, 207, 206, 110),
(127, 254, 127, 0),
@ -237,9 +232,7 @@ class TestImagingPaste(PillowTestCase):
im = getattr(self, 'gradient_' + mode).copy()
color = 'white'
im.paste(color, (0, 0), self.gradient_RGBa)
self.assert_9points_image(im, [
self.assert_9points_paste(im, color, self.gradient_RGBa, [
(255, 63, 126, 63),
(47, 143, 142, 46),
(126, 253, 126, 255),

3
Tests/test_image_point.py
View File

@ -35,6 +35,9 @@ class TestImagePoint(PillowTestCase):
int_lut = [x//2 for x in range(256)]
self.assert_image_equal(out.convert('L'), im.point(int_lut, 'L'))
def test_f_mode(self):
self.assertRaises(ValueError, lambda: hopper('F').point(None))
if __name__ == '__main__':
unittest.main()

3
Tests/test_image_resize.py
View File

@ -97,6 +97,9 @@ class TestImagingCoreResize(PillowTestCase):
self.assertEqual(r.size, (212, 195))
self.assertEqual(r.getdata()[0], (0,0,0))
def test_unknown_filter(self):
self.assertRaises(ValueError, self.resize, hopper(), (10, 10), 9)
class TestImageResize(PillowTestCase):

4
Tests/test_image_transform.py
View File

@ -140,6 +140,10 @@ class TestImageTransform(PillowTestCase):
self.test_mesh()
def test_missing_method_data(self):
self.assertRaises(ValueError, lambda:
hopper().transform((100, 100), None))
class TestImageTransformAffine(PillowTestCase):
transform = Image.AFFINE