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fix test suite

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for the new jpg sample image
This commit is contained in:
John Cupitt 2019-11-27 11:48:50 +00:00
parent 48f675db45
commit 002b2a28e1
6 changed files with 51 additions and 43 deletions
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test/test-suite/images/sample.jpg
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4
test/test-suite/test_colour.py
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@ -169,8 +169,8 @@ class TestColour:
im = test.colourspace("cmyk").colourspace("srgb")
before = test(582, 210)
after = im(582, 210)
before = test(150, 210)
after = im(150, 210)
assert_almost_equal_objects(before, after, threshold=10)

54
test/test-suite/test_foreign.py
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@ -124,11 +124,11 @@ class TestForeign:
def test_jpeg(self):
def jpeg_valid(im):
a = im(10, 10)
assert_almost_equal_objects(a, [6, 5, 3])
assert_almost_equal_objects(a, [141, 127, 90])
profile = im.get("icc-profile-data")
assert len(profile) == 1352
assert im.width == 1024
assert im.height == 768
assert len(profile) == 564
assert im.width == 290
assert im.height == 442
assert im.bands == 3
self.file_loader("jpegload", JPEG_FILE, jpeg_valid)
@ -726,10 +726,10 @@ class TestForeign:
self.colour.dzsave(filename, suffix=".png")
# test horizontal overlap ... expect 256 step, overlap 1
x = pyvips.Image.new_from_file(filename + "_files/10/0_0.png")
x = pyvips.Image.new_from_file(filename + "_files/9/0_0.png")
assert x.width == 255
y = pyvips.Image.new_from_file(filename + "_files/10/1_0.png")
assert y.width == 256
y = pyvips.Image.new_from_file(filename + "_files/9/1_0.png")
assert y.width == 37
# the right two columns of x should equal the left two columns of y
left = x.crop(x.width - 2, 0, 2, x.height)
@ -738,8 +738,8 @@ class TestForeign:
# test vertical overlap
assert x.height == 255
y = pyvips.Image.new_from_file(filename + "_files/10/0_1.png")
assert y.height == 256
y = pyvips.Image.new_from_file(filename + "_files/9/0_1.png")
assert y.height == 189
# the bottom two rows of x should equal the top two rows of y
top = x.crop(0, x.height - 2, x.width, 2)
@ -751,19 +751,19 @@ class TestForeign:
assert x.width == 1
assert x.height == 1
# 10 should be the final layer
assert not os.path.isdir(filename + "_files/11")
# 9 should be the final layer
assert not os.path.isdir(filename + "_files/10")
# default google layout
filename = temp_filename(self.tempdir, '')
self.colour.dzsave(filename, layout="google")
# test bottom-right tile ... default is 256x256 tiles, overlap 0
x = pyvips.Image.new_from_file(filename + "/2/2/3.jpg")
x = pyvips.Image.new_from_file(filename + "/1/1/1.jpg")
assert x.width == 256
assert x.height == 256
assert not os.path.exists(filename + "/2/2/4.jpg")
assert not os.path.exists(filename + "/3")
assert not os.path.exists(filename + "/1/1/2.jpg")
assert not os.path.exists(filename + "/2")
x = pyvips.Image.new_from_file(filename + "/blank.png")
assert x.width == 256
assert x.height == 256
@ -773,8 +773,10 @@ class TestForeign:
# overlap 1, 510x510 pixels, 256 pixel tiles, should be exactly 2x2
# tiles, though in fact the bottom and right edges will be white
filename = temp_filename(self.tempdir, '')
self.colour.crop(0, 0, 510, 510).dzsave(filename, layout="google",
overlap=1, depth="one")
self.colour \
.replicate(2, 2) \
.crop(0, 0, 510, 510) \
.dzsave(filename, layout="google", overlap=1, depth="one")
x = pyvips.Image.new_from_file(filename + "/0/1/1.jpg")
assert x.width == 256
@ -784,8 +786,10 @@ class TestForeign:
# with 511x511, it'll fit exactly into 2x2 -- we we actually generate
# 3x3, since we output the overlaps
filename = temp_filename(self.tempdir, '')
self.colour.crop(0, 0, 511, 511).dzsave(filename, layout="google",
overlap=1, depth="one")
self.colour \
.replicate(2, 2) \
.crop(0, 0, 511, 511) \
.dzsave(filename, layout="google", overlap=1, depth="one")
x = pyvips.Image.new_from_file(filename + "/0/2/2.jpg")
assert x.width == 256
@ -798,7 +802,7 @@ class TestForeign:
# 256x256 tiles, no overlap
assert os.path.exists(filename + "/ImageProperties.xml")
x = pyvips.Image.new_from_file(filename + "/TileGroup0/2-3-2.jpg")
x = pyvips.Image.new_from_file(filename + "/TileGroup0/1-0-0.jpg")
assert x.width == 256
assert x.height == 256
@ -819,23 +823,23 @@ class TestForeign:
filename = temp_filename(self.tempdir, '')
self.colour.dzsave(filename, suffix=".png")
x = pyvips.Image.new_from_file(filename + "_files/10/0_0.png")
x = pyvips.Image.new_from_file(filename + "_files/9/0_0.png")
assert x.width == 255
# test overlap
filename = temp_filename(self.tempdir, '')
self.colour.dzsave(filename, overlap=200)
y = pyvips.Image.new_from_file(filename + "_files/10/1_1.jpeg")
assert y.width == 654
y = pyvips.Image.new_from_file(filename + "_files/9/1_1.jpeg")
assert y.width == 236
# test tile-size
filename = temp_filename(self.tempdir, '')
self.colour.dzsave(filename, tile_size=512)
y = pyvips.Image.new_from_file(filename + "_files/10/0_0.jpeg")
assert y.width == 513
assert y.height == 513
y = pyvips.Image.new_from_file(filename + "_files/9/0_0.jpeg")
assert y.width == 290
assert y.height == 442
# test save to memory buffer
filename = temp_filename(self.tempdir, '.zip')

2
test/test-suite/test_histogram.py
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@ -96,7 +96,7 @@ class TestHistogram:
ent = im.hist_find().hist_entropy()
assert pytest.approx(ent, 0.01) == 4.37
assert pytest.approx(ent, 0.01) == 6.67
def test_stdif(self):
im = pyvips.Image.new_from_file(JPEG_FILE)

26
test/test-suite/test_resample.py
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@ -103,8 +103,10 @@ class TestResample:
def test_resize(self):
im = pyvips.Image.new_from_file(JPEG_FILE)
im2 = im.resize(0.25)
assert im2.width == round(im.width / 4.0)
assert im2.height == round(im.height / 4.0)
# in py3, round() does not round to nearest in the obvious way, so we
# have to do it by hand
assert im2.width == int(im.width / 4.0 + 0.5)
assert im2.height == int(im.height / 4.0 + 0.5)
# test geometry rounding corner case
im = pyvips.Image.black(100, 1)
@ -115,13 +117,15 @@ class TestResample:
def test_shrink(self):
im = pyvips.Image.new_from_file(JPEG_FILE)
im2 = im.shrink(4, 4)
assert im2.width == round(im.width / 4.0)
assert im2.height == round(im.height / 4.0)
# in py3, round() does not round to nearest in the obvious way, so we
# have to do it by hand
assert im2.width == int(im.width / 4.0 + 0.5)
assert im2.height == int(im.height / 4.0 + 0.5)
assert abs(im.avg() - im2.avg()) < 1
im2 = im.shrink(2.5, 2.5)
assert im2.width == round(im.width / 2.5)
assert im2.height == round(im.height / 2.5)
assert im2.width == int(im.width / 2.5 + 0.5)
assert im2.height == int(im.height / 2.5 + 0.5)
assert abs(im.avg() - im2.avg()) < 1
@pytest.mark.skipif(not pyvips.at_least_libvips(8, 5),
@ -129,7 +133,7 @@ class TestResample:
def test_thumbnail(self):
im = pyvips.Image.thumbnail(JPEG_FILE, 100)
assert im.width == 100
assert im.height == 100
assert im.bands == 3
assert im.bands == 3
@ -138,9 +142,9 @@ class TestResample:
assert abs(im_orig.avg() - im.avg()) < 1
# make sure we always get the right width
for width in range(1000, 1, -13):
im = pyvips.Image.thumbnail(JPEG_FILE, width)
assert im.width == width
for height in range(440, 1, -13):
im = pyvips.Image.thumbnail(JPEG_FILE, height)
assert im.height == height
# should fit one of width or height
im = pyvips.Image.thumbnail(JPEG_FILE, 100, height=300)
@ -196,7 +200,7 @@ class TestResample:
# distorted, but the rest should not be too bad
a = r.crop(50, 0, im.width - 50, im.height).gaussblur(2)
b = im.crop(50, 0, im.width - 50, im.height).gaussblur(2)
assert (a - b).abs().max() < 20
assert (a - b).abs().max() < 40
# this was a bug at one point, strangely, if executed with debug
# enabled

8
test/test-suite/test_stream.py
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@ -49,8 +49,8 @@ class TestStream:
x = pyvips.Streami.new_from_file(JPEG_FILE)
y = pyvips.Image.new_from_stream(x, "")
assert y.width == 1024
assert y.height == 768
assert y.width == 290
assert y.height == 442
def test_streamo_new_to_file(self):
filename = temp_filename(self.tempdir, ".jpg")
@ -81,8 +81,8 @@ class TestStream:
x = pyvips.Streami.new_from_memory(data)
y = pyvips.Image.new_from_stream(x, "")
assert y.width == 1024
assert y.height == 768
assert y.width == 290
assert y.height == 442
def test_streamo_new_memory(self):
x = pyvips.Streamo.new_to_memory()