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abs unittest done

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This commit is contained in:
John Cupitt 2014-09-13 19:49:03 +01:00
parent ce8d7e5789
commit 2c1c9b94fe
1 changed files with 20 additions and 21 deletions
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41
python/test_arithmetic.py
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@ -9,17 +9,19 @@ import gc
from gi.repository import Vips from gi.repository import Vips
from vips8 import vips from vips8 import vips
formats = [Vips.BandFormat.UCHAR, unsigned_formats = [Vips.BandFormat.UCHAR,
Vips.BandFormat.CHAR, Vips.BandFormat.USHORT,
Vips.BandFormat.USHORT, Vips.BandFormat.UINT]
Vips.BandFormat.SHORT, signed_formats = [Vips.BandFormat.CHAR,
Vips.BandFormat.UINT, Vips.BandFormat.SHORT,
Vips.BandFormat.INT, Vips.BandFormat.INT]
Vips.BandFormat.FLOAT, float_formats = [Vips.BandFormat.FLOAT,
Vips.BandFormat.DOUBLE] Vips.BandFormat.DOUBLE]
cformats = [Vips.BandFormat.COMPLEX, complex_formats = [Vips.BandFormat.COMPLEX,
Vips.BandFormat.DPCOMPLEX] Vips.BandFormat.DPCOMPLEX]
all_formats = formats + cformats; int_formats = unsigned_formats + signed_formats
noncomplex_formats = int_formats + float_formats
all_formats = int_formats + float_formats + complex_formats
# an expanding zip ... if either of the args is not a list, duplicate it down # an expanding zip ... if either of the args is not a list, duplicate it down
# the other # the other
@ -56,8 +58,8 @@ def run_fn2(fn, x, y):
class TestArithmetic(unittest.TestCase): class TestArithmetic(unittest.TestCase):
# test a pair of things which can be lists for approx. equality # test a pair of things which can be lists for approx. equality
def assertAlmostEqualObjects(self, a, b, msg = ''): def assertAlmostEqualObjects(self, a, b, msg = ''):
[self.assertAlmostEqual(x, y, places = 2, msg = msg) for x, y in zip_expand(a, b):
for x, y in zip_expand(a, b)] self.assertAlmostEqual(x, y, places = 2, msg = msg)
# run a function on an image and on a single pixel, the results # run a function on an image and on a single pixel, the results
# should match # should match
@ -66,7 +68,6 @@ class TestArithmetic(unittest.TestCase):
v1 = fn(a) v1 = fn(a)
im2 = fn(im) im2 = fn(im)
v2 = im2.getpoint(x, y) v2 = im2.getpoint(x, y)
#print 'self.assertAlmostEqualObjects: %s = %s' % (v1, v2)
self.assertAlmostEqualObjects(v1, v2, msg = message) self.assertAlmostEqualObjects(v1, v2, msg = message)
# run a function on (image, constant), and on (constant, image). # run a function on (image, constant), and on (constant, image).
@ -82,7 +83,7 @@ class TestArithmetic(unittest.TestCase):
for x in self.all_images for y in fmt] for x in self.all_images for y in fmt]
[self.run_testconst(fn.func_name + ' vector', fn, self.colour.cast(y), [self.run_testconst(fn.func_name + ' vector', fn, self.colour.cast(y),
[12, 13, 14]) [12, 13, 14])
for y in formats] for y in fmt]
# run a function on a pair of images and on a pair of pixels, the results # run a function on a pair of images and on a pair of pixels, the results
# should match # should match
@ -108,7 +109,7 @@ class TestArithmetic(unittest.TestCase):
def setUp(self): def setUp(self):
im = Vips.Image.mask_ideal(100, 100, 0.5) im = Vips.Image.mask_ideal(100, 100, 0.5)
self.colour = im * [100, 128, 140] + [20, 30, 40] self.colour = im * [10, 20, 30] + [20, 30, 40]
self.mono = self.colour.extract_band(1) self.mono = self.colour.extract_band(1)
self.all_images = [self.mono, self.colour] self.all_images = [self.mono, self.colour]
@ -139,7 +140,7 @@ class TestArithmetic(unittest.TestCase):
# div(const / image) needs (image ** -1), which won't work for complex # div(const / image) needs (image ** -1), which won't work for complex
# images ... just test with non-complex # images ... just test with non-complex
self.run_arith_const(div, fmt = formats) self.run_arith_const(div, fmt = noncomplex_formats)
self.run_arith(div) self.run_arith(div)
# run a function on an image, # run a function on an image,
@ -156,10 +157,8 @@ class TestArithmetic(unittest.TestCase):
def my_abs(x): def my_abs(x):
return abs(x) return abs(x)
im = -self.mono; im = -self.colour
#self.run_unary([im], my_abs) self.run_unary([im], my_abs, fmt = signed_formats + float_formats)
self.run_cmp('poop', im, 50, 50, lambda x: run_fn(my_abs, im))
if __name__ == '__main__': if __name__ == '__main__':
unittest.main() unittest.main()