102 lines
3.4 KiB
Python
102 lines
3.4 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from nose.plugins.errorclass import ErrorClass, ErrorClassPlugin
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from nose.tools import assert_almost_equal
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import os, sys, inspect, traceback
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import mapnik
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HERE = os.path.dirname(__file__)
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def execution_path(filename):
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return os.path.join(os.path.dirname(sys._getframe(1).f_code.co_filename), filename)
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class Todo(Exception):
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pass
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class TodoPlugin(ErrorClassPlugin):
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name = "todo"
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todo = ErrorClass(Todo, label='TODO', isfailure=False)
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def contains_word(word, bytestring_):
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"""
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Checks that a bytestring contains a given word. len(bytestring) should be
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a multiple of len(word).
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>>> contains_word("abcd", "abcd"*5)
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True
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>>> contains_word("ab", "ba"*5)
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False
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>>> contains_word("ab", "ab"*5+"a")
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Traceback (most recent call last):
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...
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AssertionError: len(bytestring_) not multiple of len(word)
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"""
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n = len(word)
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assert len(bytestring_)%n == 0, "len(bytestring_) not multiple of len(word)"
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chunks = [bytestring_[i:i+n] for i in xrange(0, len(bytestring_), n)]
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return word in chunks
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def pixel2channels(pixel):
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alpha = (pixel >> 24) & 0xff
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red = pixel & 0xff
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green = (pixel >> 8) & 0xff
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blue = (pixel >> 16) & 0xff
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return red,green,blue,alpha
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def pixel2rgba(pixel):
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return 'rgba(%s,%s,%s,%s)' % pixel2channels(pixel)
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def get_unique_colors(im):
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pixels = []
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for x in range(im.width()):
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for y in range(im.height()):
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pixel = im.get_pixel(x,y)
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if pixel not in pixels:
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pixels.append(pixel)
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pixels = sorted(pixels)
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return map(pixel2rgba,pixels)
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def run_all(iterable):
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failed = 0
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for test in iterable:
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try:
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test()
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sys.stderr.write("\x1b[32m✓ \x1b[m" + test.__name__ + "\x1b[m\n")
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except:
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exc_type, exc_value, exc_tb = sys.exc_info()
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failed += 1
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sys.stderr.write("\x1b[31m✘ \x1b[m" + test.__name__ + "\x1b[m\n")
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for mline in traceback.format_exception_only(exc_type, exc_value):
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for line in mline.rstrip().split("\n"):
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sys.stderr.write(" \x1b[31m" + line + "\x1b[m\n")
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sys.stderr.write(" Traceback:\n")
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for mline in traceback.format_tb(exc_tb):
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for line in mline.rstrip().split("\n"):
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if not 'utilities.py' in line and not 'trivial.py' in line and not line.strip() == 'test()':
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sys.stderr.write(" " + line + "\n")
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sys.stderr.flush()
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return failed
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def side_by_side_image(left_im, right_im):
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width = left_im.width() + 1 + right_im.width()
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height = max(left_im.height(), right_im.height())
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im = mapnik.Image(width, height)
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im.composite(left_im,mapnik.CompositeOp.src_over,1.0,0,0)
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if width > 80:
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im.composite(mapnik.Image.open(HERE+'/images/expected.png'),mapnik.CompositeOp.difference,1.0,0,0)
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im.composite(right_im,mapnik.CompositeOp.src_over,1.0,left_im.width() + 1, 0)
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if width > 80:
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im.composite(mapnik.Image.open(HERE+'/images/actual.png'),mapnik.CompositeOp.difference,1.0,left_im.width() + 1, 0)
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return im
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def assert_box2d_almost_equal(a, b, msg=None):
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msg = msg or ("%r != %r" % (a, b))
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assert_almost_equal(a.minx, b.minx, msg=msg)
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assert_almost_equal(a.maxx, b.maxx, msg=msg)
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assert_almost_equal(a.miny, b.miny, msg=msg)
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assert_almost_equal(a.maxy, b.maxy, msg=msg)
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