test_difflib.py 文件源码

def test_html_diff(self):
        # Check SF patch 914575 for generating HTML differences
        f1a = ((patch914575_from1 + '123\n'*10)*3)
        t1a = (patch914575_to1 + '123\n'*10)*3
        f1b = '456\n'*10 + f1a
        t1b = '456\n'*10 + t1a
        f1a = f1a.splitlines()
        t1a = t1a.splitlines()
        f1b = f1b.splitlines()
        t1b = t1b.splitlines()
        f2 = patch914575_from2.splitlines()
        t2 = patch914575_to2.splitlines()
        f3 = patch914575_from3
        t3 = patch914575_to3
        i = difflib.HtmlDiff()
        j = difflib.HtmlDiff(tabsize=2)
        k = difflib.HtmlDiff(wrapcolumn=14)

        full = i.make_file(f1a,t1a,'from','to',context=False,numlines=5)
        tables = '\n'.join(
            [
             '<h2>Context (first diff within numlines=5(default))</h2>',
             i.make_table(f1a,t1a,'from','to',context=True),
             '<h2>Context (first diff after numlines=5(default))</h2>',
             i.make_table(f1b,t1b,'from','to',context=True),
             '<h2>Context (numlines=6)</h2>',
             i.make_table(f1a,t1a,'from','to',context=True,numlines=6),
             '<h2>Context (numlines=0)</h2>',
             i.make_table(f1a,t1a,'from','to',context=True,numlines=0),
             '<h2>Same Context</h2>',
             i.make_table(f1a,f1a,'from','to',context=True),
             '<h2>Same Full</h2>',
             i.make_table(f1a,f1a,'from','to',context=False),
             '<h2>Empty Context</h2>',
             i.make_table([],[],'from','to',context=True),
             '<h2>Empty Full</h2>',
             i.make_table([],[],'from','to',context=False),
             '<h2>tabsize=2</h2>',
             j.make_table(f2,t2),
             '<h2>tabsize=default</h2>',
             i.make_table(f2,t2),
             '<h2>Context (wrapcolumn=14,numlines=0)</h2>',
             k.make_table(f3.splitlines(),t3.splitlines(),context=True,numlines=0),
             '<h2>wrapcolumn=14,splitlines()</h2>',
             k.make_table(f3.splitlines(),t3.splitlines()),
             '<h2>wrapcolumn=14,splitlines(True)</h2>',
             k.make_table(f3.splitlines(True),t3.splitlines(True)),
             ])
        actual = full.replace('</body>','\n%s\n</body>' % tables)

        # temporarily uncomment next two lines to baseline this test
        #with open('test_difflib_expect.html','w') as fp:
        #    fp.write(actual)

        with open(findfile('test_difflib_expect.html')) as fp:
            self.assertEqual(actual, fp.read())