Crosstips.org

My fun Crossword solver project. Crosstips.org & Krysstips.se

Kung Fu

Fujian White Crane Kung Fu

Fry-IT

Fry-IT is the company I work for

Photos

Photoalbum, both old and new.

Zope

What I have and am doing with Zope

Receptsamlingen

In Swedish only. About my "Collection of Recipes" website.

Contact me

My contact details and how to contact me.

 

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Blogs
  String comparison function in Python (alpha) - 22nd of December 2007

I was working on a unittest which when it failed would say "this string != that string" and because some of these strings were very long (output of a HTML lib I wrote which spits out snippets of HTML code) it became hard to spot how they were different. So I decided to override the usual self.assertEqual(str1, str2) in Python's unittest class instance with this little baby:

 def assertEqualLongString(a, b):
    NOT, POINT = '-', '*'
    if a != b:
        print a
        o = ''
        for i, e in enumerate(a):
            try:
                if e != b[i]:
                    o += POINT
                else:
                    o += NOT
            except IndexError:
                o += '*'

        o += NOT * (len(a)-len(o))
        if len(b) > len(a):
            o += POINT* (len(b)-len(a))

        print o
        print b

        raise AssertionError, '(see string comparison above)'
  To assert or assertEqual in Python unit testing - 14th of February 2009

When you write unit tests in Python you can use these widgets:

 self.assertEqual(var1, var2, msg=None)
 self.assertNotEqual(var1, var2, msg=None)
 self.assertTrue(expr, msg=None)
 self.assertRaises(exception, func, para, meters, ...)