[MERGE] make init-repo use '.' as default location

[Ben Finney]

Scott Scriven <bzr at toykeeper.net> writes:

> But... after looking at unittest.py, I can say "assertTrue" is
> misleading. It doesn't assert(expr is True) or even assert(expr ==
> True). Instead, it's equivalent to assert(not not expr).

I've extended unittest.TestCase with several more assertion methods
(as I'm sure many others have done). I've made analogues of:

    TestCase.failIfEqual(first, second)
    TestCase.assertNotEqual(first, second)
    TestCase.failUnlessEqual(first, second)
    TestCase.assertEqual(first, second)

as

    TestCase.failIfIs(first, second)
    TestCase.assertNotIs(first, second)
    TestCase.failUnlessIs(first, second)
    TestCase.assertIs(first, second)

which simply use the 'is' operator instead of the '==' operator.

This makes the narrower 'assertTrue' redundant:

    self.assertIs(True, expr)

while also allowing for testing many other identity comparisons.

-- 
 \     “I must say that I find television very educational. The minute |
  `\       somebody turns it on, I go to the library and read a book.” |
_o__)                                                    —Groucho Marx |
Ben Finney