[Python] still not happy with unittest.failUnlessRaises

[paul koelle]
By "this is expected to fail", do you mean that the test is supposed
to fail, or that the test is supposed to pass by verifying that the
thing it's testing fails? "This" is ambiguous. I'll assume the
latter.
self.ca_client_tmpl))

What you're actually testing here is that IntegrityError gets raised by

temp()

where

temp = self.failhelper(certs.Subcacert, self.ca_client_tmpl)

is evaluated outside the control of failUnlessRaises.
failUnlessRaises *calls* its second argument. If

self.failhelper(certs.Subcacert, self.ca_client_tmpl)

on its own raises IntegrityError, and that's what you intended to
test, then you need to spell the test

self.failUnlessRaises(IntegrityError, self.failhelper,
certs.Subcacert, self.ca_client_tmpl)

You didn't show enough code so that a reader could guess the answers
to these questions.
Yes. Note that the second argument is a callable object, and the
'...' consists of arguments to pass to the callable. So, e.g., the
test

self.failUnlessRaises(ValueError, math.sqrt(-1))

fails, but the test

self.failUnlessRaises(ValueError, math.sqrt, -1)

passes.

correct.

[ snipp ]
My apologies. In fact, it turned out to be simple as:
self.failUnlessRaises(IntegrityError, certs.Subcacert.new,
**self.client_tmpl)

thanks again
Paul