unittest.assertRaise and keyword arguments?

[Bo Peng]

Dear list,

The syntax for using assertRaise is

assertRaise(exception, function, para1, para2,...)

However, I have a long list of arguments (>20) so I would like to test
some of them using keyword arguments (use default for others). Is there
a way to do this except for manually try...except?

Thanks.
Bo

 

[Giovanni Bajo]

The syntax for using assertRaise is

assertRaise(exception, function, para1, para2,...)

However, I have a long list of arguments (>20) so I would like to test
some of them using keyword arguments (use default for others). Is there
a way to do this except for manually try...except?

You can pass keyword arguments to assertRaises without problems:

self.assertRaises(ValueError, myfunc, arg1,arg2, arg3, arg4, abc=0, foo=1,
bar="hello")

Or you can always do something like:

self.assertRaises(ValueError, lambda: myfunc(arg1,arg2, arg3, arg4, abc=0,
foo=1, bar="hello"))

 

[Bo Peng]

You can pass keyword arguments to assertRaises without problems:

self.assertRaises(ValueError, myfunc, arg1,arg2, arg3, arg4, abc=0, foo=1,
bar="hello")

Well, I though abc=0 would be keyword arguments for assertRaisers and
never tried it!

Or you can always do something like:

self.assertRaises(ValueError, lambda: myfunc(arg1,arg2, arg3, arg4, abc=0,
foo=1, bar="hello"))

This is also useful.

I now have nothing to complain against assertTaises.

Bo