[testlib] consider rset for template / view selection (closes #2447183) The original code did something like: kwargs['rset'] = rset viewfunc = lambda **k: viewsreg.main_template(req, template, **kwargs) kwargs.pop('rset') return self._test_view(viewfunc, view, template, kwargs) meaning that by the time ``viewfunc`` (i.e. the lambda function) is called, ``rset`` was popped from ``kwargs`` and had no chance to be passed to ``main_template``.

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from os.path import join

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assert __file__.endswith(join('scripts', 'script3.py')), __file__

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assert '__main__' == __name__, __name__

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assert ['-vd', '-f', 'FILE.TXT'] == __args__, __args__