def _each_parens(self, with_parens, math, parens, tall=False):
"""
Helper method to test the way parens are wrapped.
"""
obj = preview.LatexRendered(math, parens=parens, tall=tall)
self.assertEquals(obj.latex, with_parens)
self.assertEquals(obj.sans_parens, math)
self.assertEquals(obj.tall, tall)
def test_simple(self):
"""
Test that the data values are stored without changing.
"""
math = 'x^2'
obj = preview.LatexRendered(math, tall=True)
self.assertEquals(obj.latex, math)
self.assertEquals(obj.sans_parens, math)
self.assertEquals(obj.tall, True)
def test_bad_parens(self):
""" Check that we get an error with invalid parens. """
with self.assertRaisesRegexp(Exception, 'Unknown parenthesis'):
preview.LatexRendered('x^2', parens='not parens')