def test_constructor(self):
"""
Test initialization
"""
# Initialize empty map
f = Map()
self.assertTrue(isinstance(f, Map))
self.assertIsNone(f.dim())
#
# Exceptions
#
mesh = Mesh1D()
# Mesh dimension incompatible with element
element = QuadFE(2, 'DQ1')
#self.assertRaises(Exception, Map, **{'mesh':mesh, 'element':element})
# Dofhandler incompatibility
element = QuadFE(1, 'Q1')
dofhandler = DofHandler(mesh, element)
#self.assertRaises(Exception, Map, **{'dofhandler': dofhandler,
# 'dim':2})
# function returns the same mesh
f1 = Map(dofhandler=dofhandler)
f2 = Map(mesh=mesh)
self.assertEqual(f1.mesh(), f2.mesh())
