def test_IndependentProductPSpace():
X = Normal('X', 0, 1)
Y = Normal('Y', 0, 1)
px = X.pspace
py = Y.pspace
assert pspace(X + Y) == IndependentProductPSpace(px, py)
assert pspace(X + Y) == IndependentProductPSpace(py, px)
def test_pspace():
X, Y = Normal('X', 0, 1), Normal('Y', 0, 1)
raises(ValueError, lambda: pspace(5 + 3))
raises(ValueError, lambda: pspace(x < 1))
assert pspace(X) == X.pspace
assert pspace(2 * X + 1) == X.pspace
assert pspace(2 * X + Y) == IndependentProductPSpace(Y.pspace, X.pspace)