test_var.py 文件源码

def test_var():
    var("a")
    assert a == Symbol("a")

    var("b bb cc zz _x")
    assert b == Symbol("b")
    assert bb == Symbol("bb")
    assert cc == Symbol("cc")
    assert zz == Symbol("zz")
    assert _x == Symbol("_x")

    v = var(['d', 'e', 'fg'])
    assert d == Symbol('d')
    assert e == Symbol('e')
    assert fg == Symbol('fg')

    # check return value
    assert v == [d, e, fg]

    # see if var() really injects into global namespace
    raises(NameError, lambda: z1)
    _make_z1()
    assert z1 == Symbol("z1")

    raises(NameError, lambda: z2)
    _make_z2()
    assert z2 == Symbol("z2")