def METHOD_NAME(self):
    @jit(nopython=True)
    def foo(x):
        print(x)
    @jit(nopython=True)
    def bar(x):
        foo(x)
        foo('hello')
    # Printing an array requires the Env.
    # We need to make sure the inner function can obtain the Env.
    x = np.arange(5)
    with captured_stdout():
        bar(x)
        self.assertEqual(sys.stdout.getvalue(), '[0 1 2 3 4]\nhello\n')