New test for another error case in DepositScriptAddress

On 15/09/14 11:15, Jimmy Song wrote:
> 
>     A "return nil, nil" on line 411 does not affect my test, and that is
>     expected.
> 
> You're testing to see if the error you get back has the right error code
> (ErrCrypto). The error is nil. You're saying this test should pass?

Yes, because DepositScript returning nil, nil does not change the error
returned by DepositScriptAddress, so the test passes.