Question on Test Cases

[Jeffrey Walton]

Hi All,

According to Contributing [1]:

    Return errors. No reason whatsoever should abort the execution
    of the library. Even memory allocation errors, e.g. when malloc
    return NULL, should work although result in an error code.

Are negative test cases accepted and welcomed? Or should the test
cases only be positive?

Jeff

[1] http://www.gnu.org/software/gnutls/manual/html_node/Contributing.html