TESTCASE_NOREG( fopen( testfile, "wr" ) == NULL ); /* Undefined mode */
TESTCASE( ( fh = fopen( testfile, "w" ) ) != NULL );
TESTCASE( fclose( fh ) == 0 );
TESTCASE_NOREG( fopen( testfile, "wr" ) == NULL ); /* Undefined mode */
TESTCASE( ( fh = fopen( testfile, "w" ) ) != NULL );
TESTCASE( fclose( fh ) == 0 );