I'm testing custom build of minizip, and discovered some issues with the tests in \test\test.c.

The initial creation of zip in memory stream fails if it is opened in read-write mode:

    /* Write zip to memory stream */
    mz_stream_mem_create(&write_mem_stream);
    mz_stream_mem_set_grow_size(write_mem_stream, 128 * 1024);
    mz_stream_open(write_mem_stream, NULL, MZ_OPEN_MODE_CREATE);

    mz_zip_create(&zip_handle);
    err = mz_zip_open(zip_handle, write_mem_stream, MZ_OPEN_MODE_READWRITE);

The error -107 (MZ_EXIST_ERROR) is returned from mz_stream_find_reverse (well, the stream is empty).

Changing MZ_OPEN_MODE_READWRITE to MZ_OPEN_MODE_WRITE solves the issue.

Is the test supposed to work with MZ_OPEN_MODE_READWRITE here?