SquirrelJME/SquirrelJME

/* -*- Mode: C; indent-tabs-mode: t; tab-width: 4 -*-
// ---------------------------------------------------------------------------
// SquirrelJME
//     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
// ---------------------------------------------------------------------------
// SquirrelJME is under the Mozilla Public License Version 2.0.
// See license.mkd for licensing and copyright information.
// -------------------------------------------------------------------------*/

#include <string.h>

#include "mock.h"
#include "proto.h"
#include "test.h"
#include "unit.h"

#define NUM_BYTES 16

#define READ_BUF 4

static const sjme_jubyte testData[NUM_BYTES] =
{
    2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
    13, 14, 15, 16, 17
};

/**
 * Tests reading a single character.
 *  
 * @since 2024/01/01 
 */
SJME_TEST_DECLARE(testStreamReadSingle)
{
    sjme_stream_input inputStream;
    sjme_jint readCount;
    sjme_jint single;
    sjme_juint at;

    /* Setup input stream. */
    inputStream = NULL;
    if (sjme_error_is(sjme_stream_inputOpenMemory(test->pool,
        &inputStream, testData, NUM_BYTES)) ||
        inputStream == NULL)
        return sjme_unit_fail(test, "Could not open input stream.");

    /* Read until EOF. */
    for (at = 0;; at++)
    {
        /* Read in next byte. */
        single = -2;
        if (sjme_error_is(sjme_stream_inputReadSingle(inputStream,
            &single)) || single < -1)
            return sjme_unit_fail(test, "Could not read single byte.");

        /* EOS? */
        if (at == NUM_BYTES)
        {
            sjme_unit_equalI(test, single, -1,
                "End of stream not marked?");
            break;
        }

        /* Should not occur normally. */
        else if (at > NUM_BYTES)
        {
            sjme_unit_fail(test, "More bytes in the buffer?");
            break;
        }

        /* Make sure it matches. */
        sjme_unit_equalI(test, testData[at], single,
            "Bytes did not match?");
    }

    /* Close the stream. */
    if (sjme_error_is(sjme_stream_inputClose(inputStream)))
        return sjme_unit_fail(test, "Could not close stream?");

    /* Success! */
    return SJME_TEST_RESULT_PASS;
}