tests/test_streams.c

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2023 Mike Becker, Olaf Wintermann All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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#include "cx/test.h"

#include "cx/streams.h"
#include "cx/buffer.h"

CX_TEST(test_stream_bncopy) {
    CxBuffer source, target;
    char sbuf[32], tbuf[32];
    memset(tbuf, 0, 32);
    cxBufferInit(&source, sbuf, 32, NULL, 0);
    cxBufferInit(&target, tbuf, 32, NULL, 0);
    cxBufferPutString(&source, "This is a stream copy test.");
    cxBufferSeek(&source, 0, SEEK_SET);
    char tmp[4];

    CX_TEST_DO {
        size_t result = cx_stream_bncopy(&source, &target,
                                         cxBufferReadFunc,
                                         cxBufferWriteFunc,
                                         tmp, 4, 0);
        CX_TEST_ASSERT(result == 0);
        CX_TEST_ASSERT(target.size == 0);

        result = cx_stream_bncopy(&source, &target,
                                         cxBufferReadFunc,
                                         cxBufferWriteFunc,
                                         tmp, 4, 20);
        CX_TEST_ASSERT(result == 20);
        CX_TEST_ASSERT(target.size == 20);
        CX_TEST_ASSERT(strcmp("This is a stream cop\0", tbuf) == 0);

        result = cx_stream_bcopy(&source, &target,
                                 cxBufferReadFunc,
                                 cxBufferWriteFunc,
                                 NULL, 16);

        CX_TEST_ASSERT(result == 7);
        CX_TEST_ASSERT(target.size == 27);
        CX_TEST_ASSERT(strcmp("This is a stream copy test.\0", tbuf) == 0);
    }

    cxBufferDestroy(&source);
    cxBufferDestroy(&target);
}

CX_TEST(test_stream_ncopy) {
    CxBuffer source, target;
    char sbuf[32], tbuf[32];
    memset(tbuf, 0, 32);
    cxBufferInit(&source, sbuf, 32, NULL, 0);
    cxBufferInit(&target, tbuf, 32, NULL, 0);
    cxBufferPutString(&source, "This is a stream copy test.");
    cxBufferSeek(&source, 0, SEEK_SET);

    CX_TEST_DO {
        size_t result = cx_stream_ncopy(&source, &target,
                                        cxBufferReadFunc,
                                        cxBufferWriteFunc,
                                        20);
        CX_TEST_ASSERT(result == 20);
        CX_TEST_ASSERT(target.size == 20);
        CX_TEST_ASSERT(strcmp("This is a stream cop\0", tbuf) == 0);

        result = cx_stream_copy(&source, &target,
                                cxBufferReadFunc,
                                cxBufferWriteFunc);

        CX_TEST_ASSERT(result == 7);
        CX_TEST_ASSERT(target.size == 27);
        CX_TEST_ASSERT(strcmp("This is a stream copy test.\0", tbuf) == 0);
    }

    cxBufferDestroy(&source);
    cxBufferDestroy(&target);
}

CxTestSuite *cx_test_suite_streams(void) {
    CxTestSuite *suite = cx_test_suite_new("streams");

    cx_test_register(suite, test_stream_bncopy);
    cx_test_register(suite, test_stream_ncopy);

    return suite;
}