src/message_test.c

/* vi:set ts=8 sts=4 sw=4 noet:
 *
 * VIM - Vi IMproved	by Bram Moolenaar
 *
 * Do ":help uganda"  in Vim to read copying and usage conditions.
 * Do ":help credits" in Vim to see a list of people who contributed.
 * See README.txt for an overview of the Vim source code.
 */

/*
 * message_test.c: Unittests for message.c
 */

#undef NDEBUG
#include <assert.h>

// Must include main.c because it contains much more than just main()
#define NO_VIM_MAIN
#include "main.c"

// This file has to be included because some of the tested functions are
// static.
#include "message.c"

/*
 * Test trunc_string().
 */
    static void
test_trunc_string(void)
{
    char_u  *buf; /*allocated every time to find uninit errors */
    char_u  *s;

    // in place
    buf = alloc(40);
    STRCPY(buf, "text");
    trunc_string(buf, buf, 20, 40);
    assert(STRCMP(buf, "text") == 0);
    vim_free(buf);

    buf = alloc(40);
    STRCPY(buf, "a short text");
    trunc_string(buf, buf, 20, 40);
    assert(STRCMP(buf, "a short text") == 0);
    vim_free(buf);

    buf = alloc(40);
    STRCPY(buf, "a text tha just fits");
    trunc_string(buf, buf, 20, 40);
    assert(STRCMP(buf, "a text tha just fits") == 0);
    vim_free(buf);

    buf = alloc(40);
    STRCPY(buf, "a text that nott fits");
    trunc_string(buf, buf, 20, 40);
    assert(STRCMP(buf, "a text t...nott fits") == 0);
    vim_free(buf);

    // copy from string to buf
    buf = alloc(40);
    s = vim_strsave((char_u *)"text");
    trunc_string(s, buf, 20, 40);
    assert(STRCMP(buf, "text") == 0);
    vim_free(buf);
    vim_free(s);

    buf = alloc(40);
    s = vim_strsave((char_u *)"a text that fits");
    trunc_string(s, buf, 34, 40);
    assert(STRCMP(buf, "a text that fits") == 0);
    vim_free(buf);
    vim_free(s);

    buf = alloc(40);
    s = vim_strsave((char_u *)"a short text");
    trunc_string(s, buf, 20, 40);
    assert(STRCMP(buf, "a short text") == 0);
    vim_free(buf);
    vim_free(s);

    buf = alloc(40);
    s = vim_strsave((char_u *)"a text tha just fits");
    trunc_string(s, buf, 20, 40);
    assert(STRCMP(buf, "a text tha just fits") == 0);
    vim_free(buf);
    vim_free(s);

    buf = alloc(40);
    s = vim_strsave((char_u *)"a text that nott fits");
    trunc_string(s, buf, 20, 40);
    assert(STRCMP(buf, "a text t...nott fits") == 0);
    vim_free(buf);
    vim_free(s);
}

    int
main(int argc, char **argv)
{
    vim_memset(&params, 0, sizeof(params));
    params.argc = argc;
    params.argv = argv;
    common_init(&params);
    init_chartab();

    test_trunc_string();
    return 0;
}