view src/message_test.c @ 10801:e7b8be5ecacd v8.0.0290

patch 8.0.0290: cursor positioning wrong if wide character wraps commit https://github.com/vim/vim/commit/04e87b72c5fa88b7034a5b0ec0be6a7ad763e9d2 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Feb 1 21:23:10 2017 +0100 patch 8.0.0290: cursor positioning wrong if wide character wraps Problem: If a wide character doesn't fit at the end of the screen line, and the line doesn't fit on the screen, then the cursor position may be wrong. (anliting) Solution: Don't skip over wide character. (Christian Brabandt, closes #1408)
author Christian Brabandt <cb@256bit.org>
date Wed, 01 Feb 2017 21:30:04 +0100
parents 4aead6a9b7a9
children b254fd46ef62
line wrap: on
line source

/* 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)
{
    mparm_T params;

    vim_memset(&params, 0, sizeof(params));
    params.argc = argc;
    params.argv = argv;
    common_init(&params);
    init_chartab();

    test_trunc_string();
    return 0;
}