tests: add tests on GUI chat functions

Functions tested:

- gui_chat_utf_char_valid
- gui_chat_char_size_screen
- gui_chat_strlen
- gui_chat_strlen_screen
- gui_chat_string_add_offset
- gui_chat_string_add_offset_screen
- gui_chat_string_real_pos
- gui_chat_string_pos
- gui_chat_get_word_info
- gui_chat_printf_date_tags_internal
- gui_chat_printf_date_tags
- gui_chat_printf_y

1 files changed, 624 insertions, 0 deletions

diff --git a/tests/unit/gui/test-gui-chat.cpp b/tests/unit/gui/test-gui-chat.cpp
new file mode 100644
index 000000000..22c440726
--- /dev/null
+++ b/tests/unit/gui/test-gui-chat.cpp
@@ -0,0 +1,624 @@
+/*
+ * test-gui-chat.cpp - test chat functions
+ *
+ * Copyright (C) 2022 Sébastien Helleu <flashcode@flashtux.org>
+ *
+ * This file is part of WeeChat, the extensible chat client.
+ *
+ * WeeChat is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * WeeChat is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with WeeChat.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "CppUTest/TestHarness.h"
+
+extern "C"
+{
+#include <string.h>
+#include "src/gui/gui-buffer.h"
+#include "src/gui/gui-chat.h"
+#include "src/gui/gui-line.h"
+#include "src/gui/gui-window.h"
+
+extern int gui_chat_char_size_screen (const char *utf_char);
+}
+
+#define WEE_GET_WORD_INFO(__result_word_start_offset,                   \
+                          __result_word_end_offset,                     \
+                          __result_word_length_with_spaces,             \
+                          __result_word_length, __string)               \
+    word_start_offset = -2;                                             \
+    word_end_offset = -2;                                               \
+    word_length_with_spaces = -2;                                       \
+    word_length = -2;                                                   \
+    gui_chat_get_word_info (gui_windows, __string,                      \
+                            &word_start_offset, &word_end_offset,       \
+                            &word_length_with_spaces, &word_length);    \
+    LONGS_EQUAL(__result_word_start_offset, word_start_offset);         \
+    LONGS_EQUAL(__result_word_end_offset, word_end_offset);             \
+    LONGS_EQUAL(__result_word_length_with_spaces,                       \
+                word_length_with_spaces);                               \
+    LONGS_EQUAL(__result_word_length, word_length);
+
+TEST_GROUP(GuiChat)
+{
+};
+
+/*
+ * Tests functions:
+ *   gui_chat_init
+ */
+
+TEST(GuiChat, Init)
+{
+    /* TODO: write tests */
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_prefix_build
+ */
+
+TEST(GuiChat, PrefixBuild)
+{
+    /* TODO: write tests */
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_utf_char_valid
+ */
+
+TEST(GuiChat, UtfCharValid)
+{
+    LONGS_EQUAL(0, gui_chat_utf_char_valid (NULL));
+    LONGS_EQUAL(0, gui_chat_utf_char_valid (""));
+
+    LONGS_EQUAL(0, gui_chat_utf_char_valid ("\x01"));
+    LONGS_EQUAL(0, gui_chat_utf_char_valid ("\x1F"));
+
+    LONGS_EQUAL(0, gui_chat_utf_char_valid ("\x92"));
+    LONGS_EQUAL(0, gui_chat_utf_char_valid ("\x7F"));
+
+    LONGS_EQUAL(1, gui_chat_utf_char_valid ("\x93"));
+    LONGS_EQUAL(1, gui_chat_utf_char_valid ("\x80"));
+
+    LONGS_EQUAL(1, gui_chat_utf_char_valid ("abc"));
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_char_size_screen
+ */
+
+TEST(GuiChat, CharSizeScreen)
+{
+    LONGS_EQUAL(0, gui_chat_char_size_screen (NULL));
+
+    LONGS_EQUAL(1, gui_chat_char_size_screen ("\x01"));
+
+    LONGS_EQUAL(1, gui_chat_char_size_screen ("no\xc3\xabl"));
+    LONGS_EQUAL(2, gui_chat_char_size_screen ("\xe2\xbb\xa9"));
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_strlen
+ */
+
+TEST(GuiChat, Strlen)
+{
+    LONGS_EQUAL(0, gui_chat_strlen (NULL));
+    LONGS_EQUAL(0, gui_chat_strlen (""));
+
+    LONGS_EQUAL(3, gui_chat_strlen ("abc"));
+    LONGS_EQUAL(4, gui_chat_strlen ("no\xc3\xabl"));
+    LONGS_EQUAL(1, gui_chat_strlen ("\xe2\xbb\xa9"));
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_strlen_screen
+ */
+
+TEST(GuiChat, StrlenScreen)
+{
+    LONGS_EQUAL(0, gui_chat_strlen_screen (NULL));
+    LONGS_EQUAL(0, gui_chat_strlen_screen (""));
+
+    LONGS_EQUAL(3, gui_chat_strlen_screen ("abc"));
+    LONGS_EQUAL(4, gui_chat_strlen_screen ("no\xc3\xabl"));
+    LONGS_EQUAL(2, gui_chat_strlen_screen ("\xe2\xbb\xa9"));
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_string_add_offset
+ */
+
+TEST(GuiChat, StringAddOffset)
+{
+    const char *str_empty = "";
+    const char *str_noel = "no\xc3\xabl";
+    const char *str_other = "A\xe2\xbb\xa9Z";
+
+    POINTERS_EQUAL(NULL, gui_chat_string_add_offset (NULL, -1));
+    POINTERS_EQUAL(NULL, gui_chat_string_add_offset (NULL, 0));
+    POINTERS_EQUAL(NULL, gui_chat_string_add_offset (NULL, 1));
+
+    POINTERS_EQUAL(str_empty, gui_chat_string_add_offset (str_empty, -1));
+    POINTERS_EQUAL(str_empty, gui_chat_string_add_offset (str_empty, 0));
+    POINTERS_EQUAL(str_empty, gui_chat_string_add_offset (str_empty, 1));
+
+    POINTERS_EQUAL(str_noel, gui_chat_string_add_offset (str_noel, -1));
+    POINTERS_EQUAL(str_noel, gui_chat_string_add_offset (str_noel, 0));
+    POINTERS_EQUAL(str_noel + 1, gui_chat_string_add_offset (str_noel, 1));
+    POINTERS_EQUAL(str_noel + 2, gui_chat_string_add_offset (str_noel, 2));
+    POINTERS_EQUAL(str_noel + 4, gui_chat_string_add_offset (str_noel, 3));
+    POINTERS_EQUAL(str_noel + 5, gui_chat_string_add_offset (str_noel, 4));
+    POINTERS_EQUAL(str_noel + 5, gui_chat_string_add_offset (str_noel, 5));
+
+    POINTERS_EQUAL(str_other, gui_chat_string_add_offset (str_other, -1));
+    POINTERS_EQUAL(str_other, gui_chat_string_add_offset (str_other, 0));
+    POINTERS_EQUAL(str_other + 1, gui_chat_string_add_offset (str_other, 1));
+    POINTERS_EQUAL(str_other + 4, gui_chat_string_add_offset (str_other, 2));
+    POINTERS_EQUAL(str_other + 5, gui_chat_string_add_offset (str_other, 3));
+    POINTERS_EQUAL(str_other + 5, gui_chat_string_add_offset (str_other, 4));
+    POINTERS_EQUAL(str_other + 5, gui_chat_string_add_offset (str_other, 5));
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_string_add_offset_screen
+ */
+
+TEST(GuiChat, StringAddOffsetScreen)
+{
+    const char *str_empty = "";
+    const char *str_noel = "no\xc3\xabl";
+    const char *str_other = "A\xe2\xbb\xa9Z";
+
+    POINTERS_EQUAL(NULL, gui_chat_string_add_offset_screen (NULL, -1));
+    POINTERS_EQUAL(NULL, gui_chat_string_add_offset_screen (NULL, 0));
+    POINTERS_EQUAL(NULL, gui_chat_string_add_offset_screen (NULL, 1));
+
+    POINTERS_EQUAL(str_empty, gui_chat_string_add_offset_screen (str_empty, -1));
+    POINTERS_EQUAL(str_empty, gui_chat_string_add_offset_screen (str_empty, 0));
+    POINTERS_EQUAL(str_empty, gui_chat_string_add_offset_screen (str_empty, 1));
+
+    POINTERS_EQUAL(str_noel, gui_chat_string_add_offset_screen (str_noel, -1));
+    POINTERS_EQUAL(str_noel, gui_chat_string_add_offset_screen (str_noel, 0));
+    POINTERS_EQUAL(str_noel + 1, gui_chat_string_add_offset_screen (str_noel, 1));
+    POINTERS_EQUAL(str_noel + 2, gui_chat_string_add_offset_screen (str_noel, 2));
+    POINTERS_EQUAL(str_noel + 4, gui_chat_string_add_offset_screen (str_noel, 3));
+    POINTERS_EQUAL(str_noel + 5, gui_chat_string_add_offset_screen (str_noel, 4));
+    POINTERS_EQUAL(str_noel + 5, gui_chat_string_add_offset_screen (str_noel, 5));
+
+    POINTERS_EQUAL(str_other, gui_chat_string_add_offset_screen (str_other, -1));
+    POINTERS_EQUAL(str_other, gui_chat_string_add_offset_screen (str_other, 0));
+    POINTERS_EQUAL(str_other + 1, gui_chat_string_add_offset_screen (str_other, 1));
+    POINTERS_EQUAL(str_other + 1, gui_chat_string_add_offset_screen (str_other, 2));
+    POINTERS_EQUAL(str_other + 4, gui_chat_string_add_offset_screen (str_other, 3));
+    POINTERS_EQUAL(str_other + 5, gui_chat_string_add_offset_screen (str_other, 4));
+    POINTERS_EQUAL(str_other + 5, gui_chat_string_add_offset_screen (str_other, 5));
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_string_real_pos
+ */
+
+TEST(GuiChat, StringRealPos)
+{
+    LONGS_EQUAL(0, gui_chat_string_real_pos (NULL, -1, 0));
+    LONGS_EQUAL(0, gui_chat_string_real_pos (NULL, 0, 0));
+    LONGS_EQUAL(0, gui_chat_string_real_pos (NULL, 1, 0));
+
+    LONGS_EQUAL(0, gui_chat_string_real_pos ("", -1, 0));
+    LONGS_EQUAL(0, gui_chat_string_real_pos ("", 0, 0));
+    LONGS_EQUAL(0, gui_chat_string_real_pos ("", 1, 0));
+
+    LONGS_EQUAL(0, gui_chat_string_real_pos ("abc", 0, 0));
+    LONGS_EQUAL(1, gui_chat_string_real_pos ("abc", 1, 0));
+    LONGS_EQUAL(2, gui_chat_string_real_pos ("abc", 2, 0));
+
+    LONGS_EQUAL(0, gui_chat_string_real_pos ("no\xc3\xabl", 0, 0));
+    LONGS_EQUAL(1, gui_chat_string_real_pos ("no\xc3\xabl", 1, 0));
+    LONGS_EQUAL(2, gui_chat_string_real_pos ("no\xc3\xabl", 2, 0));
+
+    LONGS_EQUAL(0, gui_chat_string_real_pos ("\xe2\xbb\xa9", 0, 0));
+    LONGS_EQUAL(3, gui_chat_string_real_pos ("\xe2\xbb\xa9", 1, 0));
+    LONGS_EQUAL(3, gui_chat_string_real_pos ("\xe2\xbb\xa9", 2, 0));
+
+    LONGS_EQUAL(0, gui_chat_string_real_pos ("\xe2\xbb\xa9", 0, 1));
+    LONGS_EQUAL(0, gui_chat_string_real_pos ("\xe2\xbb\xa9", 1, 1));
+    LONGS_EQUAL(3, gui_chat_string_real_pos ("\xe2\xbb\xa9", 2, 1));
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_string_pos
+ */
+
+TEST(GuiChat, StringPos)
+{
+    LONGS_EQUAL(0, gui_chat_string_pos (NULL, -1));
+    LONGS_EQUAL(0, gui_chat_string_pos (NULL, 0));
+    LONGS_EQUAL(0, gui_chat_string_pos (NULL, 1));
+
+    LONGS_EQUAL(0, gui_chat_string_pos ("", -1));
+    LONGS_EQUAL(0, gui_chat_string_pos ("", 0));
+    LONGS_EQUAL(0, gui_chat_string_pos ("", 1));
+
+    LONGS_EQUAL(0, gui_chat_string_pos ("abc", 0));
+    LONGS_EQUAL(1, gui_chat_string_pos ("abc", 1));
+    LONGS_EQUAL(2, gui_chat_string_pos ("abc", 2));
+
+    LONGS_EQUAL(0, gui_chat_string_pos ("no\xc3\xabl", 0));
+    LONGS_EQUAL(1, gui_chat_string_pos ("no\xc3\xabl", 1));
+    LONGS_EQUAL(2, gui_chat_string_pos ("no\xc3\xabl", 2));
+
+    LONGS_EQUAL(0, gui_chat_string_pos ("\xe2\xbb\xa9", 0));
+    LONGS_EQUAL(1, gui_chat_string_pos ("\xe2\xbb\xa9", 1));
+    LONGS_EQUAL(1, gui_chat_string_pos ("\xe2\xbb\xa9", 2));
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_get_word_info
+ */
+
+TEST(GuiChat, GetWordInfo)
+{
+    int word_start_offset, word_end_offset, word_length_with_spaces;
+    int word_length;
+
+    WEE_GET_WORD_INFO (0, 0, 0, -1, NULL);
+    WEE_GET_WORD_INFO (0, 0, 0, -1, "");
+    WEE_GET_WORD_INFO (0, 0, 1, 1, "a");
+    WEE_GET_WORD_INFO (0, 2, 3, 3, "abc");
+    WEE_GET_WORD_INFO (2, 4, 5, 3, "  abc");
+    WEE_GET_WORD_INFO (2, 4, 5, 3, "  abc  ");
+    WEE_GET_WORD_INFO (0, 4, 5, 5, "first second");
+    WEE_GET_WORD_INFO (1, 5, 6, 5, " first second");
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_get_time_string
+ */
+
+TEST(GuiChat, GetTimeString)
+{
+    /* TODO: write tests */
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_get_time_length
+ */
+
+TEST(GuiChat, GetTimeLength)
+{
+    /* TODO: write tests */
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_change_time_format
+ */
+
+TEST(GuiChat, ChangeTimeFormat)
+{
+    /* TODO: write tests */
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_buffer_valid
+ */
+
+TEST(GuiChat, BufferValid)
+{
+    /* TODO: write tests */
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_add_line_waiting_buffer
+ */
+
+TEST(GuiChat, AddLineWaitingBuffer)
+{
+    /* TODO: write tests */
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_print_lines_waiting_buffer
+ */
+
+TEST(GuiChat, PrintLinesWaitingBuffer)
+{
+    /* TODO: write tests */
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_printf_date_tags_internal
+ *   gui_chat_printf_date_tags
+ */
+
+TEST(GuiChat, PrintDateTags)
+{
+    struct t_gui_line *ptr_last_line;
+    struct t_gui_line_data *ptr_data;
+
+    /* invalid buffer */
+    ptr_last_line = gui_buffers->own_lines->last_line;
+    gui_chat_printf ((struct t_gui_buffer *)0x1, "test");
+    POINTERS_EQUAL(ptr_last_line, gui_buffers->own_lines->last_line);
+
+    /* NULL message */
+    ptr_last_line = gui_buffers->own_lines->last_line;
+    gui_chat_printf (gui_buffers, NULL);
+    POINTERS_EQUAL(ptr_last_line, gui_buffers->own_lines->last_line);
+
+    /* empty message */
+    ptr_last_line = gui_buffers->own_lines->last_line;
+    gui_chat_printf (gui_buffers, "");
+    CHECK(ptr_last_line != gui_buffers->own_lines->last_line);
+    ptr_data = gui_buffers->own_lines->last_line->data;
+    CHECK(ptr_data);
+    POINTERS_EQUAL(gui_buffers, ptr_data->buffer);
+    LONGS_EQUAL(-1, ptr_data->y);
+    CHECK(ptr_data->date > 0);
+    CHECK(ptr_data->date == ptr_data->date_printed);
+    CHECK(ptr_data->str_time && ptr_data->str_time[0]);
+    LONGS_EQUAL(0, ptr_data->tags_count);
+    POINTERS_EQUAL(NULL, ptr_data->tags_array);
+    LONGS_EQUAL(1, ptr_data->displayed);
+    LONGS_EQUAL(0, ptr_data->notify_level);
+    LONGS_EQUAL(0, ptr_data->highlight);
+    LONGS_EQUAL(0, ptr_data->refresh_needed);
+    STRCMP_EQUAL("", ptr_data->prefix);
+    LONGS_EQUAL(0, ptr_data->prefix_length);
+    STRCMP_EQUAL("", ptr_data->message);
+
+    /* message (no prefix) */
+    ptr_last_line = gui_buffers->own_lines->last_line;
+    gui_chat_printf (gui_buffers, "this is a test");
+    CHECK(ptr_last_line != gui_buffers->own_lines->last_line);
+    ptr_data = gui_buffers->own_lines->last_line->data;
+    CHECK(ptr_data);
+    POINTERS_EQUAL(gui_buffers, ptr_data->buffer);
+    LONGS_EQUAL(-1, ptr_data->y);
+    CHECK(ptr_data->date > 0);
+    CHECK(ptr_data->date == ptr_data->date_printed);
+    CHECK(ptr_data->str_time && ptr_data->str_time[0]);
+    LONGS_EQUAL(0, ptr_data->tags_count);
+    POINTERS_EQUAL(NULL, ptr_data->tags_array);
+    LONGS_EQUAL(1, ptr_data->displayed);
+    LONGS_EQUAL(0, ptr_data->notify_level);
+    LONGS_EQUAL(0, ptr_data->highlight);
+    LONGS_EQUAL(0, ptr_data->refresh_needed);
+    STRCMP_EQUAL("", ptr_data->prefix);
+    LONGS_EQUAL(0, ptr_data->prefix_length);
+    STRCMP_EQUAL("this is a test", ptr_data->message);
+
+    /* message with prefix */
+    ptr_last_line = gui_buffers->own_lines->last_line;
+    gui_chat_printf (gui_buffers, "nick\tthis is a test");
+    CHECK(ptr_last_line != gui_buffers->own_lines->last_line);
+    ptr_data = gui_buffers->own_lines->last_line->data;
+    CHECK(ptr_data);
+    POINTERS_EQUAL(gui_buffers, ptr_data->buffer);
+    LONGS_EQUAL(-1, ptr_data->y);
+    CHECK(ptr_data->date > 0);
+    CHECK(ptr_data->date == ptr_data->date_printed);
+    CHECK(ptr_data->str_time && ptr_data->str_time[0]);
+    LONGS_EQUAL(0, ptr_data->tags_count);
+    POINTERS_EQUAL(NULL, ptr_data->tags_array);
+    LONGS_EQUAL(1, ptr_data->displayed);
+    LONGS_EQUAL(0, ptr_data->notify_level);
+    LONGS_EQUAL(0, ptr_data->highlight);
+    LONGS_EQUAL(0, ptr_data->refresh_needed);
+    STRCMP_EQUAL("nick", ptr_data->prefix);
+    LONGS_EQUAL(4, ptr_data->prefix_length);
+    STRCMP_EQUAL("this is a test", ptr_data->message);
+
+    /* message with prefix */
+    ptr_last_line = gui_buffers->own_lines->last_line;
+    gui_chat_printf (gui_buffers, "nick\tthis is a test");
+    CHECK(ptr_last_line != gui_buffers->own_lines->last_line);
+    ptr_data = gui_buffers->own_lines->last_line->data;
+    CHECK(ptr_data);
+    POINTERS_EQUAL(gui_buffers, ptr_data->buffer);
+    LONGS_EQUAL(-1, ptr_data->y);
+    CHECK(ptr_data->date > 0);
+    CHECK(ptr_data->date == ptr_data->date_printed);
+    CHECK(ptr_data->str_time && ptr_data->str_time[0]);
+    LONGS_EQUAL(0, ptr_data->tags_count);
+    POINTERS_EQUAL(NULL, ptr_data->tags_array);
+    LONGS_EQUAL(1, ptr_data->displayed);
+    LONGS_EQUAL(0, ptr_data->notify_level);
+    LONGS_EQUAL(0, ptr_data->highlight);
+    LONGS_EQUAL(0, ptr_data->refresh_needed);
+    STRCMP_EQUAL("nick", ptr_data->prefix);
+    LONGS_EQUAL(4, ptr_data->prefix_length);
+    STRCMP_EQUAL("this is a test", ptr_data->message);
+
+    /* message with ignored prefix (space + tab) */
+    ptr_last_line = gui_buffers->own_lines->last_line;
+    gui_chat_printf (gui_buffers, " \tthis is a test");
+    CHECK(ptr_last_line != gui_buffers->own_lines->last_line);
+    ptr_data = gui_buffers->own_lines->last_line->data;
+    CHECK(ptr_data);
+    POINTERS_EQUAL(gui_buffers, ptr_data->buffer);
+    LONGS_EQUAL(-1, ptr_data->y);
+    CHECK(ptr_data->date > 0);
+    CHECK(ptr_data->date == ptr_data->date_printed);
+    CHECK(ptr_data->str_time && ptr_data->str_time[0]);
+    LONGS_EQUAL(0, ptr_data->tags_count);
+    POINTERS_EQUAL(NULL, ptr_data->tags_array);
+    LONGS_EQUAL(1, ptr_data->displayed);
+    LONGS_EQUAL(0, ptr_data->notify_level);
+    LONGS_EQUAL(0, ptr_data->highlight);
+    LONGS_EQUAL(0, ptr_data->refresh_needed);
+    STRCMP_EQUAL("", ptr_data->prefix);
+    LONGS_EQUAL(0, ptr_data->prefix_length);
+    STRCMP_EQUAL("this is a test", ptr_data->message);
+
+    /* message with no time displayed (two tabs) */
+    ptr_last_line = gui_buffers->own_lines->last_line;
+    gui_chat_printf (gui_buffers, "\t\tthis is a test");
+    CHECK(ptr_last_line != gui_buffers->own_lines->last_line);
+    ptr_data = gui_buffers->own_lines->last_line->data;
+    CHECK(ptr_data);
+    POINTERS_EQUAL(gui_buffers, ptr_data->buffer);
+    LONGS_EQUAL(-1, ptr_data->y);
+    LONGS_EQUAL(0, ptr_data->date);
+    CHECK(ptr_data->date_printed > 0);
+    POINTERS_EQUAL(NULL, ptr_data->str_time);
+    LONGS_EQUAL(0, ptr_data->tags_count);
+    POINTERS_EQUAL(NULL, ptr_data->tags_array);
+    LONGS_EQUAL(1, ptr_data->displayed);
+    LONGS_EQUAL(0, ptr_data->notify_level);
+    LONGS_EQUAL(0, ptr_data->highlight);
+    LONGS_EQUAL(0, ptr_data->refresh_needed);
+    POINTERS_EQUAL(NULL, ptr_data->prefix);
+    LONGS_EQUAL(0, ptr_data->prefix_length);
+    STRCMP_EQUAL("this is a test", ptr_data->message);
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_printf_y
+ */
+
+TEST(GuiChat, PrintY)
+{
+    struct t_gui_buffer *buffer;
+    struct t_gui_line_data *ptr_data;
+
+    buffer = gui_buffer_new (NULL, "test", NULL, NULL, NULL, NULL, NULL, NULL);
+    CHECK(buffer);
+    gui_buffer_set (buffer, "type", "free");
+
+    /* invalid buffer pointer */
+    gui_chat_printf_y ((struct t_gui_buffer *)0x1, 0, "test");
+    POINTERS_EQUAL(NULL, buffer->own_lines->last_line);
+
+    /* invalid buffer: not with free content */
+    gui_chat_printf_y (gui_buffers, 0, "test");
+    POINTERS_EQUAL(NULL, buffer->own_lines->last_line);
+
+    /* NULL message */
+    gui_chat_printf_y (buffer, 0, NULL);
+    POINTERS_EQUAL(NULL, buffer->own_lines->last_line);
+
+    /* empty message */
+    gui_chat_printf_y (buffer, 0, "");
+    POINTERS_EQUAL(NULL, buffer->own_lines->last_line);
+
+    /* message on first line */
+    gui_chat_printf_y (buffer, 0, "this is a test on line 1");
+    CHECK(buffer->own_lines->last_line);
+    ptr_data = buffer->own_lines->last_line->data;
+    CHECK(ptr_data);
+    POINTERS_EQUAL(buffer, ptr_data->buffer);
+    LONGS_EQUAL(0, ptr_data->y);
+    LONGS_EQUAL(0, ptr_data->date);
+    LONGS_EQUAL(0, ptr_data->date_printed);
+    POINTERS_EQUAL(NULL, ptr_data->str_time);
+    LONGS_EQUAL(0, ptr_data->tags_count);
+    POINTERS_EQUAL(NULL, ptr_data->tags_array);
+    LONGS_EQUAL(1, ptr_data->displayed);
+    LONGS_EQUAL(0, ptr_data->notify_level);
+    LONGS_EQUAL(0, ptr_data->highlight);
+    LONGS_EQUAL(1, ptr_data->refresh_needed);
+    POINTERS_EQUAL(NULL, ptr_data->prefix);
+    LONGS_EQUAL(0, ptr_data->prefix_length);
+    STRCMP_EQUAL("this is a test on line 1", ptr_data->message);
+
+    /* message on third line */
+    gui_chat_printf_y (buffer, 2, "this is a test on line 3");
+    CHECK(buffer->own_lines->last_line);
+    ptr_data = buffer->own_lines->last_line->data;
+    CHECK(ptr_data);
+    POINTERS_EQUAL(buffer, ptr_data->buffer);
+    LONGS_EQUAL(2, ptr_data->y);
+    LONGS_EQUAL(0, ptr_data->date);
+    LONGS_EQUAL(0, ptr_data->date_printed);
+    POINTERS_EQUAL(NULL, ptr_data->str_time);
+    LONGS_EQUAL(0, ptr_data->tags_count);
+    POINTERS_EQUAL(NULL, ptr_data->tags_array);
+    LONGS_EQUAL(1, ptr_data->displayed);
+    LONGS_EQUAL(0, ptr_data->notify_level);
+    LONGS_EQUAL(0, ptr_data->highlight);
+    LONGS_EQUAL(1, ptr_data->refresh_needed);
+    POINTERS_EQUAL(NULL, ptr_data->prefix);
+    LONGS_EQUAL(0, ptr_data->prefix_length);
+    STRCMP_EQUAL("this is a test on line 3", ptr_data->message);
+
+    /* delete first line */
+    gui_chat_printf_y (buffer, 0, "");
+    ptr_data = buffer->own_lines->first_line->data;
+    CHECK(ptr_data);
+    POINTERS_EQUAL(buffer, ptr_data->buffer);
+    LONGS_EQUAL(0, ptr_data->y);
+    LONGS_EQUAL(0, ptr_data->date);
+    LONGS_EQUAL(0, ptr_data->date_printed);
+    POINTERS_EQUAL(NULL, ptr_data->str_time);
+    LONGS_EQUAL(0, ptr_data->tags_count);
+    POINTERS_EQUAL(NULL, ptr_data->tags_array);
+    LONGS_EQUAL(1, ptr_data->displayed);
+    LONGS_EQUAL(0, ptr_data->notify_level);
+    LONGS_EQUAL(0, ptr_data->highlight);
+    LONGS_EQUAL(1, ptr_data->refresh_needed);
+    POINTERS_EQUAL(NULL, ptr_data->prefix);
+    LONGS_EQUAL(0, ptr_data->prefix_length);
+    STRCMP_EQUAL("", ptr_data->message);
+
+    /* delete third line */
+    gui_chat_printf_y (buffer, 2, "");
+    CHECK(buffer->own_lines->first_line);
+    CHECK(buffer->own_lines->first_line->next_line);
+    POINTERS_EQUAL(NULL, buffer->own_lines->first_line->next_line->next_line);
+
+    /* delete secondline */
+    gui_chat_printf_y (buffer, 1, "");
+    CHECK(buffer->own_lines->first_line);
+    POINTERS_EQUAL(NULL, buffer->own_lines->first_line->next_line);
+
+    gui_buffer_close (buffer);
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_hsignal_quote_line_cb
+ */
+
+TEST(GuiChat, HsignalQuoteLineCb)
+{
+    /* TODO: write tests */
+}
+
+/*
+ * Tests functions:
+ *   gui_chat_end
+ */
+
+TEST(GuiChat, ChatEnd)
+{
+    /* TODO: write tests */
+}