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godot/tests/test_text_server.h

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/*************************************************************************/
/* test_text_server.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifdef TOOLS_ENABLED
#ifndef TEST_TEXT_SERVER_H
#define TEST_TEXT_SERVER_H
#include "editor/builtin_fonts.gen.h"
#include "servers/text_server.h"
#include "tests/test_macros.h"
namespace TestTextServer {
TEST_SUITE("[[TextServer]") {
TEST_CASE("[TextServer] Init, font loading and shaping") {
TextServerManager *tsman = memnew(TextServerManager);
Error err = OK;
SUBCASE("[TextServer] Init") {
for (int i = 0; i < TextServerManager::get_interface_count(); i++) {
TextServer *ts = TextServerManager::initialize(i, err);
TEST_FAIL_COND((err != OK || ts == nullptr), "Text server ", TextServerManager::get_interface_name(i), " init failed.");
}
}
SUBCASE("[TextServer] Loading fonts") {
for (int i = 0; i < TextServerManager::get_interface_count(); i++) {
TextServer *ts = TextServerManager::initialize(i, err);
RID font = ts->create_font_memory(_font_NotoSans_Regular, _font_NotoSans_Regular_size, "ttf");
TEST_FAIL_COND(font == RID(), "Loading font failed.");
ts->free(font);
}
}
SUBCASE("[TextServer] Text layout: Font fallback") {
for (int i = 0; i < TextServerManager::get_interface_count(); i++) {
TextServer *ts = TextServerManager::initialize(i, err);
Vector<RID> font;
font.push_back(ts->create_font_memory(_font_NotoSans_Regular, _font_NotoSans_Regular_size, "ttf"));
font.push_back(ts->create_font_memory(_font_NotoSansThaiUI_Regular, _font_NotoSansThaiUI_Regular_size, "ttf"));
String test = U"คนอ้วน khon uan ראה";
// 6^ 17^
RID ctx = ts->create_shaped_text();
TEST_FAIL_COND(ctx == RID(), "Creating text buffer failed.");
bool ok = ts->shaped_text_add_string(ctx, test, font, 16);
TEST_FAIL_COND(!ok, "Adding text to the buffer failed.");
Vector<TextServer::Glyph> glyphs = ts->shaped_text_get_glyphs(ctx);
TEST_FAIL_COND(glyphs.size() == 0, "Shaping failed");
for (int j = 0; j < glyphs.size(); j++) {
if (glyphs[j].start < 6) {
TEST_FAIL_COND(glyphs[j].font_rid != font[1], "Incorrect font selected.");
}
if ((glyphs[j].start > 6) && (glyphs[j].start < 16)) {
TEST_FAIL_COND(glyphs[j].font_rid != font[0], "Incorrect font selected.");
}
if (glyphs[j].start > 16) {
TEST_FAIL_COND(glyphs[j].font_rid != RID(), "Incorrect font selected.");
TEST_FAIL_COND(glyphs[j].index != test[glyphs[j].start], "Incorrect glyph index.");
}
TEST_FAIL_COND((glyphs[j].start < 0 || glyphs[j].end > test.length()), "Incorrect glyph range.");
TEST_FAIL_COND(glyphs[j].font_size != 16, "Incorrect glyph font size.");
}
ts->free(ctx);
for (int j = 0; j < font.size(); j++) {
ts->free(font[j]);
}
font.clear();
}
}
SUBCASE("[TextServer] Text layout: BiDi") {
for (int i = 0; i < TextServerManager::get_interface_count(); i++) {
TextServer *ts = TextServerManager::initialize(i, err);
if (!ts->has_feature(TextServer::FEATURE_BIDI_LAYOUT)) {
continue;
}
Vector<RID> font;
font.push_back(ts->create_font_memory(_font_NotoSans_Regular, _font_NotoSans_Regular_size, "ttf"));
font.push_back(ts->create_font_memory(_font_NotoNaskhArabicUI_Regular, _font_NotoNaskhArabicUI_Regular_size, "ttf"));
String test = U"Arabic (اَلْعَرَبِيَّةُ, al-ʿarabiyyah)";
// 7^ 26^
RID ctx = ts->create_shaped_text();
TEST_FAIL_COND(ctx == RID(), "Creating text buffer failed.");
bool ok = ts->shaped_text_add_string(ctx, test, font, 16);
TEST_FAIL_COND(!ok, "Adding text to the buffer failed.");
Vector<TextServer::Glyph> glyphs = ts->shaped_text_get_glyphs(ctx);
TEST_FAIL_COND(glyphs.size() == 0, "Shaping failed");
for (int j = 0; j < glyphs.size(); j++) {
if (glyphs[j].count > 0) {
if (glyphs[j].start < 7) {
TEST_FAIL_COND(((glyphs[j].flags & TextServer::GRAPHEME_IS_RTL) == TextServer::GRAPHEME_IS_RTL), "Incorrect direction.");
}
if ((glyphs[j].start > 8) && (glyphs[j].start < 23)) {
TEST_FAIL_COND(((glyphs[j].flags & TextServer::GRAPHEME_IS_RTL) != TextServer::GRAPHEME_IS_RTL), "Incorrect direction.");
}
if (glyphs[j].start > 26) {
TEST_FAIL_COND(((glyphs[j].flags & TextServer::GRAPHEME_IS_RTL) == TextServer::GRAPHEME_IS_RTL), "Incorrect direction.");
}
}
}
ts->free(ctx);
for (int j = 0; j < font.size(); j++) {
ts->free(font[j]);
}
font.clear();
}
}
SUBCASE("[TextServer] Text layout: Line breaking") {
for (int i = 0; i < TextServerManager::get_interface_count(); i++) {
TextServer *ts = TextServerManager::initialize(i, err);
String test_1 = U"test test test";
// 5^ 10^
Vector<RID> font;
font.push_back(ts->create_font_memory(_font_NotoSans_Regular, _font_NotoSans_Regular_size, "ttf"));
font.push_back(ts->create_font_memory(_font_NotoSansThaiUI_Regular, _font_NotoSansThaiUI_Regular_size, "ttf"));
RID ctx = ts->create_shaped_text();
TEST_FAIL_COND(ctx == RID(), "Creating text buffer failed.");
bool ok = ts->shaped_text_add_string(ctx, test_1, font, 16);
TEST_FAIL_COND(!ok, "Adding text to the buffer failed.");
Vector<Vector2i> brks = ts->shaped_text_get_line_breaks(ctx, 1);
TEST_FAIL_COND(brks.size() != 3, "Invalid line breaks number.");
if (brks.size() == 3) {
TEST_FAIL_COND(brks[0] != Vector2i(0, 5), "Invalid line break position.");
TEST_FAIL_COND(brks[1] != Vector2i(5, 10), "Invalid line break position.");
TEST_FAIL_COND(brks[2] != Vector2i(10, 14), "Invalid line break position.");
}
ts->free(ctx);
for (int j = 0; j < font.size(); j++) {
ts->free(font[j]);
}
font.clear();
}
}
SUBCASE("[TextServer] Text layout: Justification") {
for (int i = 0; i < TextServerManager::get_interface_count(); i++) {
TextServer *ts = TextServerManager::initialize(i, err);
Vector<RID> font;
font.push_back(ts->create_font_memory(_font_NotoSans_Regular, _font_NotoSans_Regular_size, "ttf"));
font.push_back(ts->create_font_memory(_font_NotoNaskhArabicUI_Regular, _font_NotoNaskhArabicUI_Regular_size, "ttf"));
String test_1 = U"الحمد";
String test_2 = U"الحمد test";
String test_3 = U"test test";
// 7^ 26^
RID ctx;
bool ok;
float width_old, width;
if (ts->has_feature(TextServer::FEATURE_KASHIDA_JUSTIFICATION)) {
ctx = ts->create_shaped_text();
TEST_FAIL_COND(ctx == RID(), "Creating text buffer failed.");
ok = ts->shaped_text_add_string(ctx, test_1, font, 16);
TEST_FAIL_COND(!ok, "Adding text to the buffer failed.");
width_old = ts->shaped_text_get_width(ctx);
width = ts->shaped_text_fit_to_width(ctx, 100, TextServer::JUSTIFICATION_WORD_BOUND);
TEST_FAIL_COND((width != width_old), "Invalid fill width.");
width = ts->shaped_text_fit_to_width(ctx, 100, TextServer::JUSTIFICATION_WORD_BOUND | TextServer::JUSTIFICATION_KASHIDA);
TEST_FAIL_COND((width <= width_old || width > 100), "Invalid fill width.");
ts->free(ctx);
ctx = ts->create_shaped_text();
TEST_FAIL_COND(ctx == RID(), "Creating text buffer failed.");
ok = ts->shaped_text_add_string(ctx, test_2, font, 16);
TEST_FAIL_COND(!ok, "Adding text to the buffer failed.");
width_old = ts->shaped_text_get_width(ctx);
width = ts->shaped_text_fit_to_width(ctx, 100, TextServer::JUSTIFICATION_WORD_BOUND);
TEST_FAIL_COND((width <= width_old || width > 100), "Invalid fill width.");
width = ts->shaped_text_fit_to_width(ctx, 100, TextServer::JUSTIFICATION_WORD_BOUND | TextServer::JUSTIFICATION_KASHIDA);
TEST_FAIL_COND((width <= width_old || width > 100), "Invalid fill width.");
ts->free(ctx);
}
ctx = ts->create_shaped_text();
TEST_FAIL_COND(ctx == RID(), "Creating text buffer failed.");
ok = ts->shaped_text_add_string(ctx, test_3, font, 16);
TEST_FAIL_COND(!ok, "Adding text to the buffer failed.");
width_old = ts->shaped_text_get_width(ctx);
width = ts->shaped_text_fit_to_width(ctx, 100, TextServer::JUSTIFICATION_WORD_BOUND);
TEST_FAIL_COND((width <= width_old || width > 100), "Invalid fill width.");
ts->free(ctx);
for (int j = 0; j < font.size(); j++) {
ts->free(font[j]);
}
font.clear();
}
}
memdelete(tsman);
}
}
}; // namespace TestTextServer
#endif // TEST_TEXT_SERVER_H
#endif // TOOLS_ENABLED
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