Userland: Add test-gfx-font for Gfx::Font tests

Author: https://github.com/bcoles
Commit: https://github.com/SerenityOS/serenity/commit/664322d34b4
Pull-request: https://github.com/SerenityOS/serenity/pull/4077

Userland/CMakeLists.txt

@@ -38,6 +38,7 @@ target_link_libraries(su LibCrypt)
 target_link_libraries(tar LibTar LibCompress)
 target_link_libraries(test-crypto LibCrypto LibTLS LibLine)
 target_link_libraries(test-compress LibCompress)
+target_link_libraries(test-gfx-font LibGUI LibCore)
 target_link_libraries(test-js LibJS LibLine LibCore)
 target_link_libraries(test-web LibWeb)
 target_link_libraries(tt LibPthread)

Userland/test-gfx-font.cpp

@@ -0,0 +1,169 @@
+/*
+ * Copyright (c) 2020, the SerenityOS developers.
+ * 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 POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <LibGfx/Font.h>
+#include <LibGfx/FontDatabase.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static void test_fontdatabase_get_by_name()
+{
+    const char* name = "Liza 10 400";
+    auto& font_database = Gfx::FontDatabase::the();
+    assert(!font_database.get_by_name(name)->name().is_null());
+}
+
+static void test_fontdatabase_for_each_font()
+{
+    auto& font_database = Gfx::FontDatabase::the();
+    font_database.for_each_font([&](const Gfx::Font& font) {
+        assert(!font.name().is_null());
+        assert(!font.qualified_name().is_null());
+        assert(!font.family().is_null());
+        assert(font.glyph_count() > 0);
+    });
+}
+
+static void test_default_font()
+{
+    assert(!Gfx::Font::default_font().name().is_null());
+}
+
+static void test_default_fixed_width_font()
+{
+    assert(!Gfx::Font::default_font().name().is_null());
+}
+
+static void test_default_bold_fixed_width_font()
+{
+    assert(!Gfx::Font::default_font().name().is_null());
+}
+
+static void test_default_bold_font()
+{
+    assert(!Gfx::Font::default_font().name().is_null());
+}
+
+static void test_clone()
+{
+    u8 glyph_height = 1;
+    u8 glyph_width = 1;
+    auto font = Gfx::Font::create(glyph_height, glyph_width, true, Gfx::FontTypes::Default);
+
+    auto new_font = font->clone();
+    assert(!new_font->name().is_null());
+    assert(!new_font->qualified_name().is_null());
+    assert(!new_font->family().is_null());
+    assert(new_font->glyph_count() > 0);
+}
+
+static void test_set_name()
+{
+    u8 glyph_height = 1;
+    u8 glyph_width = 1;
+    auto font = Gfx::Font::create(glyph_height, glyph_width, true, Gfx::FontTypes::Default);
+
+    const char* name = "my newly created font";
+    font->set_name(name);
+
+    assert(!font->qualified_name().is_null());
+    assert(!font->qualified_name().contains(name));
+}
+
+static void test_set_type()
+{
+    u8 glyph_height = 1;
+    u8 glyph_width = 1;
+    auto font = Gfx::Font::create(glyph_height, glyph_width, true, Gfx::FontTypes::Default);
+
+    auto type = Gfx::FontTypes::Default;
+    font->set_type(type);
+
+    assert(font->type() == type);
+}
+
+static void test_width()
+{
+    u8 glyph_height = 1;
+    u8 glyph_width = 1;
+    auto font = Gfx::Font::create(glyph_height, glyph_width, true, Gfx::FontTypes::Default);
+
+    assert(font->width("A") == glyph_width);
+}
+
+static void test_glyph_or_emoji_width()
+{
+    u8 glyph_height = 1;
+    u8 glyph_width = 1;
+    auto font = Gfx::Font::create(glyph_height, glyph_width, true, Gfx::FontTypes::Default);
+    font->set_type(Gfx::FontTypes::Default);
+
+    assert(font->glyph_or_emoji_width(0));
+}
+
+static void test_load_from_file()
+{
+    auto font = Gfx::Font::load_from_file("/res/fonts/PebbletonBold14.font");
+    assert(!font->name().is_null());
+}
+
+static void test_write_to_file()
+{
+    u8 glyph_height = 1;
+    u8 glyph_width = 1;
+    auto font = Gfx::Font::create(glyph_height, glyph_width, true, Gfx::FontTypes::Default);
+
+    const char* font_path = "/tmp/new.font";
+    assert(font->write_to_file(font_path));
+    unlink(font_path);
+}
+
+int main(int, char**)
+{
+#define RUNTEST(x)                      \
+    {                                   \
+        printf("Running " #x " ...\n"); \
+        x();                            \
+        printf("Success!\n");           \
+    }
+    RUNTEST(test_fontdatabase_get_by_name);
+    RUNTEST(test_fontdatabase_for_each_font);
+    RUNTEST(test_default_font);
+    RUNTEST(test_default_fixed_width_font);
+    RUNTEST(test_default_bold_fixed_width_font);
+    RUNTEST(test_default_bold_font);
+    RUNTEST(test_clone);
+    RUNTEST(test_set_name);
+    RUNTEST(test_set_type);
+    RUNTEST(test_width);
+    RUNTEST(test_glyph_or_emoji_width);
+    RUNTEST(test_load_from_file);
+    RUNTEST(test_write_to_file);
+    printf("PASS\n");
+
+    return 0;
+}