From 51e38f51d43fb365c51b5645746901fb2049ab45 Mon Sep 17 00:00:00 2001
From: Chris Thrasher <chrisjthrasher@gmail.com>
Date: Mon, 25 Nov 2024 12:12:03 -0700
Subject: [PATCH] Add tests for `sf::Utf`

---
 test/CMakeLists.txt      |   1 +
 test/System/Utf.test.cpp | 240 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 241 insertions(+)
 create mode 100644 test/System/Utf.test.cpp

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index f83c8110f..d6512999b 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -61,6 +61,7 @@ set(SYSTEM_SRC
     System/Sleep.test.cpp
     System/String.test.cpp
     System/Time.test.cpp
+    System/Utf.test.cpp
     System/Vector2.test.cpp
     System/Vector3.test.cpp
 )
diff --git a/test/System/Utf.test.cpp b/test/System/Utf.test.cpp
new file mode 100644
index 000000000..67309a3b6
--- /dev/null
+++ b/test/System/Utf.test.cpp
@@ -0,0 +1,240 @@
+#include <SFML/System/Utf.hpp>
+
+#include <catch2/catch_test_macros.hpp>
+
+#include <string_view>
+
+using namespace std::string_view_literals;
+
+TEST_CASE("[System] sf::Utf8")
+{
+    static constexpr std::string_view input = "Hello, World!"sv;
+
+    SECTION("decode")
+    {
+        std::u32string output;
+        std::uint32_t  character = 0;
+        for (std::string_view::const_iterator begin = input.begin(); begin < input.end();)
+        {
+            begin = sf::Utf8::decode(begin, input.end(), character);
+            output.push_back(character);
+        }
+        CHECK(output == U"Hello, World!"sv);
+    }
+
+    SECTION("encode")
+    {
+    }
+
+    SECTION("next")
+    {
+    }
+
+    SECTION("count")
+    {
+    }
+
+    SECTION("fromAnsi")
+    {
+    }
+
+    SECTION("fromWide")
+    {
+    }
+
+    SECTION("fromLatin1")
+    {
+    }
+
+    SECTION("toAnsi")
+    {
+    }
+
+    SECTION("toWide")
+    {
+    }
+
+    SECTION("toLatin1")
+    {
+    }
+
+    SECTION("toUtf8")
+    {
+        std::string output;
+        sf::Utf8::toUtf8(input.begin(), input.end(), std::back_inserter(output));
+        CHECK(output == input);
+    }
+
+    SECTION("toUtf16")
+    {
+    }
+
+    SECTION("toUtf32")
+    {
+    }
+}
+
+TEST_CASE("[System] sf::Utf16")
+{
+    static constexpr std::u16string_view input = u"Hello, World!"sv;
+
+    SECTION("decode")
+    {
+    }
+
+    SECTION("encode")
+    {
+    }
+
+    SECTION("next")
+    {
+    }
+
+    SECTION("count")
+    {
+    }
+
+    SECTION("fromAnsi")
+    {
+    }
+
+    SECTION("fromWide")
+    {
+    }
+
+    SECTION("fromLatin1")
+    {
+        std::u16string output;
+        sf::Utf16::fromLatin1(input.begin(), input.end(), std::back_inserter(output));
+        CHECK(output == input);
+    }
+
+    SECTION("toAnsi")
+    {
+    }
+
+    SECTION("toWide")
+    {
+    }
+
+    SECTION("toLatin1")
+    {
+        std::string output;
+        sf::Utf16::toLatin1(input.begin(), input.end(), std::back_inserter(output));
+        CHECK(output == "Hello, World!"sv);
+    }
+
+    SECTION("toUtf8")
+    {
+    }
+
+    SECTION("toUtf16")
+    {
+        std::u16string output;
+        sf::Utf16::toUtf16(input.begin(), input.end(), std::back_inserter(output));
+        CHECK(output == input);
+    }
+
+    SECTION("toUtf32")
+    {
+    }
+}
+
+TEST_CASE("[System] sf::Utf32")
+{
+    static constexpr std::u32string_view input = U"Hello, World!"sv;
+
+    SECTION("decode")
+    {
+        std::u32string output;
+        std::uint32_t  character = 0;
+        for (std::u32string_view::const_iterator begin = input.begin(); begin < input.end();)
+        {
+            begin = sf::Utf32::decode(begin, {}, character);
+            output.push_back(character);
+        }
+        CHECK(output == input);
+    }
+
+    SECTION("encode")
+    {
+        std::u32string output;
+        for (const auto character : input)
+            sf::Utf32::encode(character, std::back_inserter(output));
+        CHECK(output == input);
+    }
+
+    SECTION("next")
+    {
+        CHECK(sf::Utf32::next(input.begin(), {}) == std::next(input.begin()));
+    }
+
+    SECTION("count")
+    {
+        CHECK(sf::Utf32::count(input.begin(), input.end()) == input.size());
+    }
+
+    SECTION("fromAnsi")
+    {
+    }
+
+    SECTION("fromWide")
+    {
+    }
+
+    SECTION("fromLatin1")
+    {
+        std::u32string output;
+        sf::Utf32::fromLatin1(input.begin(), input.end(), std::back_inserter(output));
+        CHECK(output == input);
+    }
+
+    SECTION("toAnsi")
+    {
+    }
+
+    SECTION("toWide")
+    {
+    }
+
+    SECTION("toLatin1")
+    {
+        std::string output;
+        sf::Utf32::toLatin1(input.begin(), input.end(), std::back_inserter(output));
+        CHECK(output == "Hello, World!");
+    }
+
+    SECTION("toUtf8")
+    {
+    }
+
+    SECTION("toUtf16")
+    {
+    }
+
+    SECTION("toUtf32")
+    {
+        std::u32string output;
+        sf::Utf32::toUtf32(input.begin(), input.end(), std::back_inserter(output));
+        CHECK(output == input);
+    }
+
+    SECTION("decodeAnsi")
+    {
+    }
+
+    SECTION("decodeWide")
+    {
+        CHECK(sf::Utf32::decodeWide(0) == 0);
+        CHECK(sf::Utf32::decodeWide(1) == 1);
+        CHECK(sf::Utf32::decodeWide(-1) == std::numeric_limits<std::uint32_t>::max());
+    }
+
+    SECTION("encodeAnsi")
+    {
+    }
+
+    SECTION("encodeWide")
+    {
+    }
+}