Add tests for sf::Vulkan

test/CMakeLists.txt

@@ -69,6 +69,7 @@ set(WINDOW_SRC
     Window/Joystick.test.cpp
     Window/Keyboard.test.cpp
     Window/VideoMode.test.cpp
+    Window/Vulkan.test.cpp
     Window/Window.test.cpp
     Window/WindowBase.test.cpp
 )

test/Window/Vulkan.test.cpp

@@ -0,0 +1,28 @@
+#include <SFML/Window/Vulkan.hpp>
+
+#include <catch2/catch_test_macros.hpp>
+
+TEST_CASE("[Window] sf::Vulkan")
+{
+    SECTION("getFunction()")
+    {
+        CHECK(sf::Vulkan::getFunction("") == nullptr);
+        CHECK(sf::Vulkan::getFunction(" ") == nullptr);
+        CHECK(sf::Vulkan::getFunction("a string that will never resolve to a Vulkan function") == nullptr);
+
+        CHECKED_IF(sf::Vulkan::isAvailable())
+        {
+            CHECK(sf::Vulkan::getFunction("vkCreateInstance") != nullptr);
+        }
+    }
+
+    SECTION("getGraphicsRequiredInstanceExtensions()")
+    {
+        // If Vulkan is not available this function may or may not return a non-empty vector
+        // If Vulkan is available then it will always return a non-empty vector
+        CHECKED_IF(sf::Vulkan::isAvailable())
+        {
+            CHECK(!sf::Vulkan::getGraphicsRequiredInstanceExtensions().empty());
+        }
+    }
+}