Create tests for 3 texture format functions

Summary: ^^

Reviewed By: corporateshark, mmaurer

Differential Revision: D62876033

fbshipit-source-id: d70548969521781d7260da375b73283fff69707c

src/igl/tests/vulkan/TextureFormat.cpp

@@ -9,6 +9,34 @@
 #include <igl/vulkan/util/TextureFormat.h>
 
 namespace igl::vulkan::tests {
+TEST(TextureFormatUtilTest, invertRedAndBlue) {
+  ASSERT_EQ(VK_FORMAT_B8G8R8A8_UNORM, util::invertRedAndBlue(VK_FORMAT_R8G8B8A8_UNORM));
+  ASSERT_EQ(VK_FORMAT_R8G8B8A8_UNORM, util::invertRedAndBlue(VK_FORMAT_B8G8R8A8_UNORM));
+  ASSERT_EQ(VK_FORMAT_R8G8B8A8_SRGB, util::invertRedAndBlue(VK_FORMAT_B8G8R8A8_SRGB));
+  ASSERT_EQ(VK_FORMAT_B8G8R8A8_SRGB, util::invertRedAndBlue(VK_FORMAT_R8G8B8A8_SRGB));
+  ASSERT_EQ(VK_FORMAT_A2R10G10B10_UNORM_PACK32,
+            util::invertRedAndBlue(VK_FORMAT_A2B10G10R10_UNORM_PACK32));
+  ASSERT_EQ(VK_FORMAT_A2B10G10R10_UNORM_PACK32,
+            util::invertRedAndBlue(VK_FORMAT_A2R10G10B10_UNORM_PACK32));
+}
+
+TEST(TextureFormatUtilTest, isTextureFormatRGB) {
+  ASSERT_TRUE(util::isTextureFormatRGB(VK_FORMAT_R8G8B8A8_UNORM));
+  ASSERT_TRUE(util::isTextureFormatRGB(VK_FORMAT_R8G8B8A8_SRGB));
+  ASSERT_TRUE(util::isTextureFormatRGB(VK_FORMAT_A2R10G10B10_UNORM_PACK32));
+  ASSERT_FALSE(util::isTextureFormatRGB(VK_FORMAT_B8G8R8A8_UNORM));
+  ASSERT_FALSE(util::isTextureFormatRGB(VK_FORMAT_B8G8R8A8_SRGB));
+  ASSERT_FALSE(util::isTextureFormatRGB(VK_FORMAT_A2B10G10R10_UNORM_PACK32));
+}
+
+TEST(TextureFormatUtilTest, isTextureFormatBGR) {
+  ASSERT_FALSE(util::isTextureFormatBGR(VK_FORMAT_R8G8B8A8_UNORM));
+  ASSERT_FALSE(util::isTextureFormatBGR(VK_FORMAT_R8G8B8A8_SRGB));
+  ASSERT_FALSE(util::isTextureFormatBGR(VK_FORMAT_A2R10G10B10_UNORM_PACK32));
+  ASSERT_TRUE(util::isTextureFormatBGR(VK_FORMAT_B8G8R8A8_UNORM));
+  ASSERT_TRUE(util::isTextureFormatBGR(VK_FORMAT_B8G8R8A8_SRGB));
+  ASSERT_TRUE(util::isTextureFormatBGR(VK_FORMAT_A2B10G10R10_UNORM_PACK32));
+}
 
 TEST(TextureFormatUtilTest, vkTextureFormatToTextureFormat) {
   ASSERT_EQ(util::vkTextureFormatToTextureFormat(VK_FORMAT_UNDEFINED), igl::TextureFormat::Invalid);