igl | Add BackendFlavor and BackendVersion unit tests

Reviewed By: corporateshark

Differential Revision: D109867984

fbshipit-source-id: eb08196a643aa811edb2597d4dffc29b87eeef0c

Author: rudybear

src/igl/tests/BackendVersionTest.cpp

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#include <gtest/gtest.h>
+
+#include <igl/DeviceFeatures.h>
+
+namespace igl::tests {
+
+// ---------------------------------------------------------------------------
+// BackendFlavor
+// ---------------------------------------------------------------------------
+
+TEST(BackendFlavorTest, EnumValues) {
+  EXPECT_EQ(static_cast<uint8_t>(BackendFlavor::Invalid), 0u);
+  EXPECT_EQ(static_cast<uint8_t>(BackendFlavor::OpenGL), 1u);
+  EXPECT_EQ(static_cast<uint8_t>(BackendFlavor::OpenGL_ES), 2u);
+  EXPECT_EQ(static_cast<uint8_t>(BackendFlavor::Metal), 3u);
+  EXPECT_EQ(static_cast<uint8_t>(BackendFlavor::Vulkan), 4u);
+  EXPECT_EQ(static_cast<uint8_t>(BackendFlavor::D3D12), 5u);
+}
+
+// ---------------------------------------------------------------------------
+// BackendVersion
+// ---------------------------------------------------------------------------
+
+TEST(BackendVersionTest, DefaultConstruction) {
+  const BackendVersion bv;
+  EXPECT_EQ(bv.flavor, BackendFlavor::Invalid);
+  EXPECT_EQ(bv.majorVersion, 0u);
+  EXPECT_EQ(bv.minorVersion, 0u);
+}
+
+TEST(BackendVersionTest, DesignatedInitializer) {
+  const BackendVersion bv{
+      .flavor = BackendFlavor::Vulkan,
+      .majorVersion = 1,
+      .minorVersion = 3,
+  };
+  EXPECT_EQ(bv.flavor, BackendFlavor::Vulkan);
+  EXPECT_EQ(bv.majorVersion, 1u);
+  EXPECT_EQ(bv.minorVersion, 3u);
+}
+
+TEST(BackendVersionTest, EqualityReflexive) {
+  const BackendVersion bv{.flavor = BackendFlavor::Metal, .majorVersion = 3, .minorVersion = 0};
+  EXPECT_EQ(bv, bv);
+}
+
+TEST(BackendVersionTest, EqualitySameValues) {
+  const BackendVersion a{.flavor = BackendFlavor::Vulkan, .majorVersion = 1, .minorVersion = 3};
+  const BackendVersion b{.flavor = BackendFlavor::Vulkan, .majorVersion = 1, .minorVersion = 3};
+  EXPECT_EQ(a, b);
+}
+
+TEST(BackendVersionTest, InequalityDifferentFlavor) {
+  const BackendVersion a{.flavor = BackendFlavor::Vulkan, .majorVersion = 1, .minorVersion = 0};
+  const BackendVersion b{.flavor = BackendFlavor::Metal, .majorVersion = 1, .minorVersion = 0};
+  EXPECT_NE(a, b);
+}
+
+TEST(BackendVersionTest, InequalityDifferentMajorVersion) {
+  const BackendVersion a{.flavor = BackendFlavor::Vulkan, .majorVersion = 1, .minorVersion = 0};
+  const BackendVersion b{.flavor = BackendFlavor::Vulkan, .majorVersion = 2, .minorVersion = 0};
+  EXPECT_NE(a, b);
+}
+
+TEST(BackendVersionTest, InequalityDifferentMinorVersion) {
+  const BackendVersion a{.flavor = BackendFlavor::Vulkan, .majorVersion = 1, .minorVersion = 0};
+  const BackendVersion b{.flavor = BackendFlavor::Vulkan, .majorVersion = 1, .minorVersion = 3};
+  EXPECT_NE(a, b);
+}
+
+} // namespace igl::tests