1 files changed, 39 insertions, 0 deletions
diff --git a/test/unit/math/func_test.cpp b/test/unit/math/func_test.cpp
new file mode 100644
index 0000000..57f1347
--- /dev/null
+++ b/test/unit/math/func_test.cpp
@@ -0,0 +1,39 @@
+/*
+  Unit tests for math functions.
+ */
+
+#include "math/func.h"
+
+#include <gtest/gtest.h>
+
+
+TEST(IsPowerOfTwo, TestDifferentValues)
+{
+    EXPECT_FALSE(Math::IsPowerOfTwo(0));
+    EXPECT_TRUE(Math::IsPowerOfTwo(1));
+    EXPECT_TRUE(Math::IsPowerOfTwo(2));
+    EXPECT_FALSE(Math::IsPowerOfTwo(3));
+    EXPECT_TRUE(Math::IsPowerOfTwo(4));
+
+    EXPECT_FALSE(Math::IsPowerOfTwo(31));
+    EXPECT_TRUE(Math::IsPowerOfTwo(32));
+    EXPECT_FALSE(Math::IsPowerOfTwo(33));
+
+    EXPECT_FALSE(Math::IsPowerOfTwo(1234));
+}
+
+TEST(NextPowerOfTwo, TestDifferentValues)
+{
+    EXPECT_EQ(2, Math::NextPowerOfTwo(2));
+    EXPECT_EQ(4, Math::NextPowerOfTwo(3));
+    EXPECT_EQ(4, Math::NextPowerOfTwo(4));
+    EXPECT_EQ(8, Math::NextPowerOfTwo(5));
+
+    EXPECT_EQ(8, Math::NextPowerOfTwo(7));
+    EXPECT_EQ(8, Math::NextPowerOfTwo(8));
+    EXPECT_EQ(16, Math::NextPowerOfTwo(9));
+
+    EXPECT_EQ(32, Math::NextPowerOfTwo(31));
+    EXPECT_EQ(32, Math::NextPowerOfTwo(32));
+    EXPECT_EQ(64, Math::NextPowerOfTwo(33));
+}