326

tests/test_326.cpp

@@ -0,0 +1,34 @@
+#include <gtest/gtest.h>
+#include <solution/326.h>
+
+class IsPowerOfThreeTest : public ::testing::Test
+{
+  protected:
+    void AssertIsPowerOfThree(int input, bool expected)
+    {
+        EXPECT_EQ(isPowerOfThree(input), expected);
+    }
+};
+
+// 示例测试用例
+TEST_F(IsPowerOfThreeTest, ExampleTrueCases)
+{
+    AssertIsPowerOfThree(27, true);
+    AssertIsPowerOfThree(9, true);
+    AssertIsPowerOfThree(1, true); // 3^0 = 1
+    AssertIsPowerOfThree(3, true);
+}
+
+TEST_F(IsPowerOfThreeTest, ExampleFalseCases)
+{
+    AssertIsPowerOfThree(0, false);
+    AssertIsPowerOfThree(45, false);
+    AssertIsPowerOfThree(-3, false);
+    AssertIsPowerOfThree(10, false);
+}
+
+TEST_F(IsPowerOfThreeTest, EdgeCases)
+{
+    AssertIsPowerOfThree(INT_MIN, false);
+    AssertIsPowerOfThree(INT_MAX, false); // INT_MAX = 2^31 - 1，不是3的幂
+}