#include "pch.h"
#include "CppUnitTest.h"
#include "MathLibrary.h"

using namespace Microsoft::VisualStudio::CppUnitTestFramework;

namespace UnitTestDemo
{
	TEST_CLASS(UnitTestDemo)
	{
	public:

		// 语句覆盖
		TEST_METHOD(Divide_ZeroDivisor1) { Assert::AreEqual(0.0, MathLibrary::Divide(4, 0)); }
		TEST_METHOD(Divide_ZeroDivisor2) { Assert::AreEqual(0.0, MathLibrary::Divide(4, 0)); }

		// 分支覆盖
		TEST_METHOD(IsPositive_Positive1) { Assert::IsTrue(MathLibrary::IsPositive(5)); }
		TEST_METHOD(IsPositive_Negative2) { Assert::IsFalse(MathLibrary::IsPositive(-5)); }

		// 条件覆盖
		TEST_METHOD(CheckRange_BothTrue1) { Assert::IsTrue(MathLibrary::CheckRange(5, 5)); }
		TEST_METHOD(CheckRange_FirstFalse2) { Assert::IsFalse(MathLibrary::CheckRange(-5, 5)); }
		TEST_METHOD(CheckRange_SecondFalse3) { Assert::IsFalse(MathLibrary::CheckRange(5, 15)); }

		// 路径覆盖
		TEST_METHOD(Discount_TeenMember1) { Assert::AreEqual(0.25, MathLibrary::CalculateDiscount(15, true)); }
		TEST_METHOD(Discount_TeenNonMember2) { Assert::AreEqual(0.20, MathLibrary::CalculateDiscount(15, false)); }
		TEST_METHOD(Discount_AdultMember3) { Assert::AreEqual(0.15, MathLibrary::CalculateDiscount(20, true)); }
		TEST_METHOD(Discount_AdultNonMember4) { Assert::AreEqual(0.10, MathLibrary::CalculateDiscount(20, false)); }


	};
}