C++: اختبار الوحدات

sudo apt-get install libgtest-dev

#include <gtest/gtest.h>

int add(int a, int b) {
	return a + b;
}

TEST(AddTest, Positive) {
	EXPECT_EQ(add(2, 3), 5);
}

TEST(AddTest, Negative) {
	EXPECT_EQ(add(-2, -3), -5);
}

int main(int argc, char** argv) {
	::testing::InitGoogleTest(&argc, argv);
	return RUN_ALL_TESTS();
}

[==========] Running 2 tests from 1 test suite.
[  PASSED  ] 2 tests.

[==========] Running 2 tests from 1 test suite.
[ PASSED ] 2 tests.

#include <gtest/gtest.h>
#include <queue>

class QueueTest : public testing::Test {
protected:
	void SetUp() override {
		q.push(1);
		q.push(2);
		q.push(3);
	}
	
	void TearDown() override {
		// التنظيف (إذا لزم الأمر)
	}
	
	std::queue<int> q;
};

TEST_F(QueueTest, Size) {
	EXPECT_EQ(q.size(), 3);
}

TEST_F(QueueTest, Front) {
	EXPECT_EQ(q.front(), 1);
}

int main(int argc, char** argv) {
	::testing::InitGoogleTest(&argc, argv);
	return RUN_ALL_TESTS();
}

(خرج البرنامج)

// 1. اكتب الاختبار أولاً
TEST(StackTest, PushAndPop) {
	Stackint s;
	s.push(42);
	EXPECT_EQ(s.pop(), 42);
}

// 2. ثم اكتب الكود
template<typename T>
class Stack {
	std::vectorT data;
public:
	void push(const T& x) { data.push_back(x); }
	T pop() { T x = data.back(); data.pop_back(); return x; }
};

(خرج البرنامج)

#include <gtest/gtest.h>
#include <string>

class Student {
	std::string name;
	int age;
	
public:
	Student(const std::string& name, int age) : name(name), age(age) {}
	
	std::string getName() const { return name; }
	int getAge() const { return age; }
};

TEST(StudentTest, Constructor) {
	Student s("Zhang San", 20);
	EXPECT_EQ(s.getName(), "Zhang San");
	EXPECT_EQ(s.getAge(), 20);
}

int main(int argc, char** argv) {
	::testing::InitGoogleTest(&argc, argv);
	return RUN_ALL_TESTS();
}

(خرج البرنامج)

#include <iostream>
#include <cassert>

int multiply(int a, int b) {
    return a * b;
}

bool isPositive(int n) {
    return n > 0;
}

int main() {
    assert(multiply(2, 3) == 6);
    assert(multiply(-2, 3) == -6);
    assert(multiply(0, 5) == 0);
    std::cout << "multiply Test passed" << std::endl;

    assert(isPositive(5) == true);
    assert(isPositive(-1) == false);
    assert(isPositive(0) == false);
    std::cout << "isPositive Test passed" << std::endl;

    std::cout << "All tests passed！" << std::endl;
    return 0;
}

multiply Test passed
isPositive Test passed
All tests passed！