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junit5 的入门例子

maven 引入

<dependencies>
    <!-- 添加 JUnit 5 依赖项 -->
    <dependency>
        <groupId>org.junit.jupiter</groupId>
        <artifactId>junit-jupiter-api</artifactId>
        <version>5.8.2</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.junit.jupiter</groupId>
        <artifactId>junit-jupiter-engine</artifactId>
        <version>5.8.2</version>
        <scope>test</scope>
    </dependency>
</dependencies>

方法

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

测试类

import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;

public class CalculatorTest {

    @Test
    void testAdd() {
        // Arrange
        Calculator calculator = new Calculator();

        // Act
        int result = calculator.add(3, 7);

        // Assert
        assertEquals(10, result, "3 + 7 should equal 10");
    }
}