代码之家 › 专栏 › 技术社区 › jhan

无法解析JUnitParamsRunner

test-runner junit eclipse java

jhan · 技术社区 · 1 年前

我正试图使用Eclipse IDE测试使用JUnitParamsRunner,但不知何故,JUnitParams Runner无法解决。我目前使用的是JDK 21和JUnit 5。这个 @Parameters 无法解析为类型,而相同的情况也适用于 @RunWith(JUnitParamsRunner.class)

这是我的JUnit测试代码

package application;
import junitparams.JUnitParamsRunner;
import junitparams.Parameters;

import static junitparams.JUnitParamsRunner.$;

import org.junit.Test;
import org.junit.runner.RunWith;
import static org.junit.Assert.assertEquals;

@RunWith(JUnitParamsRunner.class)
public class BasicParameterizedDemo {

    @Test
    public void testAddTwoNumbersV1() {
        VariousMethodsClass vmc = new VariousMethodsClass();
        int result = vmc.addTwoNumbers(10, 15);
        assertEquals(25, result);
    }
    
    @Test
    public void testAddTwoNumbersV2() {
        VariousMethodsClass vmc = new VariousMethodsClass();
        int result = vmc.addTwoNumbers(-50, 10);
        assertEquals(-40, result);
    }
    
    @Test
    public void testAddTwoNumbersV3() {
        VariousMethodsClass vmc = new VariousMethodsClass();
        int result = vmc.addTwoNumbers(30, 100);
        assertEquals(130, result);
    }

    @Test
    @Parameters({"10, 15, 25","-50, 10, -40","30, 100, 130"})
    public void paramTestAddTwoNumbersV1(int num1, int num2, int expectedSum) {
        VariousMethodsClass vmc = new VariousMethodsClass();
        int result = vmc.addTwoNumbers(num1, num2);
        assertEquals(expectedSum, result);
    }   
    
    private Object[] getNumbersToAdd() {
        
        return new Object[] {
            new Object[] {10, 15, 25},
            new Object[] {-50, 10, -40},
            new Object[] {30, 100, 130}
        };
    }
    
    @Test
    @Parameters(method = "getNumbersToAdd")
    public void paramTestAddTwoNumbersV2(int num1, int num2, int expectedSum) {
        VariousMethodsClass vmc = new VariousMethodsClass();
        int result = vmc.addTwoNumbers(num1, num2);
        assertEquals(expectedSum, result);
    }
    
    @Test
    @Parameters
    public void paramTestV3(int num1, int num2, int expectedSum){
        VariousMethodsClass vmc = new VariousMethodsClass();
        assertEquals(expectedSum,vmc.addTwoNumbers(num1, num2));
    }
    
    private Object[] parametersForParamTestV3(){
        return new Object[] {
                new Object[] {10, 15, 25},
                new Object[] {-50, 10, -40},
                new Object[] {30, 100, 130}
        };
    }
    
    @Test
    @Parameters(method = "getNumbersToAdd_V2")
    public void paramTestV4(int num1, int num2, int expectedSum){
        VariousMethodsClass vmc = new VariousMethodsClass();
        assertEquals(expectedSum, vmc.addTwoNumbers(num1, num2));
    }
    
    private Object[] getNumbersToAdd_V2(){
        return $(
                $(10, 15, 25),
                $(-50, 10, -40),
                $(30, 100, 130)
        );
    }
}```

1 回复 | 直到 1 年前

Thomas Kläger 1 年前

你的进口( org.junit.Test 和 org.junit.runner.RunWith )来自JUnit 4( https://github.com/junit-team/junit4/wiki/Getting-started )JUnit4本身并不支持参数化测试。对于JUnit 4,有一个单独的包 JUnitParams 你没有导入到你的项目中。

如果您想使用JUnit5,您需要从导入正确的 Test 注释( https://junit.org/junit5/docs/current/user-guide/#writing-tests ):

import org.junit.jupiter.api.Test;

您需要更改参数化测试以使用本机JUnit5参数化测试支持( https://junit.org/junit5/docs/current/user-guide/#writing-tests-parameterized-tests ):

import org.junit.jupiter.params.ParameterizedTest

    @ParameterizedTest
    @CsvSource({"10, 15, 25","-50, 10, -40","30, 100, 130"})
    public void paramTestAddTwoNumbersV1(int num1, int num2, int expectedSum) {
        VariousMethodsClass vmc = new VariousMethodsClass();
        int result = vmc.addTwoNumbers(num1, num2);
        assertEquals(expectedSum, result);
    }   
 
    private Object[] getNumbersToAdd() {
        return new Object[] {
            new Object[] {10, 15, 25},
            new Object[] {-50, 10, -40},
            new Object[] {30, 100, 130}
        };
    }

    @ParameterizedTest
    @MethodSource("getNumbersToAdd")
    public void paramTestAddTwoNumbersV2(int num1, int num2, int expectedSum) {
        VariousMethodsClass vmc = new VariousMethodsClass();
        int result = vmc.addTwoNumbers(num1, num2);
        assertEquals(expectedSum, result);
    }

    @ParameterizedTest
    @MethodSource
    public void paramTestV3(int num1, int num2, int expectedSum){
        VariousMethodsClass vmc = new VariousMethodsClass();
        assertEquals(expectedSum,vmc.addTwoNumbers(num1, num2));
    }

    private Object[] parametersForParamTestV3(){
        return new Object[] {
            new Object[] {10, 15, 25},
            new Object[] {-50, 10, -40},
            new Object[] {30, 100, 130}
        };
    }

我省略了最后一个例子,因为JUnit5不支持 $() 用于写入阵列。