测试没有通过Maven运行？

Question

当我在Maven中运行我的测试时,我得到了这个:

[INFO] -------------------------------------------------------    
[INFO]  T E S T S     
[INFO] -------------------------------------------------------   
[INFO]   
[INFO] Results:  
[INFO]   
[INFO] Tests run: 0, Failures: 0, Errors: 0, Skipped: 0

我的测试类JsonReaderTest.class放在src/test/java中,并且根据我所知的maven-surefire-plugin遵循正确的名称约定.

在Maven外面运行时,测试运行正常.

我的这个插件包含在我的pom中:

<!-- Executes tests -->
<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.20.1</version>
</plugin>

这在我的依赖项中:

<!-- Test -->
<dependency>
    <groupId>org.junit.jupiter</groupId>
    <artifactId>junit-jupiter-api</artifactId>
    <version>5.0.0</version>
</dependency>

<dependency>
    <groupId>org.junit.jupiter</groupId>
    <artifactId>junit-jupiter-engine</artifactId>
    <version>5.0.0</version>
</dependency>

和我的测试类:

package org.avalin.optaplanner.test.java;

import org.avalin.optaplanner.json.JsonReader;
import org.junit.jupiter.api.*;

import java.io.FileNotFoundException;
import java.nio.file.Paths;

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

public class JsonReaderTest
{
    @Test
    @DisplayName("Test: No such file at designated path")
    void testloadFromJsonTest() throws Exception
    {
        Throwable exception = assertThrows(FileNotFoundException.class, 
        ()-> JsonReader.loadFromJson(".json"));
        assertEquals(".json (No such file or directory)", 
        exception.getMessage());
    }

    @Test
    @DisplayName("Test: Load Shifts from JSON (String instead of number)")
    void testLoadShiftsFromJson3()
    {
        Throwable exception = assertThrows(NumberFormatException.class, ()-> JsonReader.loadFromJson(Paths.get("src/main/resources/org/avalin/optaplanner/json/faultyShift-2.json").toAbsolutePath().toString()));
        assertEquals("\nOne or more of your \"shift\" elements has a number format exception.\n" +
            "Check for errors in your JSON-properties.\n" +
            "(Did you insert a string instead of a number in id?)", 
        exception.getMessage());
    }

    @Test
    @DisplayName("Test: JSON is correctly loaded")
    void testJsonIsLoaded()
    {
        assertFalse(JsonReader.jsonIsLoaded());
    }

    @AfterEach
    void cleanJsonReader()
    {
        JsonReader.cleanJsonReader();
    }
}

当我尝试谷歌搜索这个问题时,似乎唯一可能是错误的是命名约定(类必须以测试结束或者以测试开始,我测试两者都没有改变)并且测试类应该放入适当的文件夹中.

当我运行:mvn -Dtest = JsonReaderTest测试

我得到以下:

Failed to execute goal org.apache.maven.plugins:maven-surefire-
plugin:2.20.1:test (default-test) on project optaplanner: No tests were 
executed!  

JsonReaderTest.class也在target/test-classes中正确生成

这可能是罪魁祸首？

Answer 1

使用Maven Surefire插件和JUnit 5需要一些调整......

来自文档:

JUnit团队为Maven Surefire开发了一个非常基本的提供程序,允许您通过mvn test运行JUnit 4和JUnit Jupiter测试.junit5-maven-consumer项目中的pom.xml文件演示了如何使用它并可以作为起点.

由于Surefire 2.20中存在内存泄漏,junit-platform-surefire-provider目前仅适用于Surefire 2.19.1.

...
<build>
    <plugins>
        ...
        <plugin>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>2.19</version>
            <dependencies>
                <dependency>
                    <groupId>org.junit.platform</groupId>
                    <artifactId>junit-platform-surefire-provider</artifactId>
                    <version>1.0.0</version>
                </dependency>
            </dependencies>
        </plugin>
    </plugins>
</build>
...

Answer 2

这个插件对我有用：

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>3.0.0-M3</version>
                <dependencies>
                    <dependency>
                        <groupId>org.apache.maven.surefire</groupId>
                        <artifactId>surefire-junit47</artifactId>
                        <version>3.0.0-M3</version>
                    </dependency>
                </dependencies>
            </plugin>

取自https://maven.apache.org/surefire/maven-surefire-plugin/examples/junit.html

Answer 3

以下 pom 配置对我有用：

<dependency>
      <groupId>org.junit.jupiter</groupId>
      <artifactId>junit-jupiter-api</artifactId>
      <version>5.4.0</version>
      <scope>test</scope>
  </dependency>
  <dependency>
      <groupId>org.junit.jupiter</groupId>
      <artifactId>junit-jupiter-engine</artifactId>
      <version>5.4.0</version>
      <scope>test</scope>
  </dependency>
  <dependency>
      <groupId>org.junit.platform</groupId>
      <artifactId>junit-platform-launcher</artifactId>
      <version>1.4.0</version>
      <scope>test</scope>
  </dependency>
....
<plugin>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>2.19</version>
        <dependencies>
            <dependency>
                <groupId>org.junit.platform</groupId>
                <artifactId>junit-platform-surefire-provider</artifactId>
                <version>1.0.0</version>
            </dependency>
        </dependencies>
    </plugin>
...

上面提到的@glytching 插件部分