java 测试没有通过 Maven 运行？
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Tests not running through Maven?
提问by Ava
When I run my test in Maven I get this:
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
My test class, JsonReaderTest.class, is placed in src/test/javaand follows the correct name convention as far as I know from maven-surefire-plugin.
我的测试类 JsonReaderTest.class 位于src/test/java 中，并遵循我从 maven-surefire-plugin 中了解到的正确名称约定。
Tests run fine when run outside of Maven.
在 Maven 之外运行时测试运行良好。
I have this plugin included in my pom:
我的 pom 中包含了这个插件：
<!-- Executes tests -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20.1</version>
</plugin>
and this in my dependencies:
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>
and my test class:
和我的测试课：
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();
}
}
When I tried googling this problem, it seemed the only thing that could be wrong would be naming convention (class had to end with or start with test, I tested both with no change) and that the test class should be put into the appropriate folder.
当我尝试使用谷歌搜索这个问题时，似乎唯一可能出错的是命名约定（类必须以测试结束或开始，我测试了两者都没有改变）并且测试类应该放在适当的文件夹中.
When I run: mvn -Dtest=JsonReaderTest test
当我运行时：mvn -Dtest=JsonReaderTest test
I get following:
我得到以下信息：
Failed to execute goal org.apache.maven.plugins:maven-surefire-
plugin:2.20.1:test (default-test) on project optaplanner: No tests were
executed!
The JsonReaderTest.class is also correctly generated inside target/test-classes
JsonReaderTest.class 也在目标/测试类中正确生成
What could be the culprit here?
这里的罪魁祸首是什么？
回答by glytching
Using the Maven Surefire plugin and JUnit 5 together requires some tweaking ...
一起使用 Maven Surefire 插件和 JUnit 5 需要一些调整......
From the docs:
从文档：
The JUnit team has developed a very basic provider for Maven Surefire that lets you run JUnit 4 and JUnit Jupiter tests via mvn test. The pom.xml file in the junit5-maven-consumer project demonstrates how to use it and can serve as a starting point.
Due to a memory leak in Surefire 2.20, the junit-platform-surefire-provider currently only works with Surefire 2.19.1.
JUnit 团队为 Maven Surefire 开发了一个非常基本的提供程序，它允许您通过 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，可以作为一个起点。
由于 Surefire 2.20 中的内存泄漏，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>
...
回答by David DeMar
I was having the same problem. All the test classes were package private and JUnit 5 couldn't see them. The solution was to add this dependency to the pom file:
我遇到了同样的问题。所有的测试类都是包私有的，JUnit 5 看不到它们。解决方案是将此依赖项添加到 pom 文件中：
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.3.2</version>
<scope>test</scope>
</dependency>
回答by amazia
the following pom configuration worked for me:
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>
...
the plugin part as @glytching stated above
上面提到的@glytching 插件部分
回答by RudyD
This plugin worked for me:
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>
Taken from https://maven.apache.org/surefire/maven-surefire-plugin/examples/junit.html
取自https://maven.apache.org/surefire/maven-surefire-plugin/examples/junit.html
