Maven没有发现ScalaTest单元测试

我有以下单元测试:

import org.scalatest.FunSpec
import org.scalatest.Matchers._

class MyClassSpec extends FunSpec {

  describe("MyClass"){
    describe("Scenario 1"){
      it("Condition 1") {
        true shouldEqual false
      }

      it("Condition 2"){
        true shouldEqual false
      }
    }
  }

}

当我运行maven测试时,这可以很好地编译,但没有找到测试。以下是输出:

[INFO] --- maven-surefire-plugin:2.7:test (default-test) @ project-name ---
[INFO] Tests are skipped.
[INFO] 
[INFO] --- scalatest-maven-plugin:1.0:test (test) @ project-name ---
Discovery starting.
Discovery completed in 202 milliseconds.
Run starting. Expected test count is: 0
DiscoverySuite:
Run completed in 236 milliseconds.
Total number of tests run: 0
Suites: completed 1, aborted 0
Tests: succeeded 0, failed 0, canceled 0, ignored 0, pending 0
No tests were executed.

正如输出所示,我正在为maven使用scalatest插件。这是我的pom的相关部分。xml:

<!-- disable surefire -->
<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.7</version>
    <configuration>
        <skipTests>true</skipTests>
    </configuration>
</plugin>
<!-- enable scalatest -->
<plugin>
    <groupId>org.scalatest</groupId>
    <artifactId>scalatest-maven-plugin</artifactId>
    <version>1.0</version>
    <configuration>
        <reportsDirectory>${project.build.directory}/scalatest-reports</reportsDirectory>
        <junitxml>junit</junitxml>
        <filereports>report.txt</filereports>
    </configuration>
    <executions>
        <execution>
            <id>test</id>
            <goals>
                <goal>test</goal>
            </goals>
        </execution>
    </executions>
</plugin>

我对设置这个东西很陌生,所以我不确定是否还有其他东西我没有检查。如果我运行maven clean,然后运行maven测试,我会得到完全相同的结果。我使用的是ScalaTest版本3.0.1。我有另一个项目,测试也使用3.0.1成功运行(我复制了这两个项目之间的所有内容,这些内容看起来甚至有点遥远的联系)。