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我使用的是scalatest-maven-plugin最新的 1.0 版本，这里有源代码。尝试并行运行我的套件并使用以下配置：

<build><plugin>
    <groupId>org.scalatest</groupId>
    <artifactId>scalatest-maven-plugin</artifactId>
    <version>1.0</version> 
    <configuration>
        <reportsDirectory>${project.build.directory}/surefire-reports</reportsDirectory>
        <junitxml>.</junitxml>
        <filereports>WDF TestSuite.txt</filereports>
        <htmlreporters>${project.build.directory}/html/scalatest</htmlreporters>                    
        <parallel>true</parallel>
    </configuration>
    <executions>
        <execution>
            <id>test</id>
            <goals>
                <goal>test</goal>
            </goals>
        </execution>
    </executions>
</plugin></build>

导致以下 Maven 构建错误：

[INFO]
[INFO] --- scalatest-maven-plugin:1.0:test (test) @ myproject ---
Exception in thread "ScalaTest-main" java.lang.IllegalArgumentException: ERROR: -c has been deprecated for a very long time and is no longer supported, to prepare for reusing it for a different purpos
e in the near future. Please change all uses of -c to -P.
        at org.scalatest.tools.ArgsParser$.checkArgsForValidity(ArgsParser.scala:46)
        at org.scalatest.tools.Runner$.runOptionallyWithPassFailReporter(Runner.scala:857)
        at org.scalatest.tools.Runner$.main(Runner.scala:827)
        at org.scalatest.tools.Runner.main(Runner.scala)

基本上 scalatest-maven-plugin 传递-c给 scalatest CLI 而不是正确的-P.. 或者甚至更好-P10，即要使用的线程数。

如何-P10通过 Maven 将 scalatest 传递给 scalatest 进程？我已经尝试在MAVEN_OPTS环境变量或 Maven CLI 中直接设置它，但它没有被拾取。

我也尝试过像这样配置 scalatest-maven-plugin：

<configuration>
    <argLine>-P10</argLine>
</configuration>

但是这个参数被传递给java进程而不是Scalatest，所以它也失败了。

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1 回答 1

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我创建了自己的 scalatest-maven-plugin 分支，修复了并行问题并将其版本化为 1.1-SNAPSHOT 我还必须修复构建等它都被破坏了。我包含了一个可直接下载的编译 tarball 版本scalatest-maven-plugin_1.1-SNAPSHOT.tar.gz

然后为了测试它，分叉了我自己的 scala-maven-example 版本，它使用我自己的 scalatest-maven-plugin 分支并修改了 scalatest 示例代码以显示加载每个套件的线程 ID 和执行的线程 ID每个套件的第一次测试。我还让当前线程在每个点随机休眠最多 10 秒，以查看发生了什么。如果启用了并行，所有 scalatest 套件都由单个线程加载并并行执行。

这是使用的结果<parallel>false</parallel>：

[INFO] --- scalatest-maven-plugin:1.1-SNAPSHOT:test (test) @ scala-maven-testing ---
Discovery starting.
** loading 'net.lockney.AcceptanceTest' Suite with ThreadId=1
==> executing 'Simple thing state' test with ThreadId=1
** loading 'net.lockney.MatcherExampleSuite' Suite with ThreadId=1
** loading 'net.lockney.SimpleSpec' Suite with ThreadId=1
** loading 'net.lockney.SimpleSuite' Suite with ThreadId=1
Discovery completed in 19 seconds, 98 milliseconds.
Run starting. Expected test count is: 8
AcceptanceTest:
As a user 
I want to be able to create a simple thing and implicitly start it 
So that I can then turn it off 
And see that it is stopped 
Feature: Simple thing state
  Scenario: User stops thing when it's already on
    Given An initialized thing, that has not been started 
    When User stops it again 
    Then We should see that it is stopped 
==> executing 'equality' test with ThreadId=1
MatcherExampleSuite:
- equality
==> executing 'SimpleObject' should 'accept a String' test with ThreadId=1
- string matchers *** FAILED ***
  "something" did not end with substring "some" (MatcherExampleSuite.scala:29)
SimpleSpec:
SimpleObject
- should accept a String
- should even accept really long Strings
==> executing 'An empty Set should have size 0' test with ThreadId=1
...
Run completed in 28 seconds, 300 milliseconds.
Total number of tests run: 8
Suites: completed 5, aborted 0
Tests: succeeded 6, failed 2, canceled 0, ignored 0, pending 0
*** 2 TESTS FAILED ***

这是使用<parallel>true</parallel>and的结果<parallelThreads>10</parallelThreads>：

[INFO] --- scalatest-maven-plugin:1.1-SNAPSHOT:test (test) @ scala-maven-testing ---
Discovery starting.
** loading 'net.lockney.AcceptanceTest' Suite with ThreadId=1
==> executing 'Simple thing state' test with ThreadId=1
** loading 'net.lockney.MatcherExampleSuite' Suite with ThreadId=1
** loading 'net.lockney.SimpleSpec' Suite with ThreadId=1
** loading 'net.lockney.SimpleSuite' Suite with ThreadId=1
Discovery completed in 30 seconds, 904 milliseconds.
Run starting. Expected test count is: 8
MatcherExampleSuite:
SimpleSuite:
AcceptanceTest:
SimpleSpec:
SimpleObject
As a user 
I want to be able to create a simple thing and implicitly start it 
So that I can then turn it off 
And see that it is stopped 
Feature: Simple thing state
==> executing 'An empty Set should have size 0' test with ThreadId=13
==> executing 'SimpleObject' should 'accept a String' test with ThreadId=12
==> executing 'equality' test with ThreadId=11
...
Run completed in 40 seconds, 706 milliseconds.
Total number of tests run: 8
Suites: completed 5, aborted 0
Tests: succeeded 6, failed 2, canceled 0, ignored 0, pending 0
*** 2 TESTS FAILED ***
于 2016-10-06T20:38:52.283 回答