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https://issues.apache.org/jira/browse/SUREFIRE-1795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17117530#comment-17117530
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Tibor Digana commented on SUREFIRE-1795:
----------------------------------------
The framework JUnit or TestNG does not really matter. The tests are physically
running in parallel. The only problem is that the report is not concurrently
capable and this has to be fixed in M6. Finally it would work for any framework.
> surefire-reports is not working in parallel
> -------------------------------------------
>
> Key: SUREFIRE-1795
> URL: https://issues.apache.org/jira/browse/SUREFIRE-1795
> Project: Maven Surefire
> Issue Type: Bug
> Components: Maven Surefire Plugin
> Affects Versions: 3.0.0-M4
> Environment: Centos 7 +JDK 1.8.0 + Maven 3.0.5 + surefire plugin
> 2.19.1 + testng 6.8;
> Centos 7 + JDK 1.8.0 + Maven 3.5.2 + surefire plugin 2.19.1 + testng 6.8;
> Windows 10 + JDK 1.8.0 + Maven 3.5.0 + surefirel plugin 3.0.0-M4 + testng 6.8;
>
> Reporter: QIAO YU
> Priority: Major
> Fix For: 3.0.0-M6
>
>
> Create a maven project, add 4 testng classes to print out logs, for example:
> {code:java}
> package com.verizon.rngverify;
> import org.testng.annotations.Test;
> public class testClass1 {
> @Test public void test1() throws Exception {
> System.out.println("class1method1");
> Thread.sleep(100);
> System.out.println("class1method1 end");
> }
> }
> {code}
>
> Create a testng xml file to control above 4 test cases in parallel with 4
> threads:
> {code:java}
> <suite name="tsname" parallel="tests" thread-count="4" verbose="1">
> <test name="testname1_in_xml" >
> <classes>
> <class name="com.verizon.rngverify.testClass1"/>
> </classes>
> </test>
>
> <test name="testname2_in_xml">
> <classes>
> <class name="com.verizon.rngverify.testClass2"/>
> </classes>
> </test>
> <test name="testname3_in_xml">
> <classes>
> <class name="com.verizon.rngverify.testClass3" />
> </classes>
> </test>
> <test name="testname4_in_xml">
> <classes>
> <class name="com.verizon.rngverify.testClass4" />
> </classes>
> </test>
> </suite>
> {code}
>
> Use surefire plugin in pom:
> {code:java}
> <plugins>
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-compiler-plugin</artifactId>
> <version>3.7.0</version>
> <configuration> <source>1.8</source> <target>1.8</target>
> </configuration>
> </plugin>
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-surefire-plugin</artifactId>
> <version>3.0.0-M4</version>
> <configuration>
> <suiteXmlFiles> <file>src/test/resources/ts1234.xml</file>
> </suiteXmlFiles>
> </configuration>
> </plugin>
> </plugins>
> {code}
> Run above project:
> mvn clean install
>
> ...
> [INFO] -------------------------------------------------------
> [INFO] T E S T S
> [INFO] -------------------------------------------------------
> [INFO] Running TestSuite
> class1method1
> class2method1
> class3method1
> class4method1
> class2method1 end
> class3method1 end
> class4method1 end
> class1method1 end
> [INFO] Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.617
> s - in TestSuite
> ...
>
> But in ${project}/target/surefire-reports/testng-results.xml, only 3 cases
> were found. Also under ${project}/target/surefire-reports/junitreports
> folder, only 3 files were generated.
>
> In general, if the thread-count > 1, it happens randomly.
>
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