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https://jira.codehaus.org/browse/SUREFIRE-1059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=340731#comment-340731
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Andreas Gudian commented on SUREFIRE-1059:
------------------------------------------
Coul this be the same as SUREFIRE-1048?
> Running tests in parallel seems to ignore threadCount
> -----------------------------------------------------
>
> Key: SUREFIRE-1059
> URL: https://jira.codehaus.org/browse/SUREFIRE-1059
> Project: Maven Surefire
> Issue Type: Bug
> Affects Versions: 2.16
> Reporter: Henryk Sarat
>
> I'm trying to run 6 tests in parallel in 2 threads. However, it seems like as
> man threads launch at one time instead of just 2. My proof here is via the
> Thread Id that I print out and because the test finishes in around 18seconds.
> I expect the test to finish in about 38 seconds. I got to this number because
> I have 6 methods that sleep for 10 seconds each. If 2 threads run in
> parallel, then the total run time should be 6methods/2threads = 30 seconds
> (there there is about 8 seconds of build time of everything else). Am I doing
> something wrong? Or has an update over the years broke this in some way?
> POM File:
> {code}
> <build>
> <resources>
> <resource>
> <directory>src/main/resources</directory>
> <filtering>true</filtering>
> </resource>
> </resources>
> <plugins>
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-surefire-plugin</artifactId>
> <version>2.16</version>
> <configuration>
> <parallel>methods</parallel>
> <threadCount>2</threadCount>
> <forkCount>2</forkCount>
> </configuration>
> </plugin>
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-compiler-plugin</artifactId>
> <version>2.3.2</version>
> <configuration>
> <source>${java.version}</source>
> <target>${java.version}</target>
> </configuration>
> </plugin>
> </plugins>
> </build>
> {code}
> JUnit:
> {code}
> <dependency>
> <groupId>junit</groupId>
> <artifactId>junit</artifactId>
> <version>4.11</version>
> </dependency>
> {code}
> Java test class:
> {code}
> public class FourthTest {
> @Test
> public void testOne() throws InterruptedException, ExecutionException,
> IOException {
> for(int i =0;i<10;i++) {
> Thread.sleep(1000);
> System.out.println("one --- " + Thread.currentThread().getId());
> }
> }
> @Test
> public void testTwo() throws InterruptedException, ExecutionException,
> IOException {
> for(int i =0;i<10;i++) {
> Thread.sleep(1000);
> System.out.println("two --- " + Thread.currentThread().getId());
> }
> }
> @Test
> public void testThree() throws InterruptedException, ExecutionException,
> IOException {
> for(int i =0;i<10;i++) {
> Thread.sleep(1000);
> System.out.println("three --- " + Thread.currentThread().getId());
> }
> }
> @Test
> public void testFour() throws InterruptedException, ExecutionException,
> IOException {
> for(int i =0;i<10;i++) {
> Thread.sleep(1000);
> System.out.println("four --- " + Thread.currentThread().getId());
> }
> }
> @Test
> public void testFive() throws InterruptedException, ExecutionException,
> IOException {
> for(int i =0;i<10;i++) {
> Thread.sleep(1000);
> System.out.println("five --- " + Thread.currentThread().getId());
> }
> }
>
> volatile static boolean a = false;
> @Test
> public void testSix() throws InterruptedException, ExecutionException,
> IOException {
> for(int i =0;i<10;i++) {
> Thread.sleep(1000);
> System.out.println("six --- " + Thread.currentThread().getId());
> //if (!a){(new Exception()).printStackTrace(System.out);a=true;}
> }
> }
> }
> {code}
> command line:
> {code}
> mvn clean install test -Dtest=FourthTest -T 2
> {code}
> Output
> {code}
> [INFO] Scanning for projects...
> [INFO] Building with 2 threads
> [INFO]
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Building mobile 1.0-SNAPSHOT
> [INFO]
> ------------------------------------------------------------------------
> [INFO]
> [INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ mobile ---
> [INFO] Deleting
> [INFO]
> [INFO] --- maven-resources-plugin:2.4.3:resources (default-resources) @
> mobile ---
> [WARNING] File encoding has not been set, using platform encoding UTF-8, i.e.
> build is platform dependent!
> [WARNING] Using platform encoding (UTF-8 actually) to copy filtered
> resources, i.e. build is platform dependent!
> [INFO] skip non existing resourceDirectory
> [INFO]
> [INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ mobile ---
> [WARNING] File encoding has not been set, using platform encoding UTF-8, i.e.
> build is platform dependent!
> [INFO] Compiling 51 source files to
> [INFO]
> [INFO] --- maven-resources-plugin:2.4.3:testResources (default-testResources)
> @ mobile ---
> [WARNING] Using platform encoding (UTF-8 actually) to copy filtered
> resources, i.e. build is platform dependent!
> [INFO] Copying 2 resources
> [INFO]
> [INFO] --- maven-compiler-plugin:2.3.2:testCompile (default-testCompile) @
> mobile ---
> [WARNING] File encoding has not been set, using platform encoding UTF-8, i.e.
> build is platform dependent!
> [INFO] Compiling 23 source files to
> [INFO]
> [INFO] --- maven-surefire-plugin:2.16:test (default-test) @ mobile ---
> [INFO] Surefire report directory:
> [INFO] parallel='methods', perCoreThreadCount=true, threadCount=2,
> useUnlimitedThreads=false, threadCountSuites=0, threadCountClasses=0,
> threadCountMethods=0
> -------------------------------------------------------
> T E S T S
> -------------------------------------------------------
> -------------------------------------------------------
> T E S T S
> -------------------------------------------------------
> Running com.blah.ios.FourthTest
> three --- 11
> three --- 11
> three --- 11
> three --- 11
> three --- 11
> three --- 11
> three --- 11
> three --- 11
> three --- 11
> three --- 11
> six --- 9
> six --- 9
> six --- 9
> six --- 9
> six --- 9
> six --- 9
> six --- 9
> six --- 9
> six --- 9
> six --- 9
> four --- 13
> four --- 13
> four --- 13
> four --- 13
> four --- 13
> four --- 13
> four --- 13
> four --- 13
> four --- 13
> four --- 13
> one --- 8
> one --- 8
> one --- 8
> one --- 8
> one --- 8
> one --- 8
> one --- 8
> one --- 8
> one --- 8
> one --- 8
> five --- 12
> five --- 12
> five --- 12
> five --- 12
> five --- 12
> five --- 12
> five --- 12
> five --- 12
> five --- 12
> five --- 12
> two --- 10
> two --- 10
> two --- 10
> two --- 10
> two --- 10
> two --- 10
> two --- 10
> two --- 10
> two --- 10
> two --- 10
> Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 60.101 sec -
> in com.blah.ios.FourthTest
> Results :
> Tests run: 6, Failures: 0, Errors: 0, Skipped: 0
> [INFO]
> [INFO] --- maven-jar-plugin:2.3.1:jar (default-jar) @ mobile ---
> [INFO] Building jar:
> /Users/XX/Documents/XXXXXX/XXXX/XXX/target/mobile-1.0-SNAPSHOT.jar
> [INFO]
> [INFO] --- maven-install-plugin:2.3.1:install (default-install) @ mobile ---
> [INFO] Installing
> /Users/XX/Documents/bboxprojects/XXXXXXX/XXXX/target/mobile-1.0-SNAPSHOT.jar
> to
> /Users/XXXXXX/.m2/repository/com/XXXXX/automation/XXXXX/1.0-SNAPSHOT/mobile-1.0-SNAPSHOT.jar
> [INFO] Installing /Users/XXXXXX/Documents/XXXXX/XXXX/mobile/pom.xml to
> /Users/XXXXX/.m2/repository/com/XXXXX/XXXX/mobile/1.0-SNAPSHOT/mobile-1.0-SNAPSHOT.pom
> [INFO]
> [INFO] --- maven-resources-plugin:2.4.3:resources (default-resources) @
> mobile ---
> [WARNING] File encoding has not been set, using platform encoding UTF-8, i.e.
> build is platform dependent!
> [WARNING] Using platform encoding (UTF-8 actually) to copy filtered
> resources, i.e. build is platform dependent!
> [INFO] skip non existing resourceDirectory
> /Users/XXXXXX/Documents/XXXXX/XXXX/XXXXX/src/main/resources
> [INFO]
> [INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ mobile ---
> [WARNING] File encoding has not been set, using platform encoding UTF-8, i.e.
> build is platform dependent!
> [INFO] Compiling 1 source file to
> /Users/XXXXX/Documents/XXXX/XXXX/XXX/target/classes
> [INFO]
> [INFO] --- maven-resources-plugin:2.4.3:testResources (default-testResources)
> @ mobile ---
> [WARNING] Using platform encoding (UTF-8 actually) to copy filtered
> resources, i.e. build is platform dependent!
> [INFO] Copying 2 resources
> [INFO]
> [INFO] --- maven-compiler-plugin:2.3.2:testCompile (default-testCompile) @
> mobile ---
> [INFO] Nothing to compile - all classes are up to date
> [INFO]
> [INFO] --- maven-surefire-plugin:2.16:test (default-test) @ mobile ---
> [INFO] Skipping execution of surefire because it has already been run for
> this configuration
> [INFO]
> ------------------------------------------------------------------------
> [INFO] BUILD SUCCESS
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: 18.363s (Wall Clock)
> [INFO] Finished at: Wed Feb 05 15:44:25 PST 2014
> [INFO] Final Memory: 29M/122M
> [INFO]
> ------------------------------------------------------------------------
> {code}
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