Re: Does GWTTestCase still work?

Hi,

Could you confirm that GWTTestCase only works if you're still using the old javax.servlet API? It no longer works once you've migrated to Jakarta (e.g. Tomcat 10), right?

Regards,

Radek

On Monday, May 12, 2025 at 3:32:52 PM UTC+2 Craig Mitchell wrote:

Thank you Thomas!  The testArgs config worked perfectly.

On Monday, 12 May 2025 at 5:41:37 pm UTC+10 Thomas Broyer wrote:

Use the gwt.args system property to pass arguments to GWT's JUnitShell: https://www.gwtproject.org/doc/latest/DevGuideTesting.html#passingTestArguments / https://maven.apache.org/surefire/maven-surefire-plugin/examples/system-properties.html

<systemPropertyVariables>

  <gwt.args>-testMethodTimeout 10</gwt.args>

</systemPropertyVariables>

But with my maven plugin, you can also "just" use <testArgs> in the plugin configuration: https://tbroyer.github.io/gwt-maven-plugin/test-mojo.html#testArgs

<testArgs>

  <arg>-testMethodTimeout</arg><arg>10</arg>

</testArgs>

On Sunday, May 11, 2025 at 6:29:29 AM UTC+2 ma...@craig-mitchell.com wrote:

If it helps, this is where it's setting the default timeout of 5 minutes:  https://github.com/gwtproject/gwt/blob/main/user/src/com/google/gwt/junit/JUnitShell.java#L318  I'm just stuck on how to override it.

Also, if I run  mvn clean install gwt:test -pl *-client  that seems to run the tests (but it's easier to type mvn package 🙂)

On Saturday, 10 May 2025 at 5:24:37 pm UTC+10 Craig Mitchell wrote:

(Sorry for the spamming)  Now I am able to run my tests, I see they are rather slow, and they timeout with the message "Try increasing this timeout using the '-testMethodTimeout minutes' option".

I'm running in Maven and trying to add this argument.  I've tried putting it in the POM:

<gwt.testMethodTimeout>10</gwt.testMethodTimeout>

Also via the command line:

mvn package "-DtestMethodTimeout=10"

mvn package "-DtestMethodTimeout 10"

It just keeps using the default of 5 minutes.  Any idea how to set the timeout?

On Saturday, 10 May 2025 at 4:58:07 pm UTC+10 Craig Mitchell wrote:

Apologies.  Doing a mvn package does work.  The tests run successfully.  Doing a mvn test does not work (gives the "No source code is available for type test.craig.FieldVerifier; did you forget to inherit a required module?"" error).

On Saturday, 10 May 2025 at 4:51:35 pm UTC+10 Craig Mitchell wrote:

Some extra (strange) behaviours:

Creating a class in the client module:

public class FieldVerifierOverride extends FieldVerifier { }

And then calling the test with this class:

assertTrue( FieldVerifierOverride.isValidName("hi") );

Gives a different error:

[ERROR] Could not find test.craig.FieldVerifier in types compiled from source. Is the source glob too strict?

Also, if I run mvn package (instead of mvn test), then the test actally runs, but FieldVerifier.isValidName("hi") returns false (it should return true):

  [ERROR] test.craig.MyTests.testSimple -- Time elapsed: 8.016 s <<< FAILURE!
  junit.framework.AssertionFailedError: expected: <true>, actual: <false>

On Saturday, 10 May 2025 at 12:01:52 pm UTC+10 Craig Mitchell wrote:

In the GWTTestCase client tests, if I want to test code that's in the shared module.  Eg:

assertTrue( FieldVerifier.isValidName("hi") );

I get the error:

[ERROR] Line 13: No source code is available for type test.craig.FieldVerifier; did you forget to inherit a required module?

How can I inherit the shared module for the GWTTestCase tests?

On Monday, 28 April 2025 at 9:26:13 am UTC+10 Craig Mitchell wrote:

Thanks Colin.  I wasn't aware of the "Suite" naming convention.

So, to summarise.  Either:

- Put "Suite" or "SuiteNoBrowser" at the end of the test class name, or

- Add the test class directly as an include in the client pom.xml, in the gwt-maven-plugin.

Now working great!

On Sunday, 27 April 2025 at 10:30:10 pm UTC+10 Colin Alworth wrote:

When using maven, running from the command line should be "mvn test". With the plugin you are using, it is assumed you are using a test suite - this is not required, but scales better. If you only need to run a single test, you can modify this includes.

https://tbroyer.github.io/gwt-maven-plugin/test-mojo.html#includes

For example in your project with MyTests (note: that wouldn't run even in a non-gwt project from maven, the default pattern is *Test), you could add this:
          <includes>
            <include>test/craig/MyTests.java</include>
          </includes>

When I do that, having built the sample as you describe, the tests passes with mvn test:
[INFO] -------------------------------------------------------
[INFO]  T E S T S
[INFO] -------------------------------------------------------
[INFO] Running test.craig.MyTests
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 13.96 s -- in test.craig.MyTests
[INFO]
[INFO] Results:
[INFO]
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

When running from IJ, it doesnt automatically add sources to the classpath as gwt:test does, so you may just want to call the maven goal directly instead. I recall that it is possible to configure Maven/IJ to run tests "normally", but can't quickly spot what that would be.

On Sunday, April 27, 2025 at 12:18:17 AM UTC-5 ma...@craig-mitchell.com wrote:

When running from the command line, I forgot to add all the items to the class path.  Once I did that, I got the same error IntelliJ did:

There was 1 error:
1) testSimple(test.craig.MyTests)com.google.gwt.junit.JUnitFatalLaunchException: The test class 'test.craig.MyTests' was not found in module 'test.craig.App'; no compilation unit for that type was seen
        at com.google.gwt.junit.JUnitShell.checkTestClassInCurrentModule(JUnitShell.java:741)
        at com.google.gwt.junit.JUnitShell.runTestImpl(JUnitShell.java:1360)
        at com.google.gwt.junit.JUnitShell.runTestImpl(JUnitShell.java:1316)
        at com.google.gwt.junit.JUnitShell.runTest(JUnitShell.java:679)
        at com.google.gwt.junit.client.GWTTestCase.runTest(GWTTestCase.java:421)
        at com.google.gwt.junit.client.GWTTestCase.run(GWTTestCase.java:247)

FAILURES!!!
Tests run: 1,  Failures: 0,  Errors: 1

On Sunday, 27 April 2025 at 2:54:36 pm UTC+10 Craig Mitchell wrote:

I created a demo project with https://github.com/NaluKit/gwt-maven-springboot-archetype with the params:

- modular-springboot-webapp

- groupId: test.craig
- artifactId: testing
- module-short-name app: tc

Added JUnit to the client pom:

<dependency>
  <groupId>junit</groupId>
  <artifactId>junit</artifactId>
  <version>4.13.2</version>
  <scope>test</scope>
</dependency>

Created a simple test in the client module (in src/test/java/test/craig/MyTests.java):

public class MyTests extends GWTTestCase {
  @Override
  public String getModuleName() {
    return "test.craig.App";
  }
  public void testSimple() {
    assertTrue( true );
  }
}

Tried to run it in IntelliJ, but got the error:

com.google.gwt.junit.JUnitFatalLaunchException: The test class 'test.craig.MyTests' was not found in module 'test.craig.App'; no compilation unit for that type was seen

Tried to compile and run it from the command line:

java junit.textui.TestRunner test.craig.MyTests

But that returned:

Error: Could not find or load main class junit.textui.TestRunner
Caused by: java.lang.ClassNotFoundException: junit.textui.TestRunner

I thought I was following the instructions in https://www.gwtproject.org/doc/latest/DevGuideTesting.html but obviously doing something wrong.

Any help is much appreciated.

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