Hi

I'm trying to learn how to write unit tests in gwt and in particular errai.

Ive been studying some examples on the errai github repo, for example https://github.com/errai/errai/tree/4cf20f4d79a06494f022a20adf74a47d4126eebe/errai-ui/src/test/java/org/jboss/errai/ui/test/handler/client.

In my attempt, I am getting the following error. Can anyone help to educate me into how to write tests for errai?

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

          at com.google.gwt.junit.JUnitShell.checkTestClassInCurrentModule(JUnitShell.java:695)

          at com.google.gwt.junit.JUnitShell.runTestImpl(JUnitShell.java:1261)

          at com.google.gwt.junit.JUnitShell.runTestImpl(JUnitShell.java:1228)

          at com.google.gwt.junit.JUnitShell.runTest(JUnitShell.java:606)

          at com.google.gwt.junit.client.GWTTestCase.runTest(GWTTestCase.java:441)

          at junit.framework.TestCase.runBare(TestCase.java:134)

          at junit.framework.TestResult$1.protect(TestResult.java:110)

          at junit.framework.TestResult.runProtected(TestResult.java:128)

          at junit.framework.TestResult.run(TestResult.java:113)

          at junit.framework.TestCase.run(TestCase.java:124)

          at com.google.gwt.junit.client.GWTTestCase.run(GWTTestCase.java:296)

          at junit.framework.TestSuite.runTest(TestSuite.java:243)

          at junit.framework.TestSuite.run(TestSuite.java:238)

          at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)

          at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)

          at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

          at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)

          at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)

          at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)

          at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

My test is:

package app.Test;


import java.util.HashMap;
import java.util.Map; 
import org.jboss.errai.enterprise.client.cdi.AbstractErraiCDITest;
import org.jboss.errai.ioc.client.container.IOC;
import org.junit.Test; 
import app.client.local.rule.RuleHeader;
import app.client.shared.datamodel.Rule;
import app.client.shared.datamodel.RuleSubType;
import app.client.shared.datamodel.RuleType; 

public class RuleHeaderTest extends AbstractErraiCDITest {


          @Override
            public String getModuleName() {
              return getClass().getName().replaceAll("client.*$", "app");
            }
  
          @Test
          public void testRuleHeaderBinding(){
                     final RuleHeaderTestApp app = IOC.getBeanManager().lookupBean(RuleHeaderTestApp.class).getInstance();
                     assertNotNull(app.getComponent());  
  
                    Rule rule = new Rule();
                    rule.setName("new name");
                    rule.setContent("hello world");
  
                    RuleHeader header =new RuleHeader();
                    header.setModel(rule);

          } 
}

package app.Test;


import javax.annotation.PostConstruct;
import javax.inject.Inject; 
import org.jboss.errai.ioc.client.api.EntryPoint; 
import app.client.local.rule.RuleHeader; 
import com.google.gwt.user.client.ui.RootPanel;

@EntryPoint
public class RuleHeaderTestApp {
  
          @Inject
          private RootPanel root;
  
          @Inject
          RuleHeader component;
  
          public RuleHeader getComponent() {
                    return component;
          }


          @PostConstruct
            public void setup() {
              root.add(component);
              System.out.println(root.getElement().getInnerHTML());
            }

}