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How to use getChildren method of org.junit.runner.Description class

Best junit code snippet using org.junit.runner.Description.getChildren

Source:CategoryWithParameterizedRunnerFactoryTest.java

...60    public ExposedParameterized(Class<?> klass) throws Throwable {61      super(klass);62    }63    @Override64    protected List<Runner> getChildren() {65      return super.getChildren();66    }67  }68  @RunWith(ExposedParameterized.class)69  @Parameterized.UseParametersRunnerFactory(ExposedBlockJUnit4ClassRunnerWithParametersFactory.class)70  public static class BrokenCategoryClass {71    @Parameterized.Parameters72    public static Iterable<String> getParams() {73      return Arrays.asList("one", "two");74    }75    @Parameterized.Parameter76    public String value;77    @Test78    public void insanity() {79      assertTrue(true);80    }81  }82  @RunWith(ExposedParameterized.class)83  @Parameterized.UseParametersRunnerFactory(CategoryWithParameterizedRunnerFactory.class)84  public static class WorkingCategoryClass {85    @Parameterized.Parameters86    public static Iterable<String> getParams() {87      return Arrays.asList("one", "two");88    }89    @Parameterized.Parameter90    public String value;91    @Test92    public void insanity() {93      assertTrue(true);94    }95  }96  @Test97  public void testBrokenCategoryAndParameterized() {98    Request request = Request.aClass(BrokenCategoryClass.class);99    ExposedParameterized runner = (ExposedParameterized) request.getRunner();100    request = request.filterWith(new CategoryFilter(101        (ExposedBlockJUnit4ClassRunnerWithParameters) runner.getChildren().get(0)));102    Result result = new JUnitCore().run(request);103    assertEquals(2, result.getRunCount());104  }105  @Test106  public void testWorkingCategoryAndParameterized() {107    Request request = Request.aClass(WorkingCategoryClass.class);108    ExposedParameterized runner = (ExposedParameterized) request.getRunner();109    request =110        request.filterWith(new CategoryFilter((ExposedGetAnnotations) runner.getChildren().get(0)));111    Result result = new JUnitCore().run(request);112    assertEquals(2, result.getRunCount());113  }114  public static class CategoryFilter extends Filter {115    private ExposedGetAnnotations runner;116    public CategoryFilter(ExposedGetAnnotations runner) {117      this.runner = runner;118    }119    @Override120    public boolean shouldRun(Description description) {121      if (description.getChildren().size() == 0) {122        return true;123      }124      List<Annotation> runnerAnnotations = new ArrayList<>();125      Collections.addAll(runnerAnnotations, runner.getRunnerAnnotations());126      for (Annotation a : description.getAnnotations()) {127        if (runnerAnnotations.contains(a)) {128          return true;129        }130      }131      return false;132    }133    @Override134    public String describe() {135      return CategoryFilter.class.getSimpleName();...

Source:JUnit4TestReference.java

...38		if (description.isTest()) {39			return 1;40		} else {41			int result= 0;42			for (Description child : description.getChildren()) {43				result+= countTestCases(child);44			}45			return result;46		}47	}48	@Override49	public boolean equals(Object obj) {50		if (!(obj instanceof JUnit4TestReference))51			return false;52		JUnit4TestReference ref= (JUnit4TestReference)obj;53		return (ref.fRoot.equals(fRoot));54	}55	public ITestIdentifier getIdentifier() {56		return new JUnit4Identifier(fRoot);57	}58	@Override59	public int hashCode() {60		return fRoot.hashCode();61	}62	public void run(TestExecution execution) {63		final RunNotifier notifier= new RunNotifier();64		notifier.addListener(new JUnit4TestListener(execution.getListener()));65		execution.addStopListener(new IStopListener() {66			public void stop() {67				notifier.pleaseStop();68			}69		});70		Result result= new Result();71		RunListener listener= result.createListener();72		notifier.addListener(listener);73		try {74			notifier.fireTestRunStarted(fRunner.getDescription());75			fRunner.run(notifier);76			notifier.fireTestRunFinished(result);77		} catch (StoppedByUserException e) {78			// not interesting, see https://bugs.eclipse.org/32949879		} finally {80			notifier.removeListener(listener);81		}82	}83	public void sendTree(IVisitsTestTrees notified) {84		sendTree(notified, fRoot);85	}86	private void sendTree(final IVisitsTestTrees notified, Description description) {87		if (description.isTest()) {88			notified.visitTreeEntry(new JUnit4Identifier(description), false, 1, false, "-1"); //$NON-NLS-1$89		} else {90			notified.visitTreeEntry(new JUnit4Identifier(description), true, description.getChildren().size(), false, "-1"); //$NON-NLS-1$91			for (Description child : description.getChildren()) {92				sendTree(notified, child);93			}94		}95	}96	@Override97	public String toString() {98		return fRoot.toString();99	}100}...

Source:FilterableTest.java

...29    @Test30    public void shouldReturnOneDescriptionForSimpleTestCase() throws Exception {31        Request request = requestSingleMethodRun(SampleTestCase.class, "firstTestMethod");32        Description description = request.getRunner().getDescription();33        assertThat(description.getChildren()).hasSize(1);34        assertThat(description.getChildren().get(0).getChildren()).hasSize(0);35    }36    @Test37    public void shouldReturnParametrizedDescriptionsForParametrizedTestCase() throws Exception {38        Request request = requestSingleMethodRun(SampleTestCase.class, "secondTestMethod");39        Description description = request.getRunner().getDescription();40        assertThat(description.getChildren()).hasSize(1);41        assertThat(description.getChildren().get(0).getChildren()).hasSize(2);42    }43    @Test44    public void shouldApplyFiltersCumulatively() throws Exception {45        JUnitParamsRunner runner = new JUnitParamsRunner(SampleTestCase.class);46        // Remove the first method.47        new SingleMethodFilter("firstTestMethod").apply(runner);48        try {49            // Now remove all instances of the second method.50            new SingleMethodFilter("secondTestMethod").apply(runner);51            fail("Filtering did not apply cumulatively");52        } catch (NoTestsRemainException expected) {53            // expected54        }55    }...

Source:6660.java

...

Source:JUnit4TestAdapterCache.java

...28        if (description.isTest()) {29            return new JUnit4TestCaseFacade(description);30        }31        TestSuite suite = new TestSuite(description.getDisplayName());32        Iterator<Description> it = description.getChildren().iterator();33        while (it.hasNext()) {34            suite.addTest(asTest(it.next()));35        }36        return suite;37    }38    public RunNotifier getNotifier(final TestResult result, JUnit4TestAdapter adapter) {39        RunNotifier notifier = new RunNotifier();40        notifier.addListener(new RunListener() {41            /* class junit.framework.JUnit4TestAdapterCache.AnonymousClass1 */42            @Override // org.junit.runner.notification.RunListener43            public void testFailure(Failure failure) throws Exception {44                result.addError(JUnit4TestAdapterCache.this.asTest(failure.getDescription()), failure.getException());45            }46            @Override // org.junit.runner.notification.RunListener47            public void testFinished(Description description) throws Exception {48                result.endTest(JUnit4TestAdapterCache.this.asTest(description));49            }50            @Override // org.junit.runner.notification.RunListener51            public void testStarted(Description description) throws Exception {52                result.startTest(JUnit4TestAdapterCache.this.asTest(description));53            }54        });55        return notifier;56    }57    public List<Test> asTestList(Description description) {58        if (description.isTest()) {59            return Arrays.asList(asTest(description));60        }61        List<Test> returnThis = new ArrayList<>();62        Iterator<Description> it = description.getChildren().iterator();63        while (it.hasNext()) {64            returnThis.add(asTest(it.next()));65        }66        return returnThis;67    }68}...

Source:SerializableDescription.java

...40     */41    @SuppressWarnings("unchecked")42    public static SerializableDescription create(Description description) {43        final List<SerializableDescription> children;44        if (description.getChildren() != null) {45            children = new ArrayList<SerializableDescription>();46            for (Description child : description.getChildren()) {47                children.add(create(child));48            }49        } else {50            children = Collections.EMPTY_LIST;51        }52        return new SerializableDescription(description.getDisplayName(), children);5354    }5556    /**57     * Restore an org.junit.runner.Description from this SerializableDescription object58     * @return the restored org.junit.runner.Description object59     */60    public Description restore() {
...

Source:ParameterizedNamesTest.java

...33    }34    @Test35    public void parameterizedTestsWithSpecialCharsInName() {36        Request request = Request.aClass(ParametrizedWithSpecialCharsInName.class);37        for (Description parent : request.getRunner().getDescription().getChildren()) {38            for (Description description : parent.getChildren()) {39                assertEquals("test" + parent.getDisplayName(), description.getMethodName());40            }41        }42    }43}

getChildren

Using AI Code Generation

1import org.junit.runner.Description;2import org.junit.runner.RunWith;3import org.junit.runners.Parameterized;4import org.junit.runners.Parameterized.Parameters;5import org.junit.runners.Suite;6import org.junit.runners.Suite.SuiteClasses;7@RunWith(Parameterized.class)8public class JunitParameterizedTest {9    private int number;10    public JunitParameterizedTest(int number) {11        this.number = number;12    }13    public static Iterable<Object[]> data1() {14        return Arrays.asList(new Object[][] { { 1 }, { 2 }, { 3 }, { 4 }, { 5 } });15    }16    public void test() {17        System.out.println("Parameterized Number is : " + number);18    }19}20import org.junit.runner.Description;21import org.junit.runner.notification.RunNotifier;22import org.junit.runners.Parameterized;23import org.junit.runners.Parameterized.Parameters;24import org.junit.runners.Suite;25import org.junit.runners.Suite.SuiteClasses;26import org.junit.runners.model.InitializationError;27public class JunitParameterizedTestRunner extends Parameterized {28    public JunitParameterizedTestRunner(Class<?> klass) throws Throwable {29        super(klass);30    }31    public void run(RunNotifier notifier) {32        Description description = getDescription();33        System.out.println("Description: " + description);34        System.out.println("Children: " + description.getChildren());35        System.out.println("Display Name: " + description.getDisplayName());36        System.out.println("Test Count: " + description.testCount());37        super.run(notifier);38    }39    public static Iterable<Object[]> data1() {40        return Arrays.asList(new Object[][] { { 1 }, { 2 }, { 3 }, { 4 }, { 5 } });41    }42}43Children: [JunitParameterizedTestRunner(1), JunitParameterizedTestRunner(2), JunitParameterizedTestRunner(3), JunitParameterizedTestRunner(4), JunitParameterizedTestRunner(5)]

getChildren

Using AI Code Generation

1import org.junit.runner.Description;2import org.junit.runner.RunWith;3import org.junit.runners.Parameterized;4import org.junit.runners.Parameterized.Parameters;5import org.junit.runners.Parameterized.Parameter;6import org.junit.Test;7import java.util.Arrays;8import java.util.Collection;9import static org.junit.Assert.assertEquals;10@RunWith(Parameterized.class)11public class TestDescription {12    public static Collection<Object[]> data() {13        return Arrays.asList(new Object[][] {14            { "class", "org.junit.runner.DescriptionTest", "org.junit.runner.DescriptionTest" },15            { "method", "org.junit.runner.DescriptionTest", "org.junit.runner.DescriptionTest#testDescription" },16            { "nestedClass", "org.junit.runner.DescriptionTest$Nested", "org.junit.runner.DescriptionTest$Nested" },17            { "nestedMethod", "org.junit.runner.DescriptionTest$Nested", "org.junit.runner.DescriptionTest$Nested#testDescription" },18        });19    }20    public String type;21    @Parameter(1)22    public String className;23    @Parameter(2)24    public String displayName;25    public void testDescription() throws Exception {26        Class<?> clazz = Class.forName(className);27        Description description = Description.createSuiteDescription(clazz);28        if ("method".equals(type)) {29            description.addChild(Description.createTestDescription(clazz, "testDescription"));30        } else if ("nestedClass".equals(type)) {31            description.addChild(Description.createSuiteDescription(clazz.getDeclaredClasses()[0]));32        } else if ("nestedMethod".equals(type)) {33            description.getChildren().get(0).addChild(Description.createTestDescription(clazz.getDeclaredClasses()[0], "testDescription"));34        }35        assertEquals(displayName, description.getDisplayName());36    }37    public static class Nested {38        public void testDescription() {39        }40    }41}

getChildren

Using AI Code Generation

1import org.junit.runner.Description;2import org.junit.runner.RunWith;3import org.junit.runners.Suite;4import org.junit.runners.Suite.SuiteClasses;5import org.junit.runners.model.InitializationError;6@RunWith(Suite.class)7@SuiteClasses({ Junit4Test.class })8public class Junit4TestSuite extends Suite {9    public Junit4TestSuite(Class<?> klass) throws InitializationError {10        super(klass, getChildren());11    }12    private static Class<?>[] getChildren() {13        Description description = Description.createSuiteDescription("Junit4TestSuite");14        Junit4Test junit4Test = new Junit4Test();15        junit4Test.test1();16        junit4Test.test2();17        junit4Test.test3();18        junit4Test.test4();19        junit4Test.test5();20        junit4Test.test6();21        junit4Test.test7();22        junit4Test.test8();23        junit4Test.test9();24        junit4Test.test10();25        junit4Test.test11();26        junit4Test.test12();27        junit4Test.test13();28        junit4Test.test14();29        junit4Test.test15();30        junit4Test.test16();31        junit4Test.test17();32        junit4Test.test18();33        junit4Test.test19();34        junit4Test.test20();35        junit4Test.test21();36        junit4Test.test22();37        junit4Test.test23();38        junit4Test.test24();39        junit4Test.test25();40        junit4Test.test26();41        junit4Test.test27();42        junit4Test.test28();43        junit4Test.test29();44        junit4Test.test30();45        junit4Test.test31();46        junit4Test.test32();47        junit4Test.test33();48        junit4Test.test34();49        junit4Test.test35();50        junit4Test.test36();51        junit4Test.test37();52        junit4Test.test38();53        junit4Test.test39();54        junit4Test.test40();55        junit4Test.test41();56        junit4Test.test42();57        junit4Test.test43();58        junit4Test.test44();59        junit4Test.test45();60        junit4Test.test46();61        junit4Test.test47();62        junit4Test.test48();63        junit4Test.test49();64        junit4Test.test50();65        junit4Test.test51();66        junit4Test.test52();67        junit4Test.test53();

getChildren

Using AI Code Generation

1import org.junit.runner.Description;2import org.junit.runner.Runner;3import org.junit.runner.notification.RunNotifier;4import org.junit.runners.Suite;5import org.junit.runners.model.InitializationError;6import java.util.List;7public class MySuiteRunner extends Suite {8    public MySuiteRunner(Class<?> klass) throws InitializationError {9        super(klass, new Runner[]{new MyRunner(klass)});10    }11    private static class MyRunner extends Runner {12        private final Class<?> klass;13        private final Description description;14        private MyRunner(Class<?> klass) throws InitializationError {15            this.klass = klass;16            this.description = Description.createSuiteDescription(klass);17            for (Description child : this.description.getChildren()) {18                System.out.println(child.getDisplayName());19            }20        }21        public Description getDescription() {22            return this.description;23        }24        public void run(RunNotifier notifier) {25        }26    }27}

getChildren

Using AI Code Generation

1import org.junit.runner.Description;2import org.junit.runner.JUnitCore;3import org.junit.runner.Result;4import org.junit.runner.RunWith;5import org.junit.runners.Suite;6import org.junit.runners.Suite.SuiteClasses;7@RunWith(Suite.class)8@SuiteClasses({ TestClass1.class, TestClass2.class })9public class TestSuite {10    public static void main(String[] args) {11        JUnitCore junit = new JUnitCore();12        Result result = junit.run(TestSuite.class);13        Description suiteDescription = result.getRunDescription();14        for (Description description : suiteDescription.getChildren()) {15            System.out.println(description.getDisplayName());16        }17    }18}19package com.journaldev.junit;20import org.junit.Test;21public class TestClass1 {22    public void testMethod1() {23        System.out.println("TestClass1.testMethod1()");24    }25    public void testMethod2() {26        System.out.println("TestClass1.testMethod2()");27    }28}29package com.journaldev.junit;30import org.junit.Test;31public class TestClass2 {32    public void testMethod3() {33        System.out.println("TestClass2.testMethod3()");34    }35    public void testMethod4() {36        System.out.println("TestClass2.testMethod4()");37    }38}39TestClass1.testMethod1()40TestClass1.testMethod2()41TestClass2.testMethod3()42TestClass2.testMethod4()

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Assertions in JUnit - Assertions are used to validate or test that the result of an action/functionality is the same as expected. Learn in detail what assertions are and how to use them while performing JUnit testing.
Parameterization in JUnit - Parameterized Test enables you to run the same automated test scripts with different variables. By collecting data on each method's test parameters, you can minimize time spent on writing tests. Learn how to use parameterization in JUnit.
Nested Tests In JUnit 5 - A nested class is a non-static class contained within another class in a hierarchical structure. It can share the state and setup of the outer class. Learn about nested annotations in JUnit 5 with examples.
Best practices for JUnit testing - Learn about the best practices, such as always testing key methods and classes, integrating JUnit tests with your build, and more to get the best possible results.
Advanced Use Cases for JUnit testing - Take a deep dive into the advanced use cases, such as how to run JUnit tests in Jupiter, how to use JUnit 5 Mockito for Unit testing, and more for JUnit testing.