How to use getChildren method of org.junit.runners.ParentRunner class

Best junit code snippet using org.junit.runners.ParentRunner.getChildren

Source:ParentRunner.java Github

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...71 //72 /**73 * Returns a list of objects that define the children of this Runner.74 */75 protected abstract List<T> getChildren();76 /**77 * Returns a {@link Description} for {@code child}, which can be assumed to78 * be an element of the list returned by {@link ParentRunner#getChildren()}79 */80 protected abstract Description describeChild(T child);81 /**82 * Runs the test corresponding to {@code child}, which can be assumed to be83 * an element of the list returned by {@link ParentRunner#getChildren()}.84 * Subclasses are responsible for making sure that relevant test events are85 * reported through {@code notifier}86 */87 protected abstract void runChild(T child, RunNotifier notifier);88 //89 // May be overridden90 //91 /**92 * Adds to {@code errors} a throwable for each problem noted with the test class (available from {@link #getTestClass()}).93 * Default implementation adds an error for each method annotated with94 * {@code @BeforeClass} or {@code @AfterClass} that is not95 * {@code public static void} with no arguments.96 */97 protected void collectInitializationErrors(List<Throwable> errors) {98 validatePublicVoidNoArgMethods(BeforeClass.class, true, errors);99 validatePublicVoidNoArgMethods(AfterClass.class, true, errors);100 validateClassRules(errors);101 }102 /**103 * Adds to {@code errors} if any method in this class is annotated with104 * {@code annotation}, but:105 * <ul>106 * <li>is not public, or107 * <li>takes parameters, or108 * <li>returns something other than void, or109 * <li>is static (given {@code isStatic is false}), or110 * <li>is not static (given {@code isStatic is true}).111 */112 protected void validatePublicVoidNoArgMethods(Class<? extends Annotation> annotation,113 boolean isStatic, List<Throwable> errors) {114 List<FrameworkMethod> methods = getTestClass().getAnnotatedMethods(annotation);115 for (FrameworkMethod eachTestMethod : methods) {116 eachTestMethod.validatePublicVoidNoArg(isStatic, errors);117 }118 }119 private void validateClassRules(List<Throwable> errors) {120 CLASS_RULE_VALIDATOR.validate(getTestClass(), errors);121 CLASS_RULE_METHOD_VALIDATOR.validate(getTestClass(), errors);122 }123 /**124 * Constructs a {@code Statement} to run all of the tests in the test class. Override to add pre-/post-processing.125 * Here is an outline of the implementation:126 * <ul>127 * <li>Call {@link #runChild(Object, RunNotifier)} on each object returned by {@link #getChildren()} (subject to any imposed filter and sort).</li>128 * <li>ALWAYS run all non-overridden {@code @BeforeClass} methods on this class129 * and superclasses before the previous step; if any throws an130 * Exception, stop execution and pass the exception on.131 * <li>ALWAYS run all non-overridden {@code @AfterClass} methods on this class132 * and superclasses before any of the previous steps; all AfterClass methods are133 * always executed: exceptions thrown by previous steps are combined, if134 * necessary, with exceptions from AfterClass methods into a135 * {@link MultipleFailureException}.136 * </ul>137 *138 * @return {@code Statement}139 */140 protected Statement classBlock(final RunNotifier notifier) {141 Statement statement = childrenInvoker(notifier);142 statement = withBeforeClasses(statement);143 statement = withAfterClasses(statement);144 statement = withClassRules(statement);145 return statement;146 }147 /**148 * Returns a {@link Statement}: run all non-overridden {@code @BeforeClass} methods on this class149 * and superclasses before executing {@code statement}; if any throws an150 * Exception, stop execution and pass the exception on.151 */152 protected Statement withBeforeClasses(Statement statement) {153 List<FrameworkMethod> befores = fTestClass154 .getAnnotatedMethods(BeforeClass.class);155 return befores.isEmpty() ? statement :156 new RunBefores(statement, befores, null);157 }158 /**159 * Returns a {@link Statement}: run all non-overridden {@code @AfterClass} methods on this class160 * and superclasses before executing {@code statement}; all AfterClass methods are161 * always executed: exceptions thrown by previous steps are combined, if162 * necessary, with exceptions from AfterClass methods into a163 * {@link MultipleFailureException}.164 */165 protected Statement withAfterClasses(Statement statement) {166 List<FrameworkMethod> afters = fTestClass167 .getAnnotatedMethods(AfterClass.class);168 return afters.isEmpty() ? statement :169 new RunAfters(statement, afters, null);170 }171 /**172 * Returns a {@link Statement}: apply all173 * static fields assignable to {@link TestRule}174 * annotated with {@link ClassRule}.175 *176 * @param statement the base statement177 * @return a RunRules statement if any class-level {@link Rule}s are178 * found, or the base statement179 */180 private Statement withClassRules(Statement statement) {181 List<TestRule> classRules = classRules();182 return classRules.isEmpty() ? statement :183 new RunRules(statement, classRules, getDescription());184 }185 /**186 * @return the {@code ClassRule}s that can transform the block that runs187 * each method in the tested class.188 */189 protected List<TestRule> classRules() {190 List<TestRule> result = fTestClass.getAnnotatedMethodValues(null, ClassRule.class, TestRule.class);191 result.addAll(fTestClass.getAnnotatedFieldValues(null, ClassRule.class, TestRule.class));192 return result;193 }194 /**195 * Returns a {@link Statement}: Call {@link #runChild(Object, RunNotifier)}196 * on each object returned by {@link #getChildren()} (subject to any imposed197 * filter and sort)198 */199 protected Statement childrenInvoker(final RunNotifier notifier) {200 return new Statement() {201 @Override202 public void evaluate() {203 runChildren(notifier);204 }205 };206 }207 private void runChildren(final RunNotifier notifier) {208 for (final T each : getFilteredChildren()) {209 fScheduler.schedule(new Runnable() {210 public void run() {211 ParentRunner.this.runChild(each, notifier);212 }213 });214 }215 fScheduler.finished();216 }217 /**218 * Returns a name used to describe this Runner219 */220 protected String getName() {221 return fTestClass.getName();222 }223 //224 // Available for subclasses225 //226 /**227 * Returns a {@link TestClass} object wrapping the class to be executed.228 */229 public final TestClass getTestClass() {230 return fTestClass;231 }232 /**233 * Runs a {@link Statement} that represents a leaf (aka atomic) test.234 */235 protected final void runLeaf(Statement statement, Description description,236 RunNotifier notifier) {237 EachTestNotifier eachNotifier = new EachTestNotifier(notifier, description);238 eachNotifier.fireTestStarted();239 try {240 statement.evaluate();241 } catch (AssumptionViolatedException e) {242 eachNotifier.addFailedAssumption(e);243 } catch (Throwable e) {244 eachNotifier.addFailure(e);245 } finally {246 eachNotifier.fireTestFinished();247 }248 }249 /**250 * @return the annotations that should be attached to this runner's251 * description.252 */253 protected Annotation[] getRunnerAnnotations() {254 return fTestClass.getAnnotations();255 }256 //257 // Implementation of Runner258 //259 @Override260 public Description getDescription() {261 Description description = Description.createSuiteDescription(getName(),262 getRunnerAnnotations());263 for (T child : getFilteredChildren()) {264 description.addChild(describeChild(child));265 }266 return description;267 }268 @Override269 public void run(final RunNotifier notifier) {270 EachTestNotifier testNotifier = new EachTestNotifier(notifier,271 getDescription());272 try {273 Statement statement = classBlock(notifier);274 statement.evaluate();275 } catch (AssumptionViolatedException e) {276 testNotifier.fireTestIgnored();277 } catch (StoppedByUserException e) {278 throw e;279 } catch (Throwable e) {280 testNotifier.addFailure(e);281 }282 }283 //284 // Implementation of Filterable and Sortable285 //286 public void filter(Filter filter) throws NoTestsRemainException {287 for (Iterator<T> iter = getFilteredChildren().iterator(); iter.hasNext(); ) {288 T each = iter.next();289 if (shouldRun(filter, each)) {290 try {291 filter.apply(each);292 } catch (NoTestsRemainException e) {293 iter.remove();294 }295 } else {296 iter.remove();297 }298 }299 if (getFilteredChildren().isEmpty()) {300 throw new NoTestsRemainException();301 }302 }303 public void sort(Sorter sorter) {304 fSorter = sorter;305 for (T each : getFilteredChildren()) {306 sortChild(each);307 }308 Collections.sort(getFilteredChildren(), comparator());309 }310 //311 // Private implementation312 //313 private void validate() throws InitializationError {314 List<Throwable> errors = new ArrayList<Throwable>();315 collectInitializationErrors(errors);316 if (!errors.isEmpty()) {317 throw new InitializationError(errors);318 }319 }320 private List<T> getFilteredChildren() {321 if (fFilteredChildren == null) {322 fFilteredChildren = new ArrayList<T>(getChildren());323 }324 return fFilteredChildren;325 }326 private void sortChild(T child) {327 fSorter.apply(child);328 }329 private boolean shouldRun(Filter filter, T each) {330 return filter.shouldRun(describeChild(each));331 }332 private Comparator<? super T> comparator() {333 return new Comparator<T>() {334 public int compare(T o1, T o2) {335 return fSorter.compare(describeChild(o1), describeChild(o2));336 }...

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Source:PopupExample.java Github

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...71 public void handle(ActionEvent event) {72 popup.hide();73 }74 });75 root.getChildren().addAll(show, hide);76 primaryStage.setScene(new Scene(root));77 primaryStage.show();78 }79 protected Stage createPopup(Window owner) {80 final Stage popup = new Stage();81 popup.initOwner(owner);82 popup.initStyle(StageStyle.TRANSPARENT);83 popup.initModality(Modality.WINDOW_MODAL);84 VBox vBox = new VBox();85 vBox.setAlignment(Pos.CENTER);86 vBox.setSpacing(10);87 vBox.setPrefWidth(300);88 vBox.setPrefHeight(200);89 vBox.setMaxWidth(Double.MAX_VALUE);90 vBox.setMaxHeight(Double.MAX_VALUE);91 Label messageLabel = new Label("出错啦", new ImageView("org/vivus/javafx2/popup/fail.png"));92 vBox.getChildren().add(messageLabel);93// Label showHideLabel = new Label("show/hide");94// final TextArea stackTrace = new TextArea(STACK_TRACE);95// stackTrace.setEditable(false);96// stackTrace.setVisible(false);97// showHideLabel.setOnMouseClicked(new EventHandler<MouseEvent>() {98// @Override99// public void handle(MouseEvent arg0) {100// stackTrace.setVisible(!stackTrace.isVisible());101// }102// });103// vBox.getChildren().add(showHideLabel);104// vBox.getChildren().add(stackTrace);105 TitledPane titledPane = new TitledPane();106 titledPane.setText("异常栈");107 TextArea stackTrace = new TextArea(STACK_TRACE);108 stackTrace.setEditable(false);109 titledPane.setContent(stackTrace);110 titledPane.setExpanded(false);111 vBox.getChildren().add(titledPane);112 Button confirm = new Button("确 定");113 confirm.setOnAction(new EventHandler<ActionEvent>() {114 @Override115 public void handle(ActionEvent event) {116 popup.hide();117 }118 });119 vBox.getChildren().add(confirm);120 popup.setScene(new Scene(vBox));121 return popup;122 }123}

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Source:ParameterizedRunner.java Github

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...72 protected String getName() {73 return super.getName() + " " + configId;74 }75 /* (non-Javadoc)76 * @see org.junit.runners.Parameterized#getChildren()77 */78 @Override79 protected List<Runner> getChildren() {80 List<Runner> children = super.getChildren();81 for (Runner runner : children) {82 if (runner instanceof ParameterizedRequirementsRunner) {83 ParameterizedRequirementsRunner testRunner = (ParameterizedRequirementsRunner) runner;84 testRunner.setConfigId(configId);85 testRunner.setRequirements(requirements);86 testRunner.setRunListeners(runListeners);87 testRunner.setAfterTestExtensions(afterTestExtensions);88 testRunner.setBeforeTestExtensions(beforeTestExtensions);89 if (firstChildRunner == null){90 firstChildRunner = testRunner;91 }92 } else {93 return null;94 }...

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Source:FeatureRunner.java Github

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...33 @Override34 public Description getDescription() {35 if (description == null) {36 description = Description.createSuiteDescription(getName(), cucumberFeature.getGherkinFeature());37 for (ParentRunner child : getChildren()) {38 description.addChild(describeChild(child));39 }40 }41 return description;42 }43 @Override44 protected List<ParentRunner> getChildren() {45 return children;46 }47 @Override48 protected Description describeChild(ParentRunner child) {49 return child.getDescription();50 }51 @Override52 protected void runChild(ParentRunner child, RunNotifier notifier) {53 child.run(notifier);54 }55 @Override56 public void run(RunNotifier notifier) {57 jUnitReporter.uri(cucumberFeature.getPath());58 jUnitReporter.feature(cucumberFeature.getGherkinFeature());...

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Source:ForkJoinSuite.java Github

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...12public class ForkJoinSuite extends Suite {13 private static final Method METHOD_GET_CHILDREN;14 private final Runner runner;15 static {16 String methodName = "getChildren";17 Class<?> clazz = ParentRunner.class;18 try {19 METHOD_GET_CHILDREN = clazz.getDeclaredMethod(methodName);20 } catch (NoSuchMethodException e) {21 throw new IllegalStateException("no " + methodName + "() method on " + clazz, e);22 }23 METHOD_GET_CHILDREN.setAccessible(true);24 }25 public ForkJoinSuite(Class<?> klass, RunnerBuilder builder) throws InitializationError {26 super(klass, Collections.<Runner>emptyList());27 ForkJoinParameters forkJoinParameters = getForkJoinParameters(klass);28 ForkJoinPool forkJoinPool = this.buildForkJoinPool(forkJoinParameters);29 RunnerBuilder runnerBuilder = this.getRunnerBuilder(forkJoinParameters);30 try {31 runner = runnerBuilder.runnerForClass(klass);32 recursivelySetScheduler(runner, forkJoinPool);33 } catch (Throwable e) {34 throw new InitializationError(e);35 }36 }37 @Override38 protected List<Runner> getChildren() {39 return Collections.singletonList(this.runner);40 }41 private static void recursivelySetScheduler(Runner runner, ForkJoinPool forkJoinPool) {42 if (runner instanceof ParentRunner) {43 ParentRunner<?> parentRunner = (ParentRunner<?>) runner;44 parentRunner.setScheduler(new ForkJoinRunnerScheduler(forkJoinPool));45 for (Object each : getChildren(parentRunner)) {46 if (each instanceof Runner) {47 Runner child = (Runner) each;48 recursivelySetScheduler(child, forkJoinPool);49 }50 }51 }52 }53 private static List<?> getChildren(Runner runner) {54 try {55 return (List<?>) METHOD_GET_CHILDREN.invoke(runner);56 } catch (ReflectiveOperationException e) {57 throw new RuntimeException("could not get children", e);58 }59 }60 private ForkJoinParameters getForkJoinParameters(Class<?> klass) throws InitializationError {61 return klass.getAnnotation(ForkJoinParameters.class);62 }63 private RunnerBuilder getRunnerBuilder(ForkJoinParameters parameter) throws InitializationError {64 if (parameter == null) {65 return new JUnit4Builder();66 }67 ...

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Source:ParentStatementRunner.java Github

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...47 protected String getName() {48 return name;49 }50 @Override51 protected List<DescribableStatement> getChildren() {52 return statements;53 }54 @Override55 protected Description describeChild(DescribableStatement child) {56 return child.getDescription();57 }58 @Override59 protected void runChild(final DescribableStatement child, RunNotifier notifier) {60 Description description = describeChild(child);61 Statement statement = child;62 statement = testRule.apply(statement, description);63 ParentRunnerHelper.abortingRunLeaf(statement, description, notifier);64 }65 /**...

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Source:NeodymiumCucumberWrapper.java Github

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...18 cucumber = new Cucumber(clazz);19 }20 // from Cucumber21 @Override22 protected List<ParentRunner<?>> getChildren()23 {24 return cucumber.getChildren();25 }26 @Override27 protected Description describeChild(ParentRunner<?> child)28 {29 return cucumber.describeChild(child);30 }31 @Override32 protected void runChild(ParentRunner<?> child, RunNotifier notifier)33 {34 cucumber.runChild(child, notifier);35 }36 @Override37 protected Statement childrenInvoker(RunNotifier notifier)38 {...

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Source:Pump.java Github

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...15 protected Cucumber newCucumberDelegate(Class<?> testClass) throws InitializationError {16 return new Cucumber(testClass);17 }18 @Override19 protected List<ParentRunner<?>> getChildren() {20 return cucumberDelegate.getChildren();21 }22 @Override23 protected Description describeChild(ParentRunner<?> child) {24 return cucumberDelegate.describeChild(child);25 }26 @Override27 protected void runChild(ParentRunner<?> child, RunNotifier notifier) {28 cucumberDelegate.runChild(child, notifier);29 }30 @Override31 protected Statement childrenInvoker(RunNotifier notifier) {32 return cucumberDelegate.childrenInvoker(notifier);33 }34}...

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getChildren

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1import org.junit.runner.RunWith;2import org.junit.runners.Parameterized;3import org.junit.runners.Parameterized.Parameters;4import org.junit.runners.ParentRunner;5import org.junit.runners.model.FrameworkMethod;6import org.junit.runners.model.InitializationError;7import org.junit.runners.model.TestClass;8import java.util.ArrayList;9import java.util.Collection;10import java.util.List;11@RunWith(Parameterized.class)12public class ParameterizedTest extends ParentRunner<FrameworkMethod> {13 private int value;14 public ParameterizedTest(int value) {15 super(ParameterizedTest.class);16 this.value = value;17 }18 public static Collection<Object[]> getParameters() {19 List<Object[]> parameters = new ArrayList<>();20 parameters.add(new Object[] { 1 });21 parameters.add(new Object[] { 2 });22 parameters.add(new Object[] { 3 });23 parameters.add(new Object[] { 4 });24 parameters.add(new Object[] { 5 });25 return parameters;26 }27 protected List<FrameworkMethod> getChildren() {28 List<FrameworkMethod> children = new ArrayList<>();29 children.add(new FrameworkMethod("test1"));30 children.add(new FrameworkMethod("test2"));31 children.add(new FrameworkMethod("test3"));32 return children;33 }34 protected Description describeChild(FrameworkMethod child) {35 return Description.createTestDescription(getTestClass().getJavaClass(),36 String.format("[%s] %s", value, child.getName()));37 }38 protected void runChild(FrameworkMethod child, RunNotifier notifier) {39 Description description = describeChild(child);40 if (isIgnored(child)) {41 notifier.fireTestIgnored(description);42 } else {43 runLeaf(methodBlock(child), description, notifier);44 }45 }46 private Statement methodBlock(FrameworkMethod method) {47 Object test;48 try {49 test = new TestClass(getTestClass().getJavaClass()).getOnlyConstructor().newInstance();50 } catch (Exception e) {51 throw new RuntimeException("Failed to create test", e);52 }53 Statement statement = methodInvoker(method, test);54 statement = possiblyExpectingExceptions(method, test, statement);55 statement = withPotentialTimeout(method, test, statement);56 statement = withBefores(method, test, statement);57 statement = withAfters(method, test, statement);58 statement = withRules(method, test, statement);59 return statement;

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getChildren

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1import org.junit.runner.JUnitCore2import org.junit.runner.Description3import org.junit.runner.notification.RunNotifier4import org.junit.runners.ParentRunner5import org.junit.runners.model.FrameworkMethod6import org.junit.runners.model.Statement7class TestRunner extends ParentRunner {8 TestRunner(Class testClass) {9 super(testClass)10 }11 protected List getChildren() {12 new FrameworkMethod(getTestClass().getJavaClass().getDeclaredMethod('test1')),13 new FrameworkMethod(getTestClass().getJavaClass().getDeclaredMethod('test2')),14 new FrameworkMethod(getTestClass().getJavaClass().getDeclaredMethod('test3')),15 }16 protected Description describeChild(FrameworkMethod child) {17 return Description.createTestDescription(getTestClass().getJavaClass(), child.getName())18 }19 protected void runChild(FrameworkMethod child, RunNotifier notifier) {20 Description description = describeChild(child)21 if (isIgnored(child)) {22 notifier.fireTestIgnored(description)23 } else {24 runLeaf(statement(child), description, notifier)25 }26 }27 private Statement statement(FrameworkMethod child) {28 try {29 test = newTest()30 } catch (Exception e) {31 return new Fail(e)32 }33 return new InvokeMethod(child, test)34 }35 private static class Fail extends Statement {36 Fail(Throwable targetException) {37 }38 void evaluate() throws Throwable {39 }40 }41 private static class InvokeMethod extends Statement {42 InvokeMethod(FrameworkMethod testMethod, Object target) {43 }44 void evaluate() throws Throwable {45 testMethod.invokeExplosively(target)46 }47 }48}49class TestClass {50 def test1() {51 }52 def test2() {53 }54 def test3() {55 }56}57JUnitCore.runClasses(TestRunner.class)

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getChildren

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1public class JunitRunnerTest {2 public static void main(String[] args) throws Exception {3 JUnitCore jUnitCore = new JUnitCore();4 jUnitCore.run(AllTests.class);5 }6}7public class AllTests {8 public static Test suite() {9 TestSuite suite = new TestSuite();10 suite.addTestSuite(FirstTest.class);11 suite.addTestSuite(SecondTest.class);12 return suite;13 }14}15public class FirstTest {16 public void test1() {17 System.out.println("FirstTest.test1");18 }19}20public class SecondTest {21 public void test2() {22 System.out.println("SecondTest.test2");23 }24}

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getChildren

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1import java.util.List;2import org.junit.runner.Description;3import org.junit.runner.JUnitCore;4import org.junit.runner.Request;5import org.junit.runner.Result;6import org.junit.runner.notification.Failure;7import org.junit.runner.notification.RunListener;8import org.junit.runners.BlockJUnit4ClassRunner;9import org.junit.runners.ParentRunner;10import org.junit.runners.model.InitializationError;11import org.junit.runners.model.RunnerBuilder;12public class AllTestsRunner extends ParentRunner<Runner> {13 private static final String TEST_SUITE_NAME = "com.example.tests.AllTests";14 private final BlockJUnit4ClassRunner blockRunner;15 public AllTestsRunner(Class<?> klass, RunnerBuilder builder) throws InitializationError {16 super(klass);17 blockRunner = new BlockJUnit4ClassRunner(klass);18 setScheduler(blockRunner.getScheduler());19 }20 protected List<Runner> getChildren() {21 return blockRunner.getChildren();22 }23 protected Description describeChild(Runner child) {24 return child.getDescription();25 }26 protected void runChild(Runner child, RunNotifier notifier) {27 child.run(notifier);28 }29 public static void main(String[] args) throws InitializationError {30 Request request = Request.aClass(AllTestsRunner.class);31 Result result = new JUnitCore().run(request);32 for (Failure failure : result.getFailures()) {33 System.out.println(failure.toString());34 }35 }36}37import org.junit.Test;38import org.junit.runner.RunWith;39import org.junit.runners.Suite;40@RunWith(AllTestsRunner.class)41@Suite.SuiteClasses({Test1.class, Test2.class})42public class AllTests {43}44public class Test1 {45 public void test1() {46 System.out.println("Test1");47 }48}49public class Test2 {50 public void test2() {51 System.out.println("Test2");52 }53}

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