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How to use collectInitializationErrors method of org.junit.runners.BlockJUnit4Runner class

Best junit code snippet using org.junit.runners.BlockJUnit4Runner.collectInitializationErrors

Source:ParameterizedRunnerDelegate.java

...15public interface ParameterizedRunnerDelegate {16    /**17     * Override to use DelegateCommon's implementation18     */19    void collectInitializationErrors(List<Throwable> errors);20    /**21     * Override to use DelegateCommon's implementation22     */23    List<FrameworkMethod> computeTestMethods();24    /**25     * Override to use DelegateCommon's implementation26     */27    Object createTest();28}...

collectInitializationErrors

Using AI Code Generation

1import org.junit.Test;2import org.junit.runner.JUnitCore;3import org.junit.runner.Result;4import org.junit.runner.notification.Failure;5public class TestRunner {6    public static void main(String[] args) {7        Result result = JUnitCore.runClasses(TestJUnit.class);8        for (Failure failure : result.getFailures()) {9            System.out.println(failure.toString());10        }11        System.out.println(result.wasSuccessful());12    }13}14public class TestJUnit {15    public void test() {16        System.out.println("test");17    }18}19public class TestJUnit {20    public void test() {21        System.out.println("test");22    }23    public void test2() {24        System.out.println("test2");25    }26}27public class TestJUnit {28    public void test() {29        System.out.println("test");30    }31    public void test2() {32        System.out.println("test2");33        throw new RuntimeException("error");34    }35}36public class TestJUnit {37    public void test() {38        System.out.println("test");39    }40    public void test2() {41        System.out.println("test2");42        throw new RuntimeException("error");43    }44    public void test3() {45        System.out.println("test3");46    }47}48public class TestJUnit {49    public void test() {50        System.out.println("test");51    }52    public void test2() {53        System.out.println("test2");54        throw new RuntimeException("error");55    }56    public void test3() {57        System.out.println("test3");58        throw new RuntimeException("error");59    }60}

collectInitializationErrors

Using AI Code Generation

1    private void collectInitializationErrors(List<Throwable> errors) {2        try {3            validate();4        } catch (Exception e) {5            errors.add(e);6        }7        try {8            validatePublicVoidNoArgMethods(Before.class, false, errors);9        } catch (Exception e) {10            errors.add(e);11        }12        try {13            validatePublicVoidNoArgMethods(After.class, false, errors);14        } catch (Exception e) {15            errors.add(e);16        }17        try {18            validateTestMethods(errors);19        } catch (Exception e) {20            errors.add(e);21        }22        try {23            validateConstructor(errors);24        } catch (Exception e) {25            errors.add(e);26        }27        try {28            validateInstanceMethods(errors);29        } catch (Exception e) {30            errors.add(e);31        }32    }33    private void validateInstanceMethods(List<Throwable> errors) throws Exception {34        List<FrameworkMethod> methods= getTestClass().getAnnotatedMethods(Test.class);35        for (FrameworkMethod each : methods)36            each.validatePublicVoid(false, errors);37    }38    private void validateConstructor(List<Throwable> errors) {39        if (computeTestMethods().size() != 0) {40            if (!getTestClass().isANonStaticInnerClass()) {41                if (getTestClass().getOnlyConstructor() == null) {42                    String gripe= "Test class should have public zero-argument constructor";43                    errors.add(new Exception(gripe));44                }45            }46        }47    }48    private void validateTestMethods(List<Throwable> errors) {49        List<Throwable> errors= new ArrayList<Throwable>();50        for (FrameworkMethod eachTestMethod : computeTestMethods())51            eachTestMethod.validatePublicVoidNoArg(false, errors);52        if (!errors.isEmpty())53            throw new InitializationError(errors);54    }55    private void validatePublicVoidNoArgMethods(Class<? extends Annotation> annotation, boolean isStatic, List<Throwable> errors) throws Exception {56        List<FrameworkMethod> methods= getTestClass().getAnnotatedMethods(annotation);57        for (FrameworkMethod eachTestMethod : methods)58            eachTestMethod.validatePublicVoid(isStatic, errors);59    }60    private void validate() throws InitializationError {61        List<Throwable> errors= new ArrayList<Throwable>();62        validateNoNonStaticInnerClass(errors);63        validateConstructor(errors);64        validateInstanceMethods(errors);65        if (!errors.isEmpty())66            throw new InitializationError(errors

collectInitializationErrors

Using AI Code Generation

1package com.javacodegeeks.junit;2import org.junit.runner.Description;3import org.junit.runner.notification.Failure;4import org.junit.runner.notification.RunNotifier;5import org.junit.runners.BlockJUnit4ClassRunner;6import org.junit.runners.model.InitializationError;7public class CustomRunner extends BlockJUnit4ClassRunner {8    public CustomRunner(Class<?> klass) throws InitializationError {9        super(klass);10    }11    protected void runChild(final org.junit.runners.model.FrameworkMethod method, RunNotifier notifier) {12        Description description = describeChild(method);13        if (isIgnored(method)) {14            notifier.fireTestIgnored(description);15        } else {16            runLeaf(methodBlock(method), description, notifier);17        }18    }19    protected void runLeaf(org.junit.runners.model.Statement statement, Description description, RunNotifier notifier) {20        RunNotifier customNotifier = new RunNotifier();21        customNotifier.addListener(new CustomRunListener(notifier));22        super.runLeaf(statement, description, customNotifier);23    }24    private class CustomRunListener extends RunNotifier {25        private final RunNotifier notifier;26        public CustomRunListener(RunNotifier notifier) {27            this.notifier = notifier;28        }29        public void fireTestStarted(Description description) throws StoppedByUserException {30            notifier.fireTestStarted(description);31        }32        public void fireTestFailure(Failure failure) {33            notifier.fireTestFailure(failure);34        }35        public void fireTestAssumptionFailed(Failure failure) {36            notifier.fireTestAssumptionFailed(failure);37        }38        public void fireTestIgnored(Description description) {39            notifier.fireTestIgnored(description);40        }41        public void fireTestFinished(Description description) {42            notifier.fireTestFinished(description);43        }44    }45}

collectInitializationErrors

Using AI Code Generation

1public class TestRunner extends BlockJUnit4Runner {2    public TestRunner(Class<?> klass) throws InitializationError {3        super(klass);4    }5    public void run(RunNotifier notifier) {6        List<Throwable> errors = this.collectInitializationErrors();7        if (errors.isEmpty()) {8            super.run(notifier);9        } else {10            for (Throwable error : errors) {11                notifier.fireTestFailure(new Failure(getDescription(), error));12            }13        }14    }15}16@RunWith(TestRunner.class)17public class TestClass {18    public void test1() {19        System.out.println("Test 1");20    }21    public void test2() {22        System.out.println("Test 2");23    }24}25    at org.junit.runners.BlockJUnit4Runner.collectInitializationErrors(BlockJUnit4Runner.java:211)26    at TestRunner.run(TestRunner.java:14)27    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)28    at org.junit.runner.JUnitCore.run(JUnitCore.java:115)29    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234)30    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74)31    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)32    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)33    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)34    at java.lang.reflect.Method.invoke(Method.java:498)35    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)36@RunWith(TestRunner.class)37public class TestClass {38    public static void beforeClass() {39        System.out.println("Before class");40    }41    public void test1() {42        System.out.println("Test 1");43    }

collectInitializationErrors

Using AI Code Generation

1import org.junit.runners.BlockJUnit4Runner;2import org.junit.runners.model.InitializationError;3import org.junit.runners.model.Statement;4import org.junit.runners.model.FrameworkMethod;5import org.junit.runners.model.TestClass;6import java.util.List;7import java.util.ArrayList;8import java.util.Arrays;9public class CollectInitializationErrorsTest {10    public static class TestClass1 {11        public TestClass1() {12            System.out.println("TestClass1 constructor");13        }14    }15    public static class TestClass2 {16        public TestClass2() {17            System.out.println("TestClass2 constructor");18            throw new RuntimeException("TestClass2 constructor exception");19        }20    }21    public static class TestClass3 {22        public TestClass3() {23            System.out.println("TestClass3 constructor");24            throw new RuntimeException("TestClass3 constructor exception");25        }26        public void test() {27            System.out.println("TestClass3.test");28        }29    }30    public static class TestClass4 {31        public TestClass4() {32            System.out.println("TestClass4 constructor");33        }34        public void test() {35            System.out.println("TestClass4.test");36            throw new RuntimeException("TestClass4.test exception");37        }38    }39    public static class TestClass5 {40        public TestClass5() {41            System.out.println("TestClass5 constructor");42        }43        public void test() {44            System.out.println("TestClass5.test");45        }46    }47    public static class TestClass6 {48        public TestClass6() {49            System.out.println("TestClass6 constructor");50            throw new RuntimeException("TestClass6 constructor exception");51        }52        public void test() {53            System.out.println("TestClass6.test");54            throw new RuntimeException("TestClass6.test exception");55        }56    }57    public static class TestClass7 {58        public TestClass7() {59            System.out.println("TestClass7 constructor");60        }61        public void test() {62            System.out.println("TestClass7.test");63        }64    }65    public static class TestClass8 {66        public TestClass8() {67            System.out.println("TestClass8 constructor");68            throw new RuntimeException("TestClass8 constructor exception");69        }70        public void test() {71            System.out.println("TestClass8.test");72        }73    }

collectInitializationErrors

Using AI Code Generation

1import org.junit.runners.BlockJUnit4ClassRunner2import org.junit.runners.model.InitializationError3import org.junit.runners.model.Statement4import org.junit.runners.model.FrameworkMethod5import java.util.ArrayList6class MyBlockJUnit4ClassRunner extends BlockJUnit4ClassRunner {7    def MyBlockJUnit4ClassRunner(Class<?> klass) throws InitializationError {8        super(klass)9    }10    protected Statement methodBlock(FrameworkMethod method) {11        Statement statement = super.methodBlock(method)12        return new Statement() {13            void evaluate() throws Throwable {14                List<Throwable> errors = new ArrayList<Throwable>()15                try {16                    statement.evaluate()17                } catch (Throwable e) {18                    errors.add(e)19                }20                if (errors.isEmpty()) {21                }22                if (errors.size() == 1) {23                    throw errors.get(0)24                }25                throw new MultipleFailureException(errors)26            }27        }28    }29}30import org.junit.runners.BlockJUnit4ClassRunner31import org.junit.runners.model.InitializationError32import org.junit.runners.model.Statement33import org.junit.runners.model.FrameworkMethod34import java.util.ArrayList35class MyBlockJUnit4ClassRunner extends BlockJUnit4ClassRunner {36    def MyBlockJUnit4ClassRunner(Class<?> klass) throws InitializationError {37        super(klass)38    }39    protected Statement methodBlock(FrameworkMethod method) {40        Statement statement = super.methodBlock(method)41        return new Statement() {42            void evaluate() throws Throwable {

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Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
Top Java Unit testing frameworks - Here are the upcoming JUnit automation testing frameworks that you can use in 2023 to boost your unit testing.
What is the JUnit framework
Why is JUnit testing important - Learn the importance and numerous benefits of using the JUnit testing framework.
Features of JUnit - Learn about the numerous features of JUnit and why developers prefer it.
JUnit 5 vs. JUnit 4: Differences - Here is a complete comparison between JUnit 5 and JUnit 4 testing frameworks.
Setting up the JUnit environment - Learn how to set up your JUnit testing environment.
Getting started with JUnit testing - After successfully setting up your JUnit environment, this chapter will help you get started with JUnit testing in no time.
Parallel testing with JUnit - Parallel Testing can be used to reduce test execution time and improve test efficiency. Learn how to perform parallel testing with JUnit.
Annotations in JUnit - When writing automation scripts with JUnit, we can use JUnit annotations to specify the type of methods in our test code. This helps us identify those methods when we run JUnit tests using Selenium WebDriver. Learn in detail what annotations are in JUnit.
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.