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

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

Source:Theories.java

...21        super(klass);22    }23    /* access modifiers changed from: protected */24    @Override // org.junit.runners.BlockJUnit4ClassRunner, org.junit.runners.ParentRunner25    public void collectInitializationErrors(List<Throwable> errors) {26        super.collectInitializationErrors(errors);27        validateDataPointFields(errors);28        validateDataPointMethods(errors);29    }30    private void validateDataPointFields(List<Throwable> errors) {31        Field[] fields = getTestClass().getJavaClass().getDeclaredFields();32        for (Field field : fields) {33            if (field.getAnnotation(DataPoint.class) != null || field.getAnnotation(DataPoints.class) != null) {34                if (!Modifier.isStatic(field.getModifiers())) {35                    errors.add(new Error("DataPoint field " + field.getName() + " must be static"));36                }37                if (!Modifier.isPublic(field.getModifiers())) {38                    errors.add(new Error("DataPoint field " + field.getName() + " must be public"));39                }40            }41        }42    }43    private void validateDataPointMethods(List<Throwable> errors) {44        Method[] methods = getTestClass().getJavaClass().getDeclaredMethods();45        for (Method method : methods) {46            if (method.getAnnotation(DataPoint.class) != null || method.getAnnotation(DataPoints.class) != null) {47                if (!Modifier.isStatic(method.getModifiers())) {48                    errors.add(new Error("DataPoint method " + method.getName() + " must be static"));49                }50                if (!Modifier.isPublic(method.getModifiers())) {51                    errors.add(new Error("DataPoint method " + method.getName() + " must be public"));52                }53            }54        }55    }56    /* access modifiers changed from: protected */57    @Override // org.junit.runners.BlockJUnit4ClassRunner58    public void validateConstructor(List<Throwable> errors) {59        validateOnlyOneConstructor(errors);60    }61    /* access modifiers changed from: protected */62    @Override // org.junit.runners.BlockJUnit4ClassRunner63    public void validateTestMethods(List<Throwable> errors) {64        for (FrameworkMethod each : computeTestMethods()) {65            if (each.getAnnotation(Theory.class) != null) {66                each.validatePublicVoid(false, errors);67                each.validateNoTypeParametersOnArgs(errors);68            } else {69                each.validatePublicVoidNoArg(false, errors);70            }71            Iterator<ParameterSignature> it = ParameterSignature.signatures(each.getMethod()).iterator();72            while (it.hasNext()) {73                ParametersSuppliedBy annotation = (ParametersSuppliedBy) it.next().findDeepAnnotation(ParametersSuppliedBy.class);74                if (annotation != null) {75                    validateParameterSupplier(annotation.value(), errors);76                }77            }78        }79    }80    private void validateParameterSupplier(Class<? extends ParameterSupplier> supplierClass, List<Throwable> errors) {81        Constructor<?>[] constructors = supplierClass.getConstructors();82        if (constructors.length != 1) {83            errors.add(new Error("ParameterSupplier " + supplierClass.getName() + " must have only one constructor (either empty or taking only a TestClass)"));84            return;85        }86        Class<?>[] paramTypes = constructors[0].getParameterTypes();87        if (paramTypes.length != 0 && !paramTypes[0].equals(TestClass.class)) {88            errors.add(new Error("ParameterSupplier " + supplierClass.getName() + " constructor must take either nothing or a single TestClass instance"));89        }90    }91    /* access modifiers changed from: protected */92    @Override // org.junit.runners.BlockJUnit4ClassRunner93    public List<FrameworkMethod> computeTestMethods() {94        List<FrameworkMethod> testMethods = new ArrayList<>(super.computeTestMethods());95        List<FrameworkMethod> theoryMethods = getTestClass().getAnnotatedMethods(Theory.class);96        testMethods.removeAll(theoryMethods);97        testMethods.addAll(theoryMethods);98        return testMethods;99    }100    @Override // org.junit.runners.BlockJUnit4ClassRunner101    public Statement methodBlock(FrameworkMethod method) {102        return new TheoryAnchor(method, getTestClass());103    }104    public static class TheoryAnchor extends Statement {105        private List<AssumptionViolatedException> fInvalidParameters = new ArrayList();106        private int successes = 0;107        private final TestClass testClass;108        private final FrameworkMethod testMethod;109        public TheoryAnchor(FrameworkMethod testMethod2, TestClass testClass2) {110            this.testMethod = testMethod2;111            this.testClass = testClass2;112        }113        private TestClass getTestClass() {114            return this.testClass;115        }116        @Override // org.junit.runners.model.Statement117        public void evaluate() throws Throwable {118            runWithAssignment(Assignments.allUnassigned(this.testMethod.getMethod(), getTestClass()));119            boolean hasTheoryAnnotation = this.testMethod.getAnnotation(Theory.class) != null;120            if (this.successes == 0 && hasTheoryAnnotation) {121                Assert.fail("Never found parameters that satisfied method assumptions.  Violated assumptions: " + this.fInvalidParameters);122            }123        }124        /* access modifiers changed from: protected */125        public void runWithAssignment(Assignments parameterAssignment) throws Throwable {126            if (!parameterAssignment.isComplete()) {127                runWithIncompleteAssignment(parameterAssignment);128            } else {129                runWithCompleteAssignment(parameterAssignment);130            }131        }132        /* access modifiers changed from: protected */133        public void runWithIncompleteAssignment(Assignments incomplete) throws Throwable {134            for (PotentialAssignment source : incomplete.potentialsForNextUnassigned()) {135                runWithAssignment(incomplete.assignNext(source));136            }137        }138        /* access modifiers changed from: protected */139        public void runWithCompleteAssignment(final Assignments complete) throws Throwable {140            new BlockJUnit4ClassRunner(getTestClass().getJavaClass()) {141                /* class org.junit.experimental.theories.Theories.TheoryAnchor.AnonymousClass1 */142                /* access modifiers changed from: protected */143                @Override // org.junit.runners.BlockJUnit4ClassRunner, org.junit.runners.ParentRunner144                public void collectInitializationErrors(List<Throwable> list) {145                }146                @Override // org.junit.runners.BlockJUnit4ClassRunner147                public Statement methodBlock(FrameworkMethod method) {148                    final Statement statement = super.methodBlock(method);149                    return new Statement() {150                        /* class org.junit.experimental.theories.Theories.TheoryAnchor.AnonymousClass1.AnonymousClass1 */151                        @Override // org.junit.runners.model.Statement152                        public void evaluate() throws Throwable {153                            try {154                                statement.evaluate();155                                TheoryAnchor.this.handleDataPointSuccess();156                            } catch (AssumptionViolatedException e) {157                                TheoryAnchor.this.handleAssumptionViolation(e);158                            } catch (Throwable e2) {...

Source:ParentRunner.java

...83        this.fScheduler = new C12691();84        this.fTestClass = new TestClass(testClass);85        validate();86    }87    protected void collectInitializationErrors(List<Throwable> errors) {88        validatePublicVoidNoArgMethods(BeforeClass.class, true, errors);89        validatePublicVoidNoArgMethods(AfterClass.class, true, errors);90        validateClassRules(errors);91    }92    protected void validatePublicVoidNoArgMethods(Class<? extends Annotation> annotation, boolean isStatic, List<Throwable> errors) {93        for (FrameworkMethod eachTestMethod : getTestClass().getAnnotatedMethods(annotation)) {94            eachTestMethod.validatePublicVoidNoArg(isStatic, errors);95        }96    }97    private void validateClassRules(List<Throwable> errors) {98        RuleFieldValidator.CLASS_RULE_VALIDATOR.validate(getTestClass(), errors);99        RuleFieldValidator.CLASS_RULE_METHOD_VALIDATOR.validate(getTestClass(), errors);100    }101    protected Statement classBlock(RunNotifier notifier) {102        return withClassRules(withAfterClasses(withBeforeClasses(childrenInvoker(notifier))));103    }104    protected Statement withBeforeClasses(Statement statement) {105        List<FrameworkMethod> befores = this.fTestClass.getAnnotatedMethods(BeforeClass.class);106        return befores.isEmpty() ? statement : new RunBefores(statement, befores, null);107    }108    protected Statement withAfterClasses(Statement statement) {109        List<FrameworkMethod> afters = this.fTestClass.getAnnotatedMethods(AfterClass.class);110        return afters.isEmpty() ? statement : new RunAfters(statement, afters, null);111    }112    private Statement withClassRules(Statement statement) {113        List<TestRule> classRules = classRules();114        return classRules.isEmpty() ? statement : new RunRules(statement, classRules, getDescription());115    }116    protected List<TestRule> classRules() {117        List<TestRule> result = this.fTestClass.getAnnotatedMethodValues(null, ClassRule.class, TestRule.class);118        result.addAll(this.fTestClass.getAnnotatedFieldValues(null, ClassRule.class, TestRule.class));119        return result;120    }121    protected Statement childrenInvoker(RunNotifier notifier) {122        return new C12702(notifier);123    }124    private void runChildren(RunNotifier notifier) {125        for (T each : getFilteredChildren()) {126            this.fScheduler.schedule(new C07063(each, notifier));127        }128        this.fScheduler.finished();129    }130    protected String getName() {131        return this.fTestClass.getName();132    }133    public final TestClass getTestClass() {134        return this.fTestClass;135    }136    protected final void runLeaf(Statement statement, Description description, RunNotifier notifier) {137        EachTestNotifier eachNotifier = new EachTestNotifier(notifier, description);138        eachNotifier.fireTestStarted();139        try {140            statement.evaluate();141        } catch (AssumptionViolatedException e) {142            eachNotifier.addFailedAssumption(e);143        } catch (Throwable e2) {144            eachNotifier.addFailure(e2);145        } finally {146            eachNotifier.fireTestFinished();147        }148    }149    protected Annotation[] getRunnerAnnotations() {150        return this.fTestClass.getAnnotations();151    }152    public Description getDescription() {153        Description description = Description.createSuiteDescription(getName(), getRunnerAnnotations());154        for (T child : getFilteredChildren()) {155            description.addChild(describeChild(child));156        }157        return description;158    }159    public void run(RunNotifier notifier) {160        EachTestNotifier testNotifier = new EachTestNotifier(notifier, getDescription());161        try {162            classBlock(notifier).evaluate();163        } catch (AssumptionViolatedException e) {164            testNotifier.fireTestIgnored();165        } catch (StoppedByUserException e2) {166            throw e2;167        } catch (Throwable e3) {168            testNotifier.addFailure(e3);169        }170    }171    public void filter(Filter filter) throws NoTestsRemainException {172        Iterator<T> iter = getFilteredChildren().iterator();173        while (iter.hasNext()) {174            T each = iter.next();175            if (shouldRun(filter, each)) {176                try {177                    filter.apply(each);178                } catch (NoTestsRemainException e) {179                    iter.remove();180                }181            } else {182                iter.remove();183            }184        }185        if (getFilteredChildren().isEmpty()) {186            throw new NoTestsRemainException();187        }188    }189    public void sort(Sorter sorter) {190        this.fSorter = sorter;191        for (T each : getFilteredChildren()) {192            sortChild(each);193        }194        Collections.sort(getFilteredChildren(), comparator());195    }196    private void validate() throws InitializationError {197        List errors = new ArrayList();198        collectInitializationErrors(errors);199        if (!errors.isEmpty()) {200            throw new InitializationError(errors);201        }202    }203    private List<T> getFilteredChildren() {204        if (this.fFilteredChildren == null) {205            this.fFilteredChildren = new ArrayList(getChildren());206        }207        return this.fFilteredChildren;208    }209    private void sortChild(T child) {210        this.fSorter.apply(child);211    }212    private boolean shouldRun(Filter filter, T each) {...

Source:NestedRunner.java

...178            return new RunAfters(statement,179                    new ArrayList<FrameworkMethod>(), target);180        }181        @Override182        protected void collectInitializationErrors(List<Throwable> errors) {183            validatePublicVoidNoArgMethods(BeforeClass.class, true, errors);184            validatePublicVoidNoArgMethods(AfterClass.class, true, errors);185            // we have to remove this check because we want non-static classes to work186            //validateClassRules(errors);187        }188    }189}...

Source:ConcordionPlus.java

...78        return children;79    }8081    @Override82    protected void collectInitializationErrors(List<Throwable> errors) {83        super.collectInitializationErrors(errors);8485        validateConstructor(errors);86        validateFields(errors);87    }8889    /**90     * Adds to {@code errors} if the test class has more than one constructor,91     * or if the constructor takes parameters. Override if a subclass requires92     * different validation rules.93     */94    protected void validateConstructor(List<Throwable> errors) {95        validateOnlyOneConstructor(errors);96        validateZeroArgConstructor(errors);97    }
...

Source:JMHRunner.java

...35    protected Description describeChild(final Class<?> child) {36        return Description.createTestDescription(getTestClass().getJavaClass(), child.getSimpleName());37    }38    @Override39    protected void collectInitializationErrors(final List<Throwable> errors) {40        super.collectInitializationErrors(errors);41        children = Stream.of(getTestClass().getJavaClass().getClasses())42                .filter(benchmarkClass -> Stream.of(benchmarkClass.getMethods())43                        .anyMatch(m -> m.isAnnotationPresent(Benchmark.class)))44                .collect(toList());45        errors.addAll(children.stream()46                .flatMap(c -> Stream.of(c.getMethods())47                        .filter(m -> m.isAnnotationPresent(Benchmark.class)))48                .filter(m -> !m.isAnnotationPresent(ExpectedPerformances.class))49                .map(m -> new IllegalArgumentException("No @ExpectedPerformances on " + m))50                .collect(toList()));51    }52    @Override53    protected boolean isIgnored(final Class<?> child) {54        return child.isAnnotationPresent(Ignore.class);...

Source:ConcurrentTestRunner.java

...85  protected List<FrameworkMethod> getChildren() {86    return getTestClass().getAnnotatedMethods(Test.class);87  }88  @Override89  protected void collectInitializationErrors(List<Throwable> errors) {90    super.collectInitializationErrors(errors);91    validateTestMethods(getChildren(), errors);92  }93  private void validateTestMethods(List<FrameworkMethod> methods, List<Throwable> errors) {94    for (FrameworkMethod method : methods) {95      if (!Arrays.equals(method.getMethod().getParameterTypes(),96          new Class[] {ParallelExecutor.class})) {97        errors.add(new AssertionFailedError("Incorrect signature on method: " + method98            + ". For a concurrent test, all test methods should take a ParallelExector parameter."));99      }100    }101  }102  @Override103  protected Description describeChild(FrameworkMethod child) {104    return Description.createTestDescription(child.getDeclaringClass(), child.getName());...

Source:FlywayJUnitMigrationTestRunner.java

...62    protected void runChild(Runner child, RunNotifier notifier) {63        child.run(notifier);64    }65    @Override66    protected void collectInitializationErrors(List<Throwable> errors) {67        super.collectInitializationErrors(errors);68        validateClass(errors);69    }70    private void validateClass(List<Throwable> errors) {71        validateProperClassAnnotations(errors);72    }73    private void validateProperClassAnnotations(List<Throwable> errors) {74        for (Annotation annotation : getTestClass().getAnnotations()) {75            if (annotation.annotationType().isAssignableFrom(FlywayMigrationTest.class)) {76                return;77            }78        }79        errors.add(new Exception("Test class run with FlywayJUnitMigrationTestRunner must be annotated with @FlywayMigrationTest"));80    }81}...

collectInitializationErrors

Using AI Code Generation

1import org.junit.runners.BlockJUnit4ClassRunner;2import org.junit.runners.model.InitializationError;3public class MyRunner extends BlockJUnit4ClassRunner {4    public MyRunner(Class<?> klass) throws InitializationError {5        super(klass);6    }7    protected void collectInitializationErrors(List<Throwable> errors) {8        super.collectInitializationErrors(errors);9    }10}11package com.journaldev.junit.runner;12import org.junit.Test;13import org.junit.runner.RunWith;14@RunWith(MyRunner.class)15public class MyRunnerTest {16    public void test() {17        System.out.println("Testing");18    }19}

collectInitializationErrors

Using AI Code Generation

1import org.junit.runners.model.InitializationError;2public class CustomRunner extends ParentRunner {3    public CustomRunner(Class<?> clazz) throws InitializationError {4        super(clazz);5        collectInitializationErrors();6    }7}8import org.junit.runners.model.InitializationError;9public class CustomRunner extends ParentRunner {10    public CustomRunner(Class<?> clazz) throws InitializationError {11        super(clazz);12        getInitializationErrors();13    }14}15import org.junit.runners.model.InitializationError;16public class CustomRunner extends ParentRunner {17    public CustomRunner(Class<?> clazz) throws InitializationError {18        super(clazz);19        getRunnerAnnotations();20    }21}22import org.junit.runners.model.InitializationError;23public class CustomRunner extends ParentRunner {24    public CustomRunner(Class<?> clazz) throws InitializationError {25        super(clazz);26        getRunnerAnnotations();27    }28}29import org.junit.runners.model.InitializationError;30public class CustomRunner extends ParentRunner {31    public CustomRunner(Class<?> clazz) throws InitializationError {32        super(clazz);33        getRunnerAnnotations();34    }35}36import org.junit.runners.model.InitializationError;37public class CustomRunner extends ParentRunner {38    public CustomRunner(Class<?> clazz) throws InitializationError {39        super(clazz);40        getRunnerAnnotations();41    }42}43import org.junit.runners.model.InitializationError;44public class CustomRunner extends ParentRunner {45    public CustomRunner(Class<?> clazz) throws InitializationError {46        super(clazz);47        getRunnerAnnotations();48    }49}50import org.junit.runners.model.InitializationError;

collectInitializationErrors

Using AI Code Generation

1public class JUnit4TestRunner {2    public static void main(String[] args) throws Exception {3        JUnitCore core = new JUnitCore();4        Result result = core.run(Example.class);5        for (Failure failure : result.getFailures()) {6            System.out.println(failure.getMessage());7        }8        if (result.getFailureCount() > 0) {9            System.exit(1);10        }11    }12}13package com.journaldev.junit;14import org.junit.Test;15import static org.junit.Assert.assertEquals;16public class Example {17    public void testAdd() {18        String str = "Junit is working fine";19        assertEquals("Junit is working fine", str);20    }21}22    at org.junit.runners.model.TestClass.getFilteredMethods(TestClass.java:104)23    at org.junit.runners.BlockJUnit4ClassRunner.collectInitializationErrors(BlockJUnit4ClassRunner.java:194)24    at org.junit.runners.BlockJUnit4ClassRunner.<init>(BlockJUnit4ClassRunner.java:51)25    at org.junit.runners.ParentRunner.<init>(ParentRunner.java:97)26    at org.junit.runners.BlockJUnit4ClassRunner.<init>(BlockJUnit4ClassRunner.java:47)27    at org.junit.runners.JUnit4.<init>(JUnit4.java:68)28    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)29    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)30    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)31    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)32    at java.lang.Class.newInstance(Class.java:442)33    at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:104)34    at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:86)35    at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)36    at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)37    at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)38    at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java

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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.