How to use assumeThatReflectiveOperationException method of org.assertj.core.api.Assumptions class

Best Assertj code snippet using org.assertj.core.api.Assumptions.assumeThatReflectiveOperationException

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...1454 * @return the {@link ThrowableAssert} assertion object to be used for assumptions.1455 * @since 3.23.01456 */​1457 public static ThrowableTypeAssert<ReflectiveOperationException> givenReflectiveOperationException() {1458 return assumeThatReflectiveOperationException();1459 }1460 /​**1461 * Creates a new assumption's instance from a no parameters lambda expression, <code>{@literal () ->} { /​* some code {@literal *}/​ }</​code>.1462 * <p>1463 * Examples:1464 * <p>1465 * <u>No Exception required</​u>:1466 * <p>1467 * Executed test:1468 * <pre><code class='java'> {@literal @Test}1469 * public void given_the_assumption_is_met_the_test_is_executed() {1470 * {@literal givenCode(() ->} {{@literal /​* some code *}/​ }).doesNotThrowAnyException();1471 * /​/​ the remaining code is executed1472 * /​/​ ......

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...1004 *1005 * @return the created assumption for assertion object.1006 * @since 3.23.01007 */​1008 public static ThrowableTypeAssert<ReflectiveOperationException> assumeThatReflectiveOperationException() {1009 return assumeThatExceptionOfType(ReflectiveOperationException.class);1010 }1011 /​**1012 * Allows to capture and then assume on a {@link Throwable} (easier done with lambdas).1013 * <p>1014 * Example :1015 * <pre><code class='java'> {@literal @}Test1016 * public void testException() {1017 * assumeThatThrownBy(() -&gt; { throw new Exception("boom!") }).isInstanceOf(Exception.class)1018 * .hasMessageContaining("boom");1019 * }</​code></​pre>1020 *1021 * @param shouldRaiseThrowable The {@link ThrowingCallable} or lambda with the code that should raise the throwable.1022 * @return the created assumption for assertion object....

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assumeThatReflectiveOperationException

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1package org.example;2import org.assertj.core.api.Assumptions;3import org.junit.jupiter.api.Test;4public class ExampleTest {5 void test() {6 Assumptions.assumeThatReflectiveOperationException(() -> {7 Class.forName("NonExistentClass");8 }).isInstanceOf(ClassNotFoundException.class);9 }10}11at org.junit.platform.commons.util.ReflectionUtils.loadClass(ReflectionUtils.java:686)12at org.junit.platform.commons.util.ReflectionUtils.loadClass(ReflectionUtils.java:672)13at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:115)14at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$6(TestMethodTestDescriptor.java:205)15at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)16at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:201)17at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:137)18at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:71)19at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:135)20at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)21at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)22at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)23at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)24at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)25at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)26at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)27at java.util.ArrayList.forEach(ArrayList.java:1257)28at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)29at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)30at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

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assumeThatReflectiveOperationException

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1import org.assertj.core.api.Assumptions;2import org.junit.jupiter.api.Test;3import static org.assertj.core.api.Assertions.*;4public class AssumptionTest {5 public void testAssumeThatReflectiveOperationException() {6 Assumptions.assumeThatReflectiveOperationException(() -> {7 Class.forName("com.example.InvalidClassName");8 }).isInstanceOf(ClassNotFoundException.class);9 }10}

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assumeThatReflectiveOperationException

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1import org.assertj.core.api.Assumptions;2import org.junit.Test;3import static org.assertj.core.api.Assertions.*;4public class AssertJAssumptions {5 public void testAssumeThatReflectiveOperationException() {6 Assumptions.assumeThatReflectiveOperationException(() -> {7 Class<?> clazz = Class.forName("java.lang.Str

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assumeThatReflectiveOperationException

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1import org.assertj.core.api.Assumptions;2import java.lang.reflect.Method;3public class AssumptionsAssumeThatReflectiveOperationException {4 public static void main(String[] args) throws Exception {5 Method method = Class.forName("java.lang.Class").getMethod("forName", String.class);6 Assumptions.assumeThatReflectiveOperationException(() -> method.invoke(null, "com.example.Class")).isInstanceOf(ClassNotFoundException.class);7 }8}

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assumeThatReflectiveOperationException

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1import org.assertj.core.api.Assumptions;2import org.junit.jupiter.api.Test;3public class AssumptionsDemo {4 void test() {5 Assumptions.assumeThatReflectiveOperationException(() -> {6 });7 }8}9 at java.base/​jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)10 at java.base/​jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)11 at java.base/​jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)12 at java.base/​java.lang.reflect.Method.invoke(Method.java:566)13 at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:688)14 at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:115)15 at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$6(TestMethodTestDescriptor.java:202)16 at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)17 at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:198)18 at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:135)19 at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:69)20 at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:135)21 at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)22 at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)23 at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)24 at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)25 at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)26 at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)27 at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)28 at java.base/​java.util.ArrayList.forEach(ArrayList.java:1541)29 at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)

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