How to use isThrowable method of org.junit.matchers.JUnitMatchers class

Best junit code snippet using org.junit.matchers.JUnitMatchers.isThrowable

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...98/​* */​ 99/​* */​ 100/​* */​ 101/​* */​ 102/​* */​ public static <T extends Throwable> Matcher<T> isThrowable(Matcher<T> throwableMatcher) {103/​* 103 */​ return StacktracePrintingMatcher.isThrowable(throwableMatcher);104/​* */​ }105/​* */​ 106/​* */​ 107/​* */​ 108/​* */​ 109/​* */​ 110/​* */​ public static <T extends Exception> Matcher<T> isException(Matcher<T> exceptionMatcher) {111/​* 111 */​ return StacktracePrintingMatcher.isException(exceptionMatcher);112/​* */​ }113/​* */​ }114/​* Location: D:\APPS\yazan\JPBY.jar!\org\junit\matchers\JUnitMatchers.class115 * Java compiler version: 5 (49.0)116 * JD-Core Version: 1.1.3117 */​...

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1package org.junit.rules;2import static org.hamcrest.CoreMatchers.allOf;3import static org.junit.matchers.JUnitMatchers.isThrowable;4import java.util.ArrayList;5import java.util.List;6import org.hamcrest.Matcher;7/​**8 * Builds special matcher used by {@link ExpectedException}.9 */​10class ExpectedExceptionMatcherBuilder {11 private final List<Matcher<?>> matchers = new ArrayList<Matcher<?>>();12 void add(Matcher<?> matcher) {13 matchers.add(matcher);14 }15 boolean expectsThrowable() {16 return !matchers.isEmpty();17 }18 Matcher<Throwable> build() {19 return isThrowable(allOfTheMatchers());20 }21 private Matcher<Throwable> allOfTheMatchers() {22 if (matchers.size() == 1) {23 return cast(matchers.get(0));24 }25 return allOf(castedMatchers());26 }27 @SuppressWarnings({"unchecked", "rawtypes"})28 private List<Matcher<? super Throwable>> castedMatchers() {29 return new ArrayList<Matcher<? super Throwable>>((List) matchers);30 }31 @SuppressWarnings("unchecked")32 private Matcher<Throwable> cast(Matcher<?> singleMatcher) {33 return (Matcher<Throwable>) singleMatcher;...

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isThrowable

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1import org.junit.Test;2import org.junit.matchers.JUnitMatchers;3import static org.junit.Assert.assertThat;4public class ThrowableTest {5 public void test() {6 assertThat(new IllegalArgumentException(), JUnitMatchers.isThrowable(IllegalArgumentException.class));7 }8}

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isThrowable

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1import org.junit.Test;2import org.junit.matchers.JUnitMatchers;3import static org.junit.Assert.assertThat;4public class TestJUnitMatcher {5 public void testThrowable() {6 try {7 int i = 1 /​ 0;8 } catch (Exception e) {9 assertThat(e, JUnitMatchers.isThrowable(ArithmeticException.class));10 }11 }12}13 at org.junit.Assert.assertEquals(Assert.java:115)14 at org.junit.Assert.assertEquals(Assert.java:144)15 at org.junit.matchers.TypeSafeMatcher.describeMismatch(TypeSafeMatcher.java:200)16 at org.junit.matchers.TypeSafeMatcher.describeMismatchSafely(TypeSafeMatcher.java:193)17 at org.junit.matchers.TypeSafeMatcher.describeMismatchSafely(TypeSafeMatcher.java:14)18 at org.junit.matchers.DiagnosingMatcher.matches(DiagnosingMatcher.java:36)19 at org.junit.matchers.JUnitMatchers$IsThrowable.isThrowable(JUnitMatchers.java:60)20 at TestJUnitMatcher.testThrowable(TestJUnitMatcher.java:14)21 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)22 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)23 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)24 at java.lang.reflect.Method.invoke(Method.java:597)25 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)26 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)27 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)28 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)29 at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)30 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)31 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)32 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)33 at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)34 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)35 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:

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isThrowable

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1import static org.junit.Assert.assertThat;2import org.junit.Test;3import org.junit.matchers.JUnitMatchers;4public class ExceptionTest {5 public void testException() {6 try {7 throw new Exception("Testing Exception");8 } catch (Exception e) {9 assertThat(e, JUnitMatchers.isThrowable("Testing Exception"));10 }11 }12}13 at org.junit.Assert.fail(Assert.java:88)14 at org.junit.Assert.failNotEquals(Assert.java:743)15 at org.junit.Assert.assertThat(Assert.java:700)16 at org.junit.Assert.assertThat(Assert.java:708)17 at com.journaldev.ExceptionTest.testException(ExceptionTest.java:16)18 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)19 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)20 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)21 at java.lang.reflect.Method.invoke(Method.java:606)22 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)23 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)24 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)25 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)26 at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)27 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)28 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)29 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)30 at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)31 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)32 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)33 at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)34 at org.junit.runners.ParentRunner.run(ParentRunner.java:292)35 at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)36 at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

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isThrowable

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1assertThat(new RuntimeException(), isThrowable());2assertThat(new RuntimeException("message"), isThrowable("message"));3assertThat(new RuntimeException("message", new Exception()), isThrowable("message", new Exception()));4assertThat(new RuntimeException("message", new Exception()), isThrowable("message", Exception.class));5assertThat(new RuntimeException("message", new Exception("cause message")), isThrowable("message", Exception.class, "cause message"));6assertThat(new RuntimeException("message", new Exception("cause message", new Exception("cause cause message"))), isThrowable("message", Exception.class, "cause message", Exception.class, "cause cause message"));7assertThat(new RuntimeException("message", new Exception("cause message", new Exception("cause cause message", new Exception("cause cause cause message")))), isThrowable("message", Exception.class, "cause message", Exception.class, "cause cause message", Exception.class, "cause cause cause message"));

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isThrowable

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1import static org.junit.Assert.*;2import static org.junit.matchers.JUnitMatchers.*;3import static org.hamcrest.CoreMatchers.*;4import org.junit.Test;5public class ExceptionTest {6 public void testException() {7 try {8 throw new Exception();9 } catch (Exception e) {10 assertThat(e, isThrowable());11 }12 }13}14 at org.junit.Assert.assertEquals(Assert.java:115)15 at org.junit.Assert.assertEquals(Assert.java:144)16 at org.junit.matchers.JUnitMatchers$ThrowableMessageMatcher.matchesSafely(JUnitMatchers.java:54)17 at org.junit.matchers.JUnitMatchers$ThrowableMessageMatcher.matchesSafely(JUnitMatchers.java:1)18 at org.hamcrest.TypeSafeMatcher.matches(TypeSafeMatcher.java:50)19 at org.junit.matchers.JUnitMatchers$1.matchesSafely(JUnitMatchers.java:83)20 at org.junit.matchers.JUnitMatchers$1.matchesSafely(JUnitMatchers.java:1)21 at org.hamcrest.TypeSafeMatcher.matches(TypeSafeMatcher.java:50)22 at org.junit.internal.matchers.StacktracePrintingMatcher.matchesSafely(StacktracePrintingMatcher.java:27)23 at org.junit.internal.matchers.StacktracePrintingMatcher.matchesSafely(StacktracePrintingMatcher.java:1)24 at org.hamcrest.TypeSafeMatcher.matches(TypeSafeMatcher.java:50)25 at org.junit.internal.matchers.StacktracePrintingMatcher.matchesSafely(StacktracePrintingMatcher.java:27)26 at org.junit.internal.matchers.StacktracePrintingMatcher.matchesSafely(StacktracePrintingMatcher.java:1)27 at org.hamcrest.TypeSafeMatcher.matches(TypeSafeMatcher.java:50)28 at org.junit.internal.matchers.StacktracePrintingMatcher.matchesSafely(StacktracePrintingMatcher.java:27)29 at org.junit.internal.matchers.StacktracePrintingMatcher.matchesSafely(StacktracePrintingMatcher.java:1)30 at org.hamcrest.TypeSafeMatcher.matches(TypeSafeMatcher.java:50)31 at org.junit.internal.matchers.StacktracePrintingMatcher.matchesSafely(StacktracePrintingMatcher.java:27)

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isThrowable

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1@Rule public ExpectedException thrown= ExpectedException.none();2public void throwsNothing() {3}4public void throwsNullPointerException() {5thrown.expect(NullPointerException.class);6throw new NullPointerException();7}8public void throwsNullPointerExceptionWithMessage() {9thrown.expect(NullPointerException.class);10thrown.expectMessage("happened");11throw new NullPointerException("what happened");12}13public void throwsIllegalArgumentExceptionWithMessage() {14thrown.expect(IllegalArgumentException.class);15thrown.expectMessage(startsWith("bad"));16throw new IllegalArgumentException("bad argument");17}18public void throwsIllegalArgumentExceptionWithMessageContaining() {19thrown.expect(IllegalArgumentException.class);20thrown.expectMessage(containsString("bad"));21throw new IllegalArgumentException("bad argument");22}23public void throwsIllegalArgumentExceptionWithMessageMatching() {24thrown.expect(IllegalArgumentException.class);25thrown.expectMessage(matchesPattern("bad.*"));26throw new IllegalArgumentException("bad argument");27}28public void throwsIllegalArgumentExceptionWithCause() {29thrown.expect(IllegalArgumentException.class);30thrown.expectCause(isA(NullPointerException.class));31throw new IllegalArgumentException(new NullPointerException());32}33public void throwsIllegalArgumentExceptionWithCauseMessage() {34thrown.expect(IllegalArgumentException.class);35thrown.expectCause(hasMessage("happened"));36throw new IllegalArgumentException(new NullPointerException("what happened"));37}38public void throwsIllegalArgumentExceptionWithCauseMessageContaining() {39thrown.expect(IllegalArgumentException.class);40thrown.expectCause(hasMessage(containsString("happened")));41throw new IllegalArgumentException(new NullPointerException("what happened"));42}43public void throwsIllegalArgumentExceptionWithCauseMessageMatching() {44thrown.expect(IllegalArgumentException.class);45thrown.expectCause(hasMessage(matchesPattern(".*happened")));46throw new IllegalArgumentException(new NullPointerException("what happened"));47}48public void throwsIllegalArgumentExceptionWithCauseMessageContainingAndCause() {49thrown.expect(IllegalArgumentException.class);50thrown.expectCause(allOf(hasMessage(containsString("happened")), isA(NullPointerException.class)));51throw new IllegalArgumentException(new NullPointerException("what happened"));52}53public void throwsIllegalArgumentExceptionWithCauseMessageContainingAndCauseMessage() {54thrown.expect(IllegalArgumentException.class);55thrown.expectCause(allOf(hasMessage(containsString("happened")), hasCause(isA(NullPointerException.class))));56throw new IllegalArgumentException(new IllegalArgumentException(new NullPointerException("what happened")));57}58public void throwsIllegalArgumentExceptionWithCauseMessageContainingAndCauseMessageMatching() {59thrown.expect(IllegalArgumentException.class);60thrown.expectCause(allOf(hasMessage(containsString("happened")), hasCause(hasMessage

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Had the same message. I had to remove the Run/Debug configuration.

In my case, I ran the unit test as a local test before. After that I moved my test to the androidTest package and tried to run it again. Android Studio remembered the last run configuration so it tried to run it again as a local unit test which produced the same error.

After removing the config and running the test again it generated a new configuration and worked.

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https://stackoverflow.com/questions/39282282/class-not-found-empty-test-suite-in-intellij

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