Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use reportMissingExceptionWithMessage method of org.junit.rules.ExpectedException class

Best junit code snippet using org.junit.rules.ExpectedException.reportMissingExceptionWithMessage

ExpectedException`org.junit.rules.ExpectedException`

The ExpectedException is a rule which helps scripts to verify that the script throws the specific exception or not

Code Snippets

Here are code snippets that can help you understand more how developers are using

Source:DownloadTest.java

...64        // When:65        IP2LocationDownloadService service = new IP2LocationDownloadService(httpClient, "1234");66        Path result = service.download("DB1").to(tempDir.newFolder("i2l-test").toPath());67        // Then:68        thrown.reportMissingExceptionWithMessage("File size check failed: no exception thrown.");69    }70    @Test71    public void whenDownloadedFileIsEmpty_thenExceptionIsThrown() throws Exception {72        // Given:73        thrown.expect(IllegalStateException.class);74        thrown.expectMessage("Downloaded dump is empty.");75        HttpClient httpClient = mock(HttpClient.class);76        doAnswer(invocation -> {77            Files.createFile(invocation.getArgument(1));78            return null;79        }).when(httpClient).download(any(URL.class), any(Path.class));80        // When:81        IP2LocationDownloadService service = new IP2LocationDownloadService(httpClient, "1234");82        Path result = service.download("DB1").to(tempDir.newFolder("i2l-test").toPath());83        // Then:84        thrown.reportMissingExceptionWithMessage("File size check failed: no exception thrown.");85    }86    @Test87    public void whenDownloadTypeIsInvalid_thenExceptionIsThrown() throws Exception {88        // Given:89        thrown.expect(IllegalArgumentException.class);90        thrown.expectMessage("Invalid database type requested: 'DB 1'.");91        HttpClient httpClient = mock(HttpClient.class);92        // When:93        IP2LocationDownloadService service = new IP2LocationDownloadService(httpClient, "1234");94        Path result = service.download("DB 1").to(tempDir.newFolder("i2l-test").toPath());95        // Then:96        thrown.reportMissingExceptionWithMessage("DB type check failed: no exception thrown.");97    }98    @Test99    public void whenDestinationDirIsNotDir_thenExceptionIsThrown() throws Exception {100        // Given:101        File downloadDir = tempDir.newFile("i2l-test");102        thrown.expect(IllegalArgumentException.class);103        thrown.expectMessage("Given dir '" + downloadDir.getAbsolutePath() + "' is not a directory.");104        HttpClient httpClient = mock(HttpClient.class);105        // When:106        IP2LocationDownloadService service = new IP2LocationDownloadService(httpClient, "1234");107        Path result = service.download("DB1").to(downloadDir.toPath());108        // Then:109        thrown.reportMissingExceptionWithMessage("Download dir check failed: no exception thrown.");110    }111    @Test112    public void whenDestinationDirCannotBeCreated_thenExceptionIsThrown() throws Exception {113        // Given:114        File downloadDirParent = tempDir.newFolder("i2l-test");115        File downloadDir = new File(downloadDirParent, "non-existing");116        assertThat(downloadDirParent.setWritable(false), is(true));117        thrown.expect(IllegalArgumentException.class);118        thrown.expectMessage("Could not create dir '" + downloadDir.getAbsolutePath() + "'.");119        HttpClient httpClient = mock(HttpClient.class);120        // When:121        IP2LocationDownloadService service = new IP2LocationDownloadService(httpClient, "1234");122        Path result = service.download("DB1").to(downloadDir.toPath());123        // Then:124        thrown.reportMissingExceptionWithMessage("Download dir check failed: no exception thrown.");125    }126    @Test127    public void whenDestinationDirIsNotWritable_thenExceptionIsThrown() throws Exception {128        // Given:129        File downloadDir = tempDir.newFolder("i2l-test");130        assertThat(downloadDir.setWritable(false), is(true));131        thrown.expect(IllegalArgumentException.class);132        thrown.expectMessage("Given dir '" + downloadDir.getAbsolutePath() + "' is not writable.");133        HttpClient httpClient = mock(HttpClient.class);134        // When:135        IP2LocationDownloadService service = new IP2LocationDownloadService(httpClient, "1234");136        Path result = service.download("DB1").to(downloadDir.toPath());137        // Then:138        thrown.reportMissingExceptionWithMessage("Download dir check failed: no exception thrown.");139    }140}...

Source:TestFBStreamingBackupManager.java

...83        assertTrue(String.format("Expected database file %s to exist", backupPath), Files.exists(backupPath));84    }85    @Test86    public void testSetBadBufferCount() {87        expectedException.reportMissingExceptionWithMessage("Page buffer count must be a positive value")88                .expect(IllegalArgumentException.class);89        backupManager.setRestorePageBufferCount(-1);90    }91    @Test92    public void testSetBadPageSize() {93        expectedException.reportMissingExceptionWithMessage("Page size must be one of 4196, 8192 or 16384)")94                .expect(IllegalArgumentException.class);95        backupManager.setRestorePageSize(4000);96    }97    @Test98    public void testSetBadPageSize_1K_notSupported() {99        expectedException.reportMissingExceptionWithMessage("Page size must be one of 4196, 8192 or 16384)")100                .expect(IllegalArgumentException.class);101        backupManager.setRestorePageSize(PageSizeConstants.SIZE_1K);102    }103    @Test104    public void testSetBadPageSize_2K_notSupported() {105        expectedException.reportMissingExceptionWithMessage("Page size must be one of 4196, 8192 or 16384)")106                .expect(IllegalArgumentException.class);107        backupManager.setRestorePageSize(PageSizeConstants.SIZE_2K);108    }109    /**110     * Tests the valid page sizes expected to be accepted by the BackupManager111     */112    @Test113    public void testValidPageSizes() {114        final int[] pageSizes = { PageSizeConstants.SIZE_4K, PageSizeConstants.SIZE_8K, PageSizeConstants.SIZE_16K };115        for (int pageSize : pageSizes) {116            backupManager.setRestorePageSize(pageSize);117        }118    }119    @Test120    public void testSetBackupPathNotSupported() {121        expectedException.reportMissingExceptionWithMessage("setBackupPath not allowed")122                .expect(IllegalArgumentException.class);123        backupManager.setBackupPath("Some path");124    }125    @Test126    public void testAddBackupPathNotSupported() {127        expectedException.reportMissingExceptionWithMessage("addBackupPath not allowed")128                .expect(IllegalArgumentException.class);129        backupManager.addBackupPath("Some path");130    }131}...

Source:ExpectedRootException.java

...32     *33     * @param message exception detail message34     * @return the rule itself35     */36    public ExpectedRootException reportMissingExceptionWithMessage(String message) {37        rule.reportMissingExceptionWithMessage(message);38        return this;39    }40    @Override41    public Statement apply(Statement base, Description description) {42        return rule.apply(base, description);43    }44    /**45     * Verify that your code throws an exception that is an instance of specific {@code type}.46     * <pre> &#064;Test47     * public void throwsExceptionWithSpecificType() {48     *     thrown.expect(NullPointerException.class);49     *     throw new NullPointerException();50     * }</pre>51     * @param type Throwable type...

Source:PostTest.java

...18    @Test19    public void testNullCreatedDate() {20        expectedEx.expect(IllegalArgumentException.class);21        expectedEx.expectMessage(Post.ERROR_CREATED_DATE_NULL);22        expectedEx.reportMissingExceptionWithMessage("Expected exception with null createdDate");23        new Post(null, user, "Hello");24    }25    @Test26    public void testFutureCreatedDate() {27        expectedEx.expect(IllegalArgumentException.class);28        expectedEx.expectMessage(Post.ERROR_CREATED_DATE_IN_FUTURE);29        expectedEx.reportMissingExceptionWithMessage("Expected exception with future createdDate");30        new Post(Instant.now().plusSeconds(60), user, "Hello");31    }32    @Test33    public void testNullUser() {34        expectedEx.expect(IllegalArgumentException.class);35        expectedEx.expectMessage(Post.ERROR_USER_NULL);36        expectedEx.reportMissingExceptionWithMessage("Expected exception with null user");37        new Post(Instant.now(), null, "Hello");38    }39    @Test40    public void testNullMessage() {41        expectedEx.expect(IllegalArgumentException.class);42        expectedEx.expectMessage(Post.ERROR_MESSAGE_NULL_OR_EMPTY);43        expectedEx.reportMissingExceptionWithMessage("Expected exception with null message");44        new Post(Instant.now(), user, null);45    }46    @Test47    public void testEmptyMessage() {48        expectedEx.expect(IllegalArgumentException.class);49        expectedEx.expectMessage(Post.ERROR_MESSAGE_NULL_OR_EMPTY);50        expectedEx.reportMissingExceptionWithMessage("Expected exception with empty message");51        new Post(Instant.now(), user, "");52    }53}...

Source:UserTest.java

...18    @Test19    public void testCannotHaveNullUsername() {20        expectedEx.expect(IllegalArgumentException.class);21        expectedEx.expectMessage(User.ERROR_USERNAME_NULL_OR_EMPTY);22        expectedEx.reportMissingExceptionWithMessage("Expected exception with null username");23        new User(null);24    }25    @Test26    public void testCannotHaveSpaceInUsername() {27        expectedEx.expect(IllegalArgumentException.class);28        expectedEx.expectMessage(User.ERROR_USERNAME_CONTAINS_SPACE);29        expectedEx.reportMissingExceptionWithMessage("Expected exception with space in username");30        new User(" ");31    }32    @Test33    public void testCannotHaveEmptyUsername() {34        expectedEx.expect(IllegalArgumentException.class);35        expectedEx.expectMessage(User.ERROR_USERNAME_NULL_OR_EMPTY);36        expectedEx.reportMissingExceptionWithMessage("Expected exception with empty username");37        new User("");38    }39    @Test40    public void testEqualityEqual() {41        User one = new User("one");42        assertTrue(one.equals(one));43    }44    @Test45    public void testEqualityNotEqual() {46        User one = new User("one");47        User two = new User("two");48        assertFalse(one.equals(two));49    }50    @Test...

Source:ExpectedRootCauseException.java

...12        return new ExpectedRootCauseException();13    }14    private ExpectedRootCauseException() {15    }16    public ExpectedException reportMissingExceptionWithMessage(String message) {17        return delegate.reportMissingExceptionWithMessage(message);18    }19    public void expect(Matcher<?> matcher) {20        delegate.expect(matcher);21    }22    public void expect(Class<? extends Throwable> type) {23        delegate.expect(type);24    }25    public void expectMessage(String substring) {26        delegate.expectMessage(substring);27    }28    public void expectMessage(Matcher<String> matcher) {29        delegate.expectMessage(matcher);30    }31    public void expectRootCauseMessage(String message) {...

Source:DummyTest.java

...27        axe.attack(dummy);28        axe.attack(dummy);29        expectedException.expect(IllegalStateException.class);30        expectedException.expectMessage("Dummy is dead.");31        expectedException.reportMissingExceptionWithMessage("Axe must throw IllegalStateException");32        axe.attack(dummy);33    }34    @Test35    public void deadDummy_giveExperience_afterDead() {36        axe.attack(dummy);37        axe.attack(dummy);38        Assert.assertEquals("Dummy experience not valid!", dummy.giveExperience(), DUMMY_EXPERIENCE);39    }40    @Test41    public void aliveDummy_cannotGiveXP_ifNotDead() {42        axe.attack(dummy);43        expectedException.expect(IllegalStateException.class);44        expectedException.expectMessage("Target is not dead.");45        expectedException.reportMissingExceptionWithMessage("Dummy is alive, must be dead to give XP");46        dummy.giveExperience();47    }48}...

Source:ExpectedException.java

1public class org.junit.rules.ExpectedException implements org.junit.rules.TestRule {2  public static org.junit.rules.ExpectedException none();3  public org.junit.rules.ExpectedException handleAssertionErrors();4  public org.junit.rules.ExpectedException handleAssumptionViolatedExceptions();5  public org.junit.rules.ExpectedException reportMissingExceptionWithMessage(java.lang.String);6  public org.junit.runners.model.Statement apply(org.junit.runners.model.Statement, org.junit.runner.Description);7  public void expect(org.hamcrest.Matcher<?>);8  public void expect(java.lang.Class<? extends java.lang.Throwable>);9  public void expectMessage(java.lang.String);10  public void expectMessage(org.hamcrest.Matcher<java.lang.String>);11  public void expectCause(org.hamcrest.Matcher<?>);12  public final boolean isAnyExceptionExpected();13  static void access$000(org.junit.rules.ExpectedException, java.lang.Throwable) throws java.lang.Throwable;14  static void access$100(org.junit.rules.ExpectedException) throws java.lang.AssertionError;15}...

reportMissingExceptionWithMessage

Using AI Code Generation

1import org.junit.Test;2import org.junit.Rule;3import org.junit.rules.ExpectedException;4public class ExpectedExceptionTest {5    public ExpectedException thrown = ExpectedException.none();6    public void throwsNothing() {7    }8    public void throwsNullPointerException() {9        thrown.expect(NullPointerException.class);10        throw new NullPointerException();11    }12    public void throwsNullPointerExceptionWithMessage() {13        thrown.expect(NullPointerException.class);14        thrown.expectMessage("happened");15        throw new NullPointerException("Something happened");16    }17    public void throwsNullPointerExceptionWithMessageUsingReportMissingExceptionWithMessage() {18        thrown.reportMissingExceptionWithMessage("Nothing happened");19        throw new NullPointerException("Something happened");20    }21}22	at org.junit.rules.ExpectedException.access$000(ExpectedException.java:103)23	at org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:141)24	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)25	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)26	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)27	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)28	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)29	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)30	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)31	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)32	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)33	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)34	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)35	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)36	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)37	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

reportMissingExceptionWithMessage

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.junit.rules.ExpectedException;4public class ExpectedExceptionTest {5    public ExpectedException thrown = ExpectedException.none();6    public void throwsNothing() {7    }8    public void throwsNullPointerException() {9        thrown.expect(NullPointerException.class);10        throw new NullPointerException();11    }12    public void throwsNullPointerExceptionWithMessage() {13        thrown.expect(NullPointerException.class);14        thrown.expectMessage("happened");15        throw new NullPointerException("Something happened");16    }17    public void throwsNullPointerExceptionWithMessageReportMissingExceptionWithMessage() {18        thrown.reportMissingExceptionWithMessage("No NullPointerException thrown");19        thrown.expect(NullPointerException.class);20        thrown.expectMessage("happened");21        throw new NullPointerException("Something happened");22    }23    public void throwsNullPointerExceptionWithMessageReportMissingExceptionWithMessage2() {24        thrown.reportMissingExceptionWithMessage("No NullPointerException thrown");25        thrown.expect(NullPointerException.class);26        thrown.expectMessage("happened");27    }28    public void throwsNullPointerExceptionWithMessageReportMissingExceptionWithMessage3() {29        thrown.reportMissingExceptionWithMessage("No NullPointerException thrown");30        thrown.expect(NullPointerException.class);31        thrown.expectMessage("happened");32    }33}34at org.junit.internal.runners.JUnit38ClassRunner.init(JUnit38ClassRunner.java:83)35at org.junit.runner.JUnitCore.run(JUnitCore.java:157)36at org.junit.runner.JUnitCore.run(JUnitCore.java:136)37at org.junit.runner.JUnitCore.runMain(JUnitCore.java:115)38at org.junit.runner.JUnitCore.main(JUnitCore.java:77)39at org.junit.internal.runners.statements.ExpectException.evaluate(ExpectException.java:89)40at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)

reportMissingExceptionWithMessage

Using AI Code Generation

1public void testExceptionMessage() {2    ExpectedException thrown = ExpectedException.none();3    thrown.reportMissingExceptionWithMessage("Expected exception: java.lang.ArithmeticException");4    thrown.expect(ArithmeticException.class);5    int i = 1 / 0;6}7    at org.junit.rules.ExpectedException.handleException(ExpectedException.java:282)8    at org.junit.rules.ExpectedException.access$000(ExpectedException.java:94)9    at org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:266)10    at org.junit.rules.RunRules.evaluate(RunRules.java:20)11    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)12    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)13    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)14    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)15    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)16    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)17    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)18    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)19    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)20    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)21    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)22    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)23    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)24    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

reportMissingExceptionWithMessage

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.junit.rules.ExpectedException;4public class ExceptionTest {5    public ExpectedException thrown = ExpectedException.none();6    public void throwsNothing() {7    }8    public void throwsNullPointerException() {9        thrown.expect(NullPointerException.class);10        throw new NullPointerException();11    }12    public void throwsNullPointerExceptionWithMessage() {13        thrown.expect(NullPointerException.class);14        thrown.expectMessage("Hello");15        throw new NullPointerException("Hello");16    }17    public void throwsNullPointerExceptionWithMessage2() {18        thrown.expect(NullPointerException.class);19        thrown.reportMissingExceptionWithMessage("NullPointerException expected");20        throw new NullPointerException("Hello");21    }22    public void throwsNullPointerExceptionWithMessage3() {23        thrown.expect(NullPointerException.class);24        thrown.reportMissingExceptionWithMessage("NullPointerException expected");25    }26    public void throwsNullPointerExceptionWithMessage4() {27        thrown.expect(NullPointerException.class);28        thrown.reportMissingExceptionWithMessage("NullPointerException expected");29    }30    public void throwsNullPointerExceptionWithMessage5() {31        thrown.expect(NullPointerException.class);32        thrown.expectMessage("Hello");33        thrown.reportMissingExceptionWithMessage("NullPointerException expected");34    }35    public void throwsNullPointerExceptionWithMessage6() {36        thrown.expect(NullPointerException.class);37        thrown.expectMessage("Hello");38        thrown.reportMissingExceptionWithMessage("NullPointerException expected");39        throw new NullPointerException("Hello");40    }41    public void throwsNullPointerExceptionWithMessage7() {42        thrown.expect(NullPointerException.class);43        thrown.expectMessage("Hello");44        thrown.reportMissingExceptionWithMessage("NullPointerException expected");45        throw new NullPointerException("Hello");46    }47    public void throwsNullPointerExceptionWithMessage8() {48        thrown.expect(NullPointerException.class);49        thrown.expectMessage("Hello");50        thrown.reportMissingExceptionWithMessage("NullPointerException expected");51        throw new NullPointerException("Hello");52    }53    public void throwsNullPointerExceptionWithMessage9() {54        thrown.expect(NullPointerException.class);55        thrown.expectMessage("Hello");

JUnit Tutorial:

LambdaTest also has a detailed JUnit tutorial explaining its features, importance, advanced use cases, best practices, and more to help you get started with running your automation testing scripts.

JUnit Tutorial Chapters:

Here are the detailed JUnit testing chapters to help you get started:

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.