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How to use Assume class of org.junit package

Best junit code snippet using org.junit.Assume

Source:ManagedIdentityCredentialLiveTest.java

...24    private static final String PROPERTY_IDENTITY_ENDPOINT = "IDENTITY_ENDPOINT";25    private static final String PROPERTY_IDENTITY_HEADER = "IDENTITY_HEADER";26    @Test27    public void testMSIEndpointWithSystemAssigned() throws Exception {28        org.junit.Assume.assumeNotNull(CONFIGURATION.get(Configuration.PROPERTY_MSI_ENDPOINT));29        org.junit.Assume.assumeTrue(CONFIGURATION.get(Configuration.PROPERTY_AZURE_CLIENT_ID) == null);30        org.junit.Assume.assumeNotNull(CONFIGURATION.get(AZURE_VAULT_URL));31        IdentityClient client = new IdentityClientBuilder().build();32        StepVerifier.create(client.authenticateToManagedIdentityEndpoint(33            CONFIGURATION.get(PROPERTY_IDENTITY_ENDPOINT),34            CONFIGURATION.get(PROPERTY_IDENTITY_HEADER),35            CONFIGURATION.get(Configuration.PROPERTY_MSI_ENDPOINT),36            CONFIGURATION.get(Configuration.PROPERTY_MSI_SECRET),37            new TokenRequestContext().addScopes("https://management.azure.com/.default")))38            .expectNextMatches(accessToken -> accessToken != null && accessToken.getToken() != null)39            .verifyComplete();40    }41    @Test42    public void testMSIEndpointWithSystemAssignedAccessKeyVault() throws Exception {43        org.junit.Assume.assumeNotNull(CONFIGURATION.get(Configuration.PROPERTY_MSI_ENDPOINT));44        org.junit.Assume.assumeTrue(CONFIGURATION.get(Configuration.PROPERTY_AZURE_CLIENT_ID) == null);45        org.junit.Assume.assumeNotNull(CONFIGURATION.get(AZURE_VAULT_URL));46        ManagedIdentityCredential credential = new ManagedIdentityCredentialBuilder().build();47        SecretClient client = new SecretClientBuilder()48            .credential(credential)49            .vaultUrl(CONFIGURATION.get(AZURE_VAULT_URL))50            .buildClient();51        KeyVaultSecret secret = client.getSecret(VAULT_SECRET_NAME);52        Assert.assertNotNull(secret);53        Assert.assertEquals(VAULT_SECRET_NAME, secret.getName());54        Assert.assertNotNull(secret.getValue());55    }56    @Test57    public void testMSIEndpointWithUserAssigned() throws Exception {58        org.junit.Assume.assumeNotNull(CONFIGURATION.get(Configuration.PROPERTY_MSI_ENDPOINT));59        org.junit.Assume.assumeNotNull(CONFIGURATION.get(Configuration.PROPERTY_AZURE_CLIENT_ID));60        org.junit.Assume.assumeNotNull(CONFIGURATION.get(AZURE_VAULT_URL));61        IdentityClient client = new IdentityClientBuilder()62            .clientId(CONFIGURATION.get(Configuration.PROPERTY_AZURE_CLIENT_ID))63            .build();64        StepVerifier.create(client.authenticateToManagedIdentityEndpoint(65            CONFIGURATION.get(PROPERTY_IDENTITY_ENDPOINT),66            CONFIGURATION.get(PROPERTY_IDENTITY_HEADER),67            CONFIGURATION.get(Configuration.PROPERTY_MSI_ENDPOINT),68            CONFIGURATION.get(Configuration.PROPERTY_MSI_SECRET),69            new TokenRequestContext().addScopes("https://management.azure.com/.default")))70            .expectNextMatches(accessToken -> accessToken != null && accessToken.getToken() != null)71            .verifyComplete();72    }73    @Test74    public void testMSIEndpointWithUserAssignedAccessKeyVault() throws Exception {75        org.junit.Assume.assumeNotNull(CONFIGURATION.get(Configuration.PROPERTY_MSI_ENDPOINT));76        org.junit.Assume.assumeNotNull(CONFIGURATION.get(Configuration.PROPERTY_AZURE_CLIENT_ID));77        org.junit.Assume.assumeNotNull(CONFIGURATION.get(AZURE_VAULT_URL));78        ManagedIdentityCredential credential = new ManagedIdentityCredentialBuilder()79            .clientId(CONFIGURATION.get(Configuration.PROPERTY_AZURE_CLIENT_ID))80            .build();81        SecretClient client = new SecretClientBuilder()82            .credential(credential)83            .vaultUrl(CONFIGURATION.get(AZURE_VAULT_URL))84            .buildClient();85        KeyVaultSecret secret = client.getSecret(VAULT_SECRET_NAME);86        Assert.assertNotNull(secret);87        Assert.assertEquals(VAULT_SECRET_NAME, secret.getName());88        Assert.assertNotNull(secret.getValue());89    }90    @Test91    public void testIMDSEndpointWithSystemAssigned() throws Exception {92        org.junit.Assume.assumeTrue(checkIMDSAvailable());93        org.junit.Assume.assumeTrue(CONFIGURATION.get(Configuration.PROPERTY_AZURE_CLIENT_ID) == null);94        org.junit.Assume.assumeNotNull(CONFIGURATION.get(AZURE_VAULT_URL));95        IdentityClient client = new IdentityClientBuilder().build();96        StepVerifier.create(client.authenticateToIMDSEndpoint(97            new TokenRequestContext().addScopes("https://management.azure.com/.default")))98            .expectNextMatches(accessToken -> accessToken != null && accessToken.getToken() != null)99            .verifyComplete();100    }101    @Test102    public void testIMDSEndpointWithSystemAssignedAccessKeyVault() throws Exception {103        org.junit.Assume.assumeTrue(checkIMDSAvailable());104        org.junit.Assume.assumeTrue(CONFIGURATION.get(Configuration.PROPERTY_AZURE_CLIENT_ID) == null);105        org.junit.Assume.assumeNotNull(CONFIGURATION.get(AZURE_VAULT_URL));106        ManagedIdentityCredential credential = new ManagedIdentityCredentialBuilder().build();107        SecretClient client = new SecretClientBuilder()108            .credential(credential)109            .vaultUrl(CONFIGURATION.get(AZURE_VAULT_URL))110            .buildClient();111        KeyVaultSecret secret = client.getSecret(VAULT_SECRET_NAME);112        Assert.assertNotNull(secret);113        Assert.assertEquals(VAULT_SECRET_NAME, secret.getName());114        Assert.assertNotNull(secret.getValue());115    }116    @Test117    public void testIMDSEndpointWithUserAssigned() throws Exception {118        org.junit.Assume.assumeTrue(checkIMDSAvailable());119        org.junit.Assume.assumeNotNull(CONFIGURATION.get(Configuration.PROPERTY_AZURE_CLIENT_ID));120        org.junit.Assume.assumeNotNull(CONFIGURATION.get(AZURE_VAULT_URL));121        IdentityClient client = new IdentityClientBuilder()122            .clientId(CONFIGURATION.get(Configuration.PROPERTY_AZURE_CLIENT_ID))123            .build();124        StepVerifier.create(client.authenticateToIMDSEndpoint(125            new TokenRequestContext().addScopes("https://management.azure.com/.default")))126            .expectNextMatches(accessToken -> accessToken != null && accessToken.getToken() != null)127            .verifyComplete();128    }129    @Test130    public void testIMDSEndpointWithUserAssignedAccessKeyVault() throws Exception {131        org.junit.Assume.assumeTrue(checkIMDSAvailable());132        org.junit.Assume.assumeNotNull(CONFIGURATION.get(Configuration.PROPERTY_AZURE_CLIENT_ID));133        org.junit.Assume.assumeNotNull(CONFIGURATION.get(AZURE_VAULT_URL));134        ManagedIdentityCredential credential = new ManagedIdentityCredentialBuilder()135            .clientId(CONFIGURATION.get(Configuration.PROPERTY_AZURE_CLIENT_ID))136            .build();137        SecretClient client = new SecretClientBuilder()138            .credential(credential)139            .vaultUrl(CONFIGURATION.get(AZURE_VAULT_URL))140            .buildClient();141        KeyVaultSecret secret = client.getSecret(VAULT_SECRET_NAME);142        Assert.assertNotNull(secret);143        Assert.assertEquals(VAULT_SECRET_NAME, secret.getName());144        Assert.assertNotNull(secret.getValue());145    }146    private boolean checkIMDSAvailable() {147        StringBuilder payload = new StringBuilder();...

Source:AssumptionTest.java

...5import static org.junit.Assert.assertSame;6import static org.junit.Assert.assertThat;7import static org.junit.Assert.assertTrue;8import static org.junit.Assert.fail;9import static org.junit.Assume.assumeNoException;10import static org.junit.Assume.assumeNotNull;11import static org.junit.Assume.assumeThat;12import static org.junit.Assume.assumeTrue;13import static org.junit.experimental.results.PrintableResult.testResult;14import static org.junit.experimental.results.ResultMatchers.isSuccessful;15import java.util.ArrayList;16import java.util.List;17import org.junit.Assume;18import org.junit.Before;19import org.junit.BeforeClass;20import org.junit.Test;21import org.junit.internal.AssumptionViolatedException;22import org.junit.runner.JUnitCore;23import org.junit.runner.Result;24import org.junit.runner.notification.Failure;25import org.junit.runner.notification.RunListener;26public class AssumptionTest {27    public static class HasFailingAssumption {28        @Test29        public void assumptionsFail() {30            assumeThat(3, is(4));31            fail();32        }33    }34    @Test35    public void failedAssumptionsMeanPassing() {36        Result result = JUnitCore.runClasses(HasFailingAssumption.class);37        assertThat(result.getRunCount(), is(1));38        assertThat(result.getIgnoreCount(), is(0));39        assertThat(result.getFailureCount(), is(0));40    }41    private static int assumptionFailures = 0;42    @Test43    public void failedAssumptionsCanBeDetectedByListeners() {44        assumptionFailures = 0;45        JUnitCore core = new JUnitCore();46        core.addListener(new RunListener() {47            @Override48            public void testAssumptionFailure(Failure failure) {49                assumptionFailures++;50            }51        });52        core.run(HasFailingAssumption.class);53        assertThat(assumptionFailures, is(1));54    }55    public static class HasPassingAssumption {56        @Test57        public void assumptionsFail() {58            assumeThat(3, is(3));59            fail();60        }61    }62    @Test63    public void passingAssumptionsScootThrough() {64        Result result = JUnitCore.runClasses(HasPassingAssumption.class);65        assertThat(result.getRunCount(), is(1));66        assertThat(result.getIgnoreCount(), is(0));67        assertThat(result.getFailureCount(), is(1));68    }69    @Test(expected = AssumptionViolatedException.class)70    public void assumeThatWorks() {71        assumeThat(1, is(2));72    }73    @Test74    public void assumeThatPasses() {75        assumeThat(1, is(1));76        assertCompletesNormally();77    }78    @Test79    public void assumeThatPassesOnStrings() {80        assumeThat("x", is("x"));81        assertCompletesNormally();82    }83    @Test(expected = AssumptionViolatedException.class)84    public void assumeNotNullThrowsException() {85        Object[] objects = {1, 2, null};86        assumeNotNull(objects);87    }88    @Test89    public void assumeNotNullPasses() {90        Object[] objects = {1, 2};91        assumeNotNull(objects);92        assertCompletesNormally();93    }94    @Test95    public void assumeNotNullIncludesParameterList() {96        try {97            Object[] objects = {1, 2, null};98            assumeNotNull(objects);99        } catch (AssumptionViolatedException e) {100            assertThat(e.getMessage(), containsString("1, 2, null"));101        } catch (Exception e) {102            fail("Should have thrown AssumptionViolatedException");103        }104    }105    @Test106    public void assumeNoExceptionThrows() {107        final Throwable exception = new NullPointerException();108        try {109            assumeNoException(exception);110            fail("Should have thrown exception");111        } catch (AssumptionViolatedException e) {112            assertThat(e.getCause(), is(exception));113        }114    }115    private void assertCompletesNormally() {116    }117    @Test(expected = AssumptionViolatedException.class)118    public void assumeTrueWorks() {119        Assume.assumeTrue(false);120    }121    public static class HasFailingAssumeInBefore {122        @Before123        public void checkForSomethingThatIsntThere() {124            assumeTrue(false);125        }126        @Test127        public void failing() {128            fail();129        }130    }131    @Test132    public void failingAssumptionInBeforePreventsTestRun() {133        assertThat(testResult(HasFailingAssumeInBefore.class), isSuccessful());134    }135    public static class HasFailingAssumeInBeforeClass {136        @BeforeClass137        public static void checkForSomethingThatIsntThere() {138            assumeTrue(false);139        }140        @Test141        public void failing() {142            fail();143        }144    }145    @Test146    public void failingAssumptionInBeforeClassIgnoresClass() {147        assertThat(testResult(HasFailingAssumeInBeforeClass.class), isSuccessful());148    }149    public static class AssumptionFailureInConstructor {150        public AssumptionFailureInConstructor() {151            assumeTrue(false);152        }153        @Test154        public void shouldFail() {155            fail();156        }157    }158    @Test159    public void failingAssumptionInConstructorIgnoresClass() {160        assertThat(testResult(AssumptionFailureInConstructor.class), isSuccessful());161    }162    @Test(expected = IllegalArgumentException.class)163    public void assumeWithExpectedException() {164        assumeTrue(false);165    }166    final static String message = "Some random message string.";167    final static Throwable t = new Throwable();168    /**169     * @see AssumptionTest#assumptionsWithMessage()170     */171    public static class HasAssumeWithMessage {172        @Test173        public void testMethod() {174            assumeTrue(message, false);175        }176    }177    @Test178    public void assumptionsWithMessage() {179        final List<Failure> failures =180                runAndGetAssumptionFailures(HasAssumeWithMessage.class);181        assertTrue(failures.get(0).getMessage().contains(message));182    }183    /**184     * @see AssumptionTest#assumptionsWithMessageAndCause()185     */186    public static class HasAssumeWithMessageAndCause {187        @Test188        public void testMethod() {189            assumeNoException(message, t);190        }191    }192    @Test193    public void assumptionsWithMessageAndCause() {194        final List<Failure> failures =195                runAndGetAssumptionFailures(HasAssumeWithMessageAndCause.class);196        assertTrue(failures.get(0).getMessage().contains(message));197        assertSame(failures.get(0).getException().getCause(), t);198    }199    public static class HasFailingAssumptionWithMessage {200        @Test201        public void assumptionsFail() {202            assumeThat(message, 3, is(4));203            fail();204        }205    }206    @Test207    public void failedAssumptionsWithMessage() {208        final List<Failure> failures =209                runAndGetAssumptionFailures(HasFailingAssumptionWithMessage.class);...

Source:ObjectContractTest.java

1package org.junit.tests;2import static org.hamcrest.CoreMatchers.is;3import static org.junit.Assert.assertThat;4import static org.junit.Assume.assumeNotNull;5import static org.junit.Assume.assumeThat;6import java.lang.reflect.Method;7import org.junit.Test;8import org.junit.Test.None;9import org.junit.experimental.theories.DataPoints;10import org.junit.experimental.theories.Theories;11import org.junit.experimental.theories.Theory;12import org.junit.runner.RunWith;13import org.junit.runners.model.FrameworkMethod;14@RunWith(Theories.class)15public class ObjectContractTest {16    @DataPoints17    public static Object[] objects = {new FrameworkMethod(toStringMethod()),18            new FrameworkMethod(toStringMethod()), 3, null};19    @Theory...

Source:AssumingInTheoriesTest.java

1package org.junit.tests.experimental.theories;2import static org.junit.tests.experimental.theories.TheoryTestUtils.runTheoryClass;3import org.junit.Assert;4import org.junit.Assume;5import org.junit.Test;6import org.junit.experimental.theories.DataPoint;7import org.junit.experimental.theories.Theories;8import org.junit.experimental.theories.Theory;9import org.junit.runner.Result;10import org.junit.runner.RunWith;11import org.junit.runners.model.InitializationError;12@RunWith(Theories.class)13public class AssumingInTheoriesTest {14    @Test15    public void noTheoryAnnotationMeansAssumeShouldIgnore() {16        Assume.assumeTrue(false);17    }18    @Test19    public void theoryMeansOnlyAssumeShouldFail() throws InitializationError {20        Result result = runTheoryClass(TheoryWithNoUnassumedParameters.class);21        Assert.assertEquals(1, result.getFailureCount());22    }23    /**24     * Simple class that SHOULD fail because no parameters are met.25     */26    public static class TheoryWithNoUnassumedParameters {27        @DataPoint28        public final static boolean FALSE = false;29        @Theory30        public void theoryWithNoUnassumedParameters(boolean value) {31            Assume.assumeTrue(value);32        }33    }34}...

Assume

Using AI Code Generation

1public void testAdd() {2    Assume.assumeTrue(1 == 1);3    assertEquals(2, 1 + 1);4}5public void testAdd() {6    Assume.assumeTrue(1 == 2);7    assertEquals(2, 1 + 1);8}9public void testAdd() {10    Assume.assumeFalse(1 == 1);11    assertEquals(2, 1 + 1);12}13public void testAdd() {14    Assume.assumeFalse(1 == 2);15    assertEquals(2, 1 + 1);16}17public void testAdd() {18    Assume.assumeTrue("This test is ignored", 1 == 1);19    assertEquals(2, 1 + 1);20}21public void testAdd() {22    Assume.assumeTrue("This test is ignored", 1 == 2);23    assertEquals(2, 1 + 1);24}25public void testAdd() {26    Assume.assumeFalse("This test is ignored", 1 == 1);27    assertEquals(2, 1 + 1);28}29public void testAdd() {30    Assume.assumeFalse("This test is ignored", 1 == 2);31    assertEquals(2, 1 + 1);32}33public void testAdd() {34    Assume.assumeNotNull("This test is ignored", null);35    assertEquals(2, 1 +

Assume

Using AI Code Generation

1import org.junit.Assume.assumeTrue;2assumeTrue("reason for skipping the test", condition);3}4public void test() {5}6public void test() {7fail("This test case should be skipped");8}9public void test() {10fail("This test case should not be skipped");11}12public void test() {13fail("This test case should be skipped with a specific reason");14}15public void test() {16fail("This test case should not be skipped with a specific reason");17}18public void test() {19fail("This test case should be skipped with a specific reason and a specific exception");20}

Source: What is a NullPointerException, and how do I fix it?

1|---------------------|---------------------|--------------------|------------|2|      Operation      |     ArrayList       |     LinkedList     |   Winner   |3|---------------------|---------------------|--------------------|------------|4|     get(index)      |       O(1)          |         O(n)       | ArrayList  |5|                     |                     |  n/4 steps in avg  |            |6|---------------------|---------------------|--------------------|------------|7|      add(E)         |       O(1)          |         O(1)       | LinkedList |8|                     |---------------------|--------------------|            |9|                     | O(n) in worst case  |                    |            |10|---------------------|---------------------|--------------------|------------|11|    add(index, E)    |       O(n)          |         O(n)       | LinkedList |12|                     |     n/2 steps       |      n/4 steps     |            |13|                     |---------------------|--------------------|            |14|                     |                     |  O(1) if index = 0 |            |15|---------------------|---------------------|--------------------|------------|16|  remove(index, E)   |       O(n)          |         O(n)       | LinkedList |17|                     |---------------------|--------------------|            |18|                     |     n/2 steps       |      n/4 steps     |            |19|---------------------|---------------------|--------------------|------------|20|  Iterator.remove()  |       O(n)          |         O(1)       | LinkedList |21|  ListIterator.add() |                     |                    |            |22|---------------------|---------------------|--------------------|------------|232425|--------------------------------------|-----------------------------------|26|              ArrayList               |            LinkedList             |27|--------------------------------------|-----------------------------------|28|     Allows fast read access          |   Retrieving element takes O(n)   |29|--------------------------------------|-----------------------------------|30|   Adding an element require shifting | o(1) [but traversing takes time]  |31|       all the later elements         |                                   |32|--------------------------------------|-----------------------------------|33|   To add more elements than capacity |34|    new array need to be allocated    |35|--------------------------------------|36

Source:What is a NullPointerException, and how do I fix it?

|---------------------|---------------------|--------------------|------------|
|      Operation      |     ArrayList       |     LinkedList     |   Winner   |
|---------------------|---------------------|--------------------|------------|
|     get(index)      |       O(1)          |         O(n)       | ArrayList  |
|                     |                     |  n/4 steps in avg  |            |
|---------------------|---------------------|--------------------|------------|
|      add(E)         |       O(1)          |         O(1)       | LinkedList |
|                     |---------------------|--------------------|            |
|                     | O(n) in worst case  |                    |            |
|---------------------|---------------------|--------------------|------------|
|    add(index, E)    |       O(n)          |         O(n)       | LinkedList |
|                     |     n/2 steps       |      n/4 steps     |            |
|                     |---------------------|--------------------|            |
|                     |                     |  O(1) if index = 0 |            |
|---------------------|---------------------|--------------------|------------|
|  remove(index, E)   |       O(n)          |         O(n)       | LinkedList |
|                     |---------------------|--------------------|            |
|                     |     n/2 steps       |      n/4 steps     |            |
|---------------------|---------------------|--------------------|------------|
|  Iterator.remove()  |       O(n)          |         O(1)       | LinkedList |
|  ListIterator.add() |                     |                    |            |
|---------------------|---------------------|--------------------|------------|


|--------------------------------------|-----------------------------------|
|              ArrayList               |            LinkedList             |
|--------------------------------------|-----------------------------------|
|     Allows fast read access          |   Retrieving element takes O(n)   |
|--------------------------------------|-----------------------------------|
|   Adding an element require shifting | o(1) [but traversing takes time]  |
|       all the later elements         |                                   |
|--------------------------------------|-----------------------------------|
|   To add more elements than capacity |
|    new array need to be allocated    |
|--------------------------------------|

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Features of JUnit - Learn about the numerous features of JUnit and why developers prefer it.
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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.
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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.