KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use assertNull method of junit.framework.TestCase class

Best junit code snippet using junit.framework.TestCase.assertNull

Source:buggy.java

...110    final org.apache.sling.serviceusermapping.Mapping mapping = new org.apache.sling.serviceusermapping.Mapping(spec.toString());111    junit.framework.TestCase.assertEquals(serviceName, getField(mapping, "serviceName"));112    junit.framework.TestCase.assertEquals(subServiceName, getField(mapping, "subServiceName"));113    if (expectedUserName == null) {114        junit.framework.TestCase.assertNull(getField(mapping, "userName"));115    } else {116        junit.framework.TestCase.assertEquals(expectedUserName, getField(mapping, "userName"));117    }118    if (principalNames == null) {119        junit.framework.TestCase.assertNull(getSetField(mapping, "principalNames"));120    } else {121        junit.framework.TestCase.assertEquals(expectedPrincipalsNames, getSetField(mapping, "principalNames"));122    }123    // mapping124    if (expectedUserName == null) {125        junit.framework.TestCase.assertNull(mapping.map(serviceName, subServiceName));126    } else {127        junit.framework.TestCase.assertEquals(userName, mapping.map(serviceName, subServiceName));128    }129    if (expectedPrincipalsNames == null) {130        junit.framework.TestCase.assertNull(mapping.mapPrincipals(serviceName, subServiceName));131    } else {132        junit.framework.TestCase.assertEquals(expectedPrincipalsNames, mapping.mapPrincipals(serviceName, subServiceName));133    }134    if (subServiceName == null) {135        // Mapping without subServiceName must not match request with any136        // subServiceName137        junit.framework.TestCase.assertNull(mapping.map(serviceName, subServiceName + "-garbage"));138        junit.framework.TestCase.assertNull(mapping.mapPrincipals(serviceName, subServiceName + "-garbage"));139    } else {140        // Mapping with subServiceName must not match request without141        // subServiceName142        junit.framework.TestCase.assertNull(mapping.map(serviceName, null));143        junit.framework.TestCase.assertNull(mapping.mapPrincipals(serviceName, null));144    }145    // no match for different service name146    junit.framework.TestCase.assertNull(mapping.map(serviceName + "-garbage", subServiceName));147    junit.framework.TestCase.assertNull(mapping.mapPrincipals(serviceName + "-garbage", subServiceName));148    // no match for null service name149    junit.framework.TestCase.assertNull(mapping.map(null, subServiceName));150    junit.framework.TestCase.assertNull(mapping.mapPrincipals(null, subServiceName));151}152    private String getField(final Object object, final String fieldName) {153        try {154            Field f = object.getClass().getDeclaredField(fieldName);155            f.setAccessible(true);156            return (String) f.get(object);157        } catch (Exception e) {158            TestCase.fail("Cannot get field " + fieldName + ": " + e.toString());159            return null; // will not get here, quiesce compiler160        }161    }162    private Set<String> getSetField(final Object object, final String fieldName) {163        try {164            Field f = object.getClass().getDeclaredField(fieldName);...

Source:DebugTests.java

...10import org.junit.Test;11import static junit.framework.TestCase.assertEquals;12import static junit.framework.TestCase.assertFalse;13import static junit.framework.TestCase.assertNotNull;14import static junit.framework.TestCase.assertNull;15import static junit.framework.TestCase.assertTrue;16/**17 * <p>Integration tests for the debug-related operations on the Vault HTTP API's.</p>18 */19public class DebugTests {20    @ClassRule21    public static final VaultContainer container = new VaultContainer();22    private Vault vault;23    @BeforeClass24    public static void setupClass() throws IOException, InterruptedException {25        container.initAndUnsealVault();26    }27    @Before28    public void setup() throws VaultException {29        vault = container.getRootVault();30    }31    @Test32    public void testHealth_Plain() throws VaultException {33        final HealthResponse response = vault.debug().health();34        assertTrue(response.getInitialized());35        assertFalse(response.getSealed());36        assertFalse(response.getStandby());37        assertNotNull(response.getServerTimeUTC());38        assertEquals(200, response.getRestResponse().getStatus());39    }40    @Test41    public void testHealth_WithParams() throws VaultException {42        final HealthResponse response = vault.debug().health(null, 212, null, null);43        assertTrue(response.getInitialized());44        assertFalse(response.getSealed());45        assertFalse(response.getStandby());46        assertNotNull(response.getServerTimeUTC());47        assertEquals(212, response.getRestResponse().getStatus());48    }49    /**50     * <p>Altering the default HTTP status codes with optional parameters can cause Vault to return an empty JSON51     * payload, depending on which replacement HTTP status code you specify.</p>52     *53     * <p>For example... Vault still returns a valid JSON payload when you change activeCode to 212 (see test above),54     * but returns an empty payload when you set it to use 204.</p>55     *56     * @throws VaultException57     */58    @Test59    public void testHealth_WonkyActiveCode() throws VaultException {60        final HealthResponse response = vault.debug().health(null, 204, null,61                null);62        assertNull(response.getInitialized());63        assertNull(response.getSealed());64        assertNull(response.getStandby());65        assertNull(response.getServerTimeUTC());66        assertEquals(204, response.getRestResponse().getStatus());67    }68}...

Source:TestDockerImageBuild.java

1package dockerController;2import static junit.framework.TestCase.assertNotNull;3import static junit.framework.TestCase.assertNull;4import static junit.framework.TestCase.assertTrue;5import org.junit.Test;6/**7 *8 * @author cicciog9 */10public class TestDockerImageBuild {11    DockerImageBuild dockerImageBuild = new DockerImageBuild();12    String name = "nginx";13    String buildCommand = "sudo docker build -t ningx .";14    int numberOfExecution = 10;15    String buildable = "true";16    @Test17    public void testAdd() {18        //check for not null value19        assertNotNull(dockerImageBuild);20        //check for null value21        assertNull(dockerImageBuild.getName());22        //check for null value23        assertNull(dockerImageBuild.getBuildCommand());24        //check for null value25        assertNull(dockerImageBuild.getNumberOfExecution());26        //check for null value27        assertNull(dockerImageBuild.getBuildable());28        //check for null value29        assertNull(dockerImageBuild.getAverage());30        //check for null value31        assertNull(dockerImageBuild.getBuild());32        dockerImageBuild.setName(name);33        //check for not null value34        assertNotNull(dockerImageBuild.getName());35        //test getName length method36        assertTrue(dockerImageBuild.getName().length() > 0);37        dockerImageBuild.setBuildCommand(buildCommand);38        //check for not null value39        assertNotNull(dockerImageBuild.getBuildCommand());40        //test getBuildCommand length method41        assertTrue(dockerImageBuild.getBuildCommand().length() > 0);42        dockerImageBuild.setNumberOfExecution(Integer.toString(numberOfExecution));43        //check for not null value44        assertNotNull(dockerImageBuild.getNumberOfExecution());45        //test getNumberOfExecution length method...

Source:AddressTest.java

...23        a.setZip("20171");24        a.setCity("Herndon");25        a.setStreet("Sunrise Valley Dr");26        a.clear();27        assertNull(a.getStreet());28        assertNull(a.getCity());29        assertNull(a.getState());30        assertNull(a.getZip());31        assertNull(a.getCountry());32    }33    public void testSync(){34        Address a = new Address();35        a.setCountry("US");36        a.setState("VA");37        a.setZip("20171");38        a.setCity("Herndon");39        a.setStreet("Sunrise Valley Dr");40        Address a2 = new Address();41        a2.setCountry("IN");42        a2.setState("Kerala");43        a2.setZip("688013");44        a2.setCity("Alappuzha");45        a2.setStreet("Thathampally");46        a2.sync(a);47        assertEquals("US", a2.getCountry());48        assertEquals("VA", a2.getState());49        assertEquals("20171", a2.getZip());50        assertEquals("Herndon", a2.getCity());51        assertEquals("Sunrise Valley Dr", a2.getStreet());52        a2.sync(null);53        assertNull(a2.getStreet());54        assertNull(a2.getCity());55        assertNull(a2.getState());56        assertNull(a2.getZip());57        assertNull(a2.getCountry());58    }59}...

Source:CachedIndexFactoryTest.java

...49  /**50   * Test method for {@link org.melati.poem.util.CachedIndexFactory#get(int)}.51   */52  public void testGet() {53    assertNull(it.get(3)); // Really get it - it is null54    assertNull(it.get(3)); // Get it from cache - it is null55    it.invalidate(3);56    assertNull(it.get(3)); // Really get it - it is null    57  }58  /**59   * Test method for {@link org.melati.poem.util.CachedIndexFactory#invalidate(int)}.60   */61  public void testInvalidateInt() {62    63  }64  /**65   * Test method for {@link org.melati.poem.util.CachedIndexFactory#invalidate()}.66   */67  public void testInvalidate() {68    69  }70}...

Source:UserUnitTests.java

1package com.team11.ditto;2import static junit.framework.TestCase.assertEquals;3import static junit.framework.TestCase.assertNotNull;4import static junit.framework.TestCase.assertNull;5import static junit.framework.TestCase.assertTrue;6import com.team11.ditto.profile_details.User;7import org.junit.Test;8/**9 * Tests for the User Class functionalities10 * @author Courtenay Laing-Kobe11 */12public class UserUnitTests {13    @Test14    /**15     * Creates a sample User for testing16     * @return sample User17     */18    public User mockUser(){19        User user = new User("universalwonder", "notAPassword", 26);20        return user;21    }22    @Test23    /**24     * Tests User constructor25     */26    public void testUserInitialization(){27        User courtenay = mockUser();28        assertEquals(courtenay.getUsername(), "universalwonder");29        assertEquals(courtenay.getPassword(), "notAPassword");30        assertNull(courtenay.getID());31        assertNotNull(courtenay.getFollowMe());32        assertNotNull(courtenay.getIFollow());33        assertNotNull(courtenay.getHabits());34        assertNotNull(courtenay.getProfilePhoto());35    }36    @Test37    /**38     * Test changing User attributes39     */40    public void testUserSetters(){41    }42}...

Source:ResultTest.java

1package org.onosproject.store.consistent.impl;2import static junit.framework.TestCase.assertEquals;3import static junit.framework.TestCase.assertFalse;4import static junit.framework.TestCase.assertNull;5import static junit.framework.TestCase.assertTrue;6import org.junit.Test;7/**8 * Unit tests for Result.9 */10public class ResultTest {11    @Test12    public void testLocked() {13        Result<String> r = Result.locked();14        assertFalse(r.success());15        assertNull(r.value());16        assertEquals(Result.Status.LOCKED, r.status());17    }18    @Test19    public void testOk() {20        Result<String> r = Result.ok("foo");21        assertTrue(r.success());22        assertEquals("foo", r.value());23        assertEquals(Result.Status.OK, r.status());24    }25    @Test26    public void testEquality() {27        Result<String> r1 = Result.ok("foo");28        Result<String> r2 = Result.locked();29        Result<String> r3 = Result.ok("bar");...

Source:TestRepository.java

1package gitCloner;2import junit.framework.TestCase;3import static junit.framework.TestCase.assertEquals;4import static junit.framework.TestCase.assertNotNull;5import static junit.framework.TestCase.assertNull;6import org.junit.Test;7/**8 *9 * @author cicciog10 */11public class TestRepository {12    //test data13    Repository repository = new Repository();14    String link = "/home/Documenti/repositories/";15    String name = "repos";16    @Test17    public void testAdd() {18        //check for not null value19        assertNotNull(repository);20        //test setLink method21        assertNull(repository.getLink());22        repository.setLink(link);23        assertEquals(link, repository.getLink());24        //test setName method25        assertNull(repository.getName());26        repository.setName(name);27        assertEquals(name, repository.getName());28    }29}...

assertNull

Using AI Code Generation

1import static org.junit.Assert.assertNull;2import org.junit.Test;3public class TestJunit1 {4   String message = "Robert";	5   MessageUtil messageUtil = new MessageUtil(message);6   public void testPrintMessage() {	7      System.out.println("Inside testPrintMessage()");    8      assertNull(messageUtil.printMessage());9   }10}11Inside testPrintMessage()12OK (1 test)13package com.journaldev.junit;14import org.junit.Test;15import org.junit.Ignore;16import static org.junit.Assert.assertEquals;17public class TestJunit2 {18   String message = "Robert";	19   MessageUtil messageUtil = new MessageUtil(message);20   @Test(expected = ArithmeticException.class)21   public void testPrintMessage() {	22      System.out.println("Inside testPrintMessage()");    23      messageUtil.printMessage();24   }25}26Inside testPrintMessage()27OK (1 test)28package com.journaldev.junit;29import org.junit.Test;30import org.junit.Ignore;31import static org.junit.Assert.assertEquals;32public class TestJunit3 {33   String message = "Robert";	34   MessageUtil messageUtil = new MessageUtil(message);35   public void testPrintMessage() {	36      System.out.println("Inside testPrintMessage()");    37      assertEquals(message,messageUtil.printMessage());38   }39   public void testSalutationMessage() {40      System.out.println("Inside testSalutationMessage()");41      message = "Hi!" + "Robert";42      assertEquals(message,messageUtil.salutationMessage());43   }44}45Inside testPrintMessage()46OK (1 test)

assertNull

Using AI Code Generation

1import junit.framework.TestCase;2public class AssertNullExample extends TestCase {3  public void testAssertNull() {4    String str1 = "Junit";5    String str2 = null;6    String str3 = "Junit";7    String str4 = null;8    assertNull(str1);9    assertNull(str2);10    assertNull("failure - strings are not null", str3);11    assertNull("failure - strings are not null", str4);12  }13}14	at junit.framework.Assert.fail(Assert.java:47)15	at junit.framework.Assert.assertTrue(Assert.java:20)16	at junit.framework.Assert.assertNull(Assert.java:233)17	at junit.framework.Assert.assertNull(Assert.java:229)18	at AssertNullExample.testAssertNull(AssertNullExample.java:16)19	at junit.framework.TestCase.runTest(TestCase.java:154)20	at junit.framework.TestCase.runBare(TestCase.java:127)21	at junit.framework.TestResult$1.protect(TestResult.java:106)22	at junit.framework.TestResult.runProtected(TestResult.java:124)23	at junit.framework.TestResult.run(TestResult.java:109)24	at junit.framework.TestCase.run(TestCase.java:118)25	at junit.framework.TestSuite.runTest(TestSuite.java:208)26	at junit.framework.TestSuite.run(TestSuite.java:203)27	at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:86)28	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)29	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)30	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)31	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)32	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)33	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)34	at junit.framework.Assert.fail(Assert.java:47)35	at junit.framework.Assert.assertTrue(Assert.java:20)36	at junit.framework.Assert.assertNull(Assert.java:233)37	at junit.framework.Assert.assertNull(Assert.java:229)38	at AssertNullExample.testAssertNull(AssertNullExample.java:17)

assertNull

Using AI Code Generation

1import junit.framework.TestCase;2public class TestAssertNull extends TestCase {3   protected Object val;4   protected void setUp(){5      val = new Object();6   }7   public void testAssertNull() {8      assertNull("val is not null", val);9   }10}

assertNull

Using AI Code Generation

1import static org.junit.Assert.*;2import org.junit.Test;3public class TestClass {4   public void test() {5      String str = "Junit is working fine";6      assertNull("string is not null", str);7   }8}9JUnit Test Case with assertNull() method10JUnit Test Case with assertNotNull() method11assertNotNull(object);12import static org.junit.Assert.*;13import org.junit.Test;14public class TestClass {15   public void test() {16      String str = "Junit is working fine";17      assertNotNull("string is null", str);18   }19}20JUnit Test Case with assertNotNull() method21JUnit Test Case with assertSame() method22assertSame(expected, actual);23import static org.junit.Assert.*;24import org.junit.Test;25public class TestClass {26   public void test() {27      String str1 = "Junit";28      String str2 = "Junit";29      assertSame(str1, str2);30   }31}32JUnit Test Case with assertSame() method33JUnit Test Case with assertNotSame() method34assertNotSame(expected, actual);35import static org.junit.Assert.*;36import org

assertNull

Using AI Code Generation

1import org.junit.Test;2import static org.junit.Assert.*;3public class JUnit4Test {4   public void testAssertNull() {5      String str = "Not Null";6      assertNull("String should be null", str);7   }8}9	at org.junit.Assert.fail(Assert.java:88)10	at org.junit.Assert.assertTrue(Assert.java:41)11	at org.junit.Assert.assertNull(Assert.java:617)12	at org.junit.Assert.assertNull(Assert.java:602)13	at JUnit4Test.testAssertNull(JUnit4Test.java:11)14	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)15	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)16	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)17	at java.lang.reflect.Method.invoke(Method.java:606)18	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)19	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)20	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)21	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)22	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)23	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)24	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)25	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)26	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)27	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)28	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)29	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)30	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)

assertNull

Using AI Code Generation

1import org.junit.Test;2import static org.junit.Assert.*;3public class TestAssertNull {4   public void testAssertNull() {5      String str1 = "Junit is working fine";6      String str2 = null;7      System.out.println("TestAssertNull -> testAssertNull()");8      assertNull("str1 is not null", str1);9      assertNull("str2 is not null", str2);10   }11}12TestAssertNull -> testAssertNull()13	at org.junit.Assert.fail(Assert.java:88)14	at org.junit.Assert.assertTrue(Assert.java:41)15	at org.junit.Assert.assertNull(Assert.java:619)16	at org.junit.Assert.assertNull(Assert.java:630)17	at TestAssertNull.testAssertNull(TestAssertNull.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:50)23	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)24	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)25	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)26	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)27	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)28	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)29	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)30	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)31	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)32	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)33	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)34	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)35	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)

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.