KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use checkNull method of org.assertj.core.api.ConcreteAssert class

Best Assertj code snippet using org.assertj.core.api.ConcreteAssert.checkNull

Source:AbstractAssert_get_writable_info_Test.java

...21 */22public class AbstractAssert_get_writable_info_Test {23    @Test24    public void should_keep_specific_error_message_and_description_set_by_user() {25        Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> new ConcreteAssert(6L).as("user description").checkNull()).withMessage("[user description] specific error message");26    }27}...

checkNull

Using AI Code Generation

1String str = null;2assertThat(str).checkNull();3String str = "Hello";4assertThat(str).checkNotNull();5String str = null;6assertThat(str).checkNull();7String str = "Hello";8assertThat(str).checkNotNull();

checkNull

Using AI Code Generation

1assertThat(null).checkNull();2assertThat("not null").checkNotNull();3assertThat(null).checkNull();4assertThat("not null").checkNotNull();5assertThat("not null").checkNotNull();6assertThat(null).checkNull();7assertThat("not null").checkNotNull();8assertThat("not null").checkNotNull();9assertThat(null).checkNull();10assertThat("not null").checkNotNull();11assertThat("not null").checkNotNull();12assertThat(null).checkNull();13assertThat("not null").checkNotNull();14assertThat("not null").checkNotNull();15assertThat(null).checkNull();16assertThat("not null").checkNotNull();17assertThat("not null").checkNotNull();

checkNull

Using AI Code Generation

1package org.example;2import org.assertj.core.api.AbstractAssert;3public class ConcreteAssert extends AbstractAssert<ConcreteAssert, Object> {4    public ConcreteAssert(Object actual) {5        super(actual, ConcreteAssert.class);6    }7    public static ConcreteAssert assertThat(Object actual) {8        return new ConcreteAssert(actual);9    }10    public ConcreteAssert checkNull() {11        if (actual != null) {12            failWithMessage("Expected object to be null, but it was not null");13        }14        return this;15    }16}17package org.example;18import org.junit.Test;19import static org.example.ConcreteAssert.assertThat;20public class ConcreteAssertTest {21    public void testCheckNull() {22        assertThat(null).checkNull();23    }24}

checkNull

Using AI Code Generation

1Object o = null;2assertThat(o).checkNull();3assertThat(o).checkNull();4Object o = new Object();5assertThat(o).checkNotNull();6assertThat(o).checkNotNull();7Object o1 = new Object();8Object o2 = new Object();9assertThat(o1).checkSameAs(o1);10assertThat(o1).checkSameAs(o1);11Object o1 = new Object();12Object o2 = new Object();13assertThat(o1).checkNotSameAs(o2);14assertThat(o1).checkNotSameAs(o2);15Object o = new Object();16assertThat(o).checkInstanceOf(Object.class);17assertThat(o).checkInstanceOf(Object.class);

checkNull

Using AI Code Generation

1assertThat(null).checkNull();2assertThat(null).checkNotNull();3A. SoftAssertions soft = new SoftAssertions();4B. SoftAssertions soft = new SoftAssertions();5C. SoftAssertions soft = new SoftAssertions();6D. SoftAssertions soft = new SoftAssertions();7A. SoftAssertions soft = new SoftAssertions();8B. SoftAssertions soft = new SoftAssertions();9C. SoftAssertions soft = new SoftAssertions();10D. SoftAssertions soft = new SoftAssertions();11SoftAssertions is a class in AssertJ that allows you to write assertions in a test and collect the errors. It is used to create a soft assertion. The SoftAssertions class is used to create a soft assertion. The SoftAssertions class has a method called assertAll() that is used to collect the errors

checkNull

Using AI Code Generation

1    [Test]: def "should throw exception when null"() {2        checkNull(null)3        thrown(NullPointerException)4    }5}6static void checkNull(Object actual) {7    new ConcreteAssert(actual).isNotNull()8}[/code]

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.