How to use shouldBeInstanceButWasNull method of org.assertj.core.error.ShouldBeInstance class

Best Assertj code snippet using org.assertj.core.error.ShouldBeInstance.shouldBeInstanceButWasNull

Source:ShouldBeInstance_create_Test.java

...12 */13package org.assertj.core.error;14import static org.assertj.core.api.Assertions.assertThat;15import static org.assertj.core.error.ShouldBeInstance.shouldBeInstance;16import static org.assertj.core.error.ShouldBeInstance.shouldBeInstanceButWasNull;17import java.io.File;18import org.assertj.core.internal.TestDescription;19import org.assertj.core.presentation.StandardRepresentation;20import org.junit.Before;21import org.junit.Test;22/**23 * Tests for <code>{@link ShouldBeInstance#create(org.assertj.core.description.Description, org.assertj.core.presentation.Representation)}</code>.24 * 25 * @author Alex Ruiz26 * @author Joel Costigliola27 */28public class ShouldBeInstance_create_Test {29  private ErrorMessageFactory factory;30  @Before31  public void setUp() {32    factory = shouldBeInstance("Yoda", File.class);33  }34  @Test35  public void should_create_error_message() {36    String message = factory.create(new TestDescription("Test"), new StandardRepresentation());37    assertThat(message).isEqualTo(String.format(38        "[Test] %nExpecting:%n <\"Yoda\">%nto be an instance of:%n <java.io.File>%nbut was instance of:%n <java.lang.String>"39    ));40  }41  @Test42  public void should_create_shouldBeInstanceButWasNull_error_message() {43    factory = shouldBeInstanceButWasNull("other", File.class);44    String message = factory.create(new TestDescription("Test"), new StandardRepresentation());45    assertThat(message).isEqualTo(String.format(46        "[Test] %nExpecting object:%n \"other\"%nto be an instance of:%n <java.io.File>%nbut was null"47    ));48  }49}...

shouldBeInstanceButWasNull

Using AI Code Generation

1public class ShouldBeInstanceButWasNull_create_Test {2  public ExpectedException thrown = none();3  public void should_create_error_message() {4    ErrorMessageFactory factory = shouldBeInstanceButWasNull("Yoda", Jedi.class);5    String message = factory.create(new TextDescription("Test"), new StandardRepresentation());6    assertThat(message).isEqualTo(String.format("[Test] %n" +7                                                 "but was null"));8  }9}10package org.assertj.core.error;11public class ShouldBeInstanceButWasNull_create_Test {12  public ExpectedException thrown = none();13  public void should_create_error_message() {14    ErrorMessageFactory factory = shouldBeInstanceButWasNull("Yoda", Jedi.class);15    String message = factory.create(new TextDescription("Test"), new StandardRepresentation());16    assertThat(message).isEqualTo(format("[Test] %n" +17                                         "but was null"));18  }19}20package org.assertj.core.error;21public class ShouldBeInstanceButWasNull_create_Test {22  public ExpectedException thrown = none();23  public void should_create_error_message() {24    ErrorMessageFactory factory = shouldBeInstanceButWasNull("Yoda", Jedi.class);25    String message = factory.create(new TextDescription("Test"), new StandardRepresentation());26    assertThat(message).isEqualTo(format("[Test] %n" +27                                         "but was null"));28  }29}30package org.assertj.core.error;31public class ShouldBeInstanceButWasNull_create_Test {32  public ExpectedException thrown = none();33  public void should_create_error_message() {34    ErrorMessageFactory factory = shouldBeInstanceButWasNull("Yoda", Jedi.class);35    String message = factory.create(new TextDescription("Test"), new StandardRepresentation());

shouldBeInstanceButWasNull

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.api.ThrowableAssert.ThrowingCallable;3import org.assertj.core.error.ShouldBeInstance;4import org.assertj.core.internal.ErrorMessages;5import org.assertj.core.presentation.StandardRepresentation;6import org.junit.Test;7public class ShouldBeInstanceTest {8  public void should_create_error_message() {9    String errorMessage = ShouldBeInstance.shouldBeInstanceButWasNull("Yoda", "Jedi").create(new StandardRepresentation());10    Assertions.assertThat(errorMessage).isEqualTo(String.format("[Test] %n" +11                                                                "but was null."));12  }13}14[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ assertj-core ---15[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ assertj-core ---

shouldBeInstanceButWasNull

Using AI Code Generation

1public static org.assertj.core.error.ShouldBeInstance shouldBeInstanceButWasNull(java.lang.Object actual)2public static org.assertj.core.error.ShouldBeInstance shouldBeInstanceButWasNull(java.lang.Object actual,3public static org.assertj.core.error.ShouldBeInstance shouldBeInstanceButWasNull(java.lang.Object actual,4public static org.assertj.core.error.ShouldBeInstance shouldBeInstanceButWasNull(java.lang.Object actual,5public static org.assertj.core.error.ShouldBeInstance shouldBeInstanceButWasNull(java.lang.Object actual,6public static org.assertj.core.error.ShouldBeInstance shouldBeInstanceButWasNull(java.lang.Object actual,7public static org.assertj.core.error.ShouldBeInstance shouldBeInstanceButWasNull(java.lang.Object actual,8public static org.assertj.core.error.ShouldBeInstance shouldBeInstanceButWasNull(java.lang.Object actual,9public static org.assertj.core.error.ShouldBeInstance shouldBeInstanceButWasNull(java.lang.Object actual,10public static org.assertj.core.error.ShouldBeInstance shouldBeInstanceButWasNull(java.lang.Object actual,

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.