org.assertj.core.api

Class ThrowableTypeAssert<T extends Throwable>

java.lang.Object

org.assertj.core.api.ThrowableTypeAssert<T>

Type Parameters:

T - type of throwable to be thrown.

public class ThrowableTypeAssert<T extends Throwable>
extends Object

Assertion class checking Throwable type.

The class itself does not do much, it delegates the work to ThrowableAssertAlternative after calling #isThrownBy(ThrowingCallable).

Method Summary

Modifier and Type	Method and Description
ThrowableAssertAlternative<T>	isThrownBy(ThrowableAssert.ThrowingCallable throwingCallable) Assert that an exception of type T is thrown by the throwingCallable and allow to chain assertions on the thrown exception.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

isThrownBy

public ThrowableAssertAlternative<T> isThrownBy(ThrowableAssert.ThrowingCallable throwingCallable)

Assert that an exception of type T is thrown by the throwingCallable and allow to chain assertions on the thrown exception.

Example:

 assertThatExceptionOfType(IOException.class).isThrownBy(() -> { throw new IOException("boom!"); })
                                       .withMessage("boom!"); 

Parameters:

throwingCallable - code throwing the exception of expected type

Returns:

return a ThrowableAssertAlternative.