com.google.common.truth

Class OptionalSubject

java.lang.Object

com.google.common.truth.Subject

com.google.common.truth.OptionalSubject

public final class OptionalSubject
extends Subject

Propositions for Java 8 Optional subjects.

Author:

Christian Gruber

Method Summary

Modifier and Type	Method and Description
void	hasValue(Object expected) Fails if the Optional<T> does not have the given value or the subject is null.
void	isEmpty() Fails if the Optional<T> is present or the subject is null.
void	isPresent() Fails if the Optional<T> is empty or the subject is null.
static Subject.Factory<OptionalSubject,Optional<?>>	optionals()

Methods inherited from class com.google.common.truth.Subject

actualCustomStringRepresentation, check, equals, failWithActual, failWithActual, failWithoutActual, hashCode, ignoreCheck, isAnyOf, isEqualTo, isIn, isInstanceOf, isNoneOf, isNotEqualTo, isNotIn, isNotInstanceOf, isNotNull, isNotSameInstanceAs, isNull, isSameInstanceAs, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

isPresent

public void isPresent()

Fails if the Optional<T> is empty or the subject is null.

isEmpty

public void isEmpty()

Fails if the Optional<T> is present or the subject is null.

hasValue

public void hasValue(Object expected)

Fails if the Optional<T> does not have the given value or the subject is null.

To make more complex assertions on the optional's value split your assertion in two:

 assertThat(myOptional).isPresent();
 assertThat(myOptional.get()).contains("foo");
 

optionals

public static Subject.Factory<OptionalSubject,Optional<?>> optionals()