Class OptionalSubject

java.lang.Object

com.google.common.truth.Subject

com.google.common.truth.OptionalSubject

public final class OptionalSubject
extends Subject

A subject for Optional values.

Since:

1.3.0 (previously part of truth-java8-extension)

Nested Class Summary

Nested classes/interfaces inherited from class com.google.common.truth.Subject

Subject.Factory<SubjectT extends Subject, ActualT>

Method Summary

Modifier and Type	Method	Description
void	hasValue(@Nullable Object expected)	Checks that the actual Optional contains the given value.
void	isEmpty()	Checks that the actual Optional does not contain a value.
void	isPresent()	Checks that the actual Optional contains a value.
static Subject.Factory<OptionalSubject, Optional<?>>	optionals()	Deprecated. Instead of about(optionals()).that(...), use just that(...).

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 Details

isPresent

public void isPresent()

Checks that the actual Optional contains a value.

isEmpty

public void isEmpty()

Checks that the actual Optional does not contain a value.

hasValue

public void hasValue(@Nullable Object expected)

Checks that the actual Optional contains the given value.

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

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

optionals

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

Deprecated.

Instead of about(optionals()).that(...), use just that(...). Similarly, instead of assertAbout(optionals()).that(...), use just assertThat(...).

Obsolete factory instance. This factory was previously necessary for assertions like assertWithMessage(...).about(paths()).that(path)..... Now, you can perform assertions like that without the about(...) call.