OptionalDoubleSubject (Truth HEAD-SNAPSHOT)

java.lang.Object
- com.google.common.truth.Subject
- - com.google.common.truth.OptionalDoubleSubject

```
public final class OptionalDoubleSubject
extends Subject
```
Propositions for Java 8 OptionalDouble subjects.

Since:

1.3.0 (previously part of truth-java8-extension)

Author:

Ben Douglass

Nested Class Summary
- Nested classes/interfaces inherited from class com.google.common.truth.Subject
  Subject.Factory<SubjectT extends Subject,ActualT>

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`void`	`hasValue(double expected)`	Fails if the `OptionalDouble` does not have the given value or the subject is null.
`void`	`isEmpty()`	Fails if the `OptionalDouble` is present or the subject is null.
`void`	`isPresent()`	Fails if the `OptionalDouble` is empty or the subject is null.
`static Subject.Factory<OptionalDoubleSubject,OptionalDouble>`	`optionalDoubles()`	Deprecated. Instead of `about(optionalDoubles()).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 Detail
  - isPresent
```
public void isPresent()
```
    Fails if the OptionalDouble is empty or the subject is null.
  - isEmpty
```
public void isEmpty()
```
    Fails if the OptionalDouble is present or the subject is null.
  - hasValue
```
public void hasValue(double expected)
```
    Fails if the OptionalDouble does not have the given value or the subject is null. This method is not recommended when the code under test is doing any kind of arithmetic, since the exact result of floating point arithmetic is sensitive to apparently trivial changes. More sophisticated comparisons can be done using assertThat(optional.getAsDouble())…. This method is recommended when the code under test is specified as either copying a value without modification from its input or returning a well-defined literal or constant value.
  - optionalDoubles
```
@Deprecated
public static Subject.Factory<OptionalDoubleSubject,OptionalDouble> optionalDoubles()
```
    Deprecated.
    Instead of about(optionalDoubles()).that(...), use just that(...). Similarly, instead of assertAbout(optionalDoubles()).that(...), use just assertThat(...).
    
    Obsolete factory instance. This factory was previously necessary for assertions like assertWithMessage(...).about(optionalDoubles()).that(optional)..... Now, you can perform assertions like that without the about(...) call.