ch.powerunit

Interface AssertThatCastableObject<T>

Type Parameters:

T - the object type.

All Superinterfaces:

AssertThatObject<T>

All Known Subinterfaces:

AssertThatString

public interface AssertThatCastableObject<T>
extends AssertThatObject<T>

This is an intermediate and optional step on assertion to cast an object into a sub-object.

Since:

0.3.0

Author:

borettim

Method Summary

Modifier and Type	Method and Description
<P extends T> AssertThatObject<P>	as(Class<P> clazz) Cast the received value into a sub-class of the receiver, before applying the matcher.
<P> AssertThatCastableObject<P>	as(Class<P> targetClass, Function<T,P> converter) Convert a received object into another one, based on a passed converter.

Methods inherited from interface ch.powerunit.AssertThatObject

is, is, isA, isNot, isNot, isNotNull, isNull

Method Detail

as

<P extends T> AssertThatObject<P> as(Class<P> clazz)

Cast the received value into a sub-class of the receiver, before applying the matcher.

For example, we have Object myNumber =...; which is known to be an Integer. It is possible to convert it by using :

 assertThat(myNumber).as(Integer.class).is(10);
 

Type Parameters:

P - The subtype for the conversion

Parameters:

clazz - the target class

Returns:

the assertion on the result of the conversion.

as

<P> AssertThatCastableObject<P> as(Class<P> targetClass,
                                   Function<T,P> converter)

Convert a received object into another one, based on a passed converter.

For example, we have String myString =...; which is known to be a String representing an Integer. It is possible to convert it by using:

 assertThat(myString).as(Integer.class, Integer::valueOf).is(1);
 

Type Parameters:

P - the target type

Parameters:

targetClass - he target class

converter - the converter to be used to converter the object to the target class.

Returns:

the assertion on the result of the conversion.

Since:

0.4.0