Package org.saynotobugs.confidence.quality.function

Class MapsArgument<In,​DelegateIn,​Out>

  • All Implemented Interfaces:
    Quality<java.util.function.Function<java.util.function.Function<DelegateIn,​Out>,​java.util.function.Function<In,​Out>>>
    public final class MapsArgument<In,​DelegateIn,​Out>
extends java.lang.Object
implements Quality<java.util.function.Function<java.util.function.Function<DelegateIn,​Out>,​java.util.function.Function<In,​Out>>>
    This quality can be used to isolate the logic of the outer function in a delegating function, which enables testing only the actual functions logic, not the logic of the delegate function. 
     OuterFunction
 +-----------------------------------------------------------------------------------+
 |                      DelegateFunction                                             |
 |                     +------------------------------------------+                  |
 | OuterArgument ----> |  DelegateArgument -----> DelegateResult  | ---> OuterResult |
 |                     +------------------------------------------+                  |
 +-----------------------------------------------------------------------------------+
    Example: 
     assertThat(delegate -> x -> delegate.apply(x + 2),
     new MapsArgument<Integer, Integer, Integer>(1, equalTo(3))
 );

    • Constructor Summary

      Constructors 
      Constructor Description
      MapsArgument​(In outerArgument, Quality<? super DelegateIn> delegateArgumentQuality)
      Creates a new instance with outerArgument as the input to the outer function and the delegateArgumentQuality as quality matching the delegate argument.

    • Constructor Detail

      • MapsArgument

        public MapsArgument​(In outerArgument,
                    Quality<? super DelegateIn> delegateArgumentQuality)
        Creates a new instance with outerArgument as the input to the outer function and the delegateArgumentQuality as quality matching the delegate argument.