lastExecution.getInputFileProperties().keySet(),
            thisExecution.getInputFileProperties().keySet(),
            "Input file",
            executable);
        InputFileChanges nonIncrementalInputFileChanges = incrementalInputProperties.nonIncrementalChanges(
            lastExecution.getInputFileProperties(),
            thisExecution.getInputFileProperties()
        );

    }

    @Override
    public ImmutableSortedMap<String, CurrentFileCollectionFingerprint> getInputFileProperties() {
        return getBeforeExecutionState()
            .map(BeforeExecutionState::getInputFileProperties)
            .orElseGet(super::getInputFileProperties);
    }

        this.inputFileProperties = inputFileProperties;
        this.identity = identity;
    }

    protected IdentityContext(IdentityContext parent) {
        this(parent, parent.getInputProperties(), parent.getInputFileProperties(), parent.getIdentity());
    }

    /**
     * All currently known input properties.
     */
    public ImmutableSortedMap<String, ValueSnapshot> getInputProperties() {
        return inputProperties;

    }

    @Override
    public void visitInputFileProperties(FilePropertyVisitor visitor) {
        getBeforeExecutionState()
            .map(BeforeExecutionState::getInputFileProperties)
            .ifPresent(inputFileProperties -> FilePropertyVisitState.visitInputFileProperties(inputFileProperties, visitor, inputFilePropertySpecs));
    }

    @Override

            ]),
            directory('/foo/sub', [
                regularFile('/foo/sub/two.txt')
            ])
        ])
        def beforeExecutionState = Mock(BeforeExecutionState) {
            getInputFileProperties() >> ImmutableSortedMap.of('foo',
                Mock(CurrentFileCollectionFingerprint) {
                    getHash() >> TestHashCodes.hashCodeFrom(345)
                    getFingerprints() >> [

        return new PreviousExecutionContext(context) {
            @Override
            public ImmutableSortedMap<String, CurrentFileCollectionFingerprint> getInputFileProperties() {
                return inputFiles;
            }
        };
    }

    @Override
    protected ImmutableSortedMap<String, ValueSnapshot> getKnownInputProperties(PreviousExecutionContext context) {

    boolean isDryRun();

    TestTaskFilters getFilters();

    TestTaskForkOptions getForkOptions();

    Stream<CandidateClassFile> getCandidateClassFiles();

    Stream<InputFileProperty> getInputFileProperties();

    Stream<OutputFileProperty> getOutputFileProperties();

            return beforeExecutionState.getInputProperties();
        }

        @Override
        public ImmutableSortedMap<String, CurrentFileCollectionFingerprint> getInputFileProperties() {
            return beforeExecutionState.getInputFileProperties();
        }

        @Override
        public HashCode getCacheKey() {
            return cacheKey;
        }

        @Override

     * Returns the cache key from the previous execution.
     */
    HashCode getCacheKey();

    /**
     * {@inheritDoc}
     */
    @Override
    ImmutableSortedMap<String, FileCollectionFingerprint> getInputFileProperties();

 */
public interface AfterExecutionState extends ExecutionInputState, ExecutionOutputState {
    @Override
    ImmutableSortedMap<String, CurrentFileCollectionFingerprint> getInputFileProperties();

    /**
     * The cache key for the input state.
     */
    HashCode getCacheKey();