import java.util.List;
import java.util.Set;

public class CalculatedTaskInputFileCollection extends AbstractFileCollection implements LifecycleAwareValue {
    private final String taskPath;
    private MinimalFileSet calculatedFiles;
    private List<LifecycleAwareValue> targets;
    private Set<File> cachedFiles;
    private boolean taskIsExecuting;

    def "cannot query value before task has started executing"() {
        def calculated = Stub(MinimalFileSet)
        def fileCollection = new CalculatedTaskInputFileCollection(taskDependencyFactory, ":task", calculated)

        calculated.displayName >> "<files>"

        when:
        fileCollection.files

        then:
        def e = thrown(IllegalStateException)

    }

    @Override
    public FileCollection newCalculatedInputFileCollection(Task consumer, MinimalFileSet calculatedFiles, FileCollection... inputs) {
        return new CalculatedTaskInputFileCollection(taskDependencyFactory, consumer.getPath(), calculatedFiles, inputs);
    }

    @Override
    public Provider<RegularFile> file(Provider<File> provider) {