private FileTreeAdapter newFileTreeAdapter(MinimalFileTree tree) {
        return new FileTreeAdapter(tree, TestFiles.taskDependencyFactory(), TestFiles.patternSetFactory)
    }

    def toStringUsesDisplayName() {
        MinimalFileTree tree = Mock()
        _ * tree.displayName >> 'display name'

        FileTreeAdapter adapter = newFileTreeAdapter(tree)

        expect: