covers 'facets/string/fold' test_case String do method :fold do test do s = "This is\na test.\n\nIt clumps\nlines of text." o = "This is a test.\n\nIt clumps lines of text." s.fold.assert == o end test "leave spaces" do s = "This is\na test.\n\n This is pre.\n Leave alone.\n\nIt clumps\nlines of text." o = "This is a test.\n\n This is pre.\n Leave alone.\n\nIt clumps lines of text." s.fold(true).assert == o end end end