@@ -115,3 +115,18 @@ describe "When setting page layout" do page.size.should == Prawn::Document::PageGeometry::SIZES["A4"].reverse end end + +describe "The mask() feature" do + it "should allow transactional restoration of attributes" do + @pdf = Prawn::Document.new + y, line_width = @pdf.y, @pdf.line_width + @pdf.mask(:y, :line_width) do + @pdf.y = y + 1 + @pdf.line_width = line_width + 1 + @pdf.y.should_not == y + @pdf.line_width.should_not == line_width + end + @pdf.y.should == y + @pdf.line_width.should == line_width + end +end spec/document_spec.rb 55e90a1e74ec8756d36eda8418a283e3d5a9af06 Gregory Brown gregory.t.brown@gmail.com http://github.com/sandal/prawn/commit/a86c58def3765e69a0692e8a7fb98bb106cd8c09 a86c58def3765e69a0692e8a7fb98bb106cd8c09 2008-06-20T13:56:51-07:00 2008-06-20T13:56:51-07:00 Cover masking behaviour [#30] cadf44313be2b829df32704bf7891a2d5bf34f7e Gregory Brown gregory.t.brown@gmail.com