// Package draw2d_test gives test coverage with the command: // go test -cover ./... | grep -v "no test" package draw2d_test import ( "image" "testing" "gopkg.in/llgcode/draw2d.v1" ) type sample func(gc draw2d.GraphicContext, ext string) (string, error) func test(t *testing.T, draw sample) { // Initialize the graphic context on an RGBA image dest := image.NewRGBA(image.Rect(0, 0, 297, 210.0)) gc := draw2d.NewGraphicContext(dest) // Draw Android logo output, err := draw(gc, "png") if err != nil { t.Errorf("Drawing %q failed: %v", output, err) return } // Save to png err = draw2d.SaveToPngFile(output, dest) if err != nil { t.Errorf("Saving %q failed: %v", output, err) } }