mstar/canvas
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

added a boolean to run tests on the software backend

Browse source
This commit is contained in:
Thomas Friedel 2019-04-18 10:49:57 +02:00
parent ec3bde6374
commit 9edbb8da85
1 changed files with 20 additions and 75 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

71
canvas_test.go
View file

@ -17,7 +17,11 @@ import (
"github.com/tfriedel6/canvas/sdlcanvas"
)
var usesw = true
func run(t *testing.T, fn func(cv *canvas.Canvas)) {
var img *image.RGBA
if !usesw {
wnd, cv, err := sdlcanvas.CreateWindow(100, 100, "test")
if err != nil {
t.Fatalf("Failed to create window: %v", err)
@ -31,75 +35,16 @@ func run(t *testing.T, fn func(cv *canvas.Canvas)) {
cv.ClearRect(0, 0, 100, 100)
fn(cv)
img := cv.GetImageData(0, 0, 100, 100)
caller, _, _, ok := runtime.Caller(1)
if !ok {
t.Fatal("Failed to get caller")
}
callerFunc := runtime.FuncForPC(caller)
if callerFunc == nil {
t.Fatal("Failed to get caller function")
}
const prefix = "canvas_test.Test"
callerFuncName := callerFunc.Name()
callerFuncName = callerFuncName[strings.Index(callerFuncName, prefix)+len(prefix):]
fileName := fmt.Sprintf("testdata/%s.png", callerFuncName)
_, err = os.Stat(fileName)
if err != nil && !os.IsNotExist(err) {
t.Fatalf("Failed to stat file \"%s\": %v", fileName, err)
}
if os.IsNotExist(err) {
err = writeImage(img, fileName)
if err != nil {
t.Fatal(err)
}
return
}
f, err := os.Open(fileName)
if err != nil {
t.Fatalf("Failed to open file \"%s\": %v", fileName, err)
}
defer f.Close()
refImg, err := png.Decode(f)
if err != nil {
t.Fatalf("Failed to decode file \"%s\": %v", fileName, err)
}
if b := img.Bounds(); b.Min.X != 0 || b.Min.Y != 0 || b.Max.X != 100 || b.Max.Y != 100 {
t.Fatalf("Image bounds must be 0,0,100,100")
}
if b := refImg.Bounds(); b.Min.X != 0 || b.Min.Y != 0 || b.Max.X != 100 || b.Max.Y != 100 {
t.Fatalf("Image bounds must be 0,0,100,100")
}
for y := 0; y < 100; y++ {
for x := 0; x < 100; x++ {
r1, g1, b1, a1 := img.At(x, y).RGBA()
r2, g2, b2, a2 := refImg.At(x, y).RGBA()
if r1 != r2 || g1 != g2 || b1 != b2 || a1 != a2 {
writeImage(img, fmt.Sprintf("testdata/%s_fail.png", callerFuncName))
t.FailNow()
}
}
}
}
func runsw(t *testing.T, fn func(cv *canvas.Canvas)) {
img = cv.GetImageData(0, 0, 100, 100)
} else {
backend := softwarebackend.New(100, 100)
cv := canvas.New(backend)
cv.SetFillStyle("#000")
cv.FillRect(0, 0, 100, 100)
fn(cv)
img := cv.GetImageData(0, 0, 100, 100)
img = cv.GetImageData(0, 0, 100, 100)
}
caller, _, _, ok := runtime.Caller(1)
if !ok {