diff options
Diffstat (limited to 'cleanup/wipesides_test.go')
-rw-r--r-- | cleanup/wipesides_test.go | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/cleanup/wipesides_test.go b/cleanup/wipesides_test.go deleted file mode 100644 index aa3e590..0000000 --- a/cleanup/wipesides_test.go +++ /dev/null @@ -1,105 +0,0 @@ -package cleanup - -// TODO: add different pages as test cases -// TODO: test non integral img version - -import ( - "flag" - "fmt" - "image" - "image/draw" - "image/png" - "os" - "testing" - - "rescribe.xyz/go.git/binarize" -) - -var update = flag.Bool("update", false, "update golden files") - -func decode(s string) (*image.Gray, error) { - f, err := os.Open(s) - defer f.Close() - if err != nil { - return nil, err - } - img, err := png.Decode(f) - if err != nil { - return nil, err - } - b := img.Bounds() - gray := image.NewGray(image.Rect(0, 0, b.Dx(), b.Dy())) - draw.Draw(gray, b, img, b.Min, draw.Src) - return gray, nil -} - -func imgsequal(img1 *image.Gray, img2 *image.Gray) bool { - b := img1.Bounds() - if !b.Eq(img2.Bounds()) { - return false - } - for y := b.Min.Y; y < b.Max.Y; y++ { - for x := b.Min.X; x < b.Max.X; x++ { - r0, g0, b0, a0 := img1.At(x, y).RGBA() - r1, g1, b1, a1 := img2.At(x, y).RGBA() - if r0 != r1 { - return false - } - if g0 != g1 { - return false - } - if b0 != b1 { - return false - } - if a0 != a1 { - return false - } - } - } - return true -} - -func TestWipeSides(t *testing.T) { - cases := []struct { - name string - orig string - golden string - thresh float64 - wsize int - }{ - {"integralwipesides", "testdata/pg1.png", "testdata/pg1_integralwipesides_t0.02_w5.png", 0.02, 5}, - {"integralwipesides", "testdata/pg1.png", "testdata/pg1_integralwipesides_t0.05_w5.png", 0.05, 5}, - {"integralwipesides", "testdata/pg1.png", "testdata/pg1_integralwipesides_t0.05_w25.png", 0.05, 25}, - } - - for _, c := range cases { - t.Run(fmt.Sprintf("%s_%0.2f_%d", c.name, c.thresh, c.wsize), func(t *testing.T) { - var actual *image.Gray - orig, err := decode(c.orig) - if err != nil { - t.Fatalf("Could not open file %s: %v\n", c.orig, err) - } - integral := binarize.Integralimg(orig) - lowedge, highedge := Findedges(integral, c.wsize, c.thresh) - actual = Wipesides(orig, lowedge, highedge) - if *update { - f, err := os.Create(c.golden) - defer f.Close() - if err != nil { - t.Fatalf("Could not open file %s to update: %v\n", c.golden, err) - } - err = png.Encode(f, actual) - if err != nil { - t.Fatalf("Could not encode update of %s: %v\n", c.golden, err) - } - } - golden, err := decode(c.golden) - if err != nil { - t.Fatalf("Could not open file %s: %v\n", c.golden, err) - } - if !imgsequal(golden, actual) { - t.Errorf("Processed %s differs to %s\n", c.orig, c.golden) - } - }) - } -} |