package preproc // TODO: add different pages as test cases // TODO: test non integral img version import ( "flag" "fmt" "image" "image/png" "os" "testing" ) func TestWipeSides(t *testing.T) { var update = flag.Bool("updatewipe", false, "update golden files") cases := []struct { name string orig string golden string thresh float64 wsize int }{ {"integralwipesides", "testdata/pg2.png", "testdata/pg2_integralwipesides_t0.02_w5.png", 0.02, 5}, {"integralwipesides", "testdata/pg2.png", "testdata/pg2_integralwipesides_t0.05_w5.png", 0.05, 5}, {"integralwipesides", "testdata/pg2.png", "testdata/pg2_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) } actual = Wipe(orig, c.wsize, c.thresh) 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) } }) } }