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authorNick White <git@njw.name>2019-10-08 15:37:07 +0100
committerNick White <git@njw.name>2019-10-08 15:37:07 +0100
commit787d63fc5d13c6250bd33da5a8e1eadbe86188cd (patch)
tree0b6888914ec5a492f95e256095799096ff4d7873 /wipesides_test.go
parentd43c11bf653bfe3c1ad1ed277f1ec08bf155cf98 (diff)
Continue separating the repository; remove all but preproc, and move integralimg package under it
Diffstat (limited to 'wipesides_test.go')
-rw-r--r--wipesides_test.go57
1 files changed, 57 insertions, 0 deletions
diff --git a/wipesides_test.go b/wipesides_test.go
new file mode 100644
index 0000000..d5464e0
--- /dev/null
+++ b/wipesides_test.go
@@ -0,0 +1,57 @@
+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)
+ }
+ })
+ }
+}