From 4cb749899583463237cc05e78980dda218bca88c Mon Sep 17 00:00:00 2001
From: "Anthony N. Simon" <anthonynsimon@gmail.com>
Date: Thu, 25 Aug 2016 18:24:48 +0200
Subject: [PATCH] Remove duplicate functionality

---
 segmentation_test.go | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/segmentation_test.go b/segmentation_test.go
index 75b27c3..42631d7 100644
--- a/segmentation_test.go
+++ b/segmentation_test.go
@@ -1,7 +1,6 @@
 package bild
 
 import (
-	"fmt"
 	"image"
 	"testing"
 )
@@ -93,20 +92,7 @@ func TestThreshold(t *testing.T) {
 	for _, c := range cases {
 		actual := Threshold(c.img, c.level)
 		if !grayscaleImageEqual(actual, c.expected) {
-			t.Error(testFailMessage("Threshold", formatGrayImageString(c.expected), formatGrayImageString(actual)))
+			t.Error(testFailMessage("Threshold", formatImageGrayString(c.expected), formatImageGrayString(actual)))
 		}
 	}
 }
-
-func formatGrayImageString(img *image.Gray) string {
-	var result string
-	for y := 0; y < img.Bounds().Dy(); y++ {
-		result += "\n"
-		for x := 0; x < img.Bounds().Dx(); x++ {
-			pos := y*img.Stride + x
-			result += fmt.Sprintf("%#X, ", img.Pix[pos])
-		}
-	}
-	result += "\n"
-	return result
-}