diff --git a/I2_NeuronalerAbsturz/Start_Mac/imageInputTests.c b/I2_NeuronalerAbsturz/Start_Mac/imageInputTests.c
index 268910f..851cb89 100644
--- a/I2_NeuronalerAbsturz/Start_Mac/imageInputTests.c
+++ b/I2_NeuronalerAbsturz/Start_Mac/imageInputTests.c
@@ -6,23 +6,20 @@
 #include "imageInput.h"
 
 
-static void prepareImageFile(const char *path, unsigned short int width, unsigned short int height, unsigned int short numberOfImages, unsigned char label, unsigned short greyScaleTest)
+static void prepareImageFile(const char *path, unsigned short int width, unsigned short int height, unsigned int short numberOfImages, unsigned char label)
 {
     FILE *file = fopen(path, "wb");
 
     if(file != NULL)
     {
         const char *fileTag = "__info2_image_file_format__";
-        GrayScalePixelType *zeroBuffer = (GrayScalePixelType *)calloc(numberOfImages * width * height, sizeof(GrayScalePixelType));
+        GrayScalePixelType *Buffer = (GrayScalePixelType *)calloc(numberOfImages * width * height, sizeof(GrayScalePixelType));
 
-        if(zeroBuffer != NULL)
+        if(Buffer != NULL)
         {
-            if(greyScaleTest)
+            for(unsigned int i = 0; i < (numberOfImages * width * height); i++)
             {
-                for(unsigned int i = 0; i < (numberOfImages * width * height); i++)
-                {
-                    zeroBuffer[i] = (GrayScalePixelType)i;
-                }
+                Buffer[i] = (GrayScalePixelType)i;
             }
 
             fwrite(fileTag, sizeof(fileTag[0]), strlen(fileTag), file);
@@ -32,11 +29,11 @@ static void prepareImageFile(const char *path, unsigned short int width, unsigne
 
             for(int i = 0; i < numberOfImages; i++)
             {
-                fwrite(zeroBuffer, sizeof(GrayScalePixelType), width * height, file);
+                fwrite(Buffer, sizeof(GrayScalePixelType), width * height, file);
                 fwrite(&label, sizeof(unsigned char), 1, file);
             }
 
-            free(zeroBuffer);
+            free(Buffer);
         }
 
         fclose(file);
@@ -49,7 +46,7 @@ void test_readImagesReturnsCorrectNumberOfImages(void)
     GrayScaleImageSeries *series = NULL;
     const unsigned short expectedNumberOfImages = 2;
     const char *path = "testFile.info2";
-    prepareImageFile(path, 8, 8, expectedNumberOfImages, 1, 0);
+    prepareImageFile(path, 8, 8, expectedNumberOfImages, 1);
     series = readImages(path);
     TEST_ASSERT_NOT_NULL(series);
     TEST_ASSERT_EQUAL_UINT16(expectedNumberOfImages, series->count);
@@ -62,7 +59,7 @@ void test_readImagesReturnsCorrectImageWidth(void)
     GrayScaleImageSeries *series = NULL;
     const unsigned short expectedWidth = 10;
     const char *path = "testFile.info2";
-    prepareImageFile(path, expectedWidth, 8,  2, 1, 0);
+    prepareImageFile(path, expectedWidth, 8,  2, 1);
     series = readImages(path);
     TEST_ASSERT_NOT_NULL(series);
     TEST_ASSERT_NOT_NULL(series->images);
@@ -78,7 +75,7 @@ void test_readImagesReturnsCorrectImageHeight(void)
     GrayScaleImageSeries *series = NULL;
     const unsigned short expectedHeight = 10;
     const char *path = "testFile.info2";
-    prepareImageFile(path, 8,  expectedHeight, 2, 1, 0);
+    prepareImageFile(path, 8,  expectedHeight, 2, 1);
     series = readImages(path);
     TEST_ASSERT_NOT_NULL(series);
     TEST_ASSERT_NOT_NULL(series->images);
@@ -95,7 +92,7 @@ void test_readImagesReturnsCorrectLabels(void)
 
     GrayScaleImageSeries *series = NULL;
     const char *path = "testFile.info2";
-    prepareImageFile(path, 8, 8, 2, expectedLabel, 0);
+    prepareImageFile(path, 8, 8, 2, expectedLabel);
     series = readImages(path);
     TEST_ASSERT_NOT_NULL(series);
     TEST_ASSERT_NOT_NULL(series->labels);
@@ -132,7 +129,7 @@ void test_readImagesReadsCorrectGrayScales(void)
     GrayScaleImageSeries *series = NULL;
     const char *path = "testFile.info2";
     
-    prepareImageFile(path, 8, 8, 1, 1, 1);
+    prepareImageFile(path, 8, 8, 1, 1);
     series = readImages(path);
 
     TEST_ASSERT_NOT_NULL(series);