diff --git a/test/unit_tests/coordinate_transformer_test.py b/test/unit_tests/coordinate_transformer_test.py
index 7e090c3..1d4cfd2 100644
--- a/test/unit_tests/coordinate_transformer_test.py
+++ b/test/unit_tests/coordinate_transformer_test.py
@@ -12,6 +12,11 @@ from image_prediction.transformer.transformers.coordinate.fpdf import FPDFCoordi
 from image_prediction.transformer.transformers.coordinate.pdfnet import PDFNetCoordinateTransformer
 from test.conftest import array_to_image, add_image
 
+WIDTH = 200
+HEIGHT = 100
+PAGE_WIDTH = 300
+PAGE_HEIGHT = 300
+
 
 @pytest.mark.parametrize("coordinate_system", ["fpdf"])
 def test_fpdf_coordinate_transformer(position_metadata_in_given_system, position_metadata_in_reference_system):
@@ -129,10 +134,10 @@ def get_fpdf_corner_metadat():
       +--(1,3)  +--(3,3)
     """
     return {
-        "top_left": get_metadata_for_coords(0, 0, 100, 100),
-        "bottom_left": get_metadata_for_coords(0, 200, 100, 300),
-        "bottom_right": get_metadata_for_coords(200, 200, 300, 300),
-        "top_right": get_metadata_for_coords(200, 0, 300, 100)
+        "top_left": get_metadata_for_coords(0, 0, WIDTH, HEIGHT),
+        "bottom_left": get_metadata_for_coords(0, PAGE_HEIGHT - HEIGHT, WIDTH, PAGE_HEIGHT),
+        "bottom_right": get_metadata_for_coords(PAGE_WIDTH - WIDTH, PAGE_HEIGHT - HEIGHT, PAGE_WIDTH, PAGE_HEIGHT),
+        "top_right": get_metadata_for_coords(PAGE_WIDTH - WIDTH, 0, PAGE_WIDTH, HEIGHT)
     }
 
 
@@ -151,10 +156,10 @@ def get_pdfnet_corner_metadata():
     (0,0)--+  (2,0)--+
     """
     return {
-        "top_left": get_metadata_for_coords(0, 200, 100, 300),
-        "bottom_left": get_metadata_for_coords(0, 0, 100, 100),
-        "bottom_right": get_metadata_for_coords(200, 0, 300, 100),
-        "top_right": get_metadata_for_coords(200, 200, 300, 300),
+        "top_left": get_metadata_for_coords(0, PAGE_HEIGHT - HEIGHT, WIDTH, PAGE_HEIGHT),
+        "bottom_left": get_metadata_for_coords(0, 0, WIDTH, HEIGHT),
+        "bottom_right": get_metadata_for_coords(PAGE_WIDTH - WIDTH, 0, PAGE_WIDTH, HEIGHT),
+        "top_right": get_metadata_for_coords(PAGE_WIDTH - WIDTH, PAGE_HEIGHT - HEIGHT, PAGE_WIDTH, PAGE_HEIGHT),
     }
 
 
@@ -164,17 +169,17 @@ def get_metadata_for_coords(x1, y1, x2, y2):
     return metadata
 
 
-def base_position_metadata(width=100, height=100):
+def base_position_metadata():
     return {
         Info.X1: 0,
         Info.Y1: 0,
-        Info.X2: width,
-        Info.Y2: height,
-        Info.WIDTH: width,
-        Info.HEIGHT: height,
+        Info.X2: WIDTH,
+        Info.Y2: HEIGHT,
+        Info.WIDTH: WIDTH,
+        Info.HEIGHT: HEIGHT,
         Info.PAGE_IDX: 0,
-        Info.PAGE_WIDTH: 300,
-        Info.PAGE_HEIGHT: 300,
+        Info.PAGE_WIDTH: PAGE_WIDTH,
+        Info.PAGE_HEIGHT: PAGE_HEIGHT,
     }
 
 
@@ -187,11 +192,11 @@ def metadata_to_test_image(metadata):
 
 
 def get_coordinate_test_image():
-    return array_to_image(np.zeros(shape=(100, 100, 3)))
+    return array_to_image(np.zeros(shape=(WIDTH, HEIGHT, 3)))
 
 
 def get_coordinate_test_fpdf():
-    pdf = fpdf.FPDF(unit="pt", format=(300, 300))
+    pdf = fpdf.FPDF(unit="pt", format=(PAGE_WIDTH, PAGE_HEIGHT))
     return pdf