diff --git a/test/unit_tests/image_stitcher_test.py b/test/unit_tests/image_stitcher_test.py
index 2e70c84..3fc862e 100644
--- a/test/unit_tests/image_stitcher_test.py
+++ b/test/unit_tests/image_stitcher_test.py
@@ -1,3 +1,5 @@
+from itertools import starmap
+
 import fpdf
 import pytest
 from funcy import merge
@@ -8,27 +10,29 @@ from test.conftest import get_base_position_metadata, add_image, random_single_c
 from test.utils.stitching import BoxSplitter
 
 
-def test_image_stitcher(partial_image_metadata_pairs):
-    pass
-
-
 @pytest.mark.parametrize("width", [160])
 @pytest.mark.parametrize("height", [90])
 @pytest.mark.parametrize("page_width", [int(160 * 1.1)])
 @pytest.mark.parametrize("page_height", [int(90 * 1.1)])
-def test_partial_image_metadata_pairs(patches_metadata, page_width, page_height):
+def test_partial_image_metadata_pairs(patch_image_metadata_pairs, page_width, page_height):
+
     pdf = fpdf.FPDF(unit="pt", format=(page_width, page_height))
 
-    for patch in patches_metadata:
-        image = random_single_color_image_from_metadata(patch)
-        add_image(pdf, ImageMetadataPair(image, patch))
+    for pair in patch_image_metadata_pairs:
+        add_image(pdf, pair)
 
     pdf.output("/tmp/bla.pdf")
 
 
-@pytest.fixture()
+@pytest.fixture
+def patch_image_metadata_pairs(patches_metadata):
+    images = map(random_single_color_image_from_metadata, patches_metadata)
+    return starmap(ImageMetadataPair, zip(images, patches_metadata))
+
+
+@pytest.fixture
 def patches_metadata(width, height, page_width, page_height):
-    box = get_base_position_metadata(width, height, page_width, page_height)
-    box = merge(box, {Info.X1: 0, Info.Y1: 0, Info.X2: width, Info.Y2: height})
-    boxes = BoxSplitter().split_box(box)
-    return boxes
+    metadata = get_base_position_metadata(width, height, page_width, page_height)
+    metadata = merge(metadata, {Info.X1: 0, Info.Y1: 0, Info.X2: width, Info.Y2: height})
+    patches_metadata = BoxSplitter().split_box(metadata)
+    return patches_metadata