diff --git a/tests/helpers/test_nup.py b/tests/helpers/test_nup.py
index f919fe791..0c47aa246 100644
--- a/tests/helpers/test_nup.py
+++ b/tests/helpers/test_nup.py
@@ -20,6 +20,7 @@ def test_pageobj_placement():
     assert xobject.pdf is dest_pdf
     
     pageobj_a = xobject.as_pageobject()
+    assert pageobj_a.get_matrix() == pdfium.PdfMatrix()
     assert isinstance(pageobj_a, pdfium.PdfPageObject)
     assert isinstance(pageobj_a.raw, pdfium.FPDF_PAGEOBJECT)
     assert pageobj_a.pdf is dest_pdf
@@ -27,6 +28,7 @@ def test_pageobj_placement():
     assert pageobj_a.type == pdfium.FPDF_PAGEOBJ_FORM
     matrix_a = pdfium.PdfMatrix(0.5, 0, 0, 0.5, 0, height/2)
     pageobj_a.set_matrix(matrix_a)  # in this case: same effect as transform()
+    assert pageobj_a.get_matrix() == matrix_a
     dest_page.insert_object(pageobj_a)
     assert pageobj_a.pdf is dest_pdf
     assert pageobj_a.page is dest_page
@@ -37,13 +39,15 @@ def test_pageobj_placement():
     dest_page.insert_object(pageobj_b)
     
     pageobj_c = xobject.as_pageobject()
+    assert pageobj_c.get_matrix() == pdfium.PdfMatrix()
     matrix_c = pdfium.PdfMatrix(0.5, 0, 0, -0.5, 0, height/2)
     pageobj_c.transform(matrix_c)  # in this case: same effect as set_matrix()
+    assert pageobj_c.get_matrix() == matrix_c
     dest_page.insert_object(pageobj_c)
     
     pageobj_d = xobject.as_pageobject()
     matrix_d = pdfium.PdfMatrix(-0.5, 0, 0, -0.5, width, height/2)
-    pageobj_d.transform(matrix_d) # in this case: same effect as set_matrix()
+    pageobj_d.transform(matrix_d)  # in this case: same effect as set_matrix()
     dest_page.insert_object(pageobj_d)
     
     dest_page.generate_content()