diff --git a/notebook/tests/selenium/test_dualmode_insertcell.py b/notebook/tests/selenium/test_dualmode_insertcell.py
index 2982bcab2..b22ecbaaa 100644
--- a/notebook/tests/selenium/test_dualmode_insertcell.py
+++ b/notebook/tests/selenium/test_dualmode_insertcell.py
@@ -1,9 +1,9 @@
 
 
 def test_insert_cell(notebook):
-    a = 'print("a")'
-    b = 'print("b")'
-    c = 'print("c")'
+    a = "print('a')"
+    b = "print('b')"
+    c = "print('c')"
 
     notebook.edit_cell(index=0, content=a)
     notebook.append(b, c)
@@ -14,15 +14,18 @@ def test_insert_cell(notebook):
     notebook.to_command_mode()
     notebook.focus_cell(2)
     notebook.convert_cell_type(2, "markdown")
+    
+    # insert code cell above
     notebook.current_cell.send_keys("a")
-    assert notebook.get_cell_contents(2) == ''
-    assert notebook.get_cell_type(2) == 'code'
+    assert notebook.get_cell_contents(2) == ""
+    assert notebook.get_cell_type(2) == "code"
     assert len(notebook.cells) == 4
     
-    notebook.current_cell.send_keys('b')
-    assert notebook.get_cell_contents(2) == ''
-    assert notebook.get_cell_contents(3) == ''
-    assert notebook.get_cell_type(3) == 'code'
+    # insert code cell below
+    notebook.current_cell.send_keys("b")
+    assert notebook.get_cell_contents(2) == ""
+    assert notebook.get_cell_contents(3) == ""
+    assert notebook.get_cell_type(3) == "code"
     assert len(notebook.cells) == 5
 
     notebook.focus_cell(2)
@@ -32,3 +35,19 @@ def test_insert_cell(notebook):
     assert notebook.get_cell_type(3) == "markdown"
     notebook.current_cell.send_keys("b")
     assert notebook.get_cell_type(4) == "markdown"
+
+    notebook.edit_cell(index=1, content="cell1")
+    notebook.focus_cell(1)
+    notebook.current_cell.send_keys("a")
+    assert notebook.get_cell_contents(1) == ""
+    assert notebook.get_cell_contents(2) == "cell1"
+
+    notebook.edit_cell(index=1, content='cell1')
+    notebook.edit_cell(index=2, content='cell2')
+    notebook.edit_cell(index=3, content='cell3')
+    notebook.focus_cell(2)
+    notebook.current_cell.send_keys("b")
+    assert notebook.get_cell_contents(1) == "cell1"
+    assert notebook.get_cell_contents(2) == "cell2"
+    assert notebook.get_cell_contents(3) == ""
+    assert notebook.get_cell_contents(4) == "cell3"