diff --git a/src/ui/bigtext/testline.py b/src/ui/bigtext/testline.py
index d76949b..111c0ee 100644
--- a/src/ui/bigtext/testline.py
+++ b/src/ui/bigtext/testline.py
@@ -31,9 +31,9 @@ class MyTestCase(unittest.TestCase):
         self.assertEqual(9, line.column_to_char(15))  # tab
         self.assertEqual(10, line.column_to_char(16))  # g
 
-    def test_column_to_char_ignore_nonspacing_mark_charaters(self):
+    def test_column_to_char_ignore_nonspacing_mark_characters(self):
         """
-        nonspacing mark charaters are those little decorations that are applied to the previous character,
+        nonspacing mark characters are those little decorations that are applied to the previous character,
         e.g. x\u0308 to make ẍ
         :return:
         """
@@ -63,7 +63,7 @@ class MyTestCase(unittest.TestCase):
 
     def test_char_to_column_ignore_nonspacing_mark_charaters(self):
         """
-        nonspacing mark charaters are those little decorations that are applied to the previous character,
+        nonspacing mark characters are those little decorations that are applied to the previous character,
         e.g. x\u0308 to make ẍ
         :return:
         """
@@ -119,7 +119,7 @@ class MyTestCase(unittest.TestCase):
         for i in range(128):
             if unicodedata.category(chr(i)) == "Cc":
                 # print(i, " -> ", ord(chr(i)), " --> ", chr(9216 + i))
-                if not i in [9, 10, 11, 13]:
+                if i not in [9, 10, 11, 13]:
                     text = text + chr(i)
 
         line = Line(byte_offset=byte_offset, byte_end=byte_offset + len(text.encode("utf8")), line=text)