diff --git a/tests/test_parse.py b/tests/test_parse.py
index 9518eea..28e3d06 100644
--- a/tests/test_parse.py
+++ b/tests/test_parse.py
@@ -3,6 +3,8 @@
 
 from src import parse
 
+lexer_whitespace = "\n\t "
+
 # Test with no data at all
 def test_parser_empty():
     tokenizer = parse.Tokenizer("", "")
@@ -44,9 +46,9 @@
 
 
 # Test that we can make string literals using the BeginText and EndText syntax.
-@given(text(), sampled_from("\n\t "), sampled_from("\n\t "))
+@given(text(), sampled_from(lexer_whitespace), sampled_from(lexer_whitespace))
 def test_lexer_text(text, space1, space2):
-    text_tokens = split_by(text, "\n\t ")
+    text_tokens = split_by(text, lexer_whitespace)
     assume("BeginText" not in text_tokens and "EndText" not in text_tokens)
     code = "BeginText" + space1 + text + space2 + "EndText"
     tokenizer = parse.Tokenizer(code, "")
@@ -60,9 +62,9 @@
 
 
 # Test that we can make notes using BeginNote and EndNote syntax.
-@given(text(), sampled_from("\n\t "), sampled_from("\n\t "))
+@given(text(), sampled_from(lexer_whitespace), sampled_from(lexer_whitespace))
 def test_lexer_note(text, space1, space2):
-    text_tokens = split_by(text, "\n\t ")
+    text_tokens = split_by(text, lexer_whitespace)
     assume("BeginNote" not in text_tokens and "EndNote" not in text_tokens)
     code = "BeginNote" + space1 + text + space2 + "EndNote"
     tokenizer = parse.Tokenizer(code, "")
@@ -118,7 +120,7 @@
 reserved_words = keywords + ["StartText", "EndText", "StartNote", "EndNote"]
 
 # Test that we can make symbols
-@given(text(alphabet=characters(blacklist_characters="\n\t "), min_size=1))
+@given(text(alphabet=characters(blacklist_characters=lexer_whitespace), min_size=1))
 def test_lexer_symbols(symbol):
     assume(symbol not in reserved_words)  # Reserved words aren't symbols
     assume(not symbol.startswith("#!"))  # Shebangs aren't symbols