diff --git a/mode/sh.py b/mode/sh.py
index bb4a99e..bf56cb6 100644
--- a/mode/sh.py
+++ b/mode/sh.py
@@ -82,7 +82,7 @@ TestGrammar.rules = [
     PatternRule(r'continuation', r'\\\n$'),
     PatternRule(r'redirect', r'<|>'),
     PatternRule(r'delimiter', r";;|[();{}|&><]"),
-    RegionRule(r'test', r'test', None, r';|\n'),
+    RegionRule(r'test', r'test(?![a-zA-Z0-9_=/])', None, r';|\n'),
     RegionRule(r'test2', r'\[\[', None, r'\]\]'),
     RegionRule(r'test3', r'\[', None, r'\]'),
     RegionRule(r'eval', r'`', EvalGrammar, r'`'),