diff --git a/highlighters/main/test-data/double-quoted.zsh b/highlighters/main/test-data/double-quoted.zsh
index b200af0..936efa3 100644
--- a/highlighters/main/test-data/double-quoted.zsh
+++ b/highlighters/main/test-data/double-quoted.zsh
@@ -28,10 +28,19 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
-BUFFER=': "foo$bar"'
+BUFFER=': "foo$bar:\`:\":\$:'
+BUFFER+=\\\':\"
 
 expected_region_highlight=(
   "3 6 $ZSH_HIGHLIGHT_STYLES[double-quoted-argument]" # "foo
   "7 10 $ZSH_HIGHLIGHT_STYLES[dollar-double-quoted-argument]" # $bar
-  "11 11 $ZSH_HIGHLIGHT_STYLES[double-quoted-argument]" # "
+  "11 11 $ZSH_HIGHLIGHT_STYLES[double-quoted-argument]" # :
+  "12 13 $ZSH_HIGHLIGHT_STYLES[back-double-quoted-argument]" # \`
+  "14 14 $ZSH_HIGHLIGHT_STYLES[double-quoted-argument]" # :
+  "15 16 $ZSH_HIGHLIGHT_STYLES[back-double-quoted-argument]" # \$
+  "17 17 $ZSH_HIGHLIGHT_STYLES[double-quoted-argument]" # :
+  "18 19 $ZSH_HIGHLIGHT_STYLES[back-double-quoted-argument]" # \"
+  "20 20 $ZSH_HIGHLIGHT_STYLES[double-quoted-argument]" # :
+  "21 22 $ZSH_HIGHLIGHT_STYLES[back-double-quoted-argument]" # \'
+  "23 24 $ZSH_HIGHLIGHT_STYLES[double-quoted-argument]" # :"
 )