tests: Add skips for tests that require sudo

highlighters/main/test-data/prefix-redirection.zsh

@@ -27,6 +27,8 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+type sudo >/dev/null || skip_test='sudo must be present'
+
 BUFFER='>/tmp >/tmp sudo echo >/tmp foo'
 
 expected_region_highlight=(

highlighters/main/test-data/sudo-command.zsh

@@ -27,6 +27,8 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+type sudo >/dev/null || skip_test='sudo must be present'
+
 # Tests three codepaths:
 # * -i  (no argument)
 # * -C3 (pasted argument)

highlighters/main/test-data/sudo-comment.zsh

@@ -27,6 +27,8 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+type sudo >/dev/null || skip_test='sudo must be present'
+
 setopt interactive_comments
 BUFFER='sudo -u # comment'
 

highlighters/main/test-data/sudo-redirection.zsh

@@ -27,6 +27,8 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+type sudo >/dev/null || skip_test='sudo must be present'
+
 BUFFER='sudo -u >/tmp otheruser ls; sudo ls; sudo -i ls'
 
 expected_region_highlight=(

highlighters/main/test-data/sudo-redirection2.zsh

@@ -27,6 +27,8 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+type sudo >/dev/null || skip_test='sudo must be present'
+
 BUFFER='sudo >/tmp -u otheruser ls'
 
 expected_region_highlight=(

highlighters/main/test-data/sudo-redirection3.zsh

@@ -27,6 +27,8 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+type sudo >/dev/null || skip_test='sudo must be present'
+
 BUFFER='sudo 2>./. -u otheruser ls'
 
 expected_region_highlight=(