test(cryptsetup): update the skip condition

Author: akinomyoga

completions/cryptsetup

@@ -13,7 +13,7 @@ _comp_cmd_cryptsetup__device()
 _comp_cmd_cryptsetup__action()
 {
     local ret IFS=$' \t\n'
-    _comp_dequote "$1" || return 1
+    _comp_dequote "${1-}" || return 1
     local cmd=${ret:-cryptsetup}
     local actions=$(
         {
@@ -45,7 +45,7 @@ _comp_cmd_cryptsetup__action()
             filtering_pattern=${filtering_pattern%$'\n'}
 
             local filtered_actions
-            filtered_actions=$(strings "$path" | grep -Fx "$filtering_pattern" | sort -u) &&
+            filtered_actions=$(strings "$path" | command grep -Fx "$filtering_pattern" | sort -u) &&
                 [[ $filtered_actions ]] &&
                 actions=$filtered_actions
         fi

test/t/test_cryptsetup.py

@@ -13,7 +13,7 @@ def test_2(self, completion):
     @pytest.mark.complete(
         "cryptsetup luksE",
         require_cmd=True,
-        skipif='! strings "$(type -P cryptsetup)" | grep -qFx luksErase',
+        skipif=r'! { cryptsetup --help; man cryptsetup; } 2>/dev/null | command grep -qE "(^|[[:space:]])luksErase([[:space:]]|\$)"',
     )
     def test_github_issue758(self, completion):
         assert completion == "rase"