tests/checks/check-completions: fix for embed-data builds

share/functions/__fish_list_files.fish

@@ -0,0 +1,16 @@
+# localization: skip(private)
+function __fish_list_files
+    set -l dir $argv[1]
+    if set -q __fish_data_dir[1]
+        # Construct a directory prefix without trailing slash.
+        if test -n "$dir"
+            set dir $__fish_data_dir/$dir
+        else
+            set dir $__fish_data_dir
+        end
+        set -l files $dir/**
+        string replace -- $dir/ '' $files
+    else
+        status list-files $dir
+    end
+end

share/functions/__fish_with_file.fish

@@ -0,0 +1,10 @@
+# localization: skip(private)
+function __fish_with_file
+    set -l file $argv[1]
+    set -l cmd $argv[2..]
+    if set -q __fish_data_dir[1]
+        $cmd $__fish_data_dir/$file
+    else
+        status get-file $file | $cmd
+    end
+end

tests/checks/check-completions.fish

@@ -4,9 +4,9 @@
 # Test all completions where the command exists
 
 # No output is good output
-for f in $__fish_data_dir/completions/*.fish
+for f in (__fish_list_files completions | string match 'completions/*.fish')
     if type -q (string replace -r '.*/([^/]+).fish' '$1' $f)
-        set -l out (source $f 2>&1 | string collect)
+        set -l out (__fish_with_file $f source 2>&1 | string collect)
         test -n "$out"
         and echo -- OUTPUT from $f: $out
     end