Disable unix socket test if none found on filesystem

Author: Damien Nadé

unittest

@@ -265,7 +265,6 @@ declare -A types=(
 	[file]="$file ${types[link]}"
 	[directory]=". .. $dir $dir/linkdir"
 	[pipe]="$fifo"
-	[socket]=/dev/log
 	[char]="c . 0 @"
 	[unsignedint]=123
 	[int]="1 123 0 -1 -938945349"
@@ -279,21 +278,27 @@ declare -A types=(
 	[portnumber]=1234
 )
 
+for socket in /dev/log
+do
+	[[ -S $socket ]] || continue
+	types[socket]=$socket
+done
+
 # Look for a terminal
 for stdfd in 0 1 2
 do
-	if [[ -t $stdfd ]] 
+	[[ -t $stdfd ]] || continue
+	types[terminal]=$stdfd
+done
+
+for t in terminal socket
+do
+	if [[ ${types[$t]-unset} = unset ]]
 	then
-		types[terminal]=$stdfd
-		break
+		printf "No %s found: won't test.\n" "$t"
 	fi
 done
 
-if [[ ${types[terminal]-unset} = unset ]]
-then
-	printf "No terminal found: won't test.\n"
-fi
-
 # Test hostnames only if we can actually resolv.
 if host localhost >/dev/null 2>&1
 then