fix tests

Author: rcannood

src/test/resources/testnextflowvdsl3/src/multiple_output/script.sh

@@ -7,10 +7,8 @@ par_output='output_*.txt'
 
 output_i=0
 
-if [ ! -z "$par_input" ]; then
-  IFS=";"
-  for var in $par_input; do
-    unset IFS
+if [ ${#par_input[@]} -gt 0 ]; then
+  for var in "${par_input[@]}"; do
     output=$(echo "$par_output" | sed "s/\*/$output_i/g")
     cp "$var" "$output"
     output_i=$((output_i+1))

src/test/resources/testnextflowvdsl3/src/step1/script.sh

@@ -2,10 +2,8 @@
 
 [ -f "$par_output" ] && rm "$par_output"
 
-if [ ! -z "$par_input" ]; then
-  IFS=";"
-  for var in $par_input; do
-    unset IFS
+if [ ${#par_input[@]} -gt 0 ]; then
+  for var in "${par_input[@]}"; do
     cat "$var" >> "$par_output"
   done
 fi

src/test/resources/testnextflowvdsl3/src/step3/script.sh

@@ -7,10 +7,8 @@ function clean_up {
 trap clean_up EXIT
 
 
-if [ ! -z "$par_input" ]; then
-  IFS=";"
-  for var in $par_input; do
-    unset IFS
+if [ ${#par_input[@]} -gt 0 ]; then
+  for var in "${par_input[@]}"; do
     cat "$var" >> "$tmpfile"
   done
 fi