Only create test file "input" when input argument isn't empty.

3 files changed, 3 insertions, 3 deletions

diff --git a/scripts/runtest.sh b/scripts/runtest.sh
index 90d6299b..d1ae4408 100644
--- a/scripts/runtest.sh
+++ b/scripts/runtest.sh
@@ -114,7 +114,7 @@ testing()
   fi
 
   echo -ne "$3" > expected
-  echo -ne "$4" > input
+  [ ! -z "$4" ] && echo -ne "$4" > input || rm -f input
   echo -ne "$5" | ${EVAL:-eval} -- "$2" > actual
   RETVAL=$?
 
diff --git a/tests/cmp.test b/tests/cmp.test
index 0c4355ab..d1a8033b 100755
--- a/tests/cmp.test
+++ b/tests/cmp.test
@@ -35,7 +35,7 @@ testing "-s diff, return code" "cmp -s input input2 2>&1 || echo yes" "yes\n" "a
 testing "-l EOF, stderr" "cmp -l input input2 2>&1" "cmp: EOF on input2\n" "ab\nc\nx" ""
 testing "-l diff and EOF, stdout and stderr" "cmp -l input input2 2>&1 | sort" "4 170 143\ncmp: EOF on input2\n" "ab\nx\nx" ""
 
-testing "-s not exist" "cmp -s input doesnotexist 2>&1 || echo yes" "yes\n" "" ""
+testing "-s not exist" "cmp -s input doesnotexist 2>&1 || echo yes" "yes\n" "x" ""
 
 rm input2
 
diff --git a/tests/grep.test b/tests/grep.test
index 69f8036e..e3753c2c 100755
--- a/tests/grep.test
+++ b/tests/grep.test
@@ -120,7 +120,7 @@ testing "-HnbB1" "grep -HnbB1 f input" \
 testing "-q match overrides error" \
   "grep -q hello missing input 2>/dev/null && echo yes" "yes\n" "hello\n" ""
 testing "-q not found is 1" \
-  'grep -q hello input || echo $?' "1\n" "" ""
+  'grep -q hello input || echo $?' "1\n" "x" ""
 testing "-q missing is 2" \
   'grep -q hello missing missing 2>/dev/null || echo $?' "2\n" "" ""
 testing "-q missing survives exists but not found" \