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diff --git a/testsuite/testing.sh b/testsuite/testing.sh
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+# Simple test harness infrastructurei for BusyBox
+#
+# Copyright 2005 by Rob Landley
+#
+# License is GPLv2, see LICENSE in the busybox tarball for full license text.
+
+# The "testing" function uses one environment variable:
+#	COMMAND = command to execute
+#
+# The function takes five arguments:
+#	$1) Description to display when running command
+#	$2) Command line arguments to command"
+#	$3) Expected result (on stdout)"
+#	$4) Data written to file "input"
+#	$5) Data written to stdin
+#
+# The exit value of testing is the exit value of the command it ran.
+#
+# The environment variable "FAILCOUNT" contains a cumulative total of the
+# 
+
+# The command line parsing is ugly and should be improved.
+
+if [ "$1" == "-v" ]
+then
+  verbose=1
+fi
+
+export FAILCOUNT=0
+
+# The testing function
+
+function testing()
+{
+  if [ $# -ne 5 ]
+  then
+    echo "Test $1 has the wrong number of arguments" >&2
+    exit
+  fi
+
+  f=$FAILCOUNT
+  echo -ne "$3" > expected
+  echo -ne "$4" > input
+  echo -n -e "$5" | eval "$COMMAND $2" > actual
+  RETVAL=$?
+
+  cmp expected actual > /dev/null
+  if [ $? -ne 0 ]
+  then
+	FAILCOUNT=$[$FAILCOUNT+1]
+	echo FAIL:"$1"
+	if [ $verbose ]
+	then
+		diff -u expected actual
+	fi
+  else
+	echo PASS:"$1"
+  fi
+  rm -f input expected actual
+
+  return $RETVAL
+}