Break out some common test code to a separate file.

Next step to refactor remaining tests.

tests/simple-test.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+if [ -z "$srcdir" ]; then
+    srcdir=`dirname $0`
+fi
+
+TEST_RESULT=$srcdir/$1
+shift
+
+../examples/"$@" 2>&1 | tee tmp.out
+
+if cmp -s tmp.out $TEST_RESULT.out; then
+    echo "OK"
+    exit 0
+else
+    echo "FAIL"
+    diff tmp.out $TEST_RESULT.out
+    exit 1
+fi

tests/test1.sh

@@ -1,11 +1,3 @@
 #!/bin/sh
 
-# success
-../examples/test1 -r -n mike > tmp.out 2>&1
-
-if cmp -s tmp.out $srcdir/test1.out; then
-	exit 0
-else
-	exit 1
-fi
-
+./simple-test.sh test1 `basename $0 .sh` -r -n mike