The test check() function now removes the expected and actual output files if they...

[mmh] / test / common.sh.in

diff --git a/test/common.sh.in b/test/common.sh.in
index 7596a48..2308d70 100644 (file)
--- a/test/common.sh.in
+++ b/test/common.sh.in
@@ -76,6 +76,39 @@ progress_done ()
   printf "100%%\n"
 }
 
+#### check() requires two arguments, each the name of a file to be
+#### diff'ed.
+#### If the same, the second file is removed.  And the first file is
+####   removed unless the optional third argument has a value of
+####   'keep first'.
+#### If different, global variable "failed" is incremented.
+check() {
+    #### POSIX diff should support -c.
+    if diff -c "$1" "$2"; then
+      test $# -lt 3 -o "$3" != 'keep first'  &&  rm -f "$1"
+      rm -f "$2"
+    else
+      echo "$0: test failed, outputs are in $1 and $2."
+      failed=`expr ${failed:-0} + 1`
+    fi
+}
+
+#### check_string() requires two arguments, the first is a program and
+#### arguments, the second is its expected one-line output string.  If
+#### the actual output does not match that string, an error message is
+#### printed and global variable "failed" is incremented.
+check_string() {
+  #### Invert exit status to prevent triggering immediate exit due to set -e.
+  ! actual_output=`$1 2>&1`
+  if test "$actual_output" != "$2"; then
+    echo "$0: \"$1\" should have produced:" 1>&2
+    echo "    $2" 1>&2
+    echo "but instead produced:" 1>&2
+    echo "    $actual_output" 1>&2
+    failed=`expr ${failed:-0} + 1`
+  fi
+}
+
 setup_test ()
 {
   export MH=${MH_TEST_DIR}/Mail/.mh_profile