X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/6fc2909634fb431c65ecfa8b6db4f6519f99b389..c6f2d14d9c38345075629af3487c2de491584ca1:/test/common.sh.in

diff --git a/test/common.sh.in b/test/common.sh.in
index 47df61eb..4734612c 100644
--- a/test/common.sh.in
+++ b/test/common.sh.in
@@ -110,10 +110,15 @@ require_prog ()
 }
 
 # Skip test if none of the offered locales are supported.
+# As side effect, use the first locale that is found.  Note that
+# some platforms allow, by way of example, en_US.UTF-8 to be used
+# even though en_US.UTF8 is listed by locale -a.  But by setting
+# LC_ALL here, we don't rely on that.
 require_locale ()
 {
   for locale in "$@"; do
     if locale -a | grep -i "$locale" >/dev/null; then
+        LC_ALL="$locale"; export LC_ALL
         return
     fi
   done
@@ -193,6 +198,8 @@ prepare_space() {
 ####   'ignore space' -- spacing differences will not be considered
 ####        significant, emulating GNU diff -w.  It is assumed that the
 ####        first file has already been run through prepare_space.
+####   'expectfail' -- The test is expected to fail, e.g. due to a code
+####        bug, but the test should run as a placeholder for the fix.
 ####   ':' <test name> -- will print '<test name>' in the failure message,
 ####        to make it easier to tell which of multiple tests has failed.
 check() {
@@ -200,11 +207,13 @@ check() {
     second=$1; shift
     keepfirst=
     ignorespace=
+    expectfail=false
     label=test
     while [ $# -gt 0 ]; do
         case $1 in
             'keep first')   keepfirst=1 ;;
             'ignore space') ignorespace=1 ;;
+            expectfail) expectfail=true;;
 	    ':') shift; label=\'"$*"\'; break ;;
             *) echo "$0: invalid check() argument \"$1\" in test suite" >&2 ;;
         esac
@@ -222,15 +231,25 @@ check() {
     if [ "$success" ]; then
         [ "$keepfirst" ]  ||  rm -f "$first"
         rm -f "$second"
+        if $expectfail; then
+            echo "$0: expected test to fail, but it passed"
+            failed=`expr ${failed:-0} + 1`
+            #### Set return status of the function.
+            [ $failed -eq 0 ]
+        fi
     else
         echo
         #### POSIX diff should support -c.
         diff -c "$first" "$second" || true
         echo
         echo "$0: $label failed, outputs are in $first and $second."
-        failed=`expr ${failed:-0} + 1`
-        #### Set return status of the function.
-        [ $failed -eq 0 ]
+        if $expectfail; then
+            echo "$0: $label expected to fail, ignoring"
+        else
+            failed=`expr ${failed:-0} + 1`
+            #### Set return status of the function.
+            [ $failed -eq 0 ]
+        fi
     fi
 }