[tests] Add --reference, for re-recording tests

diff --git a/test/shaping/run-tests.sh b/test/shaping/run-tests.sh
index 1e2e34d..668bb8c 100755 (executable)
--- a/test/shaping/run-tests.sh
+++ b/test/shaping/run-tests.sh
@@ -8,21 +8,31 @@ hb_shape=$top_builddir/util/hb-shape$EXEEXT
 
 fails=0
 
+reference=false
+if test "x$1" = x--reference; then
+       reference=true
+       shift
+fi
+
 if test $# = 0; then
        set /dev/stdin
 fi
 
 IFS=:
 for f in "$@"; do
-       echo "Running tests in $f"
+       $reference || echo "Running tests in $f"
        while read fontfile options unicodes glyphs_expected; do
-               echo "Testing $fontfile:$unicodes"
+               $reference || echo "Testing $fontfile:$unicodes"
                glyphs=`$srcdir/hb-unicode-encode "$unicodes" | $hb_shape $options "$srcdir/$fontfile"`
                if test $? != 0; then
                        echo "hb-shape failed." >&2
                        fails=$((fails+1))
                        continue
                fi
+               if $reference; then
+                       echo "$fontfile:$options:$unicodes:$glyphs"
+                       continue
+               fi
                if ! test "x$glyphs" = "x$glyphs_expected"; then
                        echo "Actual:   $glyphs" >&2
                        echo "Expected: $glyphs_expected" >&2
@@ -32,8 +42,8 @@ for f in "$@"; do
 done
 
 if test $fails != 0; then
-       echo "$fails tests failed."
+       $reference || echo "$fails tests failed."
        exit 1
 else
-       echo "All tests passed."
+       $reference || echo "All tests passed."
 fi