X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/82c53be476163f328c99f04e85462d7494631a24..603f1cfdc56691b331b6ef337a8c3633e7a125b3:/tests/calc.at

diff --git a/tests/calc.at b/tests/calc.at
index 377b9d19..26dcf860 100644
--- a/tests/calc.at
+++ b/tests/calc.at
@@ -431,14 +431,17 @@ AT_CHECK([cat stderr], 0, [expout])
 ])
 
 
-# AT_CHECK_CALC([BISON-OPTIONS])
+# AT_CHECK_CALC([BISON-OPTIONS [, EXPECTED-TO-FAIL]])
 # ------------------------------
 # Start a testing chunk which compiles `calc' grammar with
 # BISON-OPTIONS, and performs several tests over the parser.
+# However, if EXPECTED-TO-FAIL is nonempty, this test is expected to fail.
 m4_define([AT_CHECK_CALC],
 [# We use integers to avoid dependencies upon the precision of doubles.
 AT_SETUP([Calculator $1])
 
+m4_ifval([$2], [AT_CHECK([exit 77])])
+
 AT_BISON_OPTION_PUSHDEFS([$1])
 
 AT_DATA_CALC_Y([$1])