tests: show a use of %define lr.default-reductions "consistent"

* tests/conflicts.at (%nonassoc and eof): Extend to test that it
prevents the omission of expected tokens for %error-verbose.
(cherry picked from commit d1cc31c5f04b81a3620fa291020ce23490f3f9e7)

diff --git a/ChangeLog b/ChangeLog
index 87191e2..80f58f2 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2009-08-26  Joel E. Denny  <jdenny@clemson.edu>
+
+       tests: show a use of %define lr.default-reductions "consistent"
+       * tests/conflicts.at (%nonassoc and eof): Extend to test that it
+       prevents the omission of expected tokens for %error-verbose.
+
 2009-08-26  Akim Demaille  <demaille@gostai.com>
 
        tests: portability fix.

diff --git a/tests/conflicts.at b/tests/conflicts.at
index bcc13bb..6fefea0 100644 (file)
--- a/tests/conflicts.at
+++ b/tests/conflicts.at
@@ -112,6 +112,29 @@ AT_PARSER_CHECK([./input '0<0>0'], [1], [],
          [syntax error, unexpected '>'
 ])
 
+# We must disable default reductions in inconsistent states in order to
+# have an explicit list of all expected tokens.  (However, unless we use
+# canonical LR, lookahead sets are merged for different left contexts,
+# so it is still possible to have extra incorrect tokens in the expected
+# list.  That just doesn't happen to be a problem for this test case.)
+
+AT_BISON_CHECK([-Dlr.default-reductions=consistent -o input.c input.y])
+AT_COMPILE([input])
+
+AT_PARSER_CHECK([./input '0<0'])
+AT_PARSER_CHECK([./input '0<0<0'], [1], [],
+         [syntax error, unexpected '<', expecting $end
+])
+
+AT_PARSER_CHECK([./input '0>0'])
+AT_PARSER_CHECK([./input '0>0>0'], [1], [],
+         [syntax error, unexpected '>', expecting $end
+])
+
+AT_PARSER_CHECK([./input '0<0>0'], [1], [],
+         [syntax error, unexpected '>', expecting $end
+])
+
 AT_CLEANUP