[PPL-devel] [GIT] ppl/ppl(master): A couple of tests marked as known to fail.

[Enea Zaffanella]

Module: ppl/ppl
Branch: master
Commit: 8fc67ca6012164360c1c0301f29f46d979157cbe
URL:    http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=8fc67ca6012164360c1c0301f29f46d979157cbe

Author: Enea Zaffanella <zaffanella at cs.unipr.it>
Date:   Sat Feb 20 09:40:15 2010 +0100

A couple of tests marked as known to fail.
These shows a bug in the solver, which fails to detect an unfeasible
initial context.

---

 tests/PIP_Problem/pipproblem1.cc |   18 +++++++++++++++++-
 1 files changed, 17 insertions(+), 1 deletions(-)

diff --git a/tests/PIP_Problem/pipproblem1.cc b/tests/PIP_Problem/pipproblem1.cc
index 29b9d93..ac9fa11 100644
--- a/tests/PIP_Problem/pipproblem1.cc
+++ b/tests/PIP_Problem/pipproblem1.cc
@@ -501,6 +501,20 @@ test16() {
   return ok;
 }
 
+bool
+test17() {
+  PIP_Problem pip;
+  pip.add_space_dimensions_and_embed(0, 1);
+  // Adding unsatisfiable context constraints.
+  Variable n(0);
+  pip.add_constraint(n <= 5);
+  pip.add_constraint(n >= 10);
+  bool ok = (pip.solve() == UNFEASIBLE_PIP_PROBLEM);
+  if (pip.solution() != 0)
+    pip.print_solution(nout);
+  return ok;
+}
+
 } // namespace
 
 BEGIN_MAIN
@@ -519,5 +533,7 @@ BEGIN_MAIN
   DO_TEST(test13);
   DO_TEST(test14);
   DO_TEST(test15);
-  // DO_TEST(test16);
+  // The following two tests show a bug in the PIP solver.
+  DO_TEST_F(test16);
+  DO_TEST_F(test17);
 END_MAIN