Merge pull request #3850 from jsiirola/gurobiasl-test

Update solver tests for gurobiasl 13.0.0

Author: jsiirola

pyomo/contrib/solver/tests/solvers/test_solvers.py

@@ -1414,14 +1414,16 @@ def test_fixed_vars_4(
                 opt.config.writer_config.linear_presolve = False
         m = pyo.ConcreteModel()
         m.x = pyo.Var()
-        m.y = pyo.Var()
+        m.y = pyo.Var(bounds=(-1.4, None))
         m.obj = pyo.Objective(expr=m.x**2 + m.y**2)
         m.c1 = pyo.Constraint(expr=m.x == 2 / m.y)
         m.y.fix(1)
         res = opt.solve(m)
         self.assertAlmostEqual(m.x.value, 2)
         m.y.unfix()
         res = opt.solve(m)
+        # The global minimum is +/-(2**.5, 2**.5) without bounds.
+        # Bounds force it to the positive side
         self.assertAlmostEqual(m.x.value, 2**0.5, delta=1e-3)
         self.assertAlmostEqual(m.y.value, 2**0.5, delta=1e-3)
 

pyomo/solvers/tests/testcases.py

@@ -106,24 +106,24 @@
 
 # 12.0.3 (for AMPL only) returns all zeros for suffixes
 MissingSuffixFailures['gurobi', 'nl', 'LP_duals_maximize'] = (
-    lambda v: v[:3] == (12, 0, 3),
+    lambda v: v[:3] >= (12, 0, 3),
     {'dual': (False, {})},
-    "AMPL Gurobi 12.0.3 fails to report duals for problems solved in presolve",
+    "AMPL Gurobi>=12.0.3 fails to report duals for problems solved in presolve",
 )
 MissingSuffixFailures['gurobi', 'nl', 'LP_duals_minimize'] = (
-    lambda v: v[:3] == (12, 0, 3),
+    lambda v: v[:3] >= (12, 0, 3),
     {'dual': (False, {})},
-    "AMPL Gurobi 12.0.3 fails to report duals for problems solved in presolve",
+    "AMPL Gurobi>=12.0.3 fails to report duals for problems solved in presolve",
 )
 MissingSuffixFailures['gurobi', 'nl', 'LP_inactive_index'] = (
-    lambda v: v[:3] == (12, 0, 3),
+    lambda v: v[:3] >= (12, 0, 3),
     {'dual': (False, {})},
-    "AMPL Gurobi 12.0.3 fails to report duals for problems solved in presolve",
+    "AMPL Gurobi>=12.0.3 fails to report duals for problems solved in presolve",
 )
 MissingSuffixFailures['gurobi', 'nl', 'QP_simple'] = (
-    lambda v: v[:3] == (12, 0, 3),
+    lambda v: v[:3] >= (12, 0, 3),
     {'dual': (False, {})},
-    "AMPL Gurobi 12.0.3 fails to report duals for problems solved in presolve",
+    "AMPL Gurobi>=12.0.3 fails to report duals for problems solved in presolve",
 )
 
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