fix breaking tests with new preset

Author: Joao-Dionisio

tests/test_iis.py

@@ -58,6 +58,8 @@ def test_custom_iis_finder():
 
 def test_iisGreddyMakeIrreducible():
     m = infeasible_model()
+
+    m.setParam("iis/greedy/priority", -1)
     my_iis = myIIS(m, skip=True)
     m.includeIISfinder(my_iis, "", "")
     iis = m.generateIIS()

tests/test_model.py

@@ -558,6 +558,7 @@ def test_getVarPseudocost():
     p = m.getVarPseudocost(var, SCIP_BRANCHDIR.UPWARDS)
     assert m.isEQ(p, 1)
 
+    m.optimize()
     m.updateVarPseudocost(var, 1, 12, 1)
     p = m.getVarPseudocost(var, SCIP_BRANCHDIR.UPWARDS)