Merge pull request #764 from scipopt/mt/add_getconshdlrname

Mt/add getconshdlrname

Author: mmghannam

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## Unreleased
 ### Added
+- Add getConshdlrName to class Constraint
 ### Fixed
 ### Changed
 ### Removed

src/pyscipopt/scip.pxi

@@ -941,6 +941,11 @@ cdef class Constraint:
         constype = bytes(SCIPconshdlrGetName(SCIPconsGetHdlr(self.scip_cons))).decode('UTF-8')
         return constype == 'nonlinear'
 
+    def getConshdlrName(self):
+        """Return the constraint handler's name"""
+        constype = bytes(SCIPconshdlrGetName(SCIPconsGetHdlr(self.scip_cons))).decode('UTF-8')
+        return constype
+
     def __hash__(self):
         return hash(<size_t>self.scip_cons)
 
@@ -5142,4 +5147,4 @@ def is_memory_freed():
     return BMSgetMemoryUsed() == 0
 
 def print_memory_in_use():
-    BMScheckEmptyMemory()
+    BMScheckEmptyMemory()

tests/test_cons.py

@@ -96,6 +96,8 @@ def test_SOScons():
     assert m.isEQ(m.getVal(x[3]), 1)
     assert m.isEQ(m.getVal(x[4]), 1)
     assert m.isEQ(m.getVal(x[5]), 1)
+    assert c1.getConshdlrName() == "SOS1"
+    assert c2.getConshdlrName() == "SOS2"
 
 
 def test_cons_indicator():
@@ -112,6 +114,7 @@ def test_cons_indicator():
     assert m.isEQ(m.getVal(slack), 0)
     assert m.isEQ(m.getVal(binvar), 1)
     assert m.isEQ(m.getVal(x), 1)
+    assert c.getConshdlrName() == "indicator"
 
 
 @pytest.mark.xfail(reason="addConsIndicator doesn't behave as expected when binary variable is False. See Issue #717.")