Add tests for addConss

Compares the result of adding constraints through the new `addConss`
versus the default `addCons`.

Author: steffanschlein

tests/test_model.py

@@ -79,6 +79,89 @@ def test_model():
     assert s.getStatus() == 'unbounded'
 
 
+def test_multiple_cons_simple():
+    def assert_conss_eq(a, b):
+        assert a.name == b.name
+        assert a.isInitial() == b.isInitial()
+        assert a.isSeparated() == b.isSeparated()
+        assert a.isEnforced() == b.isEnforced()
+        assert a.isChecked() == b.isChecked()
+        assert a.isPropagated() == b.isPropagated()
+        assert a.isLocal() == b.isLocal()
+        assert a.isModifiable() == b.isModifiable()
+        assert a.isDynamic() == b.isDynamic()
+        assert a.isRemovable() == b.isRemovable()
+        assert a.isStickingAtNode() == b.isStickingAtNode()
+
+    s = Model()
+    s_x = s.addVar("x", vtype = 'C', obj = 1.0)
+    s_y = s.addVar("y", vtype = 'C', obj = 2.0)
+    s_cons = s.addCons(s_x + 2 * s_y <= 1.0)
+
+    m = Model()
+    m_x = m.addVar("x", vtype = 'C', obj = 1.0)
+    m_y = m.addVar("y", vtype = 'C', obj = 2.0)
+    m_conss = m.addConss([m_x + 2 * m_y <= 1.0])
+
+    assert len(m_conss) == 1
+    assert_conss_eq(s_cons, m_conss[0])
+
+    s.freeProb()
+    m.freeProb()
+
+
+def test_multiple_cons_names():
+    m = Model()
+    x = m.addVar("x", vtype = 'C', obj = 1.0)
+    y = m.addVar("y", vtype = 'C', obj = 2.0)
+
+    names = list("abcdef")
+    conss = m.addConss([x + 2 * y <= 1 for i in range(len(names))], names)
+
+    assert len(conss) == len(names)
+    assert all([c.name == n for c, n in zip(conss, names)])
+
+    m.freeProb()
+
+    m = Model()
+    x = m.addVar("x", vtype = 'C', obj = 1.0)
+    y = m.addVar("y", vtype = 'C', obj = 2.0)
+
+    name = "abcdef"
+    conss = m.addConss([x + 2 * y <= 1 for i in range(5)], name)
+
+    assert len(conss) == 5
+    assert all([c.name.startswith(name + "_") for c in conss])
+
+
+def test_multiple_cons_params():
+    """Test if setting the remaining parameters works as expected"""
+    def assert_conss_neq(a, b):
+        assert a.isInitial() != b.isInitial()
+        assert a.isSeparated() != b.isSeparated()
+        assert a.isEnforced() != b.isEnforced()
+        assert a.isChecked() != b.isChecked()
+        assert a.isPropagated() != b.isPropagated()
+        assert a.isModifiable() != b.isModifiable()
+        assert a.isDynamic() != b.isDynamic()
+        assert a.isRemovable() != b.isRemovable()
+        assert a.isStickingAtNode() != b.isStickingAtNode()
+
+    kwargs = dict(initial=True, separate=True,
+                  enforce=True, check=True, propagate=True, local=False,
+                  modifiable=False, dynamic=False, removable=False,
+                  stickingatnode=False)
+
+    m = Model()
+    x = m.addVar("x", vtype = 'C', obj = 1.0)
+    y = m.addVar("y", vtype = 'C', obj = 2.0)
+
+    conss = m.addConss([x + 2 * y <= 1], **kwargs)
+    conss += m.addConss([x + 2 * y <= 1], **{k: not v for k, v in kwargs.items()})
+
+    assert_conss_neq(conss[0], conss[1])
+
+
 def test_model_ptr():
     model1 = Model()
     ptr1 = model1.to_ptr(give_ownership=True)