Multiple inheritance support

tests/test_multiple_inheritance.py

@@ -0,0 +1,65 @@
+import pytest
+
+
+def test_multiple_inheritance_cpp(msg):
+    from pybind11_tests import MIType
+
+    mt = MIType(3, 4)
+
+    assert mt.foo() == 3
+    assert mt.bar() == 4
+
+
+def test_multiple_inheritance_mix1(msg):
+    from pybind11_tests import Base2
+
+    class Base1:
+        def __init__(self, i):
+            self.i = i
+
+        def foo(self):
+            return self.i
+
+    class MITypePy(Base1, Base2):
+        def __init__(self, i, j):
+            Base1.__init__(self, i)
+            Base2.__init__(self, j)
+
+    mt = MITypePy(3, 4)
+
+    assert mt.foo() == 3
+    assert mt.bar() == 4
+
+
+def test_multiple_inheritance_mix2(msg):
+    from pybind11_tests import Base1
+
+    class Base2:
+        def __init__(self, i):
+            self.i = i
+
+        def bar(self):
+            return self.i
+
+    class MITypePy(Base1, Base2):
+        def __init__(self, i, j):
+            Base1.__init__(self, i)
+            Base2.__init__(self, j)
+
+    mt = MITypePy(3, 4)
+
+    assert mt.foo() == 3
+    assert mt.bar() == 4
+
+
+def test_multiple_inheritance_virtbase(msg):
+    from pybind11_tests import Base12a, bar_base2a, bar_base2a_sharedptr
+
+    class MITypePy(Base12a):
+        def __init__(self, i, j):
+            Base12a.__init__(self, i, j)
+
+    mt = MITypePy(3, 4)
+    assert mt.bar() == 4
+    assert bar_base2a(mt) == 4
+    assert bar_base2a_sharedptr(mt) == 4