Add make_some_type() to test_wip (reproduces Segmentation fault in test_class).

tests/test_wip.cpp

@@ -16,4 +16,6 @@ TEST_SUBMODULE(wip, m) {
     py::class_<SomeType>(m, "SomeType").def(py::init([]() {
         return std::unique_ptr<SomeType>(new SomeType);
     }));
+
+    m.def("make_some_type", []() { return std::unique_ptr<SomeType>(new SomeType); });
 }

tests/test_wip.py

@@ -10,3 +10,8 @@ def test_doc():
 def test_some_type_ctor():
     obj = m.SomeType()
     assert isinstance(obj, m.SomeType)
+
+
+def test_make_some_type():
+    obj = m.make_some_type()
+    assert isinstance(obj, m.SomeType)