def test_cpp_casting(): assert m.cpp_copy(m.fixed_r()) == 22. assert m.cpp_copy(m.fixed_c()) == 22. z = np.array([[5., 6], [7, 8]]) assert m.cpp_copy(z) == 7. assert m.cpp_copy(m.get_cm_ref()) == 21. assert m.cpp_copy(m.get_rm_ref()) == 21. assert m.cpp_ref_c(m.get_cm_ref()) == 21. assert m.cpp_ref_r(m.get_rm_ref()) == 21. with pytest.raises(RuntimeError) as excinfo: # Can't reference m.fixed_c: it contains floats, m.cpp_ref_any wants doubles m.cpp_ref_any(m.fixed_c()) assert 'Unable to cast Python instance' in str(excinfo.value) with pytest.raises(RuntimeError) as excinfo: # Can't reference m.fixed_r: it contains floats, m.cpp_ref_any wants doubles m.cpp_ref_any(m.fixed_r()) assert 'Unable to cast Python instance' in str(excinfo.value) assert m.cpp_ref_any(m.ReturnTester.create()) == 1. assert m.cpp_ref_any(m.get_cm_ref()) == 21. assert m.cpp_ref_any(m.get_cm_ref()) == 21.