Adding missing bytes to test_constructors().

Author: rwgk

include/pybind11/pytypes.h

@@ -802,7 +802,9 @@ PYBIND11_NAMESPACE_END(detail)
     PYBIND11_OBJECT_COMMON(Name, Parent, CheckFun) \
     /* This is deliberately not 'explicit' to allow implicit conversion from object: */ \
     Name(const object &o) : Parent(o) { } \
-    Name(object &&o) : Parent(std::move(o)) { }
+    Name(object &&o) : Parent(std::move(o)) { } \
+    template <typename Policy_> \
+    Name(const ::pybind11::detail::accessor<Policy_> &a) : Name(object(a)) { }
 
 #define PYBIND11_OBJECT_DEFAULT(Name, Parent, CheckFun) \
     PYBIND11_OBJECT(Name, Parent, CheckFun) \

tests/test_pytypes.cpp

@@ -197,6 +197,7 @@ TEST_SUBMODULE(pytypes, m) {
     // test_constructors
     m.def("default_constructors", []() {
         return py::dict(
+            "bytes"_a=py::bytes(),
             "str"_a=py::str(),
             "bool"_a=py::bool_(),
             "int"_a=py::int_(),
@@ -210,6 +211,7 @@ TEST_SUBMODULE(pytypes, m) {
 
     m.def("converting_constructors", [](py::dict d) {
         return py::dict(
+            "bytes"_a=py::bytes(d["bytes"]),
             "str"_a=py::str(d["str"]),
             "bool"_a=py::bool_(d["bool"]),
             "int"_a=py::int_(d["int"]),
@@ -225,6 +227,7 @@ TEST_SUBMODULE(pytypes, m) {
     m.def("cast_functions", [](py::dict d) {
         // When converting between Python types, obj.cast<T>() should be the same as T(obj)
         return py::dict(
+            "bytes"_a=d["bytes"].cast<py::bytes>(),
             "str"_a=d["str"].cast<py::str>(),
             "bool"_a=d["bool"].cast<py::bool_>(),
             "int"_a=d["int"].cast<py::int_>(),

tests/test_pytypes.py

@@ -188,23 +188,27 @@ def func(self, x, *args):
 
 def test_constructors():
     """C++ default and converting constructors are equivalent to type calls in Python"""
-    types = [str, bool, int, float, tuple, list, dict, set]
+    types = [bytes, str, bool, int, float, tuple, list, dict, set]
     expected = {t.__name__: t() for t in types}
+    if str is bytes:  # Python 2.
+        expected["bytes"] = bytes()  # Note that bytes.__name__ == 'str' in Python 2.
+        expected["str"] = u""  # pybind11::str uses the Python 3 naming. Using u"" because flake8 complains about unicode().
     assert m.default_constructors() == expected
 
     data = {
-        str: 42,
-        bool: "Not empty",
-        int: "42",
-        float: "+1e3",
-        tuple: range(3),
-        list: range(3),
-        dict: [("two", 2), ("one", 1), ("three", 3)],
-        set: [4, 4, 5, 6, 6, 6],
-        memoryview: b'abc'
+        "bytes": b'41',  # Currently no supported or working conversions.
+        "str": 42,
+        "bool": "Not empty",
+        "int": "42",
+        "float": "+1e3",
+        "tuple": range(3),
+        "list": range(3),
+        "dict": [("two", 2), ("one", 1), ("three", 3)],
+        "set": [4, 4, 5, 6, 6, 6],
+        "memoryview": b'abc'
     }
-    inputs = {k.__name__: v for k, v in data.items()}
-    expected = {k.__name__: k(v) for k, v in data.items()}
+    inputs = {k: v for k, v in data.items()}
+    expected = {k: eval(k)(v) for k, v in data.items()}
 
     assert m.converting_constructors(inputs) == expected
     assert m.cast_functions(inputs) == expected