knx/examples/knxPython/pybind11/tests/test_eval.cpp
Thomas Kunze 1c6d772056 astyle
2024-09-14 11:56:47 +02:00

141 lines
3.2 KiB
C++

/*
tests/test_eval.cpp -- Usage of eval() and eval_file()
Copyright (c) 2016 Klemens D. Morgenstern
All rights reserved. Use of this source code is governed by a
BSD-style license that can be found in the LICENSE file.
*/
#include <pybind11/eval.h>
#include "pybind11_tests.h"
#include <utility>
TEST_SUBMODULE(eval_, m)
{
// test_evals
auto global = py::dict(py::module_::import("__main__").attr("__dict__"));
m.def("test_eval_statements", [global]()
{
auto local = py::dict();
local["call_test"] = py::cpp_function([&]() -> int { return 42; });
// Regular string literal
py::exec("message = 'Hello World!'\n"
"x = call_test()",
global,
local);
// Multi-line raw string literal
py::exec(R"(
if x == 42:
print(message)
else:
raise RuntimeError
)",
global,
local);
auto x = local["x"].cast<int>();
return x == 42;
});
m.def("test_eval", [global]()
{
auto local = py::dict();
local["x"] = py::int_(42);
auto x = py::eval("x", global, local);
return x.cast<int>() == 42;
});
m.def("test_eval_single_statement", []()
{
auto local = py::dict();
local["call_test"] = py::cpp_function([&]() -> int { return 42; });
auto result = py::eval<py::eval_single_statement>("x = call_test()", py::dict(), local);
auto x = local["x"].cast<int>();
return result.is_none() && x == 42;
});
m.def("test_eval_file", [global](py::str filename)
{
auto local = py::dict();
local["y"] = py::int_(43);
int val_out = 0;
local["call_test2"] = py::cpp_function([&](int value)
{
val_out = value;
});
auto result = py::eval_file(std::move(filename), global, local);
return val_out == 43 && result.is_none();
});
m.def("test_eval_failure", []()
{
try
{
py::eval("nonsense code ...");
}
catch (py::error_already_set&)
{
return true;
}
return false;
});
m.def("test_eval_file_failure", []()
{
try
{
py::eval_file("non-existing file");
}
catch (std::exception&)
{
return true;
}
return false;
});
// test_eval_empty_globals
m.def("eval_empty_globals", [](py::object global)
{
if (global.is_none())
{
global = py::dict();
}
auto int_class = py::eval("isinstance(42, int)", global);
return global;
});
// test_eval_closure
m.def("test_eval_closure", []()
{
py::dict global;
global["closure_value"] = 42;
py::dict local;
local["closure_value"] = 0;
py::exec(R"(
local_value = closure_value
def func_global():
return closure_value
def func_local():
return local_value
)",
global,
local);
return std::make_pair(global, local);
});
}