pybind11/tests/test_eval.cpp

81 lines
2.2 KiB
C++
Raw Normal View History

2016-06-09 14:10:26 +00:00
/*
tests/test_eval.cpp -- Usage of eval() and eval_file()
2016-06-09 14:10:26 +00:00
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.
*/
2016-07-08 08:52:10 +00:00
#include <pybind11/eval.h>
#include "pybind11_tests.h"
2016-06-09 14:10:26 +00:00
test_initializer eval([](py::module &m) {
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;
});
2016-06-09 14:10:26 +00:00
auto result = py::eval<py::eval_statements>(
"print('Hello World!');\n"
"x = call_test();",
global, local
);
auto x = local["x"].cast<int>();
2016-06-09 14:10:26 +00:00
return result == py::none() && x == 42;
2016-07-08 08:52:10 +00:00
});
2016-06-09 14:10:26 +00:00
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;
});
2016-06-09 14:10:26 +00:00
m.def("test_eval_single_statement", []() {
auto local = py::dict();
local["call_test"] = py::cpp_function([&]() -> int {
return 42;
});
2016-06-09 14:10:26 +00:00
auto result = py::eval<py::eval_single_statement>("x = call_test()", py::dict(), local);
auto x = local["x"].cast<int>();
return result == py::none() && x == 42;
});
m.def("test_eval_file", [global](py::str filename) {
auto local = py::dict();
local["y"] = py::int_(43);
int val_out;
local["call_test2"] = py::cpp_function([&](int value) { val_out = value; });
auto result = py::eval_file(filename, global, local);
return val_out == 43 && result == py::none();
});
m.def("test_eval_failure", []() {
try {
py::eval("nonsense code ...");
} catch (py::error_already_set &) {
PyErr_Clear();
return true;
}
return false;
});
m.def("test_eval_file_failure", []() {
try {
py::eval_file("non-existing file");
} catch (std::exception &) {
return true;
}
return false;
});
});