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Rewrite eval tests to allow for simple asserts
Most of the test code is left in C++ since this is the intended use case for the eval functions.
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@ -11,92 +11,70 @@
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#include <pybind11/eval.h>
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#include "pybind11_tests.h"
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void example_eval() {
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py::module main_module = py::module::import("__main__");
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py::object main_namespace = main_module.attr("__dict__");
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void init_ex_eval(py::module & m) {
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auto global = py::dict(py::module::import("__main__").attr("__dict__"));
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bool ok = false;
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m.def("test_eval_statements", [global]() {
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auto local = py::dict();
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local["call_test"] = py::cpp_function([&]() -> int {
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return 42;
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});
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main_module.def("call_test", [&]() -> int {
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ok = true;
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return 42;
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auto result = py::eval<py::eval_statements>(
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"print('Hello World!');\n"
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"x = call_test();",
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global, local
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);
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auto x = local["x"].cast<int>();
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return result == py::none() && x == 42;
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});
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cout << "eval_statements test" << endl;
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m.def("test_eval", [global]() {
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auto local = py::dict();
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local["x"] = py::int_(42);
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auto x = py::eval("x", global, local);
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return x.cast<int>() == 42;
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});
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auto result = py::eval<py::eval_statements>(
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"print('Hello World!');\n"
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"x = call_test();", main_namespace);
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m.def("test_eval_single_statement", []() {
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auto local = py::dict();
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local["call_test"] = py::cpp_function([&]() -> int {
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return 42;
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});
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if (ok && result == py::none())
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cout << "eval_statements passed" << endl;
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else
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cout << "eval_statements failed" << endl;
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auto result = py::eval<py::eval_single_statement>("x = call_test()", py::dict(), local);
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auto x = local["x"].cast<int>();
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return result == py::none() && x == 42;
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});
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cout << "eval test" << endl;
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m.def("test_eval_file", [global](py::str filename) {
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auto local = py::dict();
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local["y"] = py::int_(43);
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py::object val = py::eval("x", main_namespace);
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int val_out;
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local["call_test2"] = py::cpp_function([&](int value) { val_out = value; });
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if (val.cast<int>() == 42)
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cout << "eval passed" << endl;
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else
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cout << "eval failed" << endl;
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auto result = py::eval_file(filename, global, local);
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return val_out == 43 && result == py::none();
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});
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ok = false;
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cout << "eval_single_statement test" << endl;
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m.def("test_eval_failure", []() {
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try {
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py::eval("nonsense code ...");
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} catch (py::error_already_set &) {
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PyErr_Clear();
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return true;
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}
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return false;
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});
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py::eval<py::eval_single_statement>(
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"y = call_test();", main_namespace);
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if (ok)
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cout << "eval_single_statement passed" << endl;
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else
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cout << "eval_single_statement failed" << endl;
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cout << "eval_file test" << endl;
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int val_out;
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main_module.def("call_test2", [&](int value) {val_out = value;});
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try {
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result = py::eval_file("test_eval_call.py", main_namespace);
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} catch (...) {
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result = py::eval_file("tests/test_eval_call.py", main_namespace);
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}
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if (val_out == 42 && result == py::none())
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cout << "eval_file passed" << endl;
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else
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cout << "eval_file failed" << endl;
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ok = false;
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cout << "eval failure test" << endl;
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try {
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py::eval("nonsense code ...");
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} catch (py::error_already_set &) {
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PyErr_Clear();
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ok = true;
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}
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if (ok)
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cout << "eval failure test passed" << endl;
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else
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cout << "eval failure test failed" << endl;
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ok = false;
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cout << "eval_file failure test" << endl;
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try {
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py::eval_file("nonexisting file");
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} catch (std::exception &) {
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ok = true;
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}
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if (ok)
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cout << "eval_file failure test passed" << endl;
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else
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cout << "eval_file failure test failed" << endl;
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}
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void init_ex_eval(py::module & m) {
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m.def("example_eval", &example_eval);
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m.def("test_eval_file_failure", []() {
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try {
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py::eval_file("non-existing file");
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} catch (std::exception &) {
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return true;
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}
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return false;
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});
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}
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@ -1,22 +1,19 @@
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import os
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def test_eval(capture):
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from pybind11_tests import example_eval
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def test_evals(capture):
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from pybind11_tests import (test_eval_statements, test_eval, test_eval_single_statement,
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test_eval_file, test_eval_failure, test_eval_file_failure)
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with capture:
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example_eval()
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assert capture == """
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eval_statements test
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Hello World!
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eval_statements passed
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eval test
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eval passed
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eval_single_statement test
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eval_single_statement passed
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eval_file test
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eval_file passed
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eval failure test
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eval failure test passed
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eval_file failure test
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eval_file failure test passed
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"""
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assert test_eval_statements()
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assert capture == "Hello World!"
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assert test_eval()
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assert test_eval_single_statement()
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filename = os.path.join(os.path.dirname(__file__), "test_eval_call.py")
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assert test_eval_file(filename)
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assert test_eval_failure()
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assert test_eval_file_failure()
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@ -1,4 +1,4 @@
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# This file is called from 'test_eval.py'
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if 'call_test2' in globals():
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if 'call_test2' in locals():
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call_test2(y)
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