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#include "py_test_engine.h"

#include <library/cpp/testing/unittest/registar.h>

using namespace NPython;

Y_UNIT_TEST_SUITE(FromPyNone) {
Y_UNIT_TEST(FromPyNone) {
    TPythonTestEngine engine;
    engine.ToMiniKQL<NUdf::TOptional<ui32>>(
        "def Test(): return None",
        [](const NUdf::TUnboxedValuePod& value) {
            UNIT_ASSERT(!value);
        });
}

Y_UNIT_TEST(FromPyObject) {
    TPythonTestEngine engine;
    engine.ToMiniKQL<NUdf::TOptional<ui32>>(
        "def Test(): return 42",
        [](const NUdf::TUnboxedValuePod& value) {
            UNIT_ASSERT(value);
            UNIT_ASSERT_EQUAL(value.Get<ui32>(), 42);
        });
}

Y_UNIT_TEST(ToPyNone) {
    TPythonTestEngine engine;
    engine.ToPython<NUdf::TOptional<char*>>(
        [](const TType* type, const NUdf::IValueBuilder& vb) {
            Y_UNUSED(type);
            Y_UNUSED(vb);
            return NUdf::TUnboxedValuePod();
        },
        "def Test(value):\n"
        "    assert value == None\n");
}

Y_UNIT_TEST(ToPyFilledOptional) {
    TPythonTestEngine engine;
    engine.ToPython<NUdf::TOptional<NUdf::TTuple<NUdf::TUtf8, bool>>>(
        [](const TType* type, const NUdf::IValueBuilder& vb) {
            const TOptionalType* optType =
                static_cast<const TOptionalType*>(type);
            NUdf::TUnboxedValue* items = nullptr;
            auto tuple = vb.NewArray(static_cast<const TTupleType*>(optType->GetItemType())->GetElementsCount(), items);
            items[0] = vb.NewString("test string");
            items[1] = NUdf::TUnboxedValuePod(false);
            return NUdf::TUnboxedValue(tuple);
        },
        "def Test(value):\n"
        "    assert isinstance(value, tuple)\n"
        "    assert len(value) == 2\n"
        "    assert value == ('test string', False)\n");
}
} // Y_UNIT_TEST_SUITE(FromPyNone)