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#pragma once
#include "py_cast.h"
#include "py_yql_module.h"
#include "py_utils.h"
#include <yql/essentials/minikql/computation/mkql_computation_node_holders.h>
#include <yql/essentials/minikql/mkql_type_builder.h>
#include <yql/essentials/minikql/computation/mkql_value_builder.h>
#include <yql/essentials/udfs/common/python/python_udf/python_udf.h>
#include <library/cpp/testing/unittest/registar.h>
#define PYTHON_TEST_TAG "Python2Test"
using namespace NKikimr;
using namespace NMiniKQL;
namespace NPython {
//////////////////////////////////////////////////////////////////////////////
// TPyInitializer
//////////////////////////////////////////////////////////////////////////////
struct TPyInitializer {
TPyInitializer() {
PrepareYqlModule();
Py_Initialize();
InitYqlModule(NYql::NUdf::EPythonFlavor::Arcadia);
const auto rc = PyRun_SimpleString(NYql::NUdf::STANDART_STREAM_PROXY_INJECTION_SCRIPT);
Y_ENSURE(rc >= 0, "Can't setup module");
}
~TPyInitializer() {
TermYqlModule();
Py_Finalize();
}
};
//////////////////////////////////////////////////////////////////////////////
// TPythonTestEngine
//////////////////////////////////////////////////////////////////////////////
class TPythonTestEngine {
public:
TPythonTestEngine()
: MemInfo_("Memory")
, Alloc_(__LOCATION__)
, Env_(Alloc_)
, TypeInfoHelper_(new TTypeInfoHelper)
, FunctionInfoBuilder_(Env_, TypeInfoHelper_, "", nullptr, {})
{
HolderFactory_ = MakeHolder<THolderFactory>(
Alloc_.Ref(),
MemInfo_,
nullptr);
ValueBuilder_ = MakeHolder<TDefaultValueBuilder>(*HolderFactory_, NUdf::EValidatePolicy::Exception);
BindTerminator_ = MakeHolder<TBindTerminator>(ValueBuilder_.Get());
Singleton<TPyInitializer>();
CastCtx_ = MakeIntrusive<TPyCastContext>(&GetValueBuilder(),
MakeIntrusive<TPyContext>(TypeInfoHelper_.Get(), NUdf::TStringRef::Of(PYTHON_TEST_TAG), NUdf::TSourcePosition())
);
}
~TPythonTestEngine() {
PyCleanup();
}
NUdf::IFunctionTypeInfoBuilder& GetTypeBuilder() {
return FunctionInfoBuilder_;
}
const NUdf::IValueBuilder& GetValueBuilder() const {
return *ValueBuilder_;
}
template <typename TChecker>
void ToMiniKQL(NUdf::TType* udfType, const TStringBuf& script, TChecker&& checker) {
TPyObjectPtr result = RunPythonFunction(script);
UNIT_ASSERT_C(!!result, script);
TType* type = static_cast<TType*>(udfType);
auto value = FromPyObject(CastCtx_, type, result.Get());
checker(value);
}
template <typename TExpectedType, typename TChecker>
void ToMiniKQL(const TStringBuf& script, TChecker&& checker) {
auto type = GetTypeBuilder().SimpleType<TExpectedType>();
ToMiniKQL<TChecker>(type, script, std::move(checker));
}
template <typename TChecker>
void ToMiniKQLWithArg(
NUdf::TType* udfType, PyObject* argValue,
const TStringBuf& script, TChecker&& checker)
{
TPyObjectPtr args = Py_BuildValue("(O)", argValue);
auto result = RunPythonFunction(script, args.Get());
if (!result || PyErr_Occurred()) {
PyErr_Print();
UNIT_FAIL("function execution error");
}
TType* type = static_cast<TType*>(udfType);
auto value = FromPyObject(CastCtx_, type, result.Get());
checker(value);
}
template <typename TExpectedType, typename TChecker>
void ToMiniKQLWithArg(
PyObject* argValue,
const TStringBuf& script, TChecker&& checker)
{
auto type = GetTypeBuilder().SimpleType<TExpectedType>();
ToMiniKQLWithArg<TChecker>(type, argValue, script, std::move(checker));
}
template <typename TMiniKQLValueBuilder>
TPyObjectPtr ToPython(
NUdf::TType* udfType,
TMiniKQLValueBuilder&& builder,
const TStringBuf& script)
{
try {
TType* type = static_cast<TType*>(udfType);
NUdf::TUnboxedValue value = builder(type, GetValueBuilder());
TPyObjectPtr pyValue = ToPyObject(CastCtx_, type, value);
if (!pyValue || PyErr_Occurred()) {
PyErr_Print();
UNIT_FAIL("object execution error");
}
TPyObjectPtr args = Py_BuildValue("(O)", pyValue.Get());
auto result = RunPythonFunction(script, args.Get());
if (!result || PyErr_Occurred()) {
PyErr_Print();
UNIT_FAIL("function execution error");
}
return result;
} catch (const yexception& e) {
Cerr << e << Endl;
UNIT_FAIL("cast error");
}
Py_RETURN_NONE;
}
template <typename TExpectedType, typename TMiniKQLValueBuilder>
TPyObjectPtr ToPython(TMiniKQLValueBuilder&& builder, const TStringBuf& script) {
auto type = GetTypeBuilder().SimpleType<TExpectedType>();
return ToPython<TMiniKQLValueBuilder>(type, std::move(builder), script);
}
NUdf::TUnboxedValue FromPython(NUdf::TType* udfType, const TStringBuf& script) {
auto result = RunPythonFunction(script);
if (!result || PyErr_Occurred()) {
PyErr_Print();
UNIT_FAIL("function execution error");
}
TType* type = static_cast<TType*>(udfType);
return FromPyObject(CastCtx_, type, result.Get());
}
template <typename TExpectedType>
NUdf::TUnboxedValue FromPython(const TStringBuf& script) {
auto type = GetTypeBuilder().SimpleType<TExpectedType>();
return FromPython(type, script);
}
template <typename TArgumentType, typename TReturnType = TArgumentType, typename TMiniKQLValueBuilder>
NUdf::TUnboxedValue ToPythonAndBack(TMiniKQLValueBuilder&& builder, const TStringBuf& script) {
const auto aType = GetTypeBuilder().SimpleType<TArgumentType>();
const auto result = ToPython<TMiniKQLValueBuilder>(aType, std::move(builder), script);
if (!result || PyErr_Occurred()) {
PyErr_Print();
UNIT_FAIL("function execution error");
}
const auto rType = static_cast<TType*>(GetTypeBuilder().SimpleType<TReturnType>());
return FromPyObject(CastCtx_, rType, result.Get());
}
template <typename TArgumentType, typename TReturnType = TArgumentType, typename TMiniKQLValueBuilder, typename TChecker>
void ToPythonAndBack(TMiniKQLValueBuilder&& builder, const TStringBuf& script, TChecker&& checker) {
const auto result = ToPythonAndBack<TArgumentType, TReturnType, TMiniKQLValueBuilder>(std::move(builder), script);
checker(result);
}
private:
TPyObjectPtr RunPythonFunction(
const TStringBuf& script, PyObject* args = nullptr)
{
TString filename(TStringBuf("embedded:test.py"));
TPyObjectPtr code(Py_CompileString(script.data(), filename.data(), Py_file_input));
if (!code) {
PyErr_Print();
UNIT_FAIL("can't compile python script");
}
TString moduleName(TStringBuf("py_cast_ut"));
TPyObjectPtr module(PyImport_ExecCodeModule(moduleName.begin(), code.Get()));
if (!module) {
PyErr_Print();
UNIT_FAIL("can't create python module");
}
TPyObjectPtr function(PyObject_GetAttrString(module.Get(), "Test"));
if (!function) {
PyErr_Print();
UNIT_FAIL("function 'Test' is not found in module");
}
return PyObject_CallObject(function.Get(), args);
}
private:
TMemoryUsageInfo MemInfo_;
TScopedAlloc Alloc_;
TTypeEnvironment Env_;
const NUdf::ITypeInfoHelper::TPtr TypeInfoHelper_;
TFunctionTypeInfoBuilder FunctionInfoBuilder_;
THolder<THolderFactory> HolderFactory_;
THolder<TDefaultValueBuilder> ValueBuilder_;
THolder<TBindTerminator> BindTerminator_;
TPyCastContext::TPtr CastCtx_;
};
} // namespace NPython
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