//
//  GatherV2Test.cpp
//  MNNTests
//
//  Created by MNN on 2019/01/15.
//  Copyright © 2018, Alibaba Group Holding Limited
//

#include <MNN/expr/Expr.hpp>
#include <MNN/expr/ExprCreator.hpp>
#include "MNNTestSuite.h"
#include "TestUtils.h"
using namespace MNN::Express;
class GatherV2Test : public MNNTestCase {
public:
    virtual ~GatherV2Test() = default;
    virtual bool run(int precision) {
        auto params = _Input({4, 3, 2}, NCHW);
        params->setName("input_tensor");
        // set input data
        const float inpudata[] = {1.0,  2.0,  3.0,  4.0,  5.0,  6.0,  7.0,  8.0, 9.0, 10.0, 11.0, 12.0, 13.0,
                                  14.0, 15.0, 16.0, 17.0, 18.0, 19.0, 20.0, 21,  0,   22.0, 23.0, 24.0};
        auto inputPtr          = params->writeMap<float>();
        memcpy(inputPtr, inpudata, 24 * sizeof(float));
        params->unMap();
        const int indices_data[]                = {1, 0, 1, 0};
        auto indices                            = _Const(indices_data, {4}, NCHW, halide_type_of<int>());
        auto output                             = _GatherV2(params, indices, nullptr);
        const std::vector<float> expectedOutput = {7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0,
                                                   7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0};
        auto gotOutput                          = output->readMap<float>();
        if (!checkVector<float>(gotOutput, expectedOutput.data(), 24, 0.01)) {
            MNN_ERROR("GatherV2Test test failed!\n");
            return false;
        }
        return true;
    }
};
MNNTestSuiteRegister(GatherV2Test, "op/gatherv2");