// Copyright (C) 2018-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
//

#include <memory>
#include <sstream>
#include <string>
#include <vector>

#include "gtest/gtest.h"

#include "ngraph/ngraph.hpp"

NGRAPH_SUPPRESS_DEPRECATED_START

using namespace ngraph;
using namespace std;

TEST(node_input_output, input_create)
{
    auto x = make_shared<op::Parameter>(element::f32, Shape{1, 2, 3, 4});
    auto y = make_shared<op::Parameter>(element::f32, Shape{1, 2, 3, 4});
    auto add = make_shared<op::v1::Add>(x, y);

    auto add_in_0 = add->input(0);
    auto add_in_1 = add->input(1);

    EXPECT_EQ(add_in_0.get_node(), add.get());
    EXPECT_EQ(add_in_0.get_index(), 0);
    EXPECT_EQ(add_in_0.get_element_type(), element::f32);
    EXPECT_EQ(add_in_0.get_shape(), (Shape{1, 2, 3, 4}));
    EXPECT_TRUE(add_in_0.get_partial_shape().same_scheme(PartialShape{1, 2, 3, 4}));
    EXPECT_EQ(add_in_0.get_source_output(), Output<Node>(x, 0));

    EXPECT_EQ(add_in_1.get_node(), add.get());
    EXPECT_EQ(add_in_1.get_index(), 1);
    EXPECT_EQ(add_in_1.get_element_type(), element::f32);
    EXPECT_EQ(add_in_1.get_shape(), (Shape{1, 2, 3, 4}));
    EXPECT_TRUE(add_in_1.get_partial_shape().same_scheme(PartialShape{1, 2, 3, 4}));
    EXPECT_EQ(add_in_1.get_source_output(), Output<Node>(y, 0));

    EXPECT_THROW(add->input(2), std::out_of_range);
}

TEST(node_input_output, input_create_const)
{
    auto x = make_shared<op::Parameter>(element::f32, Shape{1, 2, 3, 4});
    auto y = make_shared<op::Parameter>(element::f32, Shape{1, 2, 3, 4});
    auto add = make_shared<const op::v1::Add>(x, y);

    auto add_in_0 = add->input(0);
    auto add_in_1 = add->input(1);

    EXPECT_EQ(add_in_0.get_node(), add.get());
    EXPECT_EQ(add_in_0.get_index(), 0);
    EXPECT_EQ(add_in_0.get_element_type(), element::f32);
    EXPECT_EQ(add_in_0.get_shape(), (Shape{1, 2, 3, 4}));
    EXPECT_TRUE(add_in_0.get_partial_shape().same_scheme(PartialShape{1, 2, 3, 4}));
    EXPECT_EQ(add_in_0.get_source_output(), Output<Node>(x, 0));

    EXPECT_EQ(add_in_1.get_node(), add.get());
    EXPECT_EQ(add_in_1.get_index(), 1);
    EXPECT_EQ(add_in_1.get_element_type(), element::f32);
    EXPECT_EQ(add_in_1.get_shape(), (Shape{1, 2, 3, 4}));
    EXPECT_TRUE(add_in_1.get_partial_shape().same_scheme(PartialShape{1, 2, 3, 4}));
    EXPECT_EQ(add_in_1.get_source_output(), Output<Node>(y, 0));

    EXPECT_THROW(add->input(2), std::out_of_range);
}

TEST(node_input_output, output_create)
{
    auto x = make_shared<op::Parameter>(element::f32, Shape{1, 2, 3, 4});
    auto y = make_shared<op::Parameter>(element::f32, Shape{1, 2, 3, 4});
    auto add = make_shared<op::v1::Add>(x, y);

    auto add_out_0 = add->output(0);

    EXPECT_EQ(add_out_0.get_node(), add.get());
    EXPECT_EQ(add_out_0.get_index(), 0);
    EXPECT_EQ(add_out_0.get_element_type(), element::f32);
    EXPECT_EQ(add_out_0.get_shape(), (Shape{1, 2, 3, 4}));
    EXPECT_TRUE(add_out_0.get_partial_shape().same_scheme(PartialShape{1, 2, 3, 4}));

    EXPECT_THROW(add->output(1), std::out_of_range);
}

TEST(node_input_output, output_create_const)
{
    auto x = make_shared<op::Parameter>(element::f32, Shape{1, 2, 3, 4});
    auto y = make_shared<op::Parameter>(element::f32, Shape{1, 2, 3, 4});
    auto add = make_shared<const op::v1::Add>(x, y);

    auto add_out_0 = add->output(0);

    EXPECT_EQ(add_out_0.get_node(), add.get());
    EXPECT_EQ(add_out_0.get_index(), 0);
    EXPECT_EQ(add_out_0.get_element_type(), element::f32);
    EXPECT_EQ(add_out_0.get_shape(), (Shape{1, 2, 3, 4}));
    EXPECT_TRUE(add_out_0.get_partial_shape().same_scheme(PartialShape{1, 2, 3, 4}));

    EXPECT_THROW(add->output(1), std::out_of_range);
}