mirror of
https://github.com/wpilibsuite/allwpilib
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Prepare wpiutil for merge into allwpilib.
This commit is contained in:
Peter Johnson
197
wpiutil/src/test/native/cpp/json/unit-reference_access.cpp
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197
wpiutil/src/test/native/cpp/json/unit-reference_access.cpp
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/*----------------------------------------------------------------------------*/
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/* Modifications Copyright (c) FIRST 2017. All Rights Reserved. */
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/* Open Source Software - may be modified and shared by FRC teams. The code */
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/* must be accompanied by the FIRST BSD license file in the root directory of */
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/* the project. */
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/*----------------------------------------------------------------------------*/
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/*
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__ _____ _____ _____
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__| | __| | | | JSON for Modern C++ (test suite)
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| | |__ | | | | | | version 2.1.1
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|_____|_____|_____|_|___| https://github.com/nlohmann/json
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Licensed under the MIT License <http://opensource.org/licenses/MIT>.
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Copyright (c) 2013-2017 Niels Lohmann <http://nlohmann.me>.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#include "gtest/gtest.h"
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#include "unit-json.h"
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using wpi::json;
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// reference access to object_t
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TEST(JsonReferenceTest, ObjectT)
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{
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using test_type = json::object_t;
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json value = {{"one", 1}, {"two", 2}};
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// check if references are returned correctly
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test_type& p1 = value.get_ref<test_type&>();
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EXPECT_EQ(&p1, value.get_ptr<test_type*>());
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EXPECT_EQ(p1, value.get<test_type>());
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const test_type& p2 = value.get_ref<const test_type&>();
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EXPECT_EQ(&p2, value.get_ptr<const test_type*>());
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EXPECT_EQ(p2, value.get<test_type>());
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// check if mismatching references throw correctly
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EXPECT_NO_THROW(value.get_ref<json::object_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::array_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::string_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::boolean_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::number_integer_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::number_float_t&>());
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}
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// const reference access to const object_t
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TEST(JsonReferenceTest, ConstObjectT)
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{
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using test_type = json::object_t;
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const json value = {{"one", 1}, {"two", 2}};
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// this should not compile
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// test_type& p1 = value.get_ref<test_type&>();
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// check if references are returned correctly
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const test_type& p2 = value.get_ref<const test_type&>();
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EXPECT_EQ(&p2, value.get_ptr<const test_type*>());
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EXPECT_EQ(p2, value.get<test_type>());
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}
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// reference access to array_t
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TEST(JsonReferenceTest, ArrayT)
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{
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using test_type = json::array_t;
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json value = {1, 2, 3, 4};
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// check if references are returned correctly
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test_type& p1 = value.get_ref<test_type&>();
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EXPECT_EQ(&p1, value.get_ptr<test_type*>());
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EXPECT_EQ(p1, value.get<test_type>());
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const test_type& p2 = value.get_ref<const test_type&>();
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EXPECT_EQ(&p2, value.get_ptr<const test_type*>());
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EXPECT_EQ(p2, value.get<test_type>());
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// check if mismatching references throw correctly
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EXPECT_ANY_THROW(value.get_ref<json::object_t&>());
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EXPECT_NO_THROW(value.get_ref<json::array_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::string_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::boolean_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::number_integer_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::number_float_t&>());
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}
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// reference access to string_t
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TEST(JsonReferenceTest, StringT)
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{
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using test_type = json::string_t;
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json value = "hello";
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// check if references are returned correctly
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test_type& p1 = value.get_ref<test_type&>();
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EXPECT_EQ(&p1, value.get_ptr<test_type*>());
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EXPECT_EQ(p1, value.get<test_type>());
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const test_type& p2 = value.get_ref<const test_type&>();
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EXPECT_EQ(&p2, value.get_ptr<const test_type*>());
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EXPECT_EQ(p2, value.get<test_type>());
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// check if mismatching references throw correctly
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EXPECT_ANY_THROW(value.get_ref<json::object_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::array_t&>());
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EXPECT_NO_THROW(value.get_ref<json::string_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::boolean_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::number_integer_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::number_float_t&>());
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}
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// reference access to boolean_t
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TEST(JsonReferenceTest, BooleanT)
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{
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using test_type = json::boolean_t;
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json value = false;
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// check if references are returned correctly
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test_type& p1 = value.get_ref<test_type&>();
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EXPECT_EQ(&p1, value.get_ptr<test_type*>());
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EXPECT_EQ(p1, value.get<test_type>());
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const test_type& p2 = value.get_ref<const test_type&>();
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EXPECT_EQ(&p2, value.get_ptr<const test_type*>());
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EXPECT_EQ(p2, value.get<test_type>());
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// check if mismatching references throw correctly
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EXPECT_ANY_THROW(value.get_ref<json::object_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::array_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::string_t&>());
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EXPECT_NO_THROW(value.get_ref<json::boolean_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::number_integer_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::number_float_t&>());
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}
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// reference access to number_integer_t
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TEST(JsonReferenceTest, IntegerT)
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{
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using test_type = json::number_integer_t;
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json value = 23;
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// check if references are returned correctly
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test_type& p1 = value.get_ref<test_type&>();
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EXPECT_EQ(&p1, value.get_ptr<test_type*>());
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EXPECT_EQ(p1, value.get<test_type>());
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const test_type& p2 = value.get_ref<const test_type&>();
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EXPECT_EQ(&p2, value.get_ptr<const test_type*>());
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EXPECT_EQ(p2, value.get<test_type>());
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// check if mismatching references throw correctly
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EXPECT_ANY_THROW(value.get_ref<json::object_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::array_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::string_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::boolean_t&>());
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EXPECT_NO_THROW(value.get_ref<json::number_integer_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::number_float_t&>());
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}
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// reference access to number_float_t
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TEST(JsonReferenceTest, FloatT)
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{
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using test_type = json::number_float_t;
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json value = 42.23;
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// check if references are returned correctly
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test_type& p1 = value.get_ref<test_type&>();
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EXPECT_EQ(&p1, value.get_ptr<test_type*>());
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EXPECT_EQ(p1, value.get<test_type>());
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const test_type& p2 = value.get_ref<const test_type&>();
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EXPECT_EQ(&p2, value.get_ptr<const test_type*>());
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EXPECT_EQ(p2, value.get<test_type>());
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// check if mismatching references throw correctly
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EXPECT_ANY_THROW(value.get_ref<json::object_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::array_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::string_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::boolean_t&>());
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EXPECT_ANY_THROW(value.get_ref<json::number_integer_t&>());
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EXPECT_NO_THROW(value.get_ref<json::number_float_t&>());
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}
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