split test suite in one file per test case
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Niels
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31 changed files with 15291 additions and 14386 deletions
202
test/src/unit-reference_access.cpp
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202
test/src/unit-reference_access.cpp
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/*
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__ _____ _____ _____
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__| | __| | | | JSON for Modern C++ (test suite)
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| | |__ | | | | | | version 2.0.2
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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) 2013-2016 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 "catch.hpp"
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#include "json.hpp"
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using nlohmann::json;
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TEST_CASE("reference access")
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{
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// create a JSON value with different types
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json json_types =
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{
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{"boolean", true},
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{
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"number", {
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{"integer", 42},
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{"floating-point", 17.23}
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}
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},
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{"string", "Hello, world!"},
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{"array", {1, 2, 3, 4, 5}},
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{"null", nullptr}
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};
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SECTION("reference access to object_t")
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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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CHECK(&p1 == value.get_ptr<test_type*>());
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CHECK(p1 == value.get<test_type>());
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const test_type& p2 = value.get_ref<const test_type&>();
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CHECK(&p2 == value.get_ptr<const test_type*>());
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CHECK(p2 == value.get<test_type>());
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// check if mismatching references throw correctly
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CHECK_NOTHROW(value.get_ref<json::object_t&>());
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CHECK_THROWS(value.get_ref<json::array_t&>());
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CHECK_THROWS(value.get_ref<json::string_t&>());
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CHECK_THROWS(value.get_ref<json::boolean_t&>());
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CHECK_THROWS(value.get_ref<json::number_integer_t&>());
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CHECK_THROWS(value.get_ref<json::number_float_t&>());
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}
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SECTION("const reference access to const object_t")
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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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CHECK(&p2 == value.get_ptr<const test_type*>());
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CHECK(p2 == value.get<test_type>());
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}
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SECTION("reference access to array_t")
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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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CHECK(&p1 == value.get_ptr<test_type*>());
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CHECK(p1 == value.get<test_type>());
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const test_type& p2 = value.get_ref<const test_type&>();
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CHECK(&p2 == value.get_ptr<const test_type*>());
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CHECK(p2 == value.get<test_type>());
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// check if mismatching references throw correctly
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CHECK_THROWS(value.get_ref<json::object_t&>());
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CHECK_NOTHROW(value.get_ref<json::array_t&>());
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CHECK_THROWS(value.get_ref<json::string_t&>());
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CHECK_THROWS(value.get_ref<json::boolean_t&>());
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CHECK_THROWS(value.get_ref<json::number_integer_t&>());
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CHECK_THROWS(value.get_ref<json::number_float_t&>());
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}
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SECTION("reference access to string_t")
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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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CHECK(&p1 == value.get_ptr<test_type*>());
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CHECK(p1 == value.get<test_type>());
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const test_type& p2 = value.get_ref<const test_type&>();
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CHECK(&p2 == value.get_ptr<const test_type*>());
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CHECK(p2 == value.get<test_type>());
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// check if mismatching references throw correctly
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CHECK_THROWS(value.get_ref<json::object_t&>());
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CHECK_THROWS(value.get_ref<json::array_t&>());
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CHECK_NOTHROW(value.get_ref<json::string_t&>());
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CHECK_THROWS(value.get_ref<json::boolean_t&>());
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CHECK_THROWS(value.get_ref<json::number_integer_t&>());
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CHECK_THROWS(value.get_ref<json::number_float_t&>());
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}
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SECTION("reference access to boolean_t")
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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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CHECK(&p1 == value.get_ptr<test_type*>());
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CHECK(p1 == value.get<test_type>());
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const test_type& p2 = value.get_ref<const test_type&>();
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CHECK(&p2 == value.get_ptr<const test_type*>());
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CHECK(p2 == value.get<test_type>());
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// check if mismatching references throw correctly
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CHECK_THROWS(value.get_ref<json::object_t&>());
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CHECK_THROWS(value.get_ref<json::array_t&>());
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CHECK_THROWS(value.get_ref<json::string_t&>());
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CHECK_NOTHROW(value.get_ref<json::boolean_t&>());
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CHECK_THROWS(value.get_ref<json::number_integer_t&>());
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CHECK_THROWS(value.get_ref<json::number_float_t&>());
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}
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SECTION("reference access to number_integer_t")
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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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CHECK(&p1 == value.get_ptr<test_type*>());
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CHECK(p1 == value.get<test_type>());
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const test_type& p2 = value.get_ref<const test_type&>();
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CHECK(&p2 == value.get_ptr<const test_type*>());
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CHECK(p2 == value.get<test_type>());
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// check if mismatching references throw correctly
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CHECK_THROWS(value.get_ref<json::object_t&>());
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CHECK_THROWS(value.get_ref<json::array_t&>());
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CHECK_THROWS(value.get_ref<json::string_t&>());
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CHECK_THROWS(value.get_ref<json::boolean_t&>());
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CHECK_NOTHROW(value.get_ref<json::number_integer_t&>());
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CHECK_THROWS(value.get_ref<json::number_float_t&>());
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}
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SECTION("reference access to number_float_t")
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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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CHECK(&p1 == value.get_ptr<test_type*>());
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CHECK(p1 == value.get<test_type>());
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const test_type& p2 = value.get_ref<const test_type&>();
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CHECK(&p2 == value.get_ptr<const test_type*>());
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CHECK(p2 == value.get<test_type>());
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// check if mismatching references throw correctly
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CHECK_THROWS(value.get_ref<json::object_t&>());
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CHECK_THROWS(value.get_ref<json::array_t&>());
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CHECK_THROWS(value.get_ref<json::string_t&>());
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CHECK_THROWS(value.get_ref<json::boolean_t&>());
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CHECK_THROWS(value.get_ref<json::number_integer_t&>());
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CHECK_NOTHROW(value.get_ref<json::number_float_t&>());
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}
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}
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