83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
/* ----------------------------------------------------------------------
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LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
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https://www.lammps.org/, Sandia National Laboratories
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LAMMPS Development team: developers@lammps.org
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Copyright (2003) Sandia Corporation. Under the terms of Contract
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DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
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certain rights in this software. This software is distributed under
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the GNU General Public License.
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See the README file in the top-level LAMMPS directory.
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------------------------------------------------------------------------- */
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#include "lmptype.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include <exception>
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#include <string>
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#include "json.h"
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using namespace LAMMPS_NS;
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using ::testing::Eq;
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#define STRINGIFY(val) XSTR(val)
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#define XSTR(val) #val
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// this tests a subset of the JSON class that is most relevant to LAMMPS
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TEST(JSON, namespace)
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{
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std::string expected = "nlohmann_lmp::json_abi";
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expected += "_v" STRINGIFY(NLOHMANN_JSON_VERSION_MAJOR);
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expected += "_" STRINGIFY(NLOHMANN_JSON_VERSION_MINOR);
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expected += "_" STRINGIFY(NLOHMANN_JSON_VERSION_PATCH);
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const std::string ns{STRINGIFY(NLOHMANN_JSON_NAMESPACE)};
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ASSERT_THAT(expected, Eq(ns));
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}
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TEST(JSON, serialize_deserialize)
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{
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json j1;
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j1["pi"] = 3.141;
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j1["happy"] = true;
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j1["name"] = "Niels";
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j1["nothing"] = nullptr;
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std::string expected = "{\"happy\":true,\"name\":\"Niels\",\"nothing\":null,\"pi\":3.141}";
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std::string dumped = j1.dump(-1);
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ASSERT_THAT(expected, Eq(dumped));
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expected = "{\n \"happy\": true,\n \"name\": \"Niels\",\n \"nothing\": null,\n \"pi\": 3.141\n}";
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dumped = j1.dump(2, ' ');
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ASSERT_THAT(expected, Eq(dumped));
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json j2 = json::parse(expected);
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ASSERT_TRUE(j1 == j2);
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}
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TEST(JSON, init_vs_incremental)
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{
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json j1;
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j1["pi"] = 3.141;
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j1["happy"] = true;
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j1["name"] = "Niels";
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j1["nothing"] = nullptr;
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j1["answer"]["everything"] = 42;
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j1["list"] = {1, 0, 2};
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j1["object"] = {{"currency", "USD"}, {"value", 42.99}};
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json j2 = {{"pi", 3.141},
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{"happy", true},
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{"name", "Niels"},
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{"nothing", nullptr},
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{"answer", {{"everything", 42}}},
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{"list", {1, 0, 2}},
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{"object", {{"currency", "USD"}, {"value", 42.99}}}};
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ASSERT_TRUE(j1 == j2);
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}
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