rippled/src/test/json/Object_test.cpp

//------------------------------------------------------------------------------
/*
    This file is part of rippled: https://github.com/ripple/rippled
    Copyright (c) 2012, 2013 Ripple Labs Inc.

    Permission to use, copy, modify, and/or distribute this software for any
    purpose  with  or without fee is hereby granted, provided that the above
    copyright notice and this permission notice appear in all copies.

    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================

#include <test/json/TestOutputSuite.h>

#include <xrpl/beast/unit_test.h>
#include <xrpl/json/Object.h>

namespace Json {

class JsonObject_test : public ripple::test::TestOutputSuite
{
    void
    setup(std::string const& testName)
    {
        testcase(testName);
        output_.clear();
    }

    std::unique_ptr<WriterObject> writerObject_;

    Object&
    makeRoot()
    {
        writerObject_ =
            std::make_unique<WriterObject>(stringWriterObject(output_));
        return **writerObject_;
    }

    void
    expectResult(std::string const& expected)
    {
        writerObject_.reset();
        TestOutputSuite::expectResult(expected);
    }

public:
    void
    testTrivial()
    {
        setup("trivial");

        {
            auto& root = makeRoot();
            (void)root;
        }
        expectResult("{}");
    }

    void
    testSimple()
    {
        setup("simple");
        {
            auto& root = makeRoot();
            root["hello"] = "world";
            root["skidoo"] = 23;
            root["awake"] = false;
            root["temperature"] = 98.6;
        }

        expectResult(
            "{\"hello\":\"world\","
            "\"skidoo\":23,"
            "\"awake\":false,"
            "\"temperature\":98.6}");
    }

    void
    testOneSub()
    {
        setup("oneSub");
        {
            auto& root = makeRoot();
            root.setArray("ar");
        }
        expectResult("{\"ar\":[]}");
    }

    void
    testSubs()
    {
        setup("subs");
        {
            auto& root = makeRoot();

            {
                // Add an array with three entries.
                auto array = root.setArray("ar");
                array.append(23);
                array.append(false);
                array.append(23.5);
            }

            {
                // Add an object with one entry.
                auto obj = root.setObject("obj");
                obj["hello"] = "world";
            }

            {
                // Add another object with two entries.
                Json::Value value;
                value["h"] = "w";
                value["f"] = false;
                root["obj2"] = value;
            }
        }

        // Json::Value has an unstable order...
        auto case1 =
            "{\"ar\":[23,false,23.5],"
            "\"obj\":{\"hello\":\"world\"},"
            "\"obj2\":{\"h\":\"w\",\"f\":false}}";
        auto case2 =
            "{\"ar\":[23,false,23.5],"
            "\"obj\":{\"hello\":\"world\"},"
            "\"obj2\":{\"f\":false,\"h\":\"w\"}}";
        writerObject_.reset();
        BEAST_EXPECT(output_ == case1 || output_ == case2);
    }

    void
    testSubsShort()
    {
        setup("subsShort");

        {
            auto& root = makeRoot();

            {
                // Add an array with three entries.
                auto array = root.setArray("ar");
                array.append(23);
                array.append(false);
                array.append(23.5);
            }

            // Add an object with one entry.
            root.setObject("obj")["hello"] = "world";

            {
                // Add another object with two entries.
                auto object = root.setObject("obj2");
                object.set("h", "w");
                object.set("f", false);
            }
        }
        expectResult(
            "{\"ar\":[23,false,23.5],"
            "\"obj\":{\"hello\":\"world\"},"
            "\"obj2\":{\"h\":\"w\",\"f\":false}}");
    }

    void
    testFailureObject()
    {
        {
            setup("object failure assign");
            auto& root = makeRoot();
            auto obj = root.setObject("o1");
            expectException([&]() { root["fail"] = "complete"; });
        }
        {
            setup("object failure object");
            auto& root = makeRoot();
            auto obj = root.setObject("o1");
            expectException([&]() { root.setObject("o2"); });
        }
        {
            setup("object failure Array");
            auto& root = makeRoot();
            auto obj = root.setArray("o1");
            expectException([&]() { root.setArray("o2"); });
        }
    }

    void
    testFailureArray()
    {
        {
            setup("array failure append");
            auto& root = makeRoot();
            auto array = root.setArray("array");
            auto subarray = array.appendArray();
            auto fail = [&]() { array.append("fail"); };
            expectException(fail);
        }
        {
            setup("array failure appendArray");
            auto& root = makeRoot();
            auto array = root.setArray("array");
            auto subarray = array.appendArray();
            auto fail = [&]() { array.appendArray(); };
            expectException(fail);
        }
        {
            setup("array failure appendObject");
            auto& root = makeRoot();
            auto array = root.setArray("array");
            auto subarray = array.appendArray();
            auto fail = [&]() { array.appendObject(); };
            expectException(fail);
        }
    }

    void
    testKeyFailure()
    {
        setup("repeating keys");
        auto& root = makeRoot();
        root.set("foo", "bar");
        root.set("baz", 0);
        // setting key again throws in !NDEBUG builds
        auto set_again = [&]() { root.set("foo", "bar"); };
#ifdef NDEBUG
        set_again();
        pass();
#else
        expectException(set_again);
#endif
    }

    void
    run() override
    {
        testTrivial();
        testSimple();

        testOneSub();
        testSubs();
        testSubsShort();

        testFailureObject();
        testFailureArray();
        testKeyFailure();
    }
};

BEAST_DEFINE_TESTSUITE(JsonObject, json, ripple);

}  // namespace Json