JUCE/modules/juce_osc/osc/juce_OSCBundle.cpp

/*
  ==============================================================================

   This file is part of the JUCE 7 technical preview.
   Copyright (c) 2022 - Raw Material Software Limited

   You may use this code under the terms of the GPL v3
   (see www.gnu.org/licenses).

   For the technical preview this file cannot be licensed commercially.

   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.

  ==============================================================================
*/

namespace juce
{

OSCBundle::OSCBundle()
{
}

OSCBundle::OSCBundle (OSCTimeTag t)  : timeTag (t)
{
}

// Note: The class invariant of OSCBundle::Element is that
// at least one of the pointers bundle and message is nullptr
// and the other one always points to a valid object.

OSCBundle::Element::Element (OSCMessage m)
    : message (new OSCMessage (m)), bundle (nullptr)
{
}

OSCBundle::Element::Element (OSCBundle b)
    : message (nullptr), bundle (new OSCBundle (b))
{
}

//==============================================================================
OSCBundle::Element::Element (const Element& other)
{
    if (this != &other)
    {
        message = nullptr;
        bundle = nullptr;

        if (other.isMessage())
            message.reset (new OSCMessage (other.getMessage()));
        else
            bundle.reset (new OSCBundle (other.getBundle()));
    }
}

//==============================================================================
OSCBundle::Element::~Element()
{
    bundle = nullptr;
    message = nullptr;
}

//==============================================================================
bool OSCBundle::Element::isMessage() const noexcept
{
    return message != nullptr;
}

bool OSCBundle::Element::isBundle() const noexcept
{
    return bundle != nullptr;
}

//==============================================================================
const OSCMessage& OSCBundle::Element::getMessage() const
{
    if (message == nullptr)
    {
        // This element is not a bundle! You must check this first before accessing.
        jassertfalse;
        throw OSCInternalError ("Access error in OSC bundle element.");
    }

    return *message;
}

//==============================================================================
const OSCBundle& OSCBundle::Element::getBundle() const
{
    if (bundle == nullptr)
    {
        // This element is not a bundle! You must check this first before accessing.
        jassertfalse;
        throw OSCInternalError ("Access error in OSC bundle element.");
    }

    return *bundle;
}


//==============================================================================
//==============================================================================
#if JUCE_UNIT_TESTS

class OSCBundleTests  : public UnitTest
{
public:
    OSCBundleTests()
        : UnitTest ("OSCBundle class", UnitTestCategories::osc)
    {}

    void runTest()
    {
        beginTest ("Construction");
        {
            OSCBundle bundle;
            expect (bundle.getTimeTag().isImmediately());
        }

        beginTest ("Construction with time tag");
        {
            Time in100Seconds = (Time (Time::currentTimeMillis()) + RelativeTime (100.0));
            OSCBundle bundle (in100Seconds);
            expect (! bundle.getTimeTag().isImmediately());
            expect (bundle.getTimeTag().toTime() == in100Seconds);
        }

        beginTest ("Usage when containing messages");
        {
            OSCBundle testBundle = generateTestBundle();
            expectBundleEqualsTestBundle (testBundle);

        }

        beginTest ("Usage when containing other bundles (recursively)");
        {
            OSCBundle complexTestBundle;
            complexTestBundle.addElement (generateTestBundle());
            complexTestBundle.addElement (OSCMessage ("/test/"));
            complexTestBundle.addElement (generateTestBundle());

            expect (complexTestBundle.size() == 3);

            OSCBundle::Element* elements = complexTestBundle.begin();

            expect (! elements[0].isMessage());
            expect (elements[0].isBundle());
            expect (elements[1].isMessage());
            expect (! elements[1].isBundle());
            expect (! elements[2].isMessage());
            expect (elements[2].isBundle());

            expectBundleEqualsTestBundle (elements[0].getBundle());
            expect (elements[1].getMessage().size() == 0);
            expect (elements[1].getMessage().getAddressPattern().toString() == "/test");
            expectBundleEqualsTestBundle (elements[2].getBundle());
        }
    }

private:

    int testInt = 127;
    float testFloat = 1.5;

    OSCBundle generateTestBundle()
    {
        OSCBundle bundle;

        OSCMessage msg1 ("/test/fader");
        msg1.addInt32 (testInt);

        OSCMessage msg2 ("/test/foo");
        msg2.addString ("bar");
        msg2.addFloat32 (testFloat);

        bundle.addElement (msg1);
        bundle.addElement (msg2);

        return bundle;
    }

    void expectBundleEqualsTestBundle (const OSCBundle& bundle)
    {
        expect (bundle.size() == 2);
        expect (bundle[0].isMessage());
        expect (! bundle[0].isBundle());
        expect (bundle[1].isMessage());
        expect (! bundle[1].isBundle());

        int numElementsCounted = 0;
        for (auto& element : bundle)
        {
            expect (element.isMessage());
            expect (! element.isBundle());
            ++numElementsCounted;
        }
        expectEquals (numElementsCounted, 2);

        auto* e = bundle.begin();
        expect (e[0].getMessage().size() == 1);
        expect (e[0].getMessage().begin()->getInt32() == testInt);
        expect (e[1].getMessage().size() == 2);
        expect (e[1].getMessage()[1].getFloat32() == testFloat);
    }
};

static OSCBundleTests OSCBundleUnitTests;

//==============================================================================
class OSCBundleElementTests  : public UnitTest
{
public:
    OSCBundleElementTests()
        : UnitTest ("OSCBundle::Element class", UnitTestCategories::osc)
    {}

    void runTest()
    {
        beginTest ("Construction from OSCMessage");
        {
            float testFloat = -0.125;
            OSCMessage msg ("/test");
            msg.addFloat32 (testFloat);

            OSCBundle::Element element (msg);

            expect (element.isMessage());
            expect (element.getMessage().size() == 1);
            expect (element.getMessage()[0].getType() == OSCTypes::float32);
            expect (element.getMessage()[0].getFloat32() == testFloat);
        }
    }
};

static OSCBundleElementTests OSCBundleElementUnitTests;

#endif

} // namespace juce