public void Test_VstEventCollection_Constructor()
        {
            var target = new VstEventCollection();

            target.IsReadOnly.Should().BeFalse();

            target.Add(new VstMidiEvent(0, 100, 0, new byte[] { 100, 110, 120 }, 0, 0));
            target.Add(new VstMidiEvent(0, 100, 0, new byte[] { 100, 110, 120 }, 0, 0));
            target.Should().HaveCount(2);

            target.Clear();
            target.Should().BeEmpty();
        }
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        public void Test_VstEventCollection_Constructor()
        {
            VstEventCollection target = new VstEventCollection();

            Assert.IsFalse(target.IsReadOnly, "Collection is read-only.");

            target.Add(new VstMidiEvent(0, 100, 0, new byte[] { 100, 110, 120 }, 0, 0));
            target.Add(new VstMidiEvent(0, 100, 0, new byte[] { 100, 110, 120 }, 0, 0));

            Assert.AreEqual(2, target.Count, "Count is not as expected.");

            target.Clear();
            Assert.AreEqual(0, target.Count, "Count is not zero.");
        }
        /// <summary>
        ///     Receives processed MssEvents from the IWetMssEventOutputPort.
        /// </summary>
        /// <param name="mssEvents">List of processed mss events</param>
        /// <param name="sampleTimeAtEndOfProcessingCycle">
        ///     If wetMssEventOutputPort is configured to only output when a processing cycle ends then
        ///     sampleTimeAtEndOfProcessingCycle will contain the end time the cycle that just ended.
        /// </param>
        public void IWetMssEventOutputPort_SendingWetMssEvents(List <MssEvent> mssEvents,
                                                               long sampleTimeAtEndOfProcessingCycle)
        {
            if (this.vstHost == null)
            {
                return;
            }

            // a plugin must implement IVstPluginMidiSource or this call will throw an exception.
            IVstMidiProcessor midiHost = this.vstHost.GetInstance <IVstMidiProcessor>();

            // always expect some hosts not to support this.
            if (midiHost != null)
            {
                //Attempts to convert each MssEvent to a VstMidiEvent and add it to outEvents
                foreach (MssEvent mssEvent in mssEvents)
                {
                    //This will return null if there is no valid conversion.
                    VstMidiEvent midiEvent =
                        ConvertMssEventToVstMidiEvent(mssEvent,
                                                      this.SampleTimeAtStartOfProcessingCycle,
                                                      this.hostInfoOutputPort.SampleRate);
                    if (midiEvent != null)
                    {
                        this.outEvents.Add(midiEvent);
                        //midiHost.Process(outEvents);
                        //outEvents.Clear();
                    }
                }

                //TODO: Figure out why it doesn't work to send all of the events at once.
                //Sends VstMidiEvents to host
                midiHost.Process(outEvents);
                outEvents.Clear();
            }

            OnProcessingCycleEnd(sampleTimeAtEndOfProcessingCycle);
        }
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        protected override void FillBuffers(float[][] buffer, int offset, int count)
        {
            if (Bypass)       //effects just bypass
            {
                if (FIsSynth) //synths return silece
                {
                    foreach (var buf in buffer)
                    {
                        buf.ReadSilence(offset, count);
                    }
                }
                else
                {
                    var minChannels = Math.Min(FInputCount, FOutputCount);

                    for (int b = 0; b < minChannels; b++)
                    {
                        var inSig = FInput[b];
                        if (inSig != null)
                        {
                            //read input signals
                            inSig.Read(buffer[b], offset, count);
                        }
                    }

                    if (FOutputCount > FInputCount)
                    {
                        var remains = FOutputCount - FInputCount;
                        for (int i = 0; i < remains; i++)
                        {
                            buffer[i + minChannels - 1] = buffer[i % minChannels];
                        }
                    }
                }


                return;
            }


            if (PluginContext != null && FDoProcess)
            {
                ManageBuffers(count);

                if (FInput != null)
                {
                    FInputMgr.ClearAllBuffers();
                    for (int b = 0; b < FInputCount; b++)
                    {
                        var inSig = FInput[b];
                        if (inSig != null)
                        {
                            var vstBuffer = FInputBuffers[b % FInputCount];

                            //read input, use buffer[0] as temp buffer
                            inSig.Read(buffer[0], offset, count);

                            //copy to vst buffer
                            for (int i = 0; i < count; i++)
                            {
                                vstBuffer[i] += buffer[0][i];
                            }
                        }
                    }
                }

                //add events?
                if (FHasEvents)
                {
                    PluginContext.PluginCommandStub.ProcessEvents(MidiEvents.ToArray());
                    MidiEvents.Clear();
                    FHasEvents = false;
                }

                //process audio
                PluginContext.PluginCommandStub.ProcessReplacing(FInputBuffers, FOutputBuffers);

                //copy buffers
                for (int i = 0; i < FOutputBuffers.Length; i++)
                {
                    for (int j = 0; j < count; j++)
                    {
                        buffer[i][j] = FOutputBuffers[i][j];
                    }
                }
            }
        }