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 *
 * OPC Foundation MIT License 1.00
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
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using System.IO;
using NUnit.Framework;
using Opc.Ua.PubSub.Configuration;
using Opc.Ua.Tests;

namespace Opc.Ua.PubSub.Tests.Configuration
{
    public partial class PubSubStateMachineTests
    {
        internal static readonly string PublisherConfigurationFileName = Path.Combine(
            "Configuration",
            "PublisherConfiguration.xml");

        internal static readonly string SubscriberConfigurationFileName = Path.Combine(
            "Configuration",
            "SubscriberConfiguration.xml");

        private string m_publisherConfigurationFile;
        private string m_subscriberConfigurationFile;

        [OneTimeSetUp]
        public void MyTestInitialize()
        {
            m_publisherConfigurationFile = Utils.GetAbsoluteFilePath(
                PublisherConfigurationFileName,
                checkCurrentDirectory: true,
                createAlways: false);
            m_subscriberConfigurationFile = Utils.GetAbsoluteFilePath(
                SubscriberConfigurationFileName,
                checkCurrentDirectory: true,
                createAlways: false);
        }

        [Test(Description = "Validate transition of state Disabled_0 to Paused_1 on Publisher")]
        public void ValidateDisabled_0ToPause_1_Publisher()
        {
            ITelemetryContext telemetry = NUnitTelemetryContext.Create();
            using var uaPubSubApplication = UaPubSubApplication.Create(m_publisherConfigurationFile, telemetry);

            UaPubSubConfigurator configurator = uaPubSubApplication.UaPubSubConfigurator;

            // The hierarchy PubSub -> PubSubConnection -> PubSubWriterGroup -> DataSetWriter brought to [Disabled, Disabled, Disabled, Disabled]

            PubSubConfigurationDataType pubSub = uaPubSubApplication.UaPubSubConfigurator
                .PubSubConfiguration;
            PubSubConnectionDataType publisherConnection = uaPubSubApplication
                .UaPubSubConfigurator
                .PubSubConfiguration
                .Connections[0];
            WriterGroupDataType writerGroup = publisherConnection.WriterGroups[0];
            DataSetWriterDataType datasetWriter = writerGroup.DataSetWriters[0];

            configurator.Disable(pubSub);
            configurator.Disable(publisherConnection);
            configurator.Disable(writerGroup);
            configurator.Disable(datasetWriter);

            PubSubState psState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(pubSub);
            PubSubState conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            PubSubState wgState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(writerGroup);
            PubSubState dswState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(wgState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(dswState, Is.EqualTo(PubSubState.Disabled));

            // Bring connection to Enabled
            configurator.Enable(publisherConnection);

            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Paused));
            Assert.That(wgState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(dswState, Is.EqualTo(PubSubState.Disabled));

            // Bring writerGroup to Enabled
            configurator.Enable(writerGroup);

            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Paused));
            Assert.That(wgState, Is.EqualTo(PubSubState.Paused));
            Assert.That(dswState, Is.EqualTo(PubSubState.Disabled));

            // Bring datasetWriter to Enabled
            configurator.Enable(datasetWriter);

            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Paused));
            Assert.That(wgState, Is.EqualTo(PubSubState.Paused));
            Assert.That(dswState, Is.EqualTo(PubSubState.Paused));
        }

        [Test(
            Description = "Validate transition of state Disabled_0 to Operational_2 on Publisher")]
        public void ValidateDisabled_0ToOperational_2_Publisher()
        {
            ITelemetryContext telemetry = NUnitTelemetryContext.Create();
            using var uaPubSubApplication = UaPubSubApplication.Create(m_publisherConfigurationFile, telemetry);

            UaPubSubConfigurator configurator = uaPubSubApplication.UaPubSubConfigurator;

            // The hierarchy PubSub -> PubSubConnection -> PubSubWriterGroup -> DataSetWriter brought to [Disabled, Disabled, Disabled, Disabled]
            PubSubConfigurationDataType pubSub = uaPubSubApplication.UaPubSubConfigurator
                .PubSubConfiguration;
            PubSubConnectionDataType publisherConnection = uaPubSubApplication
                .UaPubSubConfigurator
                .PubSubConfiguration
                .Connections[0];
            WriterGroupDataType writerGroup = publisherConnection.WriterGroups[0];
            DataSetWriterDataType datasetWriter = writerGroup.DataSetWriters[0];

            configurator.Disable(pubSub);
            configurator.Disable(publisherConnection);
            configurator.Disable(writerGroup);
            configurator.Disable(datasetWriter);

            PubSubState psState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(pubSub);
            PubSubState conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            PubSubState wgState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(writerGroup);
            PubSubState dswState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(wgState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(dswState, Is.EqualTo(PubSubState.Disabled));

            // Bring PubSub to Enabled
            configurator.Enable(pubSub);
            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Operational));
            Assert.That(conState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(wgState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(dswState, Is.EqualTo(PubSubState.Disabled));

            // Bring publisherConnection to Enabled
            configurator.Enable(publisherConnection);
            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Operational));
            Assert.That(conState, Is.EqualTo(PubSubState.Operational));
            Assert.That(wgState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(dswState, Is.EqualTo(PubSubState.Disabled));

            // Bring writerGroup to Enabled
            configurator.Enable(writerGroup);
            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Operational));
            Assert.That(conState, Is.EqualTo(PubSubState.Operational));
            Assert.That(wgState, Is.EqualTo(PubSubState.Operational));
            Assert.That(dswState, Is.EqualTo(PubSubState.Disabled));

            // Bring datasetWriter to Enabled
            configurator.Enable(datasetWriter);
            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Operational));
            Assert.That(conState, Is.EqualTo(PubSubState.Operational));
            Assert.That(wgState, Is.EqualTo(PubSubState.Operational));
            Assert.That(dswState, Is.EqualTo(PubSubState.Operational));
        }

        [Test(Description = "Validate transition of state Paused_1 to Disabled_0 on Publisher")]
        public void ValidatePaused_1ToDisabled_0_Publisher()
        {
            ITelemetryContext telemetry = NUnitTelemetryContext.Create();
            using var uaPubSubApplication = UaPubSubApplication.Create(m_publisherConfigurationFile, telemetry);

            UaPubSubConfigurator configurator = uaPubSubApplication.UaPubSubConfigurator;

            // The hierarchy PubSub -> PubSubConnection -> PubSubWriterGroup -> DataSetWriter brought to [Disabled, Paused, Paused, Paused]
            PubSubConfigurationDataType pubSub = uaPubSubApplication.UaPubSubConfigurator
                .PubSubConfiguration;
            PubSubConnectionDataType publisherConnection = uaPubSubApplication
                .UaPubSubConfigurator
                .PubSubConfiguration
                .Connections[0];
            WriterGroupDataType writerGroup = publisherConnection.WriterGroups[0];
            DataSetWriterDataType datasetWriter = writerGroup.DataSetWriters[0];

            configurator.Disable(pubSub);
            configurator.Disable(publisherConnection);
            configurator.Disable(writerGroup);
            configurator.Disable(datasetWriter);

            configurator.Enable(publisherConnection);
            configurator.Enable(writerGroup);
            configurator.Enable(datasetWriter);

            PubSubState psState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(pubSub);
            PubSubState conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            PubSubState wgState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(writerGroup);
            PubSubState dswState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Paused));
            Assert.That(wgState, Is.EqualTo(PubSubState.Paused));
            Assert.That(dswState, Is.EqualTo(PubSubState.Paused));

            // Bring Connection to Disabled
            configurator.Disable(publisherConnection);

            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(wgState, Is.EqualTo(PubSubState.Paused));
            Assert.That(dswState, Is.EqualTo(PubSubState.Paused));

            // Bring writerGroup to Disabled
            configurator.Disable(writerGroup);

            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(wgState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(dswState, Is.EqualTo(PubSubState.Paused));

            // Bring datasetWriter to Disabled
            configurator.Disable(datasetWriter);

            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(wgState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(dswState, Is.EqualTo(PubSubState.Disabled));
        }

        [Test(Description = "Validate transition of state Paused_1 to Operational_2 on Publisher")]
        public void ValidatePaused_1ToOperational_2_Publisher()
        {
            ITelemetryContext telemetry = NUnitTelemetryContext.Create();
            using var uaPubSubApplication = UaPubSubApplication.Create(m_publisherConfigurationFile, telemetry);

            UaPubSubConfigurator configurator = uaPubSubApplication.UaPubSubConfigurator;

            // The hierarchy PubSub -> PubSubConnection -> PubSubWriterGroup -> DataSetWriter brought to [Disabled, Paused, Paused, Paused]

            PubSubConfigurationDataType pubSub = uaPubSubApplication.UaPubSubConfigurator
                .PubSubConfiguration;
            PubSubConnectionDataType publisherConnection = uaPubSubApplication
                .UaPubSubConfigurator
                .PubSubConfiguration
                .Connections[0];
            WriterGroupDataType writerGroup = publisherConnection.WriterGroups[0];
            DataSetWriterDataType datasetWriter = writerGroup.DataSetWriters[0];

            configurator.Disable(pubSub);
            configurator.Disable(publisherConnection);
            configurator.Disable(writerGroup);
            configurator.Disable(datasetWriter);

            configurator.Enable(publisherConnection);
            configurator.Enable(writerGroup);
            configurator.Enable(datasetWriter);

            PubSubState psState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(pubSub);
            PubSubState conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            PubSubState wgState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(writerGroup);
            PubSubState dswState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Paused));
            Assert.That(wgState, Is.EqualTo(PubSubState.Paused));
            Assert.That(dswState, Is.EqualTo(PubSubState.Paused));

            // Bring pubSub to Enabled
            configurator.Enable(pubSub);
            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Operational));
            Assert.That(conState, Is.EqualTo(PubSubState.Operational));
            Assert.That(wgState, Is.EqualTo(PubSubState.Operational));
            Assert.That(dswState, Is.EqualTo(PubSubState.Operational));
        }

        [Test(
            Description = "Validate transition of state Operational_2 to Disabled_0 on Publisher")]
        public void ValidateOperational_2ToDisabled_0_Publisher()
        {
            ITelemetryContext telemetry = NUnitTelemetryContext.Create();
            using var uaPubSubApplication = UaPubSubApplication.Create(m_publisherConfigurationFile, telemetry);

            UaPubSubConfigurator configurator = uaPubSubApplication.UaPubSubConfigurator;

            // The hierarchy PubSub -> PubSubConnection -> PubSubWriterGroup -> DataSetWriter brought to [Disabled, Disabled, Disabled, Disabled]
            PubSubConfigurationDataType pubSub = uaPubSubApplication.UaPubSubConfigurator
                .PubSubConfiguration;
            PubSubConnectionDataType publisherConnection = uaPubSubApplication
                .UaPubSubConfigurator
                .PubSubConfiguration
                .Connections[0];
            WriterGroupDataType writerGroup = publisherConnection.WriterGroups[0];
            DataSetWriterDataType datasetWriter = writerGroup.DataSetWriters[0];

            configurator.Disable(pubSub);
            configurator.Disable(publisherConnection);
            configurator.Disable(writerGroup);
            configurator.Disable(datasetWriter);

            PubSubState psState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(pubSub);
            PubSubState conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            PubSubState wgState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(writerGroup);
            PubSubState dswState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(wgState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(dswState, Is.EqualTo(PubSubState.Disabled));

            // The hierarchy PubSub -> PubSubConnection -> PubSubWriterGroup -> DataSetWriter brought to [Operational, Operational, Operational, Operational]
            configurator.Enable(pubSub);
            configurator.Enable(publisherConnection);
            configurator.Enable(writerGroup);
            configurator.Enable(datasetWriter);

            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Operational));
            Assert.That(conState, Is.EqualTo(PubSubState.Operational));
            Assert.That(wgState, Is.EqualTo(PubSubState.Operational));
            Assert.That(dswState, Is.EqualTo(PubSubState.Operational));

            // The hierarchy PubSub -> PubSubConnection -> PubSubWriterGroup -> DataSetWriter brought to [Disabled, Disabled, Disabled, Disabled]
            configurator.Disable(pubSub);
            configurator.Disable(publisherConnection);
            configurator.Disable(writerGroup);
            configurator.Disable(datasetWriter);

            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(wgState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(dswState, Is.EqualTo(PubSubState.Disabled));
        }

        [Test(Description = "Validate transition of state Operational_2 to Paused_1 on Publisher")]
        public void ValidateOperational_2ToPaused_1_Publisher()
        {
            ITelemetryContext telemetry = NUnitTelemetryContext.Create();
            using var uaPubSubApplication = UaPubSubApplication.Create(m_publisherConfigurationFile, telemetry);

            UaPubSubConfigurator configurator = uaPubSubApplication.UaPubSubConfigurator;

            // The hierarchy PubSub -> PubSubConnection -> PubSubWriterGroup -> DataSetWriter brought to [Disabled, Disabled, Disabled, Disabled]

            PubSubConfigurationDataType pubSub = uaPubSubApplication.UaPubSubConfigurator
                .PubSubConfiguration;
            PubSubConnectionDataType publisherConnection = uaPubSubApplication
                .UaPubSubConfigurator
                .PubSubConfiguration
                .Connections[0];
            WriterGroupDataType writerGroup = publisherConnection.WriterGroups[0];
            DataSetWriterDataType datasetWriter = writerGroup.DataSetWriters[0];

            configurator.Disable(pubSub);
            configurator.Disable(publisherConnection);
            configurator.Disable(writerGroup);
            configurator.Disable(datasetWriter);

            PubSubState psState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(pubSub);
            PubSubState conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            PubSubState wgState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(writerGroup);
            PubSubState dswState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(wgState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(dswState, Is.EqualTo(PubSubState.Disabled));

            // The hierarchy PubSub -> PubSubConnection -> PubSubWriterGroup -> DataSetWriter brought to [Operational, Operational, Operational, Operational]
            configurator.Enable(pubSub);
            configurator.Enable(publisherConnection);
            configurator.Enable(writerGroup);
            configurator.Enable(datasetWriter);

            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Operational));
            Assert.That(conState, Is.EqualTo(PubSubState.Operational));
            Assert.That(wgState, Is.EqualTo(PubSubState.Operational));
            Assert.That(dswState, Is.EqualTo(PubSubState.Operational));

            // The hierarchy PubSub -> PubSubConnection -> PubSubWriterGroup -> DataSetWriter brought to [Disabled, Pause, Pause, Pause]
            configurator.Disable(pubSub);
            psState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(pubSub);
            conState = uaPubSubApplication.UaPubSubConfigurator
                .FindStateForObject(publisherConnection);
            wgState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(writerGroup);
            dswState = uaPubSubApplication.UaPubSubConfigurator.FindStateForObject(datasetWriter);
            Assert.That(psState, Is.EqualTo(PubSubState.Disabled));
            Assert.That(conState, Is.EqualTo(PubSubState.Paused));
            Assert.That(wgState, Is.EqualTo(PubSubState.Paused));
            Assert.That(dswState, Is.EqualTo(PubSubState.Paused));
        }
    }
}