UA-.NETStandard/tests/Opc.Ua.Di.Tests/DeviceBuilderSupportInfoExtensionsTests.cs

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using System.Threading.Tasks;
using NUnit.Framework;
using Opc.Ua.Di.Server.Builders;

namespace Opc.Ua.Di.Tests
{
    /// <summary>
    /// Tests for the §5.15 ISupportInfoType extension on
    /// <see cref="IDeviceBuilder{TDevice}"/>.
    /// </summary>
    [TestFixture]
    [Category("DI")]
    [Category("DeviceBuilder")]
    public sealed class DeviceBuilderSupportInfoExtensionsTests
    {
        private DiServerFixture m_fixture = null!;

        [OneTimeSetUp]
        public async Task SetUpAsync()
        {
            m_fixture = new DiServerFixture();
            await m_fixture.StartAsync().ConfigureAwait(false);
        }

        [OneTimeTearDown]
        public async Task TearDownAsync()
        {
            await m_fixture.DisposeAsync().ConfigureAwait(false);
        }

        [Test]
        public async Task WithSupportInfoCreatesISupportInfoChild()
        {
            IDeviceBuilder<DeviceState> device = await m_fixture.Manager
                .CreateDeviceAsync(new QualifiedName(
                    "SupportInfoDevice1",
                    m_fixture.Manager.DiNamespaceIndex))
                .ConfigureAwait(false);

            ISupportInfoState? captured = null;
            device.WithSupportInfo(info => captured = info);

            Assert.That(captured, Is.Not.Null);
            Assert.That(captured!.BrowseName.Name, Is.EqualTo("SupportInfo"));
            Assert.That(captured.Parent, Is.SameAs(device.Device));
        }

        [Test]
        public async Task WithSupportInfoIsIdempotent()
        {
            IDeviceBuilder<DeviceState> device = await m_fixture.Manager
                .CreateDeviceAsync(new QualifiedName(
                    "SupportInfoDevice2",
                    m_fixture.Manager.DiNamespaceIndex))
                .ConfigureAwait(false);

            ISupportInfoState? first = null;
            device.WithSupportInfo(info => first = info);

            ISupportInfoState? second = null;
            device.WithSupportInfo(info => second = info);

            Assert.That(second, Is.SameAs(first));
        }

        [Test]
        public async Task WithSupportInfoRegistersChildWithManager()
        {
            IDeviceBuilder<DeviceState> device = await m_fixture.Manager
                .CreateDeviceAsync(new QualifiedName(
                    "SupportInfoDevice3",
                    m_fixture.Manager.DiNamespaceIndex))
                .ConfigureAwait(false);

            ISupportInfoState? captured = null;
            device.WithSupportInfo(info => captured = info);

            NodeState? found = m_fixture.Manager.FindPredefinedNode(captured!.NodeId);
            Assert.That(found, Is.SameAs(captured));
        }

        [Test]
        public async Task WithSupportInfoAcceptsCustomConfiguration()
        {
            IDeviceBuilder<DeviceState> device = await m_fixture.Manager
                .CreateDeviceAsync(new QualifiedName(
                    "SupportInfoDevice4",
                    m_fixture.Manager.DiNamespaceIndex))
                .ConfigureAwait(false);

            bool invoked = false;
            device.WithSupportInfo(info =>
            {
                invoked = true;
                info.Description = new LocalizedText("Custom support info");
            });

            Assert.That(invoked, Is.True);
        }

        [Test]
        public void WithSupportInfoWithNullDeviceThrows()
        {
            Assert.That(() =>
                DeviceBuilderSupportInfoExtensions.WithSupportInfo<DeviceState>(
                    null!, _ => { }),
                Throws.ArgumentNullException);
        }

        [Test]
        public async Task WithSupportInfoWithNullConfigureThrows()
        {
            IDeviceBuilder<DeviceState> device = await m_fixture.Manager
                .CreateDeviceAsync(new QualifiedName(
                    "SupportInfoDeviceArg",
                    m_fixture.Manager.DiNamespaceIndex))
                .ConfigureAwait(false);

            Assert.That(() => device.WithSupportInfo(null!),
                Throws.ArgumentNullException);
        }
    }
}