IClientWebSocket builder

SystemExtensions.DependencyInjection.Tests/WebSockets/ClientWebSocketBuilderTests.cs

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+using FluentAssertions;
+using global::SystemExtensions.NetStandard.DependencyInjection.Tests.Http.Models;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using NSubstitute;
+using System;
+using System.Extensions;
+using System.Linq;
+using System.Net.Http;
+using System.Net.WebSockets;
+using System.Threading.Tasks;
+
+namespace SystemExtensions.NetStandard.DependencyInjection.Tests.WebSockets;
+[TestClass]
+public sealed class HttpClientBuilderTests
+{
+    private readonly ClientWebSocketBuilder<object> clientWebSocketBuilder;
+    private readonly IServiceCollection serviceProducerMock = Substitute.For<IServiceCollection>();
+
+    public HttpClientBuilderTests()
+    {
+        this.clientWebSocketBuilder = new ClientWebSocketBuilder<object>(this.serviceProducerMock);
+    }
+
+    [TestMethod]
+    public void Constructor_NullServiceProducer_Throws()
+    {
+        var action = () => new ClientWebSocketBuilder<object>(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void WithInnerWebSocket_NullHandler_Throws()
+    {
+        var action = () => this.clientWebSocketBuilder.WithInnerWebSocket(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void WIthInnerWebSocketFactory_NullBaseAddress_Throws()
+    {
+        var action = () => this.clientWebSocketBuilder.WithInnerWebSocketFactory(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void Build_ReturnsServiceProducer()
+    {
+        var producer = this.clientWebSocketBuilder.Build();
+
+        producer.Should().BeEquivalentTo(this.serviceProducerMock);
+    }
+
+    [TestMethod]
+    public async Task ClientWebSocketBuilder_RegistersClientCorrectly_IServiceProviderReturnsExpected()
+    {
+        var container = new ServiceCollection();
+        var innerWebSocket = new ClientWebSocket();
+        container.RegisterClientWebSocket<object>()
+            .WithInnerWebSocket(innerWebSocket)
+            .Build();
+
+        var di = container.BuildServiceProvider();
+        var client = di.GetService<IClientWebSocket<object>>();
+        client.Should().NotBeNull();
+    }
+}