A:初版

test/NetClient.Test/Tests/NamedClientFactoryTests.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Net;
+using System.Threading.Tasks;
+using Microsoft.Extensions.DependencyInjection;
+using NetClient.Abstractions;
+using NetClient.DependencyInjection;
+
+namespace NetClient.Test.Tests;
+
+[TestClass]
+public class NamedClientFactoryTests
+{
+    [TestMethod]
+    public async Task Factory_Creates_Named_Clients_With_Different_Configs()
+    {
+        var services = new ServiceCollection();
+
+        services.AddNamedNetClient("catalog", opt =>
+        {
+            opt.BaseAddress = new Uri("https://catalog.test");
+        }).ConfigurePrimaryHttpMessageHandler(() => new TestDoubles.TestHttpMessageHandler(req =>
+        {
+            StringAssert.StartsWith(req.RequestUri!.AbsoluteUri, "https://catalog.test");
+            return Task.FromResult(TestDoubles.TestHttpMessageHandler.Text(HttpStatusCode.OK, "catalog"));
+        }));
+
+        services.AddNamedNetClient("order", opt =>
+        {
+            opt.BaseAddress = new Uri("https://order.test");
+        }).ConfigurePrimaryHttpMessageHandler(() => new TestDoubles.TestHttpMessageHandler(req =>
+        {
+            StringAssert.StartsWith(req.RequestUri!.AbsoluteUri, "https://order.test");
+            return Task.FromResult(TestDoubles.TestHttpMessageHandler.Text(HttpStatusCode.OK, "order"));
+        }));
+
+        var sp = services.BuildServiceProvider();
+        var factory = sp.GetRequiredService<INetClientFactory>();
+
+        var c = factory.Create("catalog");
+        var o = factory.Create("order");
+
+        var cRes = await c.GetStringAsync("/ping");
+        var oRes = await o.GetStringAsync("/ping");
+
+        Assert.AreEqual("catalog", cRes);
+        Assert.AreEqual("order", oRes);
+    }
+}
+