test: 增加单元测试

Author: ArgoZhang

test/UnitTest/Components/NetworkMonitorIndicatorTest.cs

@@ -0,0 +1,31 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the Apache 2.0 License
+// See the LICENSE file in the project root for more information.
+// Maintainer: Argo Zhang([email protected]) Website: https://www.blazor.zone
+
+namespace UnitTest.Components;
+
+public class NetworkMonitorIndicatorTest : BootstrapBlazorTestBase
+{
+    [Fact]
+    public async Task NetworkMonitorIndicator_Ok()
+    {
+        var cut = Context.RenderComponent<NetworkMonitorIndicator>(pb =>
+        {
+            pb.Add(a => a.PopoverPlacement, Placement.Top);
+        });
+
+        var com = cut.FindComponent<NetworkMonitor>();
+        await cut.InvokeAsync(() => com.Instance.TriggerNetworkStateChanged(new NetworkMonitorState
+        {
+            IsOnline = true,
+            NetworkType = "4g",
+            Downlink = 10.0,
+            RTT = 50
+        }));
+        Assert.DoesNotContain("offline", cut.Markup);
+
+        await cut.InvokeAsync(() => com.Instance.TriggerOnlineStateChanged(false));
+        Assert.DoesNotContain("offline", cut.Markup);
+    }
+}