test: 更新单元测试

Author: ArgoZhang

test/UnitTest/Services/VideoDeviceTest.cs

@@ -27,6 +27,7 @@ public async Task Open_Ok()
     {
         Context.JSInterop.Setup<string?>("getPreviewUrl").SetResult("blob:https://test-preview");
         Context.JSInterop.Setup<bool>("open", _ => true).SetResult(true);
+        Context.JSInterop.Setup<bool>("close", _ => true).SetResult(true);
 
         var service = Context.Services.GetRequiredService<IVideoDevice>();
         var options = new MediaTrackConstraints()
@@ -40,7 +41,8 @@ public async Task Open_Ok()
         var open = await service.Open(options);
         Assert.True(open);
 
-        await service.Close(".bb-video");
+        var close = await service.Close(".bb-video");
+        Assert.True(close);
 
         Assert.Equal("test-device-id", options.DeviceId);
         Assert.Equal("user", options.FacingMode);