Add Browser.IsConnected (#1131)

* Add Browser.IsConnected

* Remove await

Author: kblok

lib/PuppeteerSharp.Tests/BrowserTests/IsConnectedTests.cs

@@ -0,0 +1,26 @@
+using System.Threading.Tasks;
+using Xunit;
+using Xunit.Abstractions;
+
+namespace PuppeteerSharp.Tests.BrowserTests
+{
+    [Collection("PuppeteerLoaderFixture collection")]
+    public class IsConnectedTests : PuppeteerBrowserBaseTest
+    {
+        public IsConnectedTests(ITestOutputHelper output) : base(output)
+        {
+        }
+
+        [Fact]
+        public async Task ShouldSetTheBrowserConnectedState()
+        {
+            var newBrowser = await Puppeteer.ConnectAsync(new ConnectOptions
+            {
+                BrowserWSEndpoint = Browser.WebSocketEndpoint
+            });
+            Assert.True(newBrowser.IsConnected);
+            newBrowser.Disconnect();
+            Assert.False(newBrowser.IsConnected);
+        }
+    }
+}

lib/PuppeteerSharp/Browser.cs

@@ -165,7 +165,10 @@ public bool IsClosed
         /// Dafault wait time in milliseconds. Defaults to 30 seconds.
         /// </summary>
         public int DefaultWaitForTimeout { get; set; } = Puppeteer.DefaultTimeout;
-
+        /// <summary>
+        /// Indicates that the browser is connected.
+        /// </summary>
+        public bool IsConnected => !Connection.IsClosed;
         #endregion
 
         #region Public Methods