Implement AppMode tests (#340)

Author: kblok

lib/PuppeteerSharp.Tests/PuppeteerTests/AppModeTests.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Threading.Tasks;
+using Xunit;
+using Xunit.Abstractions;
+
+namespace PuppeteerSharp.Tests.PuppeteerTests
+{
+    [Collection("PuppeteerLoaderFixture collection")]
+    public class AppModeTests : PuppeteerBaseTest
+    {
+        public AppModeTests(ITestOutputHelper output) : base(output) { }
+
+        [Fact]
+        public async Task ShouldWork()
+        {
+            var options = TestConstants.DefaultBrowserOptions();
+            options.AppMode = true;
+
+            using (var browser = await Puppeteer.LaunchAsync(options, TestConstants.ChromiumRevision, TestConstants.LoggerFactory))
+            using (var page = await browser.NewPageAsync())
+            {
+                Assert.Equal(121, await page.EvaluateExpressionAsync<int>("11 * 11"));
+            }
+        }
+    }
+}

lib/PuppeteerSharp/LaunchOptions.cs

@@ -16,6 +16,10 @@ public class LaunchOptions : IBrowserOptions
         /// <summary>
         /// If set to true, sets Headless = false, otherwise, enables automation.
         /// </summary>
+        /// <remarks>
+        /// AppMode won't neither add the argument '--remote-debugging-pipe' nor implement Pipes
+        /// due to limitations in .NET see <see href="https://github.com/dotnet/corefx/issues/30575"/> 
+        /// </remarks>
         public bool AppMode { get; set; }
 
         /// <summary>
@@ -73,4 +77,4 @@ public class LaunchOptions : IBrowserOptions
         /// </summary>
         public bool LogProcess { get; set; }
     }
-}
+}