Try to fix CSS coverage flakes on win (#626)

Author: kblok

lib/PuppeteerSharp.Tests/JSCoverageTests/JSCoverageTests.cs

@@ -20,7 +20,7 @@ public JSCoverageTests(ITestOutputHelper output) : base(output)
         public async Task ShouldWork()
         {
             await Page.Coverage.StartJSCoverageAsync();
-            await Page.GoToAsync(TestConstants.ServerUrl + "/jscoverage/simple.html");
+            await Page.GoToAsync(TestConstants.ServerUrl + "/jscoverage/simple.html", WaitUntilNavigation.Networkidle0);
             var coverage = await Page.Coverage.StopJSCoverageAsync();
             Assert.Single(coverage);
             Assert.Contains("/jscoverage/simple.html", coverage[0].Url);

lib/PuppeteerSharp/Page.cs

@@ -762,6 +762,16 @@ await Task.WhenAll(
         public Task<Response> GoToAsync(string url, int? timeout = null, WaitUntilNavigation[] waitUntil = null)
             => GoToAsync(url, new NavigationOptions { Timeout = timeout, WaitUntil = waitUntil });
 
+        /// <summary>
+        /// Navigates to an url
+        /// </summary>
+        /// <param name="url">URL to navigate page to. The url should include scheme, e.g. https://.</param>
+        /// <param name="waitUntil">When to consider navigation succeeded.
+        /// <returns>Task which resolves to the main resource response. In case of multiple redirects, the navigation will resolve with the response of the last redirect</returns>
+        /// <seealso cref="GoToAsync(string, NavigationOptions)"/>
+        public Task<Response> GoToAsync(string url, WaitUntilNavigation waitUntil)
+            => GoToAsync(url, new NavigationOptions { WaitUntil = new[] { waitUntil } });
+
         /// <summary>
         /// generates a pdf of the page with <see cref="MediaType.Print"/> css media. To generate a pdf with <see cref="MediaType.Screen"/> media call <see cref="EmulateMediaAsync(MediaType)"/> with <see cref="MediaType.Screen"/>
         /// </summary>