Add missing test (#759)

* Add missing test

* Cookies from headful now work in headless

Author: kblok

lib/PuppeteerSharp.Tests/PageTests/ExposeFunctionTests.cs

@@ -19,6 +19,16 @@ public async Task ShouldWork()
             Assert.Equal(36, result);
         }
 
+        [Fact]
+        public async Task ShouldBeCallableFromInsideEvaluateOnNewDocument()
+        {
+            var called = false;
+            await Page.ExposeFunctionAsync("woof", () => called = true);
+            await Page.EvaluateOnNewDocumentAsync("() => woof()");
+            await Page.ReloadAsync();
+            Assert.True(called);
+        }
+
         [Fact]
         public async Task ShouldSurviveNavigation()
         {

lib/PuppeteerSharp.Tests/PuppeteerTests/HeadfulTests.cs

@@ -57,7 +57,7 @@ public async Task ShouldHaveDefaultUrlWhenLaunchingBrowser()
             }
         }
 
-        [Fact(Skip = "Skipped in Puppeteer")]
+        [Fact]
         public async Task HeadlessShouldBeAbleToReadCookiesWrittenByHeadful()
         {
             using (var userDataDir = new TempDirectory())