From 74deb4669e2b4a624053cc8baba67f1d856fe371 Mon Sep 17 00:00:00 2001
From: Meir Blachman <meirblachman@gmail.com>
Date: Sat, 9 Feb 2019 15:04:27 +0200
Subject: [PATCH] Add test for waitForFunction with cross-process navigation
 (#909)

* Add test for waitForFunction with cross-process navigation

* fixed test
---
 .../FrameTests/WaitForFunctionTests.cs          | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/lib/PuppeteerSharp.Tests/FrameTests/WaitForFunctionTests.cs b/lib/PuppeteerSharp.Tests/FrameTests/WaitForFunctionTests.cs
index ced1bf1c9..94461afa1 100644
--- a/lib/PuppeteerSharp.Tests/FrameTests/WaitForFunctionTests.cs
+++ b/lib/PuppeteerSharp.Tests/FrameTests/WaitForFunctionTests.cs
@@ -128,5 +128,22 @@ public async Task ShouldDisableTimeoutWhenItsSetTo0()
             await Page.EvaluateExpressionAsync("window.__injected = true");
             await watchdog;
         }
+
+        [Fact]
+        public async Task ShouldSurviveCrossProcessNavigation()
+        {
+            var fooFound = false;
+            var waitForFunction = Page.WaitForExpressionAsync("window.__FOO === 1")
+                .ContinueWith(_ => fooFound = true);
+            await Page.GoToAsync(TestConstants.EmptyPage);
+            Assert.False(fooFound);
+            await Page.ReloadAsync();
+            Assert.False(fooFound);
+            await Page.GoToAsync(TestConstants.CrossProcessUrl + "/grid.html");
+            Assert.False(fooFound);
+            await Page.EvaluateExpressionAsync("window.__FOO = 1");
+            await waitForFunction;
+            Assert.True(fooFound);
+        }
     }
 }
\ No newline at end of file