Fix test failures in Release mode

diff --git a/Xamarin.Forms.Core.UnitTests/MessagingCenterTests.cs b/Xamarin.Forms.Core.UnitTests/MessagingCenterTests.cs
index 12f2fea..ae16fce 100644 (file)
--- a/Xamarin.Forms.Core.UnitTests/MessagingCenterTests.cs
+++ b/Xamarin.Forms.Core.UnitTests/MessagingCenterTests.cs
@@ -6,6 +6,8 @@ namespace Xamarin.Forms.Core.UnitTests
        [TestFixture]
        public class MessagingCenterTests : BaseTestFixture
        {
+               TestSubcriber _subscriber;
+
                [Test]
                public void SingleSubscriber ()
                {
@@ -285,9 +287,9 @@ namespace Xamarin.Forms.Core.UnitTests
                {
                        int i = 4;
 
-                       var subscriber = new TestSubcriber();
+                       _subscriber = new TestSubcriber(); // Using a class member so it doesn't get optimized away in Release build
 
-                       MessagingCenter.Subscribe<TestPublisher>(subscriber, "test", p => MessagingCenterTestsCallbackSource.Increment(ref i));
+                       MessagingCenter.Subscribe<TestPublisher>(_subscriber, "test", p => MessagingCenterTestsCallbackSource.Increment(ref i));
 
                        GC.Collect();
                        GC.WaitForPendingFinalizers();
@@ -295,7 +297,7 @@ namespace Xamarin.Forms.Core.UnitTests
                        var pub = new TestPublisher();
                        pub.Test();
 
-                       Assert.IsTrue(i == 5, "The static method should have incremented 'i'"); 
+                       Assert.IsTrue(i == 5, "The static method should have incremented 'i'");
                }
 
                [Test]
@@ -303,10 +305,10 @@ namespace Xamarin.Forms.Core.UnitTests
                {
                        var success = false;
 
-                       var subscriber = new TestSubcriber();
-                       
+                       _subscriber = new TestSubcriber(); // Using a class member so it doesn't get optimized away in Release build
+
                        var source = new MessagingCenterTestsCallbackSource();
-                       MessagingCenter.Subscribe<TestPublisher>(subscriber, "test", p => source.SuccessCallback(ref success));
+                       MessagingCenter.Subscribe<TestPublisher>(_subscriber, "test", p => source.SuccessCallback(ref success));
                        
                        GC.Collect();
                        GC.WaitForPendingFinalizers();