Add code for #759

nsubstitute · Dec 23, 2023 · d88804d · d88804d
1 parent 3ce2d66
commit d88804d
Showing 1 changed file with 44 additions and 0 deletions.
diff --git a/tests/NSubstitute.Acceptance.Specs/FieldReports/Issue759_Event.cs b/tests/NSubstitute.Acceptance.Specs/FieldReports/Issue759_Event.cs
@@ -0,0 +1,44 @@
+using NUnit.Framework;
+using System;
+
+namespace NSubstitute.Acceptance.Specs.FieldReports
+{
+    public class Issue759_Event
+    {
+        public interface IChild
+        {
+            event EventHandler<EventArgs> Changed;
+            void Change();
+        }
+        public class Parent : IDisposable
+        {
+            private IChild m_Child;
+            public Parent(IChild child)
+            {
+                m_Child = child;
+                m_Child.Changed += Child_Changed;
+            }
+            public void Dispose()
+            {
+                m_Child.Changed -= Child_Changed;
+                m_Child = null;
+            }
+            private void Child_Changed(object sender, EventArgs args) { }
+            public void Change()
+            {
+                m_Child.Change();
+            }
+        }
+
+        [Test]
+        public void Test()
+        {
+            for (int i = 0; i < 10000000; i++)
+            {
+                var child = Substitute.For<IChild>();
+                var sut = new Parent(child);
+                sut.Dispose();
+            }
+        }
+    }
+}