Allow calls to faked abstract methods when using callsBaseMethods

src/Autofac.Extras.FakeItEasy/FakeRegistrationHandler.cs

@@ -1,5 +1,5 @@
 // This software is part of the Autofac IoC container
-// Copyright (c) 2007 - 2008 Autofac Contributors
+// Copyright (c) 2007 - 2018 Autofac Contributors
 // http://autofac.org
 //
 // Permission is hereby granted, free of charge, to any person
@@ -103,26 +103,24 @@ public IEnumerable<IComponentRegistration> RegistrationsFor(
         /// <returns>A fake object.</returns>
         private object CreateFake(TypedService typedService)
         {
-            var fake = Create.Fake(typedService.ServiceType, this.ApplyOptions);
-
-            if (this._callsBaseMethods)
-            {
-                A.CallTo(fake).CallsBaseMethod();
-            }
-
-            return fake;
+            return Create.Fake(typedService.ServiceType, this.ApplyOptions);
         }
 
         private void ApplyOptions(IFakeOptions options)
         {
             if (this._strict)
             {
-                options.Strict();
+                options = options.Strict();
             }
 
             if (this._configureFake != null)
             {
-                options.ConfigureFake(x => this._configureFake(x));
+                options = options.ConfigureFake(x => this._configureFake(x));
+            }
+
+            if (this._callsBaseMethods)
+            {
+                options.CallsBaseMethods();
             }
         }
     }

test/Autofac.Extras.FakeItEasy.Test/AutoFakeFixture.cs

@@ -89,6 +89,16 @@ public void CanResolveFakesWhichCallsBaseMethods()
             }
         }
 
+        [Fact]
+        public void CanResolveFakesWhichCallsBaseMethodsAndInvokeAbstractMethod()
+        {
+            using (var fake = new AutoFake(callsBaseMethods: true))
+            {
+                var bar = fake.Resolve<Bar>();
+                bar.GoAbstractly();
+            }
+        }
+
         [Fact]
         public void CanResolveFakesWhichInvokeActionsWhenResolved()
         {
@@ -137,6 +147,49 @@ public void ProvidesInstances()
             }
         }
 
+        [Fact]
+        public void CallsBaseMethodsOverridesStrict()
+        {
+            // A characterization test, intended to detect accidental changes in behavior.
+            // This is an odd situation, since specifying both strict and callsBaseMethods only makes
+            // sense when there are concrete methods on the fake that we want to be executed, but we
+            // want to reject the invocation of any methods that are left abstract on the faked type.
+            using (var fake = new AutoFake(callsBaseMethods: true, strict: true))
+            {
+                var bar = fake.Resolve<Bar>();
+                bar.Go();
+                Assert.True(bar.Gone);
+            }
+        }
+
+        [Fact]
+        public void CallsBaseMethodsOverridesConfigureFake()
+        {
+            // A characterization test, intended to detect accidental changes in behavior.
+            // Since callsBaseMethods applies globally and configureFake can affect individual
+            // members, having configureFake override callsBaseMethods may be preferred.
+            using (var fake = new AutoFake(
+                callsBaseMethods: true,
+                configureFake: f => A.CallTo(() => ((Bar)f).Go()).DoesNothing()))
+            {
+                var bar = fake.Resolve<Bar>();
+                bar.Go();
+                Assert.True(bar.Gone);
+            }
+        }
+
+        [Fact]
+        public void ConfigureFakeOverridesStrict()
+        {
+            using (var fake = new AutoFake(
+                strict: true,
+                configureFake: f => A.CallTo(() => ((Bar)f).Go()).DoesNothing()))
+            {
+                var bar = fake.Resolve<Bar>();
+                bar.Go();
+            }
+        }
+
         public abstract class Bar : IBar
         {
             private bool _gone;
@@ -155,6 +208,8 @@ public IBar Spawn()
             {
                 throw new NotImplementedException();
             }
+
+            public abstract void GoAbstractly();
         }
 
         public class Baz : IBaz