Test coverage for custom add calls in an initialiser

Author: SteveWilkes

ReadableExpressions.UnitTests/WhenTranslatingMemberAccesses.cs

@@ -1,6 +1,7 @@
 namespace AgileObjects.ReadableExpressions.UnitTests
 {
     using System;
+    using System.Collections;
     using System.Collections.Generic;
     using System.Collections.ObjectModel;
     using System.Globalization;
@@ -326,6 +327,23 @@ public void ShouldIncludeRefParameterKeywords()
 
             Assert.AreEqual("ip.RefGet(3, ref value)", translated);
         }
+
+        [TestMethod]
+        public void ShouldTranslateACustomEnumerableAddInitialiser()
+        {
+            Expression<Func<int, int, int, CustomAdder>> customAdder =
+                (intOne, intTwo, intThree) => new CustomAdder { { intOne, intTwo, intThree } };
+
+            var translated = customAdder.Body.ToReadableString();
+
+            const string EXPECTED = @"
+new CustomAdder
+{
+    { intOne, intTwo, intThree }
+}";
+
+            Assert.AreEqual(EXPECTED.TrimStart(), translated);
+        }
     }
 
     #region Helper Classes
@@ -409,5 +427,17 @@ public static void DoSomething()
         }
     }
 
+    internal class CustomAdder : IEnumerable
+    {
+        public void Add(int intOne, int intTwo, int intThree)
+        {
+        }
+
+        public IEnumerator GetEnumerator()
+        {
+            throw new NotImplementedException();
+        }
+    }
+
     #endregion
 }

ReadableExpressions/Translators/InitialisationExpressionTranslator.Helpers.Member.cs

@@ -62,7 +62,7 @@ private string TranslateListBinding(MemberBinding binding, TranslationContext co
                     .Initializers
                     .Select(init => IsStandardAddMethod(init)
                         ? context.Translate(init.Arguments.First())
-                        : _methodCallTranslator.GetMethodCall(init.AddMethod, init.Arguments, context))
+                        : _methodCallTranslator.GetMethodCall(new BclMethodInfoWrapper(init.AddMethod), init.Arguments, context))
                     .ToArray();
 
                 return GetInitialisation(listBinding.Member.Name + " =", listInitialisers);

ReadableExpressions/Translators/MethodCallExpressionTranslator.cs

@@ -114,14 +114,6 @@ internal string GetMethodCall(
         }
 
         internal string GetMethodCall(
-            MethodInfo method,
-            IEnumerable<Expression> arguments,
-            TranslationContext context)
-        {
-            return GetMethodCall(new BclMethodInfoWrapper(method), arguments, context);
-        }
-
-        private string GetMethodCall(
             IMethodInfo method,
             IEnumerable<Expression> arguments,
             TranslationContext context)