fix Discovery-Test

The Discovery_DiscoversAnnotatedTestMethodsInGivenTestModule test relies
on CodeModule Target Equality. Our mock always initializes the checked
Targets to null, though. Accordingly we override Equality to return
something that's not always true.

Author: Vogel612

RubberduckTests/Mocks/MockProjectBuilder.cs

@@ -250,11 +250,10 @@ private Mock<ICodeModule> CreateCodeModuleMock(string name, string content, Sele
             var codePane = CreateCodePaneMock(name, selection, component);
             codePane.SetupGet(m => m.VBE).Returns(_getVbe);
 
-            var result = CreateCodeModuleMock(content);
+            var result = CreateCodeModuleMock(content, name);
             result.SetupGet(m => m.VBE).Returns(_getVbe);
             result.SetupGet(m => m.Parent).Returns(() => component.Object);
             result.SetupGet(m => m.CodePane).Returns(() => codePane.Object);
-            result.SetupProperty(m => m.Name, name);
 
             codePane.SetupGet(m => m.CodeModule).Returns(() => result.Object);
 
@@ -267,7 +266,7 @@ private Mock<ICodeModule> CreateCodeModuleMock(string name, string content, Sele
             Tokens.Sub + ' ', Tokens.Function + ' ', Tokens.Property + ' '
         };
 
-        private Mock<ICodeModule> CreateCodeModuleMock(string content)
+        private Mock<ICodeModule> CreateCodeModuleMock(string content, string name)
         {
             var lines = content.Split(new[] { Environment.NewLine }, StringSplitOptions.None).ToList();
 
@@ -312,8 +311,10 @@ private Mock<ICodeModule> CreateCodeModuleMock(string content)
                     lines.AddRange(newLine.Split(new[] { Environment.NewLine }, StringSplitOptions.None));
                 });
 
+            codeModule.SetupProperty(m => m.Name, name);
+
             codeModule.Setup(m => m.Equals(It.IsAny<ICodeModule>()))
-                .Returns((ICodeModule other) => ReferenceEquals(codeModule.Object.Target, other.Target));
+                .Returns((ICodeModule other) => name.Equals(other.Name) && content.Equals(other.Content()));
             codeModule.Setup(m => m.GetHashCode()).Returns(() => codeModule.Object.Target.GetHashCode());
 
             return codeModule;