Add NamespaceKey tests

Remove code duplication

Author: Michael Ganss

XmlSchemaClassGenerator.Tests/NamespaceProviderTests.cs

@@ -45,5 +45,23 @@ [new NamespaceKey("x")] = "c",
             Assert.Equal("y", ns[new NamespaceKey("y")]);
             Assert.Throws<KeyNotFoundException>(() => ns[new NamespaceKey("z")]);
         }
+
+        [Fact]
+        public void NamespaceKeyComparableTest()
+        {
+            Assert.Equal(-1, new NamespaceKey((Uri)null).CompareTo(new NamespaceKey(new Uri("http://test"))));
+            Assert.Equal(1, new NamespaceKey(new Uri("http://test")).CompareTo(new NamespaceKey((Uri)null)));
+            Assert.NotEqual(0, new NamespaceKey(new Uri("http://test")).CompareTo(new NamespaceKey(new Uri("http://test2"))));
+            Assert.True(new NamespaceKey("http://test").Equals((object)new NamespaceKey("http://test")));
+            Assert.False(new NamespaceKey("http://test").Equals((object)null));
+            Assert.NotEqual(0, ((IComparable)new NamespaceKey("http://test")).CompareTo(null));
+            Assert.True(new NamespaceKey("http://test") == new NamespaceKey("http://test"));
+            Assert.True(((NamespaceKey)null) == ((NamespaceKey)null));
+            Assert.True(new NamespaceKey("http://test") > null);
+            Assert.False(new NamespaceKey("http://test") < null);
+            Assert.True(new NamespaceKey("http://test") >= null);
+            Assert.False(new NamespaceKey("http://test") <= null);
+            Assert.True(new NamespaceKey("http://test") != null);
+        }
     }
 }

XmlSchemaClassGenerator/NamespaceKey.cs

@@ -45,6 +45,8 @@ public bool Equals(NamespaceKey other)
 
         public int CompareTo(NamespaceKey other)
         {
+            if (other == null) return 1;
+
             if (Source == null && other.Source != null)
             {
                 return -1;
@@ -107,10 +109,18 @@ int IComparable.CompareTo(object obj)
         {
             return left.CompareTo(right) > 0;
         }
+        public static bool operator >=(NamespaceKey left, NamespaceKey right)
+        {
+            return left.CompareTo(right) >= 0;
+        }
         public static bool operator <(NamespaceKey left, NamespaceKey right)
         {
             return left.CompareTo(right) < 0;
         }
+        public static bool operator <=(NamespaceKey left, NamespaceKey right)
+        {
+            return left.CompareTo(right) <= 0;
+        }
         public static bool operator !=(NamespaceKey left, NamespaceKey right)
         {
             return !(left == right);

XmlSchemaClassGenerator/TypeModel.cs

@@ -1131,22 +1131,17 @@ public SimpleModel(GeneratorConfiguration configuration)
         public static string GetCollectionDefinitionName(string typeName, GeneratorConfiguration configuration)
         {
             var typeRef = new CodeTypeReference(configuration.CollectionType, configuration.CodeTypeReferenceOptions);
-            if (configuration.CollectionType.IsGenericTypeDefinition)
-            {
-                typeRef.TypeArguments.Add(typeName);
-            }
-            var typeOfExpr = new CodeTypeOfExpression(typeRef);
-            var writer = new System.IO.StringWriter();
-            CSharpProvider.GenerateCodeFromExpression(typeOfExpr, writer, new CodeGeneratorOptions());
-            var fullTypeName = writer.ToString();
-            Debug.Assert(fullTypeName.StartsWith("typeof(") && fullTypeName.EndsWith(")"));
-            fullTypeName = fullTypeName.Substring(7, fullTypeName.Length - 8);
-            return fullTypeName;
+            return GetFullTypeName(typeName, configuration, typeRef);
         }
 
         public static string GetCollectionImplementationName(string typeName, GeneratorConfiguration configuration)
         {
             var typeRef = new CodeTypeReference(configuration.CollectionImplementationType ?? configuration.CollectionType, configuration.CodeTypeReferenceOptions);
+            return GetFullTypeName(typeName, configuration, typeRef);
+        }
+
+        private static string GetFullTypeName(string typeName, GeneratorConfiguration configuration, CodeTypeReference typeRef)
+        {
             if (configuration.CollectionType.IsGenericTypeDefinition)
             {
                 typeRef.TypeArguments.Add(typeName);