#region License
// Copyright (c) Jeremy Skinner (http://www.jeremyskinner.co.uk)
// 
// Licensed under the Apache License, Version 2.0 (the "License"); 
// you may not use this file except in compliance with the License. 
// You may obtain a copy of the License at 
// 
// http://www.apache.org/licenses/LICENSE-2.0 
// 
// Unless required by applicable law or agreed to in writing, software 
// distributed under the License is distributed on an "AS IS" BASIS, 
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
// See the License for the specific language governing permissions and 
// limitations under the License.
// 
// The latest version of this file can be found at https://github.com/jeremyskinner/FluentValidation
#endregion

namespace FluentValidation.Tests {
	using System;
	using System.Linq.Expressions;
	using Internal;
	using Xunit;

	
	public class ExtensionTester {
		[Fact]
		public void Should_extract_member_from_member_expression() {
			Expression<Func<Person, string>> expression = person => person.Surname;
			var member = expression.GetMember();
			member.Name.ShouldEqual("Surname");
		}

		[Fact]
		public void Should_return_null_for_non_member_expressions() {
			Expression<Func<Person, string>> expression = person => "Foo";
			expression.GetMember().ShouldBeNull();
		}

		[Fact]
		public void Should_split_pascal_cased_member_name() {
			string name = "DateOfBirth".SplitPascalCase();
			name.ShouldEqual("Date Of Birth");
		}

		[Fact]
		public void SplitPascalCase_should_return_null_when_input_is_null() {
			Extensions.SplitPascalCase(null).ShouldBeNull();
		}
	}
}