Some handy Create file templates for Unity 5.2

92-C# Class-NewClass.cs.txt

namespace ExampleNamespace
{
	public class #SCRIPTNAME#
	{
	}
}

93-C# Interface-INewInterface.cs.txt

namespace ExampleNamespace
{
	public interface #SCRIPTNAME#
	{
	}
}

94-C# Test-NewTest.cs.txt

using NUnit.Framework;

namespace ExampleNamespace
{
	[TestFixture]
	internal class #SCRIPTNAME#
	{
		[TestFixtureSetUp]
		public void SetUpFixture()
		{
		}

		[TestFixtureTearDown]
		public void TearDownFixture()
		{
		}

		[SetUp]
		public void SetUp()
		{
		}

		[TearDown]
		public void TearDown()
		{
		}

		[TestCase]
		public void NewTest()
		{
		}
	}
}

README.txt

Drop these in:
/Applications/Unity.app/Contents/Resources/ScriptTemplates (Mac)
Program Files (x86)/Unity/Editor/Data/Resources/ScriptTemplates (Win)
/opt/Unity/Editor/Data/Resources/ScriptTemplates (Linux)
and restart Unity.