First Unit Test - after

gistfile1.cs

    [TestClass]
    public class ClaimEqualityComparerTest : BaseTest
    {
        [TestMethod]
        public void ClaimsAreEqual()
        {
            var identical = new Claim { Type = "Type", Value = "Value" };
            var sameType = new Claim { Type = "TYPE", Value = "Value" };
            AssertEquality(true, identical, sameType);
        }

        [TestMethod]
        public void ClaimsAreNotEqual()
        {
            var differentValue = new Claim { Type = "Type", Value = "VALUE" };
            var nullType = new Claim { Type = null, Value = "Value" };
            var emptyType = new Claim { Type = "", Value = "Value" };
            AssertEquality(false, differentValue, nullType, emptyType, null);
        }
        
        [TestMethod]
        public void NullTypesDontMatch()
        {
            var nullType = new Claim { Type = null, Value = "Value" };
            AssertEquality(nullType, false, nullType );
            var emptyType = new Claim { Type = "", Value = "Value" };
            AssertEquality(emptyType, false, emptyType);
        }

        [TestMethod]
        public void EmptyValueDoMatch()
        {
            var emptyValue = new Claim { Type = "Type", Value = "" };
            AssertEquality(emptyValue, true, emptyValue);
            var nullValue = new Claim { Type = "Type", Value = null };
            AssertEquality(nullValue, true, nullValue);
        }

        private static void AssertEquality(bool expected, params Claim[] cases)
        {
            var master = new Claim { Type = "Type", Value = "Value" };
            AssertEquality(master, expected, cases);
        }

        private static void AssertEquality(Claim master, bool expected, params Claim[] cases)
        {
            var comparator = new ClaimEqualityComparer();
            foreach (var c in cases)
            {
                comparator.Equals(master, c).Should().Be(expected, because:string.Format("[master,case] = [{0},{1}]", master, c));
                comparator.Equals(c, master).Should().Be(expected);
            }
        }
    }