System.Object.GetHashCode C# (CSharp) Method

    public virtual int GetHashCode()
    {
        return InternalGetHashCode(this);
    }

 public static void AssertEqualsHashCode(Object o, Object o2)
 {
     if (o.Equals(o2)) {
     if (!o2.Equals(o)) {
       Assert.Fail(
       String.Empty + o + " equals " + o2 + " but not vice versa");
     }
     // Test for the guarantee that equal objects
     // must have equal hash codes
     if (o2.GetHashCode() != o.GetHashCode()) {
       // Don't use Assert.AreEqual directly because it has
       // quite a lot of overhead
       Assert.Fail(
       String.Empty + o + " and " + o2 + " don't have equal hash codes");
     }
       } else {
     if (o2.Equals(o)) {
       Assert.Fail(String.Empty + o + " does not equal " + o2 +
     " but not vice versa");
     }
     // At least check that GetHashCode doesn't throw
     try {
      o.GetHashCode();
     } catch (Exception ex) {
     Assert.Fail(ex.ToString());
     throw new InvalidOperationException(String.Empty, ex);
     }
     try {
      o2.GetHashCode();
     } catch (Exception ex) {
     Assert.Fail(ex.ToString());
     throw new InvalidOperationException(String.Empty, ex);
     }
       }
 }