internal bool ObjectsEqual <TExpected, TActual>(TExpected expected, TActual actual, ref Tolerance tolerance)
{
FailurePoints = new FailurePointList();
if (expected == null && actual == null)
{
return(true);
}
if (expected == null || actual == null)
{
return(false);
}
if (object.ReferenceEquals(expected, actual))
{
return(true);
}
EqualityAdapter externalComparer = GetExternalComparer(expected, actual);
if (externalComparer != null)
{
return(externalComparer.AreEqual(expected, actual));
}
ITCLiteEqualityComparer comparer = GetEqualityComparer(expected, actual);
if (comparer != null)
{
return(comparer.AreEqual(expected, actual, ref tolerance));
}
return(expected.Equals(actual));
}
/// <summary>
/// Flag the constraint to use the supplied predicate function
/// </summary>
/// <param name="comparison">The comparison function to use.</param>
/// <returns>Self.</returns>
public CollectionEquivalentConstraint Using <TActual, TExpected>(Func <TActual, TExpected, bool> comparison)
{
base.Using(EqualityAdapter.For(comparison));
return(this);
}
/// <summary>
/// Flag the constraint to use the supplied IEqualityComparer object.
/// </summary>
/// <param name="comparer">The IComparer object to use.</param>
/// <returns>Self.</returns>
public EqualConstraint <TExpected> Using <T>(IEqualityComparer <T> comparer)
{
_comparer.ExternalComparers.Add(EqualityAdapter.For(comparer));
return(this);
}
/// <summary>
/// Flag the constraint to use the supplied Comparison object.
/// </summary>
/// <param name="comparer">The IComparer object to use.</param>
/// <returns>Self.</returns>
public CollectionItemsEqualConstraint Using <T>(Comparison <T> comparer)
{
return(Using(EqualityAdapter.For(comparer)));
}
/// <summary>
/// Flag the constraint to use the supplied EqualityAdapter.
/// NOTE: For internal use only.
/// </summary>
/// <param name="adapter">The EqualityAdapter to use.</param>
/// <returns>Self.</returns>
internal CollectionItemsEqualConstraint Using(EqualityAdapter adapter)
{
_comparer.ExternalComparers.Add(adapter);
return(this);
}
/// <summary>
/// Flag the constraint to use the supplied IEqualityComparer object.
/// </summary>
/// <param name="comparer">The IComparer object to use.</param>
/// <returns>Self.</returns>
public CollectionItemsEqualConstraint Using(IEqualityComparer comparer)
{
return(Using(EqualityAdapter.For(comparer)));
}