// Constructors
/// <summary>
/// Initializes a new instance of this type.
/// </summary>
/// <param name="provider">Comparer provider this comparer is bound to.</param>
/// <param name="comparisonRules">Comparison rules.</param>
public WrappingComparer(IComparerProvider provider, ComparisonRules comparisonRules)
: base(provider, comparisonRules)
{
ArgumentValidator.EnsureArgumentNotNull(provider, "provider");
BaseComparer1 = provider.GetComparer <TBase1>().ApplyRules(comparisonRules[0]);
BaseComparer2 = provider.GetComparer <TBase2>().ApplyRules(comparisonRules[1]);
}
private void Test <T>(IComparerProvider <T> builder)
where T : INestedObject
{
var comparer = builder.GetComparer();
for (var i = 0; i < 10; i++)
{
var x = (T)(object)_fixture.Create <SealedNestedObject>();
var y = (T)(object)_fixture.Create <SealedNestedObject>();
var expected = string.CompareOrdinal(x.Text, y.Text).Normalize();
var actual = comparer.Compare(x, y).Normalize();
actual.Should().Be(expected, $"\nx: {x.ToJson()},\ny: {y.ToJson()}");
}
}
private static void Test <T>(IComparerProvider comparersBuilder, IComparer <T> referenceComparer, int times, int count)
{
if (referenceComparer == null)
{
referenceComparer = Helper.DefaultComparer <T>();
}
var typedComparer = comparersBuilder.GetComparer <T>();
Parallel.Invoke(
() => {
Comparison_of_null_with_object_produces_negative_value(referenceComparer, typedComparer);
Comparison_of_object_with_null_produces_positive_value(referenceComparer, typedComparer);
Comparison_when_both_null_produces_0(referenceComparer, typedComparer);
Comparison_with_itself_produces_0(referenceComparer, typedComparer);
Comparison_with_same_produces_0(referenceComparer, typedComparer);
},
() => Comparisons_work_identical(referenceComparer, typedComparer, times),
() => Sorting_must_work_the_same_as_for_reference_comparer(referenceComparer, typedComparer, count),
() => Mutate_class_members_and_test_comparison(referenceComparer, typedComparer)
);
}