[Test] public void AddRangeIfAbsentNopOnEmptyCollection()
{
var sut = new CopyOnWriteList <T>(Samples);
sut.AddRangeAbsent(new T[0]);
Assert.That(sut.Count, Is.EqualTo(SampleSize));
}
[Test] public void AddRangeIfAbsentAddOnlyThoseNotExist()
{
var sut = new CopyOnWriteList <T>(Samples);
var c = new[]
{
TestData <T> .M1,
TestData <T> .M2,
TestData <T> .One, // Will no add.
};
Assert.That(sut.AddRangeAbsent(c), Is.EqualTo(2));
Assert.That(sut.Count, Is.EqualTo(SampleSize + 2));
Assert.IsTrue(sut.Contains(TestData <T> .M1));
Assert.IsTrue(sut.Contains(TestData <T> .M2));
}