public void RemoveCommonItems_When_common_and_sequence_becomes_empty()
{
int[] s1 = { 1, 2 };
int[] s2 = { 4, 2, 6, 8, 1 };
int[] s3 = { 10, 21, 2, 1 };
var res = LinqExtensionMethods.RemoveCommonItems(s1, s2, s3);
Assert.AreEqual(3, res.Length);
Assert.AreNotEqual(s1, res[0]);
Assert.AreNotEqual(s2, res[1]);
Assert.AreNotEqual(s3, res[2]);
Assert.IsTrue(res[0].SequenceEqual(new int[0]));
Assert.IsTrue(res[1].SequenceEqual(new[] { 4, 6, 8 }));
Assert.IsTrue(res[2].SequenceEqual(new[] { 10, 21 }));
}
public void RemoveCommonItems_When_no_common()
{
int[] s1 = { 1, 2 };
int[] s2 = { 4, 6, 8 };
int[] s3 = { 10, 21 };
var res = LinqExtensionMethods.RemoveCommonItems(s1, s2, s3);
Assert.AreEqual(3, res.Length);
Assert.AreNotEqual(s1, res[0]);
Assert.AreNotEqual(s2, res[1]);
Assert.AreNotEqual(s3, res[2]);
Assert.IsTrue(s1.SequenceEqual(res[0]));
Assert.IsTrue(s2.SequenceEqual(res[1]));
Assert.IsTrue(s3.SequenceEqual(res[2]));
}