public void IndexOfAny () { Assert.AreEqual (2, new[]{0,1,2}.IndexOfAny (2, 3, 4)); Assert.AreEqual (1, new[]{0,1,2}.IndexOfAny (3, 2, 1)); Assert.AreEqual (-1, new[]{0,1,2}.IndexOfAny (3, 4, 5)); }