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