public void TestIndexOf()
{
int[] integers = new int[] { 12, 34, 67, 89 };
StringTransformer testCollection = new StringTransformer(integers);
Assert.AreEqual(0, testCollection.IndexOf("12"));
Assert.AreEqual(1, testCollection.IndexOf("34"));
Assert.AreEqual(2, testCollection.IndexOf("67"));
Assert.AreEqual(3, testCollection.IndexOf("89"));
}
public void TestIndexOfWithNullItemContained()
{
int[] integers = new int[] { 12, 34, 67, 89, 42 };
StringTransformer testCollection = new StringTransformer(integers);
Assert.AreEqual(4, testCollection.IndexOf(null));
}