public void IndexOfTest()
{
var header = new CsvHeader(new string[] { "id", "name", "age" });
Assert.AreEqual(0, header.IndexOf("id"));
Assert.AreEqual(1, header.IndexOf("name"));
Assert.AreEqual(2, header.IndexOf("age"));
Assert.AreEqual(-1, header.IndexOf("last name"));
}
