public void TestFindCategoryId()
{
Assert.AreEqual("1", data.FindCategoryId("1"));
Assert.AreEqual("1", data.FindCategoryId("2"));
Assert.AreEqual("1", data.FindCategoryId("3"));
Assert.AreEqual("1", data.FindCategoryId("4"));
Assert.AreEqual("1", data.FindCategoryId("5"));
Assert.AreEqual("1", data.FindCategoryId("6"));
Assert.AreEqual("2", data.FindCategoryId("7"));
Assert.AreEqual("2", data.FindCategoryId("8"));
Assert.AreEqual("2", data.FindCategoryId("9"));
Assert.AreEqual("3", data.FindCategoryId("10"));
Assert.AreEqual("3", data.FindCategoryId("11"));
}
