public void TestsIfFetchMethodReturnsTheElementsFromTheArray()
{
var db = new DataBaseClass();
db.Add(1);
db.Add(2);
db.Add(3);
db.Add(4);
db.Add(5);
var expectedResult = new int[] { 1, 2, 3, 4, 5 };
var actualResult = db.Fetch();
Assert.AreEqual(expectedResult, actualResult, "Fetch method does not return all of the elements properly!");
}
public void ChecksIfAddMethodThrowsExceptionWhenOverloadsTheArray()
{
var db = new DataBaseClass(new int[] { 1, 2, 3, 4 });
Assert.Throws <InvalidOperationException>(() => db.Add(5))
.Message
.Equals($"Can`t add more than {db.IntStorage.Length} elements!");
}
public void TestsIfAddMethodAddsAnElementToTheCorrectCell()
{
var db = new DataBaseClass(new int[5]);
var type = typeof(DataBaseClass);
db.Add(1);
db.Add(2);
db.Add(2);
db.Add(2);
var actualIndex = (int)type.GetFields(BindingFlags.Instance |
BindingFlags.NonPublic)
.FirstOrDefault(x => x.Name == "currentIndex")
.GetValue(db);
int expectedIndex = 4;
Assert.AreEqual(expectedIndex, actualIndex, "Add command does not set the number on the correct index");
}
