static void Main()
{
string[] input = { "Apple", "Orange", "Pear", "Apple" };
ItemCounter itemCounter = new ItemCounter(input);
foreach (var item in itemCounter.distinctItems)
{
Console.WriteLine("{0}:{1}", item.Key, item.Value);
}
Console.WriteLine("Total distinct items: {0}", itemCounter.DistinctItems);
Console.WriteLine("\"Apple\" instances: {0}", itemCounter.GetCount("Apple"));
Console.WriteLine("\"Orange\" instances: {0}", itemCounter.GetCount("Orange"));
Console.WriteLine("\"Blank\" instances: {0}", itemCounter.GetCount("Blank"));
Console.WriteLine("\"null\" instances: {0}", itemCounter.GetCount(null));
Console.WriteLine("Contains key \"Lemon\": {0}", itemCounter.HasItem("Lemon"));
Console.WriteLine("Contains key \"null\": {0}", itemCounter.HasItem(null));
Console.ReadLine();
}
public void HasItem_WhenItemExists_ReturnsTrue()
{
// ARRANGE
var item = "Apple";
var items = new[] { item };
var counter = new ItemCounter <string>(items);
// ACT
var actual = counter.HasItem(item);
// ASSERT
Assert.IsTrue(actual);
}
public void HasItem_WhenItemDoesNotExist_ReturnsFalse()
{
// ARRANGE
var item1 = "Apple";
var item2 = "Pear";
var items = new[] { item1 };
var counter = new ItemCounter <string>(items);
// ACT
var actual = counter.HasItem(item2);
// ASSERT
Assert.IsFalse(actual);
}