public void ItShouldFilterTasksByTag()
{
TaskList testList = new TaskList();
Task testTask1 = new Task();
testTask1.TaskDescription = "First task";
testTask1.TaskId = "AAAA";
Task testTask2 = new Task();
testTask2.TaskDescription = "Second";
testTask2.TaskId = "BBBB";
Task testTask3 = new Task();
testTask3.TaskId = "CCCC";
testTask3.TaskDescription = "Third task";
testList.AddTask(ref testTask1);
testList.AddTask(ref testTask2);
testList.AddTask(ref testTask3);
TaskTagger tagTasks = new TaskTagger(testList.GetTasks());
tagTasks.AssignTag(testTask1.TaskId, "funny");
tagTasks.AssignTag(testTask2.TaskId, "sad");
tagTasks.AssignTag(testTask3.TaskId, "funny");
testList.SetTasks(tagTasks.GetTasks());
List<Task> filteredList = testList.FilterByTag("funny");
var actual = filteredList;
var expected = new List<Task>();
expected.Add(testList.GetTask(0));
expected.Add(testList.GetTask(2));
CollectionAssert.AreEqual(expected, actual);
}
