public void ToString_Should_Return_Name()
{
// Arrange
TagViewModel model1 = new TagViewModel("tag1");
// Act + Assert
Assert.That(model1.ToString(), Is.EqualTo("tag1"));
}
public void Constructor_Should_Fill_Properties()
{
// Arrange + Act
TagViewModel model = new TagViewModel("tag1");
// Assert
Assert.That(model.Name, Is.EqualTo("tag1"));
Assert.That(model.Count, Is.EqualTo(1));
}
public void Equals_Should_Use_Name_Property_For_Equality()
{
// Arrange
TagViewModel model1 = new TagViewModel("tag1");
TagViewModel model2 = new TagViewModel("tag2");
// Act
bool areEqual = model1.Equals(model2);
// Assert
Assert.That(areEqual, Is.False);
}
public void equals_should_use_name_property_for_equality()
{
// Arrange
TagViewModel model1 = new TagViewModel("tag1");
TagViewModel model2 = new TagViewModel("tag2");
// Act
bool areEqual = model1.Equals(model2);
// Assert
Assert.That(areEqual, Is.False);
}
public void Hashcode_Should_Change_For_Different_Objects_And_Not_Change_For_Lifetime_Of_Object()
{
// Arrange
TagViewModel model1 = new TagViewModel("tag1");
TagViewModel model2 = new TagViewModel("tag2");
// Act
int hashCode1 = model1.GetHashCode();
int hashCode2 = model2.GetHashCode();
int hashCode1a = model1.GetHashCode();
// Assert
Assert.That(hashCode1, Is.Not.EqualTo(hashCode2));
Assert.That(hashCode1, Is.EqualTo(hashCode1a));
}
public void hashcode_should_change_for_different_objects_and_not_change_for_lifetime_of_object()
{
// Arrange
TagViewModel model1 = new TagViewModel("tag1");
TagViewModel model2 = new TagViewModel("tag2");
// Act
int hashCode1 = model1.GetHashCode();
int hashCode2 = model2.GetHashCode();
int hashCode1a = model1.GetHashCode();
// Assert
Assert.That(hashCode1, Is.Not.EqualTo(hashCode2));
Assert.That(hashCode1, Is.EqualTo(hashCode1a));
}
/// <summary>
/// Retrieves a list of all tags in the system.
/// </summary>
/// <returns>A <see cref="IEnumerable{TagViewModel}"/> for the tags.</returns>
/// <exception cref="DatabaseException">An databaseerror occurred while getting the tags.</exception>
public IEnumerable<TagViewModel> AllTags()
{
try
{
string cacheKey = "alltags";
List<TagViewModel> tags = _listCache.Get<TagViewModel>(cacheKey);
if (tags == null)
{
IEnumerable<string> tagList = Repository.AllTags();
tags = new List<TagViewModel>();
foreach (string item in tagList)
{
foreach (string tagName in PageViewModel.ParseTags(item))
{
if (!string.IsNullOrEmpty(tagName))
{
TagViewModel tagModel = new TagViewModel(tagName);
int index = tags.IndexOf(tagModel);
if (index < 0)
{
tags.Add(tagModel);
}
else
{
tags[index].Count++;
}
}
}
}
_listCache.Add<TagViewModel>(cacheKey, tags);
}
return tags;
}
catch (DatabaseException ex)
{
throw new DatabaseException(ex, "An error occurred while retrieving all tags from the database");
}
}
