public void DefaultCollectionIsEmptyNotNull()
{
// Arrange
var sut = new TweetBrowserVirtualDataStore();
Assert.That(sut.AllItems.Count.Equals(0));
}
public void AddMethodReturnsItemAdded()
{
// Arrange
var sut = new TweetBrowserVirtualDataStore();
var testId = "09113456";
Tweet tweet = new Tweet()
{
Id = testId,
Stamp = "2018/3/24 01:15 AM",
Text = "Test message"
};
// Act
var item = sut.Add(tweet);
Assert.That(tweet.Equals(item));
}
public void AddMethodAddsItemToCollection()
{
// Arrange
var sut = new TweetBrowserVirtualDataStore();
var testId = "09113456";
Tweet tweet = new Tweet()
{
Id = testId,
Stamp = "2018/3/24 01:15 AM",
Text = "Test message"
};
// Act
sut.Add(tweet);
var item = sut.AllItems.FirstOrDefault(t => t.Id == testId);
Assert.That(tweet.Equals(item));
}
public void AddMethodReturnsNullOnAttemptToAddDuplicate()
{
// Arrange
var sut = new TweetBrowserVirtualDataStore();
var testId = "09113456";
Tweet tweet = new Tweet()
{
Id = testId,
Stamp = "2018/3/24 01:15 AM",
Text = "Test message"
};
sut.Add(tweet);
// Act
var item = sut.Add(tweet);
Assert.IsNull(item);
}
public void AddMethodDoesNotAddDuplicatesItems()
{
// Arrange
var sut = new TweetBrowserVirtualDataStore();
Tweet tweet = new Tweet()
{
Id = "09113456",
Stamp = "2018/3/24 01:15 AM",
Text = "Test message"
};
// Act
sut.Add(tweet);
var count = sut.AllItems.Count;
sut.Add(tweet);
Assert.That(count.Equals(sut.AllItems.Count));
}
