public void MaximumUsageOrderValueIs1()
{
// Arrange
var utcNow = DateTime.UtcNow;
var first = CreateDocumentMetadata(utcNow);
var metadata = new[] { first };
var preferences = Mock.Of <IUserPreferences>(u =>
u.ShowRecentUsage == true);
var service = new NormalizedUsageOrderService();
// Act
service.SetUsageOrder(metadata, preferences);
// Assert
Assert.That(first.UsageOrder, Is.Not.GreaterThan(1));
}
public void UsageOrderIsCalculatedFromActivatedAtTime()
{
// Arrange
var utcNow = DateTime.UtcNow;
var first = CreateDocumentMetadata(utcNow);
var second = CreateDocumentMetadata(utcNow - TimeSpan.FromSeconds(1));
var third = CreateDocumentMetadata(utcNow - TimeSpan.FromSeconds(2));
var metadata = new[]
{
second,
first,
third
};
var preferences = Mock.Of <IUserPreferences>(u =>
u.ShowRecentUsage == true);
var service = new NormalizedUsageOrderService();
// Act
service.SetUsageOrder(metadata, preferences);
// Assert
var interval = 1 / (double)metadata.Length;
var expectedFirst = interval * 3;
var expectedSecond = interval * 2;
var expectedThird = interval * 1;
Assert.That(first.UsageOrder, Is.EqualTo(expectedFirst));
Assert.That(second.UsageOrder, Is.EqualTo(expectedSecond));
Assert.That(third.UsageOrder, Is.EqualTo(expectedThird));
}
public void UsageOrderIs1WhenShowRecentUsageIsFalse()
{
// Arrange
var utcNow = DateTime.UtcNow;
var first = CreateDocumentMetadata(utcNow);
var second = CreateDocumentMetadata(utcNow - TimeSpan.FromSeconds(1));
var third = CreateDocumentMetadata(utcNow - TimeSpan.FromSeconds(2));
var metadata = new[]
{
second,
first,
third
};
var service = new NormalizedUsageOrderService();
var builder = new UserPreferencesBuilder();
var preferences = builder.CreateUserPreferences();
preferences.ShowRecentUsage = false;
// Act
service.SetUsageOrder(metadata, preferences);
// Assert
const double desiredValue = 1;
Assert.That(first.UsageOrder, Is.EqualTo(desiredValue));
Assert.That(second.UsageOrder, Is.EqualTo(desiredValue));
Assert.That(third.UsageOrder, Is.EqualTo(desiredValue));
}