public void Constructor_WhenValueIsntCached_DoesNothing()
{
// Act
var viewModel = new StringCachedPropertyDecorator(_keyDataStore, _key);
// Assert
Assert.True(string.IsNullOrEmpty(viewModel.Value));
Assert.True(string.IsNullOrEmpty(viewModel.OriginalValue));
}
public void SetValue_Never_ChangesCachedValue()
{
// Arrange
var viewModel = new StringCachedPropertyDecorator(_keyDataStore, _key);
// Act
viewModel.Value = "Game of Thrones";
// Assert
Assert.True(string.IsNullOrEmpty(viewModel.OriginalValue));
}
public void HasErrors_WhenPropertyIsntRequiredAndMissing_ReturnsFalse()
{
// Arrange
var viewModel = new StringCachedPropertyDecorator(_keyDataStore, _key);
viewModel.Value = string.Empty;
// Act
bool hasErrors = viewModel.HasErrors;
// Assert
Assert.False(hasErrors);
}
public void Save_Always_SetsValueToCachedValue()
{
// Arrange
var viewModel = new StringCachedPropertyDecorator(_keyDataStore, _key);
viewModel.Value = "Game of Thrones";
// Act
viewModel.Save();
// Assert
Assert.Equal("Game of Thrones", viewModel.OriginalValue);
}
public void Constructor_WhenValueIsCached_SetsValue()
{
// Arrange
_keyDataStore.GetValue(_key)
.Returns("Game of Thrones");
// Act
var viewModel = new StringCachedPropertyDecorator(_keyDataStore, _key);
// Assert
Assert.Equal("Game of Thrones", viewModel.Value);
Assert.Equal("Game of Thrones", viewModel.OriginalValue);
}
public void Save_Always_SavesTheValueInTheCache()
{
// Arrange
var viewModel = new StringCachedPropertyDecorator(_keyDataStore, _key);
viewModel.Value = "Game of Thrones";
// Act
viewModel.Save();
// Assert
_keyDataStore.Received()
.SetValue(_key, "Game of Thrones");
}
