public void SetLeftShouldSetLeft()
{
const string propertyName = "dummyProperty";
const string expectedValue = "dummyValue";
string id = "1";
_controller.SetLeftObject(id, EncodeToBase64($"{{ \"{propertyName}\": \"{expectedValue}\" }}"));
ValidatePropertyValue(_dataHolder.Get(id).Left, expectedValue, propertyName);
}