public void Overwrite_existing_value()
{
const string key = "MY_KEY";
const string value = "MY_VALUE";
//Arrange
var repo = new Mock<IRepository>();
var config = new Config { Key = key, Value = value };
repo.Setup(r => r.Single<Config>(key)).Returns(config);
var target = new ConfigProvider(repo.Object);
//Act
target.SetValue(key, value);
//Assert
repo.Verify(c => c.Update(config));
repo.Verify(c => c.Add(It.IsAny<Config>()), Times.Never());
}
public void Add_new_value()
{
const string key = "MY_KEY";
const string value = "MY_VALUE";
//Arrange
var repo = new Mock<IRepository>();
repo.Setup(r => r.Single<Config>(It.IsAny<string>())).Returns<Config>(null).Verifiable();
var target = new ConfigProvider(repo.Object);
//Act
target.SetValue(key, value);
//Assert
repo.Verify();
repo.Verify(r => r.Update(It.IsAny<Config>()), Times.Never());
repo.Verify(r => r.Add(It.Is<Config>(c => c.Key == key && c.Value == value)), Times.Once());
}