public void AddNumbersShouldAddNumbersAndLogInformation()
{
// arrange
string number1 = "5", number2 = "6";
string sum = (int.Parse(number1) + int.Parse(number2)).ToString();
string logMessage = $"Timestamp= {DateTime.Now.ToString()},number1={number1} , number2={number2} , result={sum}";
var mock_Logger = new Mock <ILogService>();
mock_Logger.Setup(it => it.Log(It.IsAny <string>())).Verifiable();
mock_Logger.Setup(it => it.GetAllLogs()).Returns(() => new[] { logMessage });
var mock_NumberCalculator = new Mock <INumberCalculator>();
mock_NumberCalculator.Setup(it => it.AddBigNumbers(number1, number2)).Returns(() => sum);
var controller = new NumbersController(mock_Logger.Object, mock_NumberCalculator.Object);
// act
var result = (controller.Add(number1, number2) as OkNegotiatedContentResult <string>);
var logResult = (controller.GetAllLogs() as OkNegotiatedContentResult <IList <string> >);
// assert
Assert.AreEqual(result.Content, sum);
Assert.AreEqual(logResult.Content.Count, 1);
Assert.AreEqual(logResult.Content[0], logMessage);
}
