public void BaseTestCalculation(decimal amount, string expected)
{
var combination = _service.GetSmallestCombination(amount);
Assert.IsTrue(combination.HasResult());
Assert.IsTrue(combination.Count() == 1);
var result = combination.ElementAt(0);
Assert.IsNotNull(result);
Assert.IsTrue(result.Quantity == 1);
Assert.IsTrue(result.Money.Amount == amount);
Assert.AreEqual(result.Money.ToString(), expected);
}
/// <summary>
/// GET api/calculate/1000.00
/// Returns a combination that define how the amount could be splitted in the minimun total quantity of all types
/// </summary>
/// <param name="amount">
/// Amount to manage
/// </param>
/// <returns>
/// An HttpResponseMessage that contains the JSON value of the calculated combination
/// </returns>
public HttpResponseMessage Get(decimal amount)
{
HttpResponseMessage response;
if (amount < 0 || amount > 1000)
{
response = GetResponseMessage(
HttpStatusCode.BadRequest,
new StringContent("The value of amount must be between p0.01 and £1000."));
}
else
{
var combination = _service.GetSmallestCombination(amount);
var jsonCombination = JsonConvert.SerializeObject(combination);
response = GetResponseMessage(
HttpStatusCode.OK,
new StringContent(jsonCombination, Encoding.UTF8, "application/json"));
}
return(response);
}