public void PullDataReturnsEmptyListThrowAnException()
{
_marketDataProvider.Setup(x => x.PullData()).Returns(new List <MarketOverheadDataEntry>());
var fruitpalCalculator = new FruitpalCalculator(_marketDataProvider.Object);
var result = fruitpalCalculator.CalculateCost("mango", It.IsAny <decimal>(), It.IsAny <int>());
}
public void MissingFruitInMarketDataThrowAnException()
{
_marketDataProvider.Setup(x => x.PullData()).Returns(SampleMarketData());
var fruitpalCalculator = new FruitpalCalculator(_marketDataProvider.Object);
var result = fruitpalCalculator.CalculateCost("manggo", It.IsAny <decimal>(), It.IsAny <int>());
}
public void ResutlsShouldComeCorrectAndOrderedByTotalCostFromHighestToLowest()
{
_marketDataProvider.Setup(x => x.PullData()).Returns(SampleMarketData());
var fruitpalCalculator = new FruitpalCalculator(_marketDataProvider.Object);
var resultList = fruitpalCalculator.CalculateCost("mango", 53, 405);
for (int i = 0; i < resultList.Count - 1; i++)
{
// validating calculations correctness
Assert.AreEqual(resultList[i].TotalCost, (resultList[i].Cost + resultList[i].VariableOverhead) * resultList[i].Tons + resultList[i].FixedOverhead);
// validating order correctness
Assert.IsTrue(resultList[i].TotalCost >= resultList[i + 1].TotalCost);
}
// validating calculations correctness on the last element of the list
Assert.AreEqual(resultList[resultList.Count - 1].TotalCost, (resultList[resultList.Count - 1].Cost + resultList[resultList.Count - 1].VariableOverhead) * resultList[resultList.Count - 1].Tons + resultList[resultList.Count - 1].FixedOverhead);
}