public void CommonCase()
{
var keeperFactory = new AverageKeeperFactoryMock1();
var source = GenerateStorage;
var averageCounter = new AllAverageGetter(keeperFactory);
var result = averageCounter.Calculate(source);
Assert.Equal(8, result.Keys.Count);
var expectedTuples = source.GroupBy(e => e.Country).SelectMany(e => e.Select(ee => ee.Age).Distinct().Select(ee => new Tuple <string, int>(e.Key, ee)));
Assert.True(expectedTuples.SequenceEqual(result.Keys));
foreach (var iPair in expectedTuples)
{
var selection = source.Where(e => e.Country == iPair.Item1 && e.Age == iPair.Item2);
Assert.Equal(selection.Sum(e => e.GrossSalary) / selection.Count(), result[iPair]);
}
var keepers = keeperFactory.RequestedKeepers.Select(e => new KeeperMockDescription
{
IncomingValues = e.IncomingValues,
LastRequestedAnswer = e.LastRequestedAnswer,
RequestsCount = e.RequestsCount
}
);
var expectedKeeperd = expectedTuples.Select(e => new KeeperMockDescription
{
IncomingValues = source.Where(ee => ee.Country == e.Item1 && ee.Age == e.Item2).Select(ee => ee.GrossSalary),
LastRequestedAnswer = source.Where(ee => ee.Country == e.Item1 && ee.Age == e.Item2).Select(ee => ee.GrossSalary).Sum() / 3,
RequestsCount = 1
});
Assert.True(keepers.SequenceEqual(expectedKeeperd));
}
public void NotCallCalculate()
{
var keeperFactory = new AverageKeeperFactoryMock1();
var source = GenerateStorage;
var averageCounter = new AllAverageGetter(keeperFactory);
Assert.Empty(keeperFactory.RequestedKeepers);
}
public void EmptySource()
{
var keeperFactory = new AverageKeeperFactoryMock1();
var source = new List <Person>();
var averageCounter = new AllAverageGetter(keeperFactory);
var result = averageCounter.Calculate(source);
Assert.Empty(result.Keys);
Assert.Empty(keeperFactory.RequestedKeepers);
}
static void Main(string[] args)
{
var source = GenerateStorage;
var allAverageGetter = new AllAverageGetter(new AverageKeeperFactory());
var printer = new PrinterToConsole();
printer.Print(allAverageGetter.Calculate(source));
var horisontal = new [] { "Gender", "Age" };
var vertical = new [] { "Country", "GrossSalary" };
var aggregator = new Aggregator();
var result = aggregator.Get(source, horisontal, vertical, AggFunc);
var groupPrinter = new Operations.Aggregation.Printing.PrinterToConsole();
groupPrinter.Print(result, horisontal, vertical);
}