public void TestCommonCase()
{
var averageKeeperFactory = new AverageKeeperFactoryMock();
var keeper = averageKeeperFactory.Instance;
var selectorByCountryAndAge = new SelectorByCountryAndAgeMock();
var singleAverageGetter = new SingleAverageGetter(averageKeeperFactory, selectorByCountryAndAge);
var source = GenerateStorage;
var age = 20;
var country = "USA";
var result = singleAverageGetter.Calculate(source, age, country);
Assert.Equal(1, selectorByCountryAndAge.RequestsCount);
Assert.True(selectorByCountryAndAge.LastRequestedSource.SequenceEqual(source));
Assert.Equal(age, selectorByCountryAndAge.LastRequestedAge);
Assert.Equal(country, selectorByCountryAndAge.LastRequestedCountry);
Assert.True(keeper.LastRequestedAnswer.HasValue);
Assert.Equal(result, keeper.LastRequestedAnswer.Value);
Assert.Equal(1, keeper.RequestsCount);
Assert.True(keeper.IncomingValues.SequenceEqual(new List <double>()
{
2000, 2500, 1500
}));
}
public void WithoutCall()
{
var source = GenerateStorage;
var singleAverageGetter = new SingleAverageGetter(new AverageKeeperFactory(), new SelectorByCountryAndAge());
var selectorByCountryAndAgeMock = new SelectorByCountryAndAgeMock();
var grossSalaryAverageSetter = new GrossSalaryAverageSetter(selectorByCountryAndAgeMock);
var checkStorage = GenerateStorage;
Assert.Equal(0, selectorByCountryAndAgeMock.CountOfCalling);
Func <Person, string> serializer = p => $"{p.Age} {p.Country} {p.Gender} {p.GrossSalary}";
Assert.True(checkStorage.Select(serializer).SequenceEqual(source.Select(serializer)));
}
public void TestNotRequestedResult()
{
var averageKeeperFactory = new AverageKeeperFactoryMock();
var keeper = averageKeeperFactory.Instance;
var selectorByCountryAndAge = new SelectorByCountryAndAgeMock();
var singleAverageGetter = new SingleAverageGetter(averageKeeperFactory, selectorByCountryAndAge);
Assert.Equal(0, selectorByCountryAndAge.RequestsCount);
Assert.True(selectorByCountryAndAge.LastRequestedSource == default(IEnumerable <Person>));
Assert.False(selectorByCountryAndAge.LastRequestedAge.HasValue);
Assert.True(string.IsNullOrEmpty(selectorByCountryAndAge.LastRequestedCountry));
Assert.False(keeper.LastRequestedAnswer.HasValue);
Assert.Equal(0, keeper.RequestsCount);
Assert.False(keeper.IncomingValues.Any());
}
public void CommonCase()
{
var source = GenerateStorage;
var singleAverageGetter = new SingleAverageGetter(new AverageKeeperFactory(), new SelectorByCountryAndAge());
var age = 20;
var country = "USA";
var average = 4000;
var selectorByCountryAndAgeMock = new SelectorByCountryAndAgeMock();
var grossSalaryAverageSetter = new GrossSalaryAverageSetter(selectorByCountryAndAgeMock);
var result = grossSalaryAverageSetter.SetAverage(source, age, country, average);
Assert.Equal(average, singleAverageGetter.Calculate(result.ToList(), age, country));
Assert.Equal(1, selectorByCountryAndAgeMock.CountOfCalling);
Assert.True(result.SequenceEqual(selectorByCountryAndAgeMock.CopyOfLastReturnedCollection));
}
