public void Find_ShouldReturnAllDrawsOfAGameWhenThereAreNoDateLimits()
{
//Arrange
var someGame = new LotteryGameBuilder().WithRandomDraws(5, 10).Build();
var someOtherGame = new LotteryGameBuilder().WithRandomDraws(5, 10).Build();
using (var context = CreateDbContext())
{
context.Add(someGame);
context.Add(someOtherGame);
context.SaveChanges();
}
using (var context = CreateDbContext())
{
var repo = new DrawRepository(context);
//Act
var draws = repo.Find(someGame.Id, null, null);
//Assert
Assert.That(draws, Is.Not.Null, () => "No draws are returned.");
Assert.That(draws.Count, Is.Not.GreaterThan(someGame.Draws.Count), () => "Too much draws are returned.");
Assert.That(draws.Count, Is.EqualTo(someGame.Draws.Count), () => "All the draws of a game should be returned.");
Assert.That(draws, Has.All.Matches((Draw draw) => draw.LotteryGameId == someGame.Id),
() =>
"Only draws of the lottery game with an 'Id' that matches the 'lotterGameId' parameter, should be returned.");
}
}
public void Add_ShouldAddADrawToTheDatabase()
{
//Arrange
var someGame = new LotteryGameBuilder().Build();
using (var context = CreateDbContext())
{
context.Add(someGame);
context.SaveChanges();
}
var newDraw = new DrawBuilder().WithLotteryGameId(someGame.Id).WithRandomDrawNumbers(1, 1).Build();
using (var context = CreateDbContext())
{
var repo = new DrawRepository(context);
//Act
repo.Add(newDraw);
}
using (var context = CreateDbContext())
{
//Assert
var savedDraw = context.Set <Draw>().FirstOrDefault(draw => draw.Id == newDraw.Id);
Assert.That(savedDraw, Is.Not.Null, () => "Cannot find the added draw in the database.");
}
}
public void Find_ShouldIncludeTheDrawNumbersOfTheReturnedDraws()
{
//Arrange
var someGame = new LotteryGameBuilder().WithRandomDraws(1, 1).Build();
using (var context = CreateDbContext())
{
context.Add(someGame);
context.SaveChanges();
}
using (var context = CreateDbContext())
{
var repo = new DrawRepository(context);
//Act
var draws = repo.Find(someGame.Id, null, null);
//Assert
Assert.That(draws, Is.Not.Null, () => "No draws are returned.");
var firstDraw = draws.FirstOrDefault();
Assert.That(firstDraw, Is.Not.Null, () => "No draws are returned.");
Assert.That(firstDraw.DrawNumbers, Is.Not.Null.And.Not.Empty, () => "The draw numbers of the draws are not returned from the database.");
}
}
public void CreateDrawFor_ShouldAlwaysGenerateUniqueNumbersInADraw()
{
var someGame = new LotteryGameBuilder()
.WithId()
.WithMaximumNumber(3)
.WithMaximumNumberOfNumbersInADrawy(2)
.Build();
var amountOfRunsToRuleOutRandomness = 20;
bool generatesRandomNumbers = false;
for (int i = 0; i < amountOfRunsToRuleOutRandomness; i++)
{
_drawRepositoryMock.Invocations.Clear();
_service.CreateDrawFor(someGame);
bool isDifferent = false;
_drawRepositoryMock.Verify(repo => repo.Add(It.Is <Draw>(draw => AssertIsDrawWitUniqueNumbers(draw, out isDifferent))), Times.Once,
"The draw created by the service should be added using the repository.");
if (isDifferent)
{
generatesRandomNumbers = true;
}
}
Assert.That(generatesRandomNumbers, Is.True, () => "The service does not seem to use random numbers to create a draw.");
}
public void Find_ShouldOnlyReturnDrawsBeforeUntilDate()
{
//Arrange
var untilDate = DateTime.Now.AddDays(-1);
var someGame = new LotteryGameBuilder().WithDrawsAroundDateRange(null, untilDate).Build();
using (var context = CreateDbContext())
{
context.Add(someGame);
context.SaveChanges();
}
var expectedDraws = someGame.Draws.Where(d => d.Date <= untilDate).OrderBy(d => d.Date).ToList();
TestFindForDateRange(someGame.Id, null, untilDate, expectedDraws);
}
public void CreateDrawFor_ShouldGenerateACorrectListOfNumbersAndAddADrawUsingTheRepository()
{
var someGame = new LotteryGameBuilder().WithId().Build();
_service.CreateDrawFor(someGame);
var amountOfRunsToRuleOutRandomness = 10;
for (int i = 0; i < amountOfRunsToRuleOutRandomness; i++)
{
_drawRepositoryMock.Invocations.Clear();
_service.CreateDrawFor(someGame);
_drawRepositoryMock.Verify(repo => repo.Add(someGame.Id, It.Is <IList <int> >(numbers => AssertIsValidNumbersList(someGame, numbers))), Times.Once,
"The Add method of the repository is not called correctly.");
}
}
public void CreateDrawFor_ShouldGenerateACorrectDrawAndAddItToTheRepository()
{
var someGame = new LotteryGameBuilder().WithId().Build();
var now = DateTime.Now;
_service.CreateDrawFor(someGame);
var amountOfRunsToRuleOutRandomness = 10;
for (int i = 0; i < amountOfRunsToRuleOutRandomness; i++)
{
_drawRepositoryMock.Invocations.Clear();
_service.CreateDrawFor(someGame);
_drawRepositoryMock.Verify(repo => repo.Add(It.Is <Draw>(draw => AssertIsValidDraw(draw, someGame, now))), Times.Once,
"The draw created by the service should be added using the repository.");
}
}
