public Result <SpinSlotsResponse> BuildSpin(SpinSlotsRequest request)
{
var totalOutcome = 0m;
var rows = new List <SymbolBase>();
for (var i = 0; i < Rows; i++)
{
var rowResult = RowBuilder.BuildRow();
if (!rowResult.Success)
{
return(Result <SpinSlotsResponse> .OnFailure(rowResult.FailureMessage));
}
rows.AddRange(rowResult.Data);
var outcomeResult = OutcomeBuilder.Build(rowResult.Data);
if (!outcomeResult.Success)
{
return(Result <SpinSlotsResponse> .OnFailure(rowResult.FailureMessage));
}
totalOutcome += outcomeResult.Data;
}
return(ResponseBuilder.Build(request, rows, totalOutcome));
}
public Result <SpinSlotsResponse> Spin(SpinSlotsRequest request)
{
var result = Validator.Validate(request);
if (!result.Success)
{
return(Result <SpinSlotsResponse> .OnFailure(result.FailureMessage));
}
return(Builder.BuildSpin(request));
}
public IActionResult Spin([FromBody] SpinSlotsRequest request)
{
var result = Service.Spin(request);
if (!result.Success)
{
return(BadRequest(result));
}
return(Ok(result));
}
public Result <SpinSlotsResponse> Build(SpinSlotsRequest request, List <SymbolBase> rows, decimal outcome)
{
var currentBalance = request.Balance - request.Stake;
var winnings = outcome * request.Stake;
currentBalance += winnings;
return(Result <SpinSlotsResponse> .OnSuccess(new SpinSlotsResponse()
{
Balance = Math.Max(0, Math.Round(currentBalance, 2)),
Winnings = Math.Round(winnings, 2),
Rows = rows.Select(symbol => symbol.Symbol).ToArray <string>()
}));
}
public void Spin_BuilderHasRan()
{
// Assign
var request = new SpinSlotsRequest()
{
Balance = 10,
Stake = 5
};
// Act
var result = Service.Spin(request);
// Assert
_mockBuilder.Verify(mb => mb.BuildSpin(request), Times.Once);
}
public void Spin_ValidatorHasRan()
{
// Assign
var request = new SpinSlotsRequest()
{
Balance = 10,
Stake = 5
};
// Act
var result = Service.Spin(request);
// Assert
_mockValidator.Verify(mv => mv.Validate(request), Times.Once);
}
public void Spin_ValidSpin()
{
// Assign
var request = new SpinSlotsRequest()
{
Balance = 10,
Stake = 5
};
// Act
var result = Service.Spin(request);
// Assert
result.Success.Should().BeTrue();
result.Data.Balance.Should().BeGreaterOrEqualTo(5);
}
public void Spin_ValidatorHasFailed()
{
// Assign
var request = new SpinSlotsRequest()
{
Balance = 10,
Stake = 20
};
// Act
var result = Service.Spin(request);
// Assert
_mockValidator.Verify(mv => mv.Validate(request), Times.Once);
_mockBuilder.Verify(mb => mb.BuildSpin(request), Times.Never);
}
public void BuildSpin_VerifyBuilders()
{
// Assign
var request = new SpinSlotsRequest()
{
Balance = 200,
Stake = 10
};
// Act
var result = Builder.BuildSpin(request);
// Assert
_mockRowBuilder.Verify(mrb => mrb.BuildRow(), Times.Exactly(SpinSlotsBuilder.Rows));
_mockOutcomeBuilder.Verify(mob => mob.Build(It.IsAny <List <SymbolBase> >()), Times.Exactly(SpinSlotsBuilder.Rows));
_mockSpinSlotsResponseBuilder.Verify(mob => mob.Build(It.IsAny <SpinSlotsRequest>(), It.IsAny <List <SymbolBase> >(), It.IsAny <decimal>()), Times.Once);
}
public void BuildSpin_WinningSpin()
{
// Assign
var request = new SpinSlotsRequest()
{
Balance = 200,
Stake = 10
};
var expectedBalance = 238;
// Act
var result = Builder.BuildSpin(request);
// Assert
result.Success.Should().BeTrue();
result.Data.Balance.Should().Be(expectedBalance);
}
public void Validate_BalanceGreaterThanZero()
{
// Assign
var request = new SpinSlotsRequest()
{
Balance = 0
};
var expectedResult = false;
var expectedMessage = "Your current balance is empty. Please deposit more funds to continue playing.";
// Act
var result = new SpinSlotsValidator().Validate(request);
// Assert
result.Success.Should().Be(expectedResult);
result.FailureMessage.Should().Be(expectedMessage);
}
public void Validate_ValidSpinSlotsRequest()
{
// Assign
var request = new SpinSlotsRequest()
{
Balance = 10,
Stake = 10
};
var expectedResult = true;
// Act
var result = new SpinSlotsValidator().Validate(request);
// Assert
result.Success.Should().Be(expectedResult);
result.FailureMessage.Should().BeNullOrWhiteSpace();
}
public void Validate_StakeeGreaterThanZero()
{
// Assign
var request = new SpinSlotsRequest()
{
Balance = 10,
Stake = 0
};
var expectedResult = false;
var expectedMessage = "Please stake a bet of 1 or higher.";
// Act
var result = new SpinSlotsValidator().Validate(request);
// Assert
result.Success.Should().Be(expectedResult);
result.FailureMessage.Should().Be(expectedMessage);
}
public void BuildResponse_BalancePositiveOrZero()
{
// Assign
var request = new SpinSlotsRequest()
{
Balance = 5,
Stake = 10
};
var rows = new List <SymbolBase>();
var outcome = 0;
// Act
var result = new SpinSlotsResponseBuilder().Build(request, rows, outcome);
// Assert
result.Success.Should().BeTrue();
result.Data.Balance.Should().Be(0);
}
public void Validate_BalanceGreaterThanOrEqualStake()
{
// Assign
var request = new SpinSlotsRequest()
{
Balance = 10,
Stake = 11
};
var expectedResult = false;
var expectedMessage = $"You can not stake more than your current balance. Please add a stake less than {request.Balance}.";
// Act
var result = new SpinSlotsValidator().Validate(request);
// Assert
result.Success.Should().Be(expectedResult);
result.FailureMessage.Should().Be(expectedMessage);
}
public void BuildResponse_BalanceUpdated()
{
// Assign
var request = new SpinSlotsRequest()
{
Balance = 200,
Stake = 10
};
var rows = new List <SymbolBase>();
var outcome = 2;
var expectedBalance = 210;
// Act
var result = new SpinSlotsResponseBuilder().Build(request, rows, outcome);
// Assert
result.Success.Should().BeTrue();
result.Data.Balance.Should().Be(expectedBalance);
}
public void BuildResponse_DisplayNameReturned()
{
// Assign
var request = new SpinSlotsRequest()
{
Balance = 200,
Stake = 10
};
var rows = new List <SymbolBase>()
{
new Apple()
};
var outcome = 2;
// Act
var result = new SpinSlotsResponseBuilder().Build(request, rows, outcome);
// Assert
result.Success.Should().BeTrue();
result.Data.Rows.All(item => item == new Apple().Symbol).Should().BeTrue();
}
