public async Task <int> GetNextNumberAsync(int currentNumber)
{
var fibonacciNumber = await _repository.GetFibonacciNumberAsync(currentNumber);
if (fibonacciNumber != null)
{
return(fibonacciNumber.Next);
}
fibonacciNumber = await _repository.GetClosestNumberAsync(currentNumber) ?? new FibonacciNumber
{
Value = 1, Previous = 1, Next = 2
};
while (fibonacciNumber.Value <= currentNumber)
{
var newValue = fibonacciNumber.Next;
var newPrevious = fibonacciNumber.Value;
var newNext = fibonacciNumber.Next + fibonacciNumber.Value;
var fn = new FibonacciNumber
{
Value = newValue,
Next = newNext,
Previous = newPrevious
};
await _repository.AddAsync(fn);
fibonacciNumber = fn;
}
return(fibonacciNumber.Value);
}
public void Fib(int n, int expected)
{
var sut = new FibonacciNumber();
var actual = sut.Fib(n);
Assert.AreEqual(expected, actual);
}
public void TestMethod3()
{
var fibonaccinumber = new FibonacciNumber();
int expected = 144;
int output = FibonacciNumber.Fibonacci(12);
Assert.AreEqual(expected, output);
}
public FibonacciNumber ComputingNextNumber(FibonacciNumber number)
{
logger.LogInformation("Start local computing next number");
var nextNumber = numberProvider.GetNext(number);
logger.LogInformation("End local computing next number - {nextNumberValue}", nextNumber.Value);
return(nextNumber);
}
public void FibonacciNumberTest3()
{
var fibonacciNumber = new FibonacciNumber();
var actual = fibonacciNumber.FibBottomUp(100);
var expected = 3736710778780434371;
Assert.That(actual, Is.EqualTo(expected));
}
public void CalculationNaiveTest()
{
var n = 9;
var result = FibonacciNumber.Naive(n);
const int expectedResult = 34;
Assert.IsTrue(result == expectedResult, "The result is incorrect");
}
public void CalculationMemoizationTest()
{
var n = 93;
var result = FibonacciNumber.Memoization(n);
const ulong expectedResult = 12200160415121876738;
Assert.IsTrue(result == expectedResult, "The result is incorrect");
}
public IActionResult Post(Guid sequenceId, [FromBody] FibonacciNumber number)
{
numberValidator.EnsureValid(number);
backgroundJobDirector.Enqueue(() => numberService.PublishNextAsync(sequenceId, number));
logger.LogInformation("Background calculation of the next number for sequence {sequenceId} is started", sequenceId);
return(Accepted());
}
public void GetSequenceTest()
{
List <int> expected = new List <int> {
0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55
};
List <int> result = FibonacciNumber.GetSequence(10).ToList();
CollectionAssert.AreEqual(expected, result);
}
public void FibonacciNumberTest1()
{
var fibonacciNumber = new FibonacciNumber();
var actual = fibonacciNumber.Fib(5);
var expected = 5;
Assert.That(actual, Is.EqualTo(expected));
}
static void Main(string[] args)
{
FibonacciNumber f = new FibonacciNumber(25);
foreach (long number in f)
{
Console.WriteLine(number);
}
Console.ReadLine();
}
public void Baseline()
{
var sut = new FibonacciNumber();
var numbers = new[] { 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765 };
for (var i = 0; i < numbers.Length; i++)
{
Assert.Equal(numbers[i], sut.GetNumber(i));
}
}
public FibonacciNumber GetNext(FibonacciNumber number)
{
numberValidator.EnsureValid(number);
return(new FibonacciNumber
(
index: number.Index + 1,
value: fibonacciAlgorithm.Get(number.Index - 1) + number.Value
));
}
public async Task PublishNextAsync(Guid sequenceId, FibonacciNumber number)
{
var nextNumber = numberProvider.GetNext(number);
logger.LogInformation("Next number for sequence {sequenceId} is {value}", sequenceId, nextNumber.Value);
var message = messageBuilder.Build(nextNumber);
await messagePublisher.PublishAsync(topic : sequenceId.ToString(), message).ConfigureAwait(false);
logger.LogInformation("Message {messageId} with nex number for sequence {sequenceId} is published", message.Id, sequenceId);
}
public void TestMethod2(int N, int expected)
{
// Arrange
FibonacciNumber question = new FibonacciNumber();
// Act
int actual = question.FibIterative(N);
// Assert
Assert.AreEqual(expected, actual);
}
public void GetValueTest()
{
var numbers = TestData.Numbers;
for (var i = 0; i < numbers.Length; i++)
{
var expected = numbers.Span[i];
var actual = FibonacciNumber.GetValue(i);
Assert.Equal(expected, actual);
}
}
public FibonacciNumberMessage Build(FibonacciNumber number)
{
return(new FibonacciNumberMessage
(
id: guidManager.GetNew(),
createdAt: dateTimeManager.GetNow(),
data: new FibonacciNumber
(
index: number.Index,
value: number.Value
)
));
}
public void EnsureValid(FibonacciNumber number)
{
if (number is null)
{
throw new ArgumentNullException(nameof(number));
}
if (number.Value < 1)
{
throw new ArgumentException("Value must be greater than zero.", nameof(number.Value));
}
if (number.Index < 1)
{
throw new ArgumentException("Value must be greater than zero.", nameof(number.Index));
}
}
public async Task AddAsync(FibonacciNumber fibonacciNumber)
{
try
{
fibonacciNumber.Id = Guid.NewGuid().ToString().Replace("-", string.Empty);
_context.FibonacciNumbers.Add(fibonacciNumber);
await _context.SaveChangesAsync();
}
catch (DbUpdateException)
{
//If we get a db exception, it is most likely a duplicate entry, so its safe to ignore.
return;
}
}
public static void LoadCache()
{
var fib = new FibonacciNumber(0, 1, 0);
_fibonacciCache.Add(0, fib);
fib = new FibonacciNumber(1, fib.Value, 0);
_fibonacciCache.Add(1, fib);
fib = new FibonacciNumber(2, fib.Value, fib.First);
_fibonacciCache.Add(2, fib);
fib = new FibonacciNumber(3, fib.Value, fib.First);
_fibonacciCache.Add(3, fib);
fib = new FibonacciNumber(4, fib.Value, fib.First);
_fibonacciCache.Add(4, fib);
fib = new FibonacciNumber(5, fib.Value, fib.First);
_fibonacciCache.Add(5, fib);
}
public void PublishNextAsync_ValidCase(Guid sequenceId, FibonacciNumber number, string expectedTopic, FibonacciNumberMessage expectedMessage)
{
string actualTopic = null;
FibonacciNumberMessage actualMessage = null;
publisherMoq
.Setup(x => x.PublishAsync(It.IsAny <string>(), It.IsAny <FibonacciNumberMessage>()))
.Callback <string, FibonacciNumberMessage>((topic, message) =>
{
actualTopic = topic;
actualMessage = message;
});
service.PublishNextAsync(sequenceId, number).GetAwaiter().GetResult();
using (new AssertionScope())
{
actualTopic.Should().Be(expectedTopic);
actualMessage.Should().BeEquivalentTo(expectedMessage);
}
}
public void ZeroNumber()
{
var sut = new FibonacciNumber();
Assert.Equal(0, sut.GetNumber(0));
}
public void SecondNumber()
{
var sut = new FibonacciNumber();
Assert.Equal(1, sut.GetNumber(2));
}
public void FirstNumber()
{
var sut = new FibonacciNumber();
Assert.Equal(1, sut.GetNumber(1));
}
public void GetFibonacciNumberTestCase9()
{
FibonacciNumber.Fib(8).Should().Be(21);
}
public void GetFibonacciNumberTestCase8()
{
FibonacciNumber.Fib(7).Should().Be(13);
}
public void GetFibonacciNumberTestCase7()
{
FibonacciNumber.Fib(6).Should().Be(8);
}
public void GetFibonacciNumberTestCase6()
{
FibonacciNumber.Fib(5).Should().Be(5);
}
public void GetFibonacciNumberTestCase5()
{
FibonacciNumber.Fib(4).Should().Be(3);
}
public void GetFibonacciNumberTestCase4()
{
FibonacciNumber.Fib(3).Should().Be(2);
}
