Test console application, which calculates a la Fibonacci sequence.
Consists of four parts.
Main console application, which provides bridge between user and application below.
Provides AlaFibonacciCalculator - static class, which calculates, corresponding to index, AlaFibonacci sequence member.
So, the main question is - why did you choose static class and static method as well?
The answer is simple. Because static is the simplest way.
Of course we can use Strategy pattern, create AlaFibonacciSequence which is Façade and sort of Context for all manipulations with that sequence, create a bunch of strategies e.g. SimpleAlaFibonacciCalculator, DynamicAlaFibonacciCalculator, MatrixAlaFibonacciCalculator, and finally inject that with the help of Dependency Injection container. AlaFibonacci enterprise edition as it is.
Simple unit tests of AlaFibonacciCalculator.
Benchmark, which measures performance of AlaFibonacciCalculator.
BenchmarkDotNet=v0.11.3, OS=Windows 10.0.17134.523 (1803/April2018Update/Redstone4)
Intel Core i5-7200U CPU 2.50GHz (Kaby Lake), 1 CPU, 4 logical and 2 physical cores
.NET Core SDK=2.2.200-preview-009648
[Host] : .NET Core 2.2.0 (CoreCLR 4.6.27110.04, CoreFX 4.6.27110.04), 64bit RyuJIT
DefaultJob : .NET Core 2.2.0 (CoreCLR 4.6.27110.04, CoreFX 4.6.27110.04), 64bit RyuJIT
| Method | Index | Mean | Error | StdDev | Median |
|---|---|---|---|---|---|
| Calculate | 0 | 16.45 ns | 1.324 ns | 3.904 ns | 15.72 ns |
| Calculate | 1 | 20.29 ns | 1.742 ns | 5.136 ns | 19.26 ns |
| Calculate | 5 | 218.81 ns | 6.937 ns | 20.453 ns | 221.45 ns |
| Calculate | 10 | 553.30 ns | 15.741 ns | 46.413 ns | 567.05 ns |
| Calculate | 25 | 1,441.65 ns | 62.309 ns | 183.721 ns | 1,415.30 ns |
| Calculate | 50 | 4,230.62 ns | 196.823 ns | 548.663 ns | 4,144.93 ns |
| Calculate | 100 | 14,020.65 ns | 573.617 ns | 1,691.323 ns | 14,388.42 ns |
| Calculate | 250 | 45,312.07 ns | 2,156.689 ns | 6,291.162 ns | 45,845.47 ns |
| Calculate | 500 | 106,155.42 ns | 5,179.879 ns | 15,272.990 ns | 107,881.78 ns |
| Calculate | 1000 | 285,771.08 ns | 24,300.359 ns | 71,650.157 ns | 273,259.23 ns |
| Calculate | 2500 | 844,685.76 ns | 35,907.103 ns | 103,024.208 ns | 851,902.04 ns |
| Calculate | 5000 | 2,610,337.28 ns | 140,376.456 ns | 411,699.845 ns | 2,620,543.63 ns |
| Calculate | 10000 | 8,590,966.25 ns | 378,129.404 ns | 1,114,923.079 ns | 8,653,526.80 ns |
| Calculate | 25000 | 45,297,977.70 ns | 2,399,107.524 ns | 7,036,167.067 ns | 45,661,123.08 ns |
| Calculate | 50000 | 174,762,020.75 ns | 9,129,784.471 ns | 26,632,009.832 ns | 174,858,333.33 ns |
| Calculate | 100000 | 691,708,238.20 ns | 37,321,593.001 ns | 103,417,958.413 ns | 685,595,900.00 ns |
Main console application:
dotnet .\AlaFibonacci.dll -i <your index>
Benchmarks:
dotnet .\AlaFibonacci.Benchmarks.dll