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| # Concordion.NET | ||
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| * Dependencies: NUnit | ||
| * NuGet: https://www.nuget.org/packages/Concordion.NET/ | ||
| * Source: https://github.com/concordion/concordion.net |
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| <!DOCTYPE html> | ||
| <html xmlns:concordion="http://www.concordion.org/2007/concordion"> | ||
| <head> | ||
| <meta content="text/html; charset=utf-8" http-equiv="content-type" /> | ||
| </head> | ||
| <body> | ||
| <h1>Stack</h1> | ||
| <pre> | ||
| In order to support last-in-first-out (LIFO) operations | ||
| As an developer | ||
| I want to use a stack | ||
| </pre> | ||
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| <h2>Empty</h2> | ||
| <p concordion:execute="GivenAnEmptyStack()">Given an empty stack</p> | ||
| <p concordion:assert-true="IsEmpty()">Then it has no elements</p> | ||
| <p concordion:assert-true="ShouldThrowWhenPop()">And it throws an exception when calling pop</p> | ||
| <p concordion:assert-true="ShouldThrowWhenPeek()">And it throws an exception when calling peek</p> | ||
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| <h2>Not empty</h2> | ||
| <p concordion:execute="GivenANonEmptyStack()">Given a non empty stack</p> | ||
| <p concordion:execute="#result = Peek()">When calling peek</p> | ||
| <p concordion:assert-true="#result == TopElement">Then it returns the top element</p> | ||
| <p concordion:assert-true="Contains(#result)">But it does not remove the top element</p> | ||
| <p concordion:execute="#result = Pop()">When calling pop</p> | ||
| <p concordion:assert-true="#result == TopElement">Then it returns the top element</p> | ||
| <p concordion:assert-true="DoesNotContain(#result)">And it removes the top element</p> | ||
| </body> | ||
| </html> |
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| using System; | ||
| using System.Collections.Generic; | ||
| using Concordion.NET.Integration; | ||
| using Concordion.Runners.NUnit; | ||
| using NUnit.Framework; | ||
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| namespace ConductOfCode.Concordion | ||
| { | ||
| [TestFixture] | ||
| [ConcordionTest] | ||
| public class StackTest : ExecutableSpecification | ||
| { | ||
| private Stack<int> stack; | ||
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| public int TopElement => 3; | ||
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| // Empty | ||
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| public void GivenAnEmptyStack() | ||
| { | ||
| stack = new Stack<int>(); | ||
| } | ||
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| public bool IsEmpty() | ||
| { | ||
| return stack.Count == 0; | ||
| } | ||
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| public bool ShouldThrowWhenPop() | ||
| { | ||
| return ShouldThrowWhen(() => stack.Pop()); | ||
| } | ||
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| public bool ShouldThrowWhenPeek() | ||
| { | ||
| return ShouldThrowWhen(() => stack.Peek()); | ||
| } | ||
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| private bool ShouldThrowWhen(Action action) | ||
| { | ||
| try | ||
| { | ||
| action(); | ||
| } | ||
| catch | ||
| { | ||
| return true; | ||
| } | ||
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| return false; | ||
| } | ||
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| // Not empty | ||
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| public void GivenANonEmptyStack() | ||
| { | ||
| stack = new Stack<int>(new[] { 1, 2, TopElement }); | ||
| } | ||
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| public int Pop() | ||
| { | ||
| return stack.Pop(); | ||
| } | ||
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| public int Peek() | ||
| { | ||
| return stack.Peek(); | ||
| } | ||
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| public bool Contains(int value) | ||
| { | ||
| return stack.Contains(value); | ||
| } | ||
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| public bool DoesNotContain(int value) | ||
| { | ||
| return !stack.Contains(value); | ||
| } | ||
| } | ||
| } |
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