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NUnit TestCaseSource Async
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| using System; | |
| using System.Threading; | |
| namespace MT.Tests | |
| { | |
| /// <summary> | |
| /// An object containing some information. | |
| /// </summary> | |
| public class Logic | |
| { | |
| public int Id { get; set; } | |
| } | |
| /// <summary> | |
| /// Contains functions to process information. | |
| /// </summary> | |
| public class LogicService | |
| { | |
| /// <summary> | |
| /// A method to process the information. | |
| /// </summary> | |
| public void DoSomething(Logic logic) | |
| { | |
| Console.WriteLine(logic.Id); // Does something. | |
| Thread.Sleep(1 * 1000); // Simulate time taken to do some work. | |
| } | |
| } | |
| } |
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| using System.Collections.Generic; | |
| using System.Threading.Tasks; | |
| using NUnit.Framework; | |
| namespace MT.Tests | |
| { | |
| [TestFixture] | |
| public class Test | |
| { | |
| /// <summary> | |
| /// Collection of test cases. | |
| /// </summary> | |
| private static IEnumerable<Logic> LogicCollection | |
| { | |
| get | |
| { | |
| var list = new List<Logic>(); | |
| for (var i = 0; i < 1000; i++) | |
| list.Add(new Logic { Id = i }); | |
| return list; | |
| } | |
| } | |
| /// <summary> | |
| /// Typical implementation of TestCaseSource. | |
| /// </summary> | |
| /// <param name="logicTestCase"></param> | |
| [TestCaseSource(nameof(LogicCollection))] | |
| public void LogicTest(Logic logicTestCase) | |
| { | |
| // Default execution. | |
| var service = new LogicService(); | |
| Assert.DoesNotThrow(() => service.DoSomething(logicTestCase)); | |
| } | |
| /// <summary> | |
| /// Async implementation, NOTE this binds to the NUnit Runner UI as-is. | |
| /// i.e. individual test cases are still visible in the runner. | |
| /// </summary> | |
| /// <param name="logicTestCase"></param> | |
| [TestCaseSource(nameof(LogicCollection))] | |
| public void AsyncLogicTest(Logic logicTestCase) | |
| { | |
| // Task Parallel library executes each test case in a seperate background thread. | |
| Task.Run(() => | |
| { | |
| var service = new LogicService(); | |
| service.DoSomething(logicTestCase); | |
| }); | |
| } | |
| } | |
| } |
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This is a very simple example of how NUnit TestCaseSource can be run asynchronously, which if used in the context of integration tests can boost performance and significantly reduce execution time.