Advanced Unit Testing, Part IV - Fixture Setup/Teardown, Test Repetition And Performance Tests

using System;

using UnitTest;

namespace CaseStudy
{
	[TestFixture]
	public class CaseStudyPerformanceTests
	{
		private Vendor vendor;
		private Random rnd;

		[FixtureSetUp]
		public void TestFixtureSetup()
		{
			// use the same seed for repeatability
			rnd=new Random(0);
			vendor=new Vendor();
			for (int i=0; i<100000; i++)
			{
				Part p=new Part();
				p.Number=i.ToString();
				vendor.Add(p);
			}
		}

		[Test]
		[MinOperationsPerSecond(150000)]
		public void RandomAccessTestByPart()
		{
			int n=rnd.Next(0, 100000);
			Part p=new Part();
			p.Number=n.ToString();
			bool found=vendor.Contains(p);
			Assertion.Assert(found==true, "Expected to find the part!");
		}

		[Test]
		[MinOperationsPerSecond(150000)]
		public void RandomAccessTestByIndex()
		{
			int n=rnd.Next(0, 100000);
			Part p=vendor.Parts[n];
			Assertion.Assert(p.Number==n.ToString(), "Parts not in the same order as when added!");
		}

		[Test]
		[Ignore("Takes too long!")]
		[MinOperationsPerSecond(150000)]
		[Repeat(100)]
		public void RandomAccessTestByNumber()
		{
			int n=rnd.Next(0, 100000);
			bool found=vendor.Contains(n.ToString());
			Assertion.Assert(found==true, "Expected to find the part!");
		}

		[FixtureTearDown]
		public void TestFixtureTearDown()
		{
			vendor.Clear();
		}
	}
}