linker/Tests/TestCasesRunner/TestCaseSandbox.cs


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using System;
using System.Collections.Generic;
using Mono.Linker.Tests.Cases.Expectations.Assertions;
using Mono.Linker.Tests.Extensions;
using Mono.Linker.Tests.TestCases;

namespace Mono.Linker.Tests.TestCasesRunner {
	public class TestCaseSandbox {
		protected readonly TestCase _testCase;
		protected readonly NPath _directory;

		public TestCaseSandbox (TestCase testCase)
			: this (testCase, NPath.SystemTemp)
		{
		}

		public TestCaseSandbox (TestCase testCase, NPath rootTemporaryDirectory)
			: this (testCase, rootTemporaryDirectory, string.Empty)
		{
		}

		public TestCaseSandbox (TestCase testCase, string rootTemporaryDirectory, string namePrefix)
			: this (testCase, rootTemporaryDirectory.ToNPath (), namePrefix)
		{
		}

		public TestCaseSandbox (TestCase testCase, NPath rootTemporaryDirectory, string namePrefix)
		{
			_testCase = testCase;
			var name = string.IsNullOrEmpty (namePrefix) ? "linker_tests" : $"{namePrefix}_linker_tests";
			_directory = rootTemporaryDirectory.Combine (name);

			_directory.DeleteContents ();

			InputDirectory = _directory.Combine ("input").EnsureDirectoryExists ();
			OutputDirectory = _directory.Combine ("output").EnsureDirectoryExists ();
			ExpectationsDirectory = _directory.Combine ("expectations").EnsureDirectoryExists ();
		}

		public NPath InputDirectory { get; }

		public NPath OutputDirectory { get; }

		public NPath ExpectationsDirectory { get; }

		public IEnumerable<NPath> SourceFiles {
			get { return _directory.Files ("*.cs"); }
		}

		public IEnumerable<NPath> InputDirectoryReferences {
			get { return InputDirectory.Files ("*.dll"); }
		}

		public IEnumerable<NPath> ExpectationsDirectoryReferences {
			get { return ExpectationsDirectory.Files ("*.dll"); }
		}

		public IEnumerable<NPath> LinkXmlFiles {
			get { return InputDirectory.Files ("*.xml"); }
		}

		public virtual void Populate (TestCaseMetadaProvider metadataProvider)
		{
			_testCase.SourceFile.Copy (_directory);

			if (_testCase.HasLinkXmlFile)
				_testCase.LinkXmlFile.Copy (InputDirectory);

			GetExpectationsAssemblyPath ().Copy (InputDirectory);

			foreach (var dep in metadataProvider.AdditionalFilesToSandbox ()) {
				dep.FileMustExist ().Copy (_directory);
			}

			InputDirectoryReferences.Copy (ExpectationsDirectory);
		}

		private static NPath GetExpectationsAssemblyPath ()
		{
			return new Uri (typeof (KeptAttribute).Assembly.CodeBase).LocalPath.ToNPath ();
		}
	}
}