public static void TestAndExecuteNoDevice(string swiftCode, CodeElementCollection <ICodeElement> callingCode,
                                                  string expectedOutput, string testName = null,
                                                  PlatformName platform       = PlatformName.None,
                                                  UnicodeMapper unicodeMapper = null)
        {
            SetInvokingTestNameIfUnset(ref testName, out string nameSpace);

            using (var provider = new DisposableTempDirectory()) {
                var compiler = Utils.CompileSwift(swiftCode, provider, nameSpace);

                var libName           = $"lib{nameSpace}.dylib";
                var tempDirectoryPath = Path.Combine(provider.DirectoryPath, "BuildDir");
                Directory.CreateDirectory(tempDirectoryPath);
                File.Copy(Path.Combine(compiler.DirectoryPath, libName), Path.Combine(tempDirectoryPath, libName));

                Utils.CompileToCSharp(provider, tempDirectoryPath, nameSpace, unicodeMapper: unicodeMapper);

                CSFile csFile = TestRunningCodeGenerator.GenerateTestEntry(callingCode, testName, nameSpace, platform);
                csFile.Namespaces.Add(CreateManagedConsoleRedirect());
                CodeWriter.WriteToFile(Path.Combine(tempDirectoryPath, "NameNotImportant.cs"), csFile);

                var sourceFiles = Directory.GetFiles(tempDirectoryPath, "*.cs");
                Compiler.CSCompile(tempDirectoryPath, sourceFiles, "NameNotImportant.exe", platform: platform);

                CopyTestReferencesTo(tempDirectoryPath, platform);

                var output = Execute(tempDirectoryPath, "NameNotImportant.exe", platform);
                Assert.AreEqual(expectedOutput, output);
            }
        }
        public static void TestAndExecute(string swiftCode, CodeElementCollection <ICodeElement> callingCode,
                                          string expectedOutput,
                                          string testName                  = null,
                                          CSClass otherClass               = null, string skipReason = null,
                                          string iosExpectedOutput         = null,
                                          PlatformName platform            = PlatformName.None,
                                          UnicodeMapper unicodeMapper      = null, int expectedErrorCount = 0,
                                          Action <string> postCompileCheck = null,
                                          string[] expectedOutputContains  = null)
        {
            SetInvokingTestNameIfUnset(ref testName, out string nameSpace);
            string testClassName = "TomTest" + testName;

            using (var provider = new DisposableTempDirectory()) {
                var compiler = Utils.CompileSwift(swiftCode, provider, nameSpace);

                var libName           = $"lib{nameSpace}.dylib";
                var tempDirectoryPath = Path.Combine(provider.DirectoryPath, "BuildDir");
                Directory.CreateDirectory(tempDirectoryPath);
                File.Copy(Path.Combine(compiler.DirectoryPath, libName), Path.Combine(tempDirectoryPath, libName));

                Utils.CompileToCSharp(provider, tempDirectoryPath, nameSpace, unicodeMapper: unicodeMapper, expectedErrorCount: expectedErrorCount);
                if (postCompileCheck != null)
                {
                    postCompileCheck(tempDirectoryPath);
                }

                Tuple <CSNamespace, CSUsingPackages> testClassParts = TestRunningCodeGenerator.CreateTestClass(callingCode, testName, iosExpectedOutput ?? expectedOutput, nameSpace,
                                                                                                               testClassName, otherClass, skipReason, platform);

                var thisTestPath = Path.Combine(Compiler.kSwiftDeviceTestRoot, nameSpace);
                Directory.CreateDirectory(thisTestPath);

                var thisTestPathSwift = Path.Combine(thisTestPath, "swiftsrc");
                Directory.CreateDirectory(thisTestPathSwift);

                var swiftPrefix = string.Empty;
                var swiftSuffix = string.Empty;
                var csPrefix    = string.Empty;
                var csSuffix    = string.Empty;
                var nameSuffix  = string.Empty;
                switch (platform)
                {
                case PlatformName.macOS:
                    swiftPrefix = "#if os(OSX)\n";
                    swiftSuffix = "#endif\n";
                    csPrefix    = "#if __MACOS__\n";
                    csSuffix    = "\n#endif\n";
                    nameSuffix  = "_macOS";
                    break;

                case PlatformName.iOS:
                    swiftPrefix = "#if os(iOS)\n";
                    swiftSuffix = "#endif\n";
                    csPrefix    = "#if __IOS__\n";
                    csSuffix    = "\n#endif\n";
                    nameSuffix  = "_iOS";
                    break;

                case PlatformName.tvOS:
                    swiftPrefix = "#if os(tvOS)\n";
                    swiftSuffix = "#endif\n";
                    csPrefix    = "#if __TVOS__\n";
                    csSuffix    = "\n#endif\n";
                    nameSuffix  = "_tvOS";
                    break;

                case PlatformName.watchOS:
                    swiftPrefix = "#if os(watchOS)\n";
                    swiftSuffix = "#endif\n";
                    csPrefix    = "#if __WATCHOS__\n";
                    csSuffix    = "\n#endif\n";
                    nameSuffix  = "_watchOS";
                    break;

                case PlatformName.None:
                    break;

                default:
                    throw new NotImplementedException(platform.ToString());
                }

                File.WriteAllText(Path.Combine(thisTestPathSwift, $"{testClassName}{testName}{nameSuffix}.swift"), swiftPrefix + swiftCode + swiftSuffix);

                CSFile csTestFile     = CSFile.Create(testClassParts.Item2, testClassParts.Item1);
                var    csTestFilePath = Path.Combine(thisTestPath, $"{testClassName}{testName}{nameSuffix}.cs");
                // Write out the file without csPrefix/csSuffix
                CodeWriter.WriteToFile(csTestFilePath, csTestFile);
                if (!string.IsNullOrEmpty(csPrefix) || !string.IsNullOrEmpty(csSuffix))
                {
                    // Read the C# code, and prepend/append the csPrefix/csSuffix blobs, then save the modified contents again.
                    File.WriteAllText(csTestFilePath, csPrefix + File.ReadAllText(csTestFilePath) + csSuffix);
                }

                var csFile = TestRunningCodeGenerator.GenerateTestEntry(callingCode, testName, nameSpace, platform, otherClass);
                csFile.Namespaces.Add(CreateManagedConsoleRedirect());
                CodeWriter.WriteToFile(Path.Combine(tempDirectoryPath, "NameNotImportant.cs"), csFile);

                var sourceFiles     = Directory.GetFiles(tempDirectoryPath, "*.cs");
                var objcRuntimePath = Path.Combine(tempDirectoryPath, "ObjCRuntime");
                if (Directory.Exists(objcRuntimePath))
                {
                    sourceFiles = sourceFiles.And(Directory.GetFiles(objcRuntimePath, "*.cs"));
                }

                var compilerWarnings = Compiler.CSCompile(tempDirectoryPath, sourceFiles, "NameNotImportant.exe", platform: platform);

                if (compilerWarnings.Contains("warning"))
                {
                    FailOnBadWarnings(compilerWarnings);
                }

                CopyTestReferencesTo(tempDirectoryPath, platform);

                var output = Execute(tempDirectoryPath, "NameNotImportant.exe", platform);
                if (expectedOutput != null)
                {
                    Assert.AreEqual(expectedOutput, output);
                }
                else
                {
                    foreach (var s in expectedOutputContains)
                    {
                        Assert.IsTrue(output.Contains(s), $"Expected to find string {s} in {output}");
                    }
                }
            }
        }