private object CompileAndCreateTest(string fileName, Feature feature)
{
string className = Path.GetFileNameWithoutExtension(fileName);
const string targetNamespace = "Target.Namespace";
// the row test generation has to be set to false, because our verifications support the old style test generation only
SpecFlowUnitTestConverter converter = new SpecFlowUnitTestConverter(new NUnitTestConverter(), new CodeDomHelper(CodeDomProviderLanguage.CSharp), true, false);
var codeNamespace = converter.GenerateUnitTestFixture(feature, className, targetNamespace);
var compileUnit = new CodeCompileUnit();
compileUnit.Namespaces.Add(codeNamespace);
Dictionary <string, string> providerOptions = new Dictionary <string, string>();
providerOptions["CompilerVersion"] = "v3.5";
CSharpCodeProvider codeProvider = new CSharpCodeProvider(providerOptions);
CompilerParameters compilerParameters = new CompilerParameters();
compilerParameters.GenerateInMemory = true;
compilerParameters.TempFiles.KeepFiles = true;
compilerParameters.ReferencedAssemblies.Add(
TestFileHelper.GetAssemblyPath(typeof(GeneratedCodeAttribute))); //System
compilerParameters.ReferencedAssemblies.Add(
TestFileHelper.GetAssemblyPath(typeof(TestAttribute))); //NUnit
compilerParameters.ReferencedAssemblies.Add(
TestFileHelper.GetAssemblyPath(typeof(ITestRunner))); //TechTalk.SpecFlow
var results = codeProvider.CompileAssemblyFromDom(compilerParameters, compileUnit);
if (results.NativeCompilerReturnValue != 0)
{
throw new InvalidOperationException("Test cannot be compiled: " +
string.Join(Environment.NewLine, results.Errors.Cast <CompilerError>().Select(ce => ce.ToString()).ToArray()));
}
Type testType = results.CompiledAssembly.GetType(targetNamespace + "." + className, true);
return(Activator.CreateInstance(testType));
}