public void UnapprovedNamespace_ApplyFix_NoDiagnostic()
        {
            var sampleCode = @"
namespace NationalInstruments.Design.Toolbar
{
    class Program
    {
        static void Main(string[] args)
        {
        }
    }
}";

            using (var testState = new TestState())
            {
                var approvedNamespaceFiles = testState.GetApprovedNamespaces();
                var test         = new AutoTestFile(sampleCode);
                var testAfterFix = new TestFile(sampleCode);

                VerifyFix(test, testAfterFix, additionalTestFiles: null, additionalFiles: approvedNamespaceFiles);
                testState.AssertNamespaceExistsInApprovedNamespacesFile("NationalInstruments.Design.Toolbar");
                VerifyDiagnostics(test, approvedNamespaceFiles);
            }
        }