private string GetNUnitExePath(IFileOperationsExecuter fileOps)
{
if (!string.IsNullOrWhiteSpace(this.ExePath))
return fileOps.GetWorkingDirectory(this.Context.ApplicationId, this.Context.DeployableId ?? 0, this.ExePath);
var configurer = (NUnitConfigurer)this.GetExtensionConfigurer();
if (string.IsNullOrWhiteSpace(configurer.NUnitConsoleExePath))
throw new InvalidOperationException("The path to NUnit was not specified in either the action or the selected NUnit extension's configuration.");
return fileOps.GetWorkingDirectory(this.Context.ApplicationId, this.Context.DeployableId ?? 0, configurer.NUnitConsoleExePath);
}