private void Run()
{
if (pendingContexts.Count == 0)
{
throw new InvalidOperationException("No 'Given When Then' has been added. Chain the Given, When and Then method calls to add some.");
}
//first do some cleaning up if possible - we don't need earlier reports.
if (Directory.Exists("Reports"))
{
Directory.Delete("Reports", true);
}
//keep track of the order that tests ran in.
var globalTestNumber = 0;
//work through a copy of the pending contexts to avoid foreach problems.
Parallel.ForEach(pendingContexts, (thenContext) =>
{
//increment test offset.
var testNumber = Interlocked.Increment(ref globalTestNumber);
//construct all web drivers and append them to the wrapper class.
var webDrivers = new List <EventFiringWebDriver>();
//construct all drivers.
Parallel.ForEach(WebDriverConstructors, driverConstructor =>
{
var webDriver = new EventFiringWebDriver(driverConstructor());
lock (webDrivers)
{
webDrivers.Add(webDriver);
}
});
//construct a driver facade that takes care of underlying drivers.
var browserFacade = new ParallelWebDriverFacade(webDrivers);
//get the rest of the contexts.
var whenContext = thenContext.ParentChain;
var givenContext = whenContext.ParentChain;
var startContext = givenContext.ParentChain;
//by now the start context should be the current instance.
Debug.Assert(startContext == this);
//do the next part safely, so that we're sure we can terminate all driver instances left behind.
try
{
//run the given part.
givenContext.Run(browserFacade);
//now that we have the given part, run the when part.
whenContext.Run(browserFacade);
//run the then context.
thenContext.Run(browserFacade);
}
finally
{
//kill all existing browsers in parallel.
Parallel.ForEach(webDrivers, driver =>
{
try
{
driver.Close();
}
catch { }
try
{
driver.Quit();
}
catch { }
try
{
driver.Dispose();
}
catch { }
});
//now let's store the reports we have.
var reports = browserFacade.StepReports.ToArray();
//first figure out how big the image needs to be.
var columns = new List <List <WebDriverStepReport> >();
var offsetGroups = reports.GroupBy(r => r.Offset);
for (var i = 0; i < reports.Length; i++)
{
var report = reports[i];
var screenshot = report.Screenshot;
if (screenshot != null)
{
//generate a path name that tells something about the order, and the order.
var basePath = Path.Combine("Reports", testName, testNumber + "", report.CategoryName);
//prepare a folder structure for this kind of report.
Directory.CreateDirectory(basePath);
//now save the screenshot.
var fileName = string.Format("{0}.{1}.{2}.{3}.png", report.Offset, report.HasFailed ? "Failed" : "Succeeded", report.MethodName, report.DriverName);
var screenshotPath = Path.Combine(basePath, fileName);
screenshot.Save(Path.Combine(basePath, fileName), ImageFormat.Png);
//add it to a concatenated report.
}
}
}
});
}
internal ThenWebDriverFacade(ParallelWebDriverFacade driver)
{
this.driver = driver;
}
