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SeleniumApp.cs
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SeleniumApp.cs
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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using OpenQA.Selenium.Chromium;
using OpenQA.Selenium.Interactions;
using OpenQA.Selenium.Remote;
using static System.Math;
namespace Uno.UITest.Selenium
{
public partial class SeleniumApp : IApp
{
private readonly ChromiumDriver _driver;
private readonly string _screenShotPath;
private readonly TimeSpan DefaultRetry = TimeSpan.FromMilliseconds(500);
private readonly TimeSpan DefaultTimeout = TimeSpan.FromMinutes(1);
public SeleniumApp(ChromiumDriver driver, string screenShotPath)
{
_driver = driver;
_screenShotPath = screenShotPath;
}
IQueryable<ILogEntry> IApp.GetSystemLogs(DateTime? afterDate)
=> _driver.Manage().Logs.GetLog(LogType.Browser)
.AsQueryable()
.Where(entry => afterDate == null || entry.Timestamp > afterDate)
.Select(entry => new SeleniumLogEntry(entry));
public static SeleniumDriverManager SelectedBrowser { get; set; }
void PerformActions(Action<Actions> action)
{
var actions = new OpenQA.Selenium.Interactions.Actions(_driver);
action(actions);
actions.Perform();
}
void IDisposable.Dispose()
{
_driver.Close();
}
IDevice IApp.Device => new SeleniumDevice(this);
void IApp.Back()
=> _driver.Navigate().Back();
void IApp.ClearText()
=> PerformActions(a =>
a.KeyDown(Keys.Control)
.SendKeys("a")
.KeyUp(Keys.Control)
.SendKeys(Keys.Delete));
void IApp.ClearText(string marked)
=> (this as IApp).ClearText(q => q.Marked(marked));
void IApp.ClearText(Func<IAppQuery, IAppQuery> query)
{
var element = GetSingleElement(query);
PerformActions(a =>
a.KeyDown(element, Keys.Control)
.SendKeys(element, "a"+Keys.Delete)
.KeyUp(element, Keys.Control));
}
void IApp.ClearText(Func<IAppQuery, IAppWebQuery> query) => throw new NotSupportedException();
void IApp.DismissKeyboard() => Console.WriteLine("DismissKeybord has no effect on this platform");
void IApp.DoubleTap(Func<IAppQuery, IAppQuery> query)
{
var q = query(new SeleniumAppQuery(this));
var result = Evaluate(q as SeleniumAppQuery);
if(result is IEnumerable<IWebElement> elements)
{
var count = elements.Count();
if(count == 0)
{
throw new InvalidOperationException("The query returned no results");
}
else if(count > 1)
{
var itemsString = string.Join(", ", elements.Select(e => e.GetAttribute("id")));
throw new InvalidOperationException($"The query returned too many results ({itemsString})");
}
else
{
PerformActions(a => a.DoubleClick(elements.First()));
}
}
}
void IApp.DoubleTap(string marked) => ((IApp)this).Tap(q => q.Marked(marked));
void IApp.DoubleTapCoordinates(float x, float y)
{
PerformActions(a => a
.MoveToElement(_driver.FindElement(By.TagName("body")), 0, 0)
.MoveByOffset((int)x, (int)y)
.DoubleClick());
}
void IApp.DragAndDrop(Func<IAppQuery, IAppQuery> from, Func<IAppQuery, IAppQuery> to) => throw new NotSupportedException();
void IApp.DragAndDrop(string from, string to) => throw new NotSupportedException();
void IApp.DragCoordinates(float fromX, float fromY, float toX, float toY)
{
PerformActions(a => a
.MoveToElement(_driver.FindElement(By.TagName("body")), 0, 0)
.MoveByOffset((int)fromX, (int)fromY)
.ClickAndHold()
);
MoveByOffsetIncremental((int)(toX - fromX), (int)(toY - fromY));
PerformActions(a => a
.Release()
);
}
/// <summary>
/// Move mouse in increments, this is closer to user behaviour and ensures eg that PointerMoved is raised.
/// </summary>
private void MoveByOffsetIncremental(int offsetX, int offsetY)
{
const int consumptionIncr = 10; // Corresponds to moderate mouse speed
var incrX = offsetX > 0 ? consumptionIncr : -consumptionIncr;
var incrY = offsetY > 0 ? consumptionIncr : -consumptionIncr;
var unconsumedX = offsetX;
var unconsumedY = offsetY;
do
{
int currentOffsetX, currentOffsetY;
if (Abs(unconsumedX) > consumptionIncr)
{
currentOffsetX = incrX;
}
else
{
currentOffsetX = unconsumedX;
}
if (Abs(unconsumedY) > consumptionIncr)
{
currentOffsetY = incrY;
}
else
{
currentOffsetY = unconsumedY;
}
PerformActions(a => a.MoveByOffset(currentOffsetX, currentOffsetY));
unconsumedX -= currentOffsetX;
unconsumedY -= currentOffsetY;
}
while (unconsumedX != 0 || unconsumedY != 0);
}
void IApp.EnterText(string marked, string text)
=> (this as IApp).EnterText(q => q.Marked(marked), text);
void IApp.EnterText(string text)
=> PerformActions(a => a.SendKeys(text));
void IApp.EnterText(Func<IAppQuery, IAppWebQuery> query, string text)
=> throw new NotSupportedException();
void IApp.EnterText(Func<IAppQuery, IAppQuery> query, string text)
{
var element = GetSingleElement(query);
PerformActions(a => a.SendKeys(element, text));
}
IAppResult[] IApp.Flash(string marked) => throw new NotSupportedException();
IAppResult[] IApp.Flash(Func<IAppQuery, IAppQuery> query) => throw new NotSupportedException();
object IApp.Invoke(string methodName, object[] arguments)
{
var args = string.Join(", ", arguments.Select(a => $"\'{a}\'"));
var script = $"return {methodName}({args});";
return _driver.ExecuteScript(script);
}
object IApp.Invoke(string methodName, object argument)
{
var script = $"return {methodName}(\'{argument}\');";
return _driver.ExecuteScript(script);
}
void IApp.PinchToZoomIn(string marked, TimeSpan? duration) => throw new NotSupportedException();
void IApp.PinchToZoomIn(Func<IAppQuery, IAppQuery> query, TimeSpan? duration) => throw new NotSupportedException();
void IApp.PinchToZoomInCoordinates(float x, float y, TimeSpan? duration) => throw new NotSupportedException();
void IApp.PinchToZoomOut(string marked, TimeSpan? duration) => throw new NotSupportedException();
void IApp.PinchToZoomOut(Func<IAppQuery, IAppQuery> query, TimeSpan? duration) => throw new NotSupportedException();
void IApp.PinchToZoomOutCoordinates(float x, float y, TimeSpan? duration) => throw new NotSupportedException();
void IApp.PressEnter()
=> PerformActions(a => a.SendKeys(Keys.Return));
void IApp.PressVolumeDown() => throw new NotSupportedException();
void IApp.PressVolumeUp() => throw new NotSupportedException();
IAppResult[] IApp.Query(Func<IAppQuery, IAppQuery> query)
{
var q = query(new SeleniumAppQuery(this));
var result = Evaluate(q as SeleniumAppQuery);
if(result is IEnumerable<IWebElement> elements)
{
return ToAppResults(elements);
}
return Array.Empty<IAppResult>();
}
string[] IApp.Query(Func<IAppQuery, IInvokeJSAppQuery> query) => throw new NotSupportedException();
IAppResult[] IApp.Query(string marked)
=> (this as IApp).Query(q => q.Marked(marked));
IAppWebResult[] IApp.Query(Func<IAppQuery, IAppWebQuery> query) => throw new NotSupportedException();
T[] IApp.Query<T>(Func<IAppQuery, IAppTypedSelector<T>> query)
{
var q = query(new SeleniumAppQuery(this));
return new[] { (T)Convert.ChangeType(EvaluateTypeSelector<T>(q as SeleniumAppTypedSelector<T>), typeof(T), CultureInfo.InvariantCulture) };
}
void IApp.Repl() => throw new NotSupportedException();
FileInfo IApp.Screenshot(string title)
{
var shot = _driver.GetScreenshot();
var fileName = Path.Combine(_screenShotPath, title + ".png");
shot.SaveAsFile(fileName);
return new FileInfo(fileName);
}
void IApp.SetOrientationLandscape() => Console.WriteLine($"SetOrientationLandscape is not supported by this platform");
void IApp.SetOrientationPortrait() => Console.WriteLine($"SetOrientationPortrait is not supported by this platform");
void IApp.SetSliderValue(string marked, double value) => throw new NotSupportedException();
void IApp.SetSliderValue(Func<IAppQuery, IAppQuery> query, double value) => throw new NotSupportedException();
void IApp.SwipeLeftToRight(Func<IAppQuery, IAppWebQuery> query, double swipePercentage, int swipeSpeed, bool withInertia) => throw new NotSupportedException();
void IApp.SwipeLeftToRight(string marked, double swipePercentage, int swipeSpeed, bool withInertia) => throw new NotSupportedException();
void IApp.SwipeLeftToRight(double swipePercentage, int swipeSpeed, bool withInertia) => throw new NotSupportedException();
void IApp.SwipeLeftToRight(Func<IAppQuery, IAppQuery> query, double swipePercentage, int swipeSpeed, bool withInertia) => throw new NotSupportedException();
void IApp.SwipeRightToLeft(double swipePercentage, int swipeSpeed, bool withInertia) => throw new NotSupportedException();
void IApp.SwipeRightToLeft(Func<IAppQuery, IAppWebQuery> query, double swipePercentage, int swipeSpeed, bool withInertia) => throw new NotSupportedException();
void IApp.SwipeRightToLeft(Func<IAppQuery, IAppQuery> query, double swipePercentage, int swipeSpeed, bool withInertia) => throw new NotSupportedException();
void IApp.SwipeRightToLeft(string marked, double swipePercentage, int swipeSpeed, bool withInertia) => throw new NotSupportedException();
void IApp.Tap(string marked) => ((IApp)this).Tap(q => q.Marked(marked));
void IApp.Tap(Func<IAppQuery, IAppWebQuery> query) => throw new NotSupportedException();
void IApp.Tap(Func<IAppQuery, IAppQuery> query)
{
var q = query(new SeleniumAppQuery(this));
var result = Evaluate(q as SeleniumAppQuery);
if(result is IEnumerable<IWebElement> elements)
{
var count = elements.Count();
if(count == 0)
{
throw new InvalidOperationException("The query returned no results");
}
else if(count > 1)
{
var itemsString = string.Join(", ", elements.Select(e => e.GetAttribute("id")));
throw new InvalidOperationException($"The query returned too many results ({itemsString})");
}
else
{
PerformActions(a => a.Click(elements.First()));
}
}
}
void IApp.TapCoordinates(float x, float y)
{
PerformActions(a => a
.MoveToElement(_driver.FindElement(By.TagName("body")), 0, 0)
.MoveByOffset((int)x, (int)y)
.Click());
}
void IApp.TouchAndHold(Func<IAppQuery, IAppQuery> query) => throw new NotSupportedException();
void IApp.TouchAndHold(string marked) => throw new NotSupportedException();
void IApp.TouchAndHoldCoordinates(float x, float y) => throw new NotSupportedException();
void IApp.WaitFor(Func<bool> predicate, string timeoutMessage, TimeSpan? timeout, TimeSpan? retryFrequency, TimeSpan? postTimeout)
{
var sw = Stopwatch.StartNew();
timeout = timeout ?? DefaultTimeout;
retryFrequency = retryFrequency ?? TimeSpan.FromMilliseconds(500);
timeoutMessage = timeoutMessage ?? "Timed out waiting for element...";
while(sw.Elapsed < timeout)
{
if(predicate())
{
return;
}
Thread.Sleep(retryFrequency.Value);
}
throw new TimeoutException(timeoutMessage);
}
IAppWebResult[] IApp.WaitForElement(Func<IAppQuery, IAppWebQuery> query, string timeoutMessage, TimeSpan? timeout, TimeSpan? retryFrequency, TimeSpan? postTimeout) => throw new NotSupportedException();
IAppResult[] IApp.WaitForElement(string marked, string timeoutMessage, TimeSpan? timeout, TimeSpan? retryFrequency, TimeSpan? postTimeout)
=> (this as IApp).WaitForElement(
query: q => q.Marked(marked),
timeoutMessage: timeoutMessage,
timeout: timeout,
retryFrequency: retryFrequency,
postTimeout: postTimeout);
IAppResult[] IApp.WaitForElement(
Func<IAppQuery, IAppQuery> query,
string timeoutMessage,
TimeSpan? timeout,
TimeSpan? retryFrequency,
TimeSpan? postTimeout)
{
var sw = Stopwatch.StartNew();
timeout = timeout ?? DefaultTimeout;
retryFrequency = retryFrequency ?? DefaultRetry;
timeoutMessage = timeoutMessage ?? "Timed out waiting for element...";
while(sw.Elapsed < timeout)
{
var results = (this as IApp).Query(query);
if(results.Any())
{
return results;
}
Thread.Sleep(retryFrequency.Value);
}
throw new TimeoutException(timeoutMessage);
}
void IApp.WaitForNoElement(Func<IAppQuery, IAppQuery> query, string timeoutMessage, TimeSpan? timeout, TimeSpan? retryFrequency, TimeSpan? postTimeout)
{
var sw = Stopwatch.StartNew();
timeout = timeout ?? DefaultTimeout;
retryFrequency = retryFrequency ?? DefaultRetry;
timeoutMessage = timeoutMessage ?? "Timed out waiting for element...";
while(sw.Elapsed < timeout)
{
var results = (this as IApp).Query(query);
if(!results.Any())
{
return;
}
Thread.Sleep(retryFrequency.Value);
}
throw new TimeoutException(timeoutMessage);
}
void IApp.WaitForNoElement(string marked, string timeoutMessage, TimeSpan? timeout, TimeSpan? retryFrequency,
TimeSpan? postTimeout)
=> (this as IApp).WaitForNoElement(
query: q => q.Marked(marked),
timeoutMessage: timeoutMessage,
timeout: timeout,
retryFrequency: retryFrequency,
postTimeout: postTimeout);
void IApp.WaitForNoElement(
Func<IAppQuery, IAppWebQuery> query,
string timeoutMessage,
TimeSpan? timeout,
TimeSpan? retryFrequency,
TimeSpan? postTimeout) => throw new NotSupportedException();
private IAppResult[] ToAppResults(IEnumerable<IWebElement> elements)
{
return elements.Select(e => new SeleniumAppResult(e)).ToArray();
}
private object Evaluate(SeleniumAppQuery q)
{
object currentItem = null;
foreach(var item in q.QueryItems)
{
switch(item)
{
case SeleniumAppQuery.SearchQueryItem query:
if(currentItem == null)
{
currentItem = _driver.FindElements(By.XPath(query.Query));
}
else if(currentItem is IEnumerable<IWebElement> items)
{
var result = items.SelectMany(i => i.FindElements(By.XPath("." + query.Query))).ToArray();
currentItem = result;
}
else
{
throw new InvalidOperationException($"Unable to execute a search on {currentItem?.GetType()}");
}
break;
}
}
return currentItem;
}
private object EvaluateTypeSelector<T>(SeleniumAppTypedSelector<T> selector)
{
if(selector.Invocations.Count() > 1)
{
throw new NotSupportedException($"Multiple invocations are not supporte in IAppTypedSelector");
}
var invocation = selector.Invocations.First();
var evaluationResult = Evaluate(selector.Parent as SeleniumAppQuery);
if(evaluationResult is IEnumerable<IWebElement> elements)
{
if(elements.FirstOrDefault() is IWebElement element)
{
var xamlHandle = element is IWebElement we ? we.GetAttribute("xamlhandle") : "";
var args = string.Join(", ", invocation.Args.Select(a => $"\'{a}\'"));
var script = $"return {invocation.MethodName}({xamlHandle}, {args});";
return _driver.ExecuteScript(script);
}
else
{
return null;
}
}
throw new InvalidOperationException($"Unable to invoke {invocation.MethodName} {evaluationResult}");
}
private IWebElement GetSingleElement(Func<IAppQuery, IAppQuery> query)
{
var elements = (this as IApp).Query(query);
if(elements.Length == 1)
{
return (elements[0] as SeleniumAppResult).Source;
}
else if(elements.Length == 0)
{
throw new InvalidOperationException($"Unable to find element");
}
else if(elements.Length > 1)
{
throw new InvalidOperationException($"Too many elements matching");
}
throw new InvalidOperationException($"Invalid query results");
}
}
}