I recorded some test cases with CUIT in VS2010. Everything worked fine the day before. So, today I run again, all the test failed, with the warning: The following element is no longer available ... and I got the exception : Can't perform "Click" on the hidden control, which is not true because all the controls are not hidden. I tried on the other machine, and they failed as well.
Does anyone know why it happens? Is it because of the web application for something else? Please help, thanks.
PS: So I tried to record a new test with the same controls that said "hidden controls", and the new test worked!? I don't understand why.
EDIT
The warning "The following element blah blah ..." appears when I tried to capture an element or a control while recording. The source code of the button is said 'hidden'
public HtmlImage UIAbmeldenImage
{
get
{
if ((this.mUIAbmeldenImage == null))
{
this.mUIAbmeldenImage = new HtmlImage(this);
#region Search Criteria
this.mUIAbmeldenImage.SearchProperties[HtmlImage.PropertyNames.Id] = null;
this.mUIAbmeldenImage.SearchProperties[HtmlImage.PropertyNames.Name] = null;
this.mUIAbmeldenImage.SearchProperties[HtmlImage.PropertyNames.Alt] = "abmelden";
this.mUIAbmeldenImage.FilterProperties[HtmlImage.PropertyNames.AbsolutePath] = "/webakte-vnext/content/apps/Ordner/images/logOut.png";
this.mUIAbmeldenImage.FilterProperties[HtmlImage.PropertyNames.Src] = "http://localhost/webakte-vnext/content/apps/Ordner/images/logOut.png";
this.mUIAbmeldenImage.FilterProperties[HtmlImage.PropertyNames.LinkAbsolutePath] = "/webakte-vnext/e.consult.9999/webakte/logout/index";
this.mUIAbmeldenImage.FilterProperties[HtmlImage.PropertyNames.Href] = "http://localhost/webakte-vnext/e.consult.9999/webakte/logout/index";
this.mUIAbmeldenImage.FilterProperties[HtmlImage.PropertyNames.Class] = null;
this.mUIAbmeldenImage.FilterProperties[HtmlImage.PropertyNames.ControlDefinition] = "alt=\"abmelden\" src=\"http://localhost/web";
this.mUIAbmeldenImage.FilterProperties[HtmlImage.PropertyNames.TagInstance] = "1";
this.mUIAbmeldenImage.WindowTitles.Add("Akte - Test Akte Coded UI VS2010");
#endregion
}
return this.mUIAbmeldenImage;
}
}
Although I am running Visual Studio 2012, I find it odd that we started experiencing the same problem on the same day, I can not see any difference in the DOM for the Coded UI Tests I have for my web page, but for some reason VS is saying the control is hidden and specifies the correct ID of the element it is looking for (I verified that the ID is still the same one). I even tried to re-record the action, because I assumed that something must have changed, but I get the same error.
Since this sounds like the same problem, occurring at the same time I am thinking this might be related to some automatic update? That's my best guess at the moment, I am going to look into it, I will update my post if I figure anything out.
EDIT
I removed update KB2870699, which removes some voulnerability in IE, this fixed the problems I was having with my tests. This update was added on the 12. september, so it fits. Hope this helps you. :)
https://connect.microsoft.com/VisualStudio/feedback/details/800953/security-update-kb2870699-for-ie-breaks-existing-coded-ui-tests#tabs
Official link to get around the problem :
http://blogs.msdn.com/b/visualstudioalm/archive/2013/09/17/coded-ui-mtm-issues-on-internet-explorer-with-kb2870699.aspx
The problem is more serious than that! In my case I can't even record new Coded UI Tests. After I click in any Hyper Link of any web page of my application the coded UI test builder cannot record that click "The following element is no longer available....".
Apparently removing the updates, as said by AdrianHHH do the trick!
Shut down VS2010, launch it again "Run as administrator".
There may be a field in the SearchProperties (or possible the FilterProperties) that has a value set by the web site, or that represents some kind of window ID on your desktop. Another possibility is that the web page title changes from day to day or visit to visit. Different executions of the browser or different visits to the web page(s) create different values. Removing these values from the SearchProperties (or FilterProperties) or changing the check for the title from an equals to a contains for a constant part of the title should fix the problem. Coded UI often searches for more values than the minimum set needed.
Compare the search properties etc for the same control in the two recorded tests.
Update based extra detail given in the comments:
I solved a similar problem as follows. I copied property code similar to that shown in your question into a method that called FindMatchingControls. I checked how many controls were returned, in my case up to 3. I examined various properties of the controls found, by writing lots of text to a debug file. In my case I found that the Left and Top properties were negative for the unwanted, ie hidden, controls.
For your code rather than just using the UIAbmeldenImage property, you might call the method below. Change an expression such as
HtmlImage im = UIMap.abc.def.UIAbmeldenImage;
to be
HtmlImage im = FindHtmlHyperLink(UIMap.abc.def);
Where the method is:
public HtmlImage FindHtmlHyperLink(HtmlDocument doc)
{
HtmlImage myImage = new HtmlImage(doc);
myImage.SearchProperties[HtmlImage.PropertyNames.Id] = null;
myImage.SearchProperties[HtmlImage.PropertyNames.Name] = null;
myImage.SearchProperties[HtmlImage.PropertyNames.Alt] = "abmelden";
myImage.FilterProperties[HtmlImage.PropertyNames.AbsolutePath] = "/webakte-vnext/content/apps/Ordner/images/logOut.png";
myImage.FilterProperties[HtmlImage.PropertyNames.Src] = "http://localhost/webakte-vnext/content/apps/Ordner/images/logOut.png";
myImage.FilterProperties[HtmlImage.PropertyNames.LinkAbsolutePath] = "/webakte-vnext/e.consult.9999/webakte/logout/index";
myImage.FilterProperties[HtmlImage.PropertyNames.Href] = "http://localhost/webakte-vnext/e.consult.9999/webakte/logout/index";
myImage.FilterProperties[HtmlImage.PropertyNames.Class] = null;
myImage.FilterProperties[HtmlImage.PropertyNames.ControlDefinition] = "alt=\"abmelden\" src=\"http://localhost/web";
myImage.FilterProperties[HtmlImage.PropertyNames.TagInstance] = "1";
myImage.WindowTitles.Add("Akte - Test Akte Coded UI VS2010");
UITestControlCollection controls = myImage.FindMatchingControls();
if (controls.Count > 1)
{
foreach (UITestControl con in controls)
{
if ( con.Left < 0 || con.Top < 0 )
{
// Not on display, ignore it.
}
else
{
// Select this one and break out of the loop.
myImage = con as HtmlImage;
break;
}
}
}
return myImage;
}
Note that the above code has not been compiled or tested, it should be taken as ideas not as the final code.
I had the same problem on VS 2012. As a workaround, you can remove that step, and re-record it again. That usually works.
One of the biggest problem while analyzing the Coded UI test failures is that the error stack trace indicates the line of code which might be completely unrelated to the actual cause of failure.
I would suggest you to enable HTML logging in your tests - this will display step by step details of how Coded UI tried to execute the tests - with screenshots of your application. It will also highlight the control in red which Coded UI is trying to search/operate upon.This is very beneficial in troubleshooting the actual cause of test failures.
To enable tracing you can just add the below code to your app.config file --
Related
I've a problem with Electron where the app goes blank. i.e. It becomes a white screen. If I open the dev tools it displays the following message.
In ActivityMonitor I can see the number of Electron Helper processes drops from 3 to 2 when this happens. Plus it seems I'm not the only person to come across it. e.g.
Facing "Devtools was disconnected from the page. Once page is reloaded, Devtools will automatically reconnect."
Electron dying without any information, what now?
But I've yet to find an answer that helps. In scenarios where Electron crashes are there any good approaches to identifying the problem?
For context I'm loading an sdk into Electron. Originally I was using browserify to package it which worked fine. But I want to move to the SDKs npm release. This version seems to have introduced the problem (though the code should be the same).
A good bit of time has passed since I originally posted this question. I'll answer it myself in case my mistake can assist anyone.
I never got a "solution" to the original problem. At a much later date I switched across to the npm release of the sdk and it worked.
But before that time I'd hit this issue again. Luckily, by then, I'd added a logger that also wrote console to file. With it I noticed that a JavaScript syntax error caused the crash. e.g. Missing closing bracket, etc.
I suspect that's what caused my original problem. But the Chrome dev tools do the worst thing by blanking the console rather than preserve it when the tools crash.
Code I used to setup a logger
/*global window */
const winston = require('winston');
const prettyMs = require('pretty-ms');
/**
* Proxy the standard 'console' object and redirect it toward a logger.
*/
class Logger {
constructor() {
// Retain a reference to the original console
this.originalConsole = window.console;
this.timers = new Map([]);
// Configure a logger
this.logger = winston.createLogger({
level: 'info',
format: winston.format.combine(
winston.format.timestamp(),
winston.format.printf(({ level, message, timestamp }) => {
return `${timestamp} ${level}: ${message}`;
})
),
transports: [
new winston.transports.File(
{
filename: `${require('electron').remote.app.getPath('userData')}/logs/downloader.log`, // Note: require('electron').remote is undefined when I include it in the normal imports
handleExceptions: true, // Log unhandled exceptions
maxsize: 1048576, // 10 MB
maxFiles: 10
}
)
]
});
const _this = this;
// Switch out the console with a proxied version
window.console = new Proxy(this.originalConsole, {
// Override the console functions
get(target, property) {
// Leverage the identical logger functions
if (['debug', 'info', 'warn', 'error'].includes(property)) return (...parameters) => {
_this.logger[property](parameters);
// Simple approach to logging to console. Initially considered
// using a custom logger. But this is much easier to implement.
// Downside is that the format differs but I can live with that
_this.originalConsole[property](...parameters);
}
// The log function differs in logger so map it to info
if ('log' === property) return (...parameters) => {
_this.logger.info(parameters);
_this.originalConsole.info(...parameters);
}
// Re-implement the time and timeEnd functions
if ('time' === property) return (label) => _this.timers.set(label, window.performance.now());
if ('timeEnd' === property) return (label) => {
const now = window.performance.now();
if (!_this.timers.has(label)) {
_this.logger.warn(`console.timeEnd('${label}') called without preceding console.time('${label}')! Or console.timeEnd('${label}') has been called more than once.`)
}
const timeTaken = prettyMs(now - _this.timers.get(label));
_this.timers.delete(label);
const message = `${label} ${timeTaken}`;
_this.logger.info(message);
_this.originalConsole.info(message);
}
// Any non-overriden functions are passed to console
return target[property];
}
});
}
}
/**
* Calling this function switches the window.console for a proxied version.
* The proxy allows us to redirect the call to a logger.
*/
function switchConsoleToLogger() { new Logger(); } // eslint-disable-line no-unused-vars
Then in index.html I load this script first
<script src="js/logger.js"></script>
<script>switchConsoleToLogger()</script>
I had installed Google Chrome version 79.0.3945.130 (64 bit). My app was going to crash every time when I was in debug mode. I try all the solutions I found on the web but no one was useful. I downgrade to all the previous version:
78.x Crashed
77.x Crashed
75.x Not Crashed
I had to re-install the version 75.0.3770.80 (64 bit). Problem has been solved. It can be a new versions of Chrome problem. I sent feedback to Chrome assistence.
My problem was that I was not loading a page such as index.html. Once I loaded problem went away.
parentWindow = new BrowserWindow({
title: 'parent'
});
parentWindow.loadURL(`file://${__dirname}/index.html`);
parentWindow.webContents.openDevTools();
The trick to debugging a crash like this, is to enable logging, which is apparently disabled by default. This is done by setting the environment variable ELECTRON_ENABLE_LOGGING=1, as mentioned in this GitHub issue.
With that enabled, you should see something along the lines of this in the console:
You can download Google Chrome Canary. I was facing this problem on Google Chrome where DevTools was crashing every time on the same spot. On Chrome Canary the debugger doesn't crash.
I also faced the exact same problem
I was trying to require sqlite3 module from renderer side
which was causing a problem but once i removed the request it was working just fine
const {app , BrowserWindow , ipcMain, ipcRenderer } = require('electron')
const { event } = require('jquery')
const sqlite3 = require('sqlite3').verbose(); // <<== problem
I think the best way to solve this (if your code is really really small) just try to remove functions and run it over and over again eventually you can narrow it down to the core problem
It is a really tedious , dumb and not a smart way of doing it , but hey it worked
I encountered this issue, and couldn't figure out why the the DevTool was constantly disconnecting. So on a whim I launched Firefox Developer edition and identified the cause as an undefined variable with a string length property.
if ( args.length > 1 ) {
$( this ).find( "option" ).each(function () {
$( $( this ).attr( "s-group" ) ).hide();
});
$( args ).show();
}
TL;DR Firefox Developer edition can identify these kinds of problems when Chrome's DevTool fails.
After reading the comments above it is clear to me that there is a problem at least in Chrome that consists of not showing any indication of what the fault comes from. In Firefox, the program works but with a long delay.
But, as Shane Gannon said, the origin of the problem is certainly not in a browser but it is in the code: in my case, I had opened a while loop without adding the corresponding incremental, which made the loop infinite. As in the example below:
var a = 0;
while (a < 10) {
...
a ++ // this is the part I was missing;
}
Once this was corrected, the problem disappeared.
I found that upgrading to
react 17.0.2
react-dom 17.0.2
react-scripts 4.0.3
but also as react-scripts start is being used to run electron maybe its just react scripts that needs updating.
Well I nearly went crazy but with electron the main problem I realized I commented out the code to fetch (index.html)
// and load the index.html of the app.
mainWindow.loadFile('index.html');
check this side and make sure you have included it. without this the page will go black or wont load. so check your index.js to see if there's something to load your index.html file :) feel free to mail : profnird#gmail.com if you need additional help
Downgrade from Electron 11 to Electron 8.2 worked for me in Angular 11 - Electron - Typeorm -sqlite3 app.
It is not a solution as such, but it is an assumption of why the problem.
In the angular 'ngOnInit' lifecycle I put too many 'for' and 'while' loops, one inside the other, after cleaning the code and making it more compact, the problem disappeared, I think maybe because it didn't finish the processes within a time limit I hope someone finds this comment helpful. :)
I have stumbled upon the similar problem, My approach is comment out some line that I just added to see if it works. And if that is the case, those problem is at those lines of code.
for(var i = 0;i<objLen; i+3 ){
input_data.push(jsonObj[i].reading2);
input_label.push(jsonObj[i].dateTime);
}
The console works fine after i change the code to like this.
for(var i = 0;i<objLen; i=i+space ){
input_data.push(jsonObj[i].reading2);
input_label.push(jsonObj[i].dateTime);
}
Open your google dev console (Ctrl + shift + i). Then press (fn + F1) or just F1, then scroll down and click on the Restore defaults and reload.
Recently moved from utilising AWS to Azure for the location of our load test agents, thus making the transition to making full use of VSTS.
It was described that, for the moment, to get a load test file working with VSTS to using our own VMs for testing, we need to provide two context parameters, UseStaticLoadAgents and StaticAgentsGroupName in each loadtest file.
Our load test solution is getting very large, and we have multiple loadtest files where we have to set these two values each time. This leads us into the situation where, if we were to change our agents group name for example, we would have to update each individual load test file with the new information.
Im looking at a way to centralise this until a nicer way is implemented by Microsoft. The idea was to use a load test plugin, to add these context parameters with the plugin drawing the needed values from a centralised config file.
However, it seems that none of the hooks in the load test plugin or simply using the initialise method to manually set these values is working. Likely because they are set after full initialisation.
Has anyone got a nice, code focused solution to manage this and stop us depending on adding brittle values in the editor? Or even gotten the above approach to work?
The loadtest file is the XML file, so you can update it programmatically, for example:
string filePath = #"XXX\LoadTest1.loadtest";
XmlDocument doc = new XmlDocument();
doc.Load(filePath);
XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable);
nsmgr.AddNamespace("ns", "http://microsoft.com/schemas/VisualStudio/TeamTest/2010");
XmlNode root = doc.DocumentElement;
XmlNode nodeParameters = root.SelectSingleNode("//ns:RunConfigurations/ns:RunConfiguration[#Name='Run Settings1']/ns:ContextParameters", nsmgr);
if(nodeParameters!=null)
{
//nodeParameters.SelectSingleNode("//ns:ContextParameter[#Name='UseStaticLoadAgents']").Value = "agent1";
foreach (XmlNode n in nodeParameters.ChildNodes)
{
switch (n.Attributes["Name"].Value)
{
case "Parameter1":
n.Attributes["Value"].Value = "testUpdate";
break;
case "UseStaticLoadAgents":
n.Attributes["Value"].Value = "agent1";
break;
case "StaticAgentsGroupName":
n.Attributes["Value"].Value = "group1";
break;
}
}
}
doc.Save(filePath);
I created custom property attribute to link every system test to its driving requirements which is similar to something described in the link below:
NUnit - Multiple properties of the same name? Linking to requirements
I used the code given in the above link
[Requirements(new string[] { "FR50082", "FR50084" })]
[Test]
public void TestSomething(string a, string b) { // blah, blah, blah
Assert.AreNotEqual(a, b); }
which gets displayed in Test explorer (filter by traits) as :-
Requirements[System.String[]] (1)
TestSomething.....
But this is not what I was expecting. I require every requirement to get displayed individually though they are associated to the same test case in test explorer window.
I want to get it displayed as (in test explorer):-
Requirements[FR50082] (1)
TestSomething.....
Requirements[FR50084] (1)
TestSomething.....
and so on....
So, if I am associating n number of Requirements to a test case, the test explorer should display the same test case n times under different requirements. Please let me know how could this be achieved ??
It sounds like you are heading down the BDD (Behavior Driven Design) route. SpecFlow is a good choice in .Net if you don't mind a VS extension.
The big win for you I think would be that you can reuse step definitions, what you're calling TestSomething. You can set up different contexts, your Requirements, as I'm reading them, and in the Then step call your TestSomething to verify all is well.
I'm trying to serialize objects as JSON with MVC4 WebAPI (RTM - just installed VS2012 RTM today but was having this problem yesterday in the RC) and I'd like for all nulls to be rendered in the JSON output.
Like this:
[{"Id": 1, "PropertyThatMightBeNull": null},{"Id":2, "PropertyThatMightBeNull": null}]
But what Im getting is
[{"Id":1},{"Id":2}]
I've found this Q/A WebApi doesnt serialize null fields but the answer either doesn't work for me or I'm failing to grasp where to put the answer.
Here's what I've tried:
In Global.asax.cs's Application_Start, I added:
var json = GlobalConfiguration.Configuration.Formatters.JsonFormatter;
json.SerializerSettings.NullValueHandling = Newtonsoft.Json.NullValueHandling.Include;
json.SerializerSettings.DefaultValueHandling = Newtonsoft.Json.DefaultValueHandling.Include;
This doesn't (seem to) error and seems to actually execute based on looking at the next thing I tried.
In a controller method (in a subclass of ApiController), added:
base.Configuration.Formatters.JsonFormatter.SerializerSettings.NullValueHandling = Newtonsoft.Json.NullValueHandling.Include;
base.Configuration.Formatters.JsonFormatter.SerializerSettings.DefaultValueHandling = Newtonsoft.Json.DefaultValueHandling.Include;
I say #1 executed because both values in #2 were already set before those lines ran as I stepped through.
In a desperation move (because I REALLY don't want to decorate every property of every object) I tried adding this attrib to a property that was null and absent:
[JsonProperty(DefaultValueHandling = DefaultValueHandling.Include,
NullValueHandling = NullValueHandling.Include)]
All three produce the same JSON with null properties omitted.
Additional notes:
Running locally in IIS (tried built in too), Windows 7, VS2012 RTM.
Controller methods return List -- tried IEnumerable too
The objects I'm trying to serialize are pocos.
This won't work:
var json = GlobalConfiguration.Configuration.Formatters.JsonFormatter;
json.SerializerSettings.NullValueHandling = Newtonsoft.Json.NullValueHandling.Include;
But this does:
GlobalConfiguration.Configuration.Formatters.JsonFormatter.SerializerSettings = new Newtonsoft.Json.JsonSerializerSettings()
{
NullValueHandling = Newtonsoft.Json.NullValueHandling.Include
};
For some odd reason the Newtonsoft.Json.JsonFormatter ignore assigments to the propreties os SerializerSettings.
In order to make your setting work create new instance of .SerializerSettings as shown below:
config.Formatters.JsonFormatter.SerializerSettings = new Newtonsoft.Json.JsonSerializerSettings
{
DefaultValueHandling = Newtonsoft.Json.DefaultValueHandling.Include,
NullValueHandling = Newtonsoft.Json.NullValueHandling.Include,
};
I finally came across this http://forums.asp.net/t/1824580.aspx/1?Serializing+to+JSON+Nullable+Date+gets+ommitted+using+Json+NET+and+Web+API+despite+specifying+NullValueHandling which describes what I was experiencing as a bug in the beta that was fixed for the RTM.
Though I had installed VS2012 RTM, my project was still using all the nuget packages that the beta came with. So I nugetted (nugot?) updates for everything and all is now well (using #1 from my question). Though I'm feeling silly for having burned half a day.
When I saw this answer I was upset because I was already doing this and yet my problem still existed. My problem rooted back to the fact that my object implemented an interface that included a nullable type, so, I had a contract stating if you want to implement me you have to have one of these, and a serializer saying if one of those is null don't include it. BOOM!
I just migrated my language service from VS2008 to VS2010. Everything works fine except for one important thing: I no longer get LanguageService.ParseSource invoked for ParseReason.Check. It do get a single invoke after opening a file. But after editing code, it no longer gets invoked.
Any ideas what could be causing that?
I also migrated a language service from 2008 to 2010. Can you check if you've fallowed all of these steps?
http://msdn.microsoft.com/en-us/library/dd885475.aspx
I didn't have to do anything else, which I verified by diffing the important files in our depot before and after the change.
I don't know if you ever figured your question out, but have you tried making sure that your Source class' LastParseTime is set to 0 when creating it? I seem to recall some issues with Check not happening unless you manually set LastParseTime to 0 when creating your Source object.
Protip: If you use .NET Reflector, you can disassemble all of the base classes for the LanguageService framework and get a pretty good understanding of how it all works under the hood. The classes you'd be interested in live in Microsoft.VisualStudio.Package.LanguageService.10.0.dll, which should be installed in the GAC. I've found this to be unimaginably helpful when trying to figure out why things weren't working in my own Language Service, and being able to step through the source code in the debugger mitigates almost all the pain of working with these frameworks!
When your Source object is initialized, it starts off with a LastParseTime of Int32.MaxValue. The code that causes fires off a ParseRequest with ParseReason.Check checks the LastParseTime value to see if the time since the last change to the text is less than the time it takes to run a parse (or the CodeSenseDelay setting, whichever is greater).
The code that handles the response from ParseSource is supposed to set the LastParseTime, but as far as I can tell, it only does that if the ParseReason is Check.
You can get around this issue by setting Source.LastParseTime = 0 when you initialize your Source. This has the side-effect of setting CompletedFirstParse to true, even if the first parse hasn't finished yet.
Another way to fix this issue is to override Source.OnIdle to fire off the first call to BeginParse() This is the way I would recommend.
public override void OnIdle(bool periodic)
{
// Once first "Check" parse completes, revert to base implementation
if (this.CompletedFirstParse)
{
base.OnIdle(periodic);
}
// Same as base implementation, except we don't check lastParseTime
else if (!periodic || this.LanguageService == null || this.LanguageService.LastActiveTextView == null || (this.IsCompletorActive) || (!this.IsDirty || this.LanguageService.IsParsing))
{
this.BeginParse();
}
}