I'm trying to test for file chooser availability. I assumed an error would be returned if none was available, however, this is not the case.
Here's my code:
public void doImport() {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("file/*");
intent.addCategory(Intent.CATEGORY_OPENABLE);
try {
startActivityForResult(Intent.createChooser(intent, "Select a File to Import"), IMPORT_RACES_CODE);
} catch (android.content.ActivityNotFoundException ex) {
// Potentially direct the user to the Market with a Dialog
Utils.Error(this, "THERE WAS NO NAVIGATOR FOUND, Install a navigator!");
} catch (Exception e) {
Utils.Error(this, "Some other error occurred!");
}
}
No Exception is being sent back to my routine, though. The OS seems to be handling the error and generating a dialog box stating "No apps can perform this action."
Any idea what I'm doing wrong here?
Thanks!
Actually, found the answer in this thread:
Android : Can I use this intent from a 3rd party application?
See the "isIntentAvailable" routine posted by the responder.
Thanks, all!
Related
I am using the firebase auth now I want to show a different message in UI for every error message
You have to check for specific error messages in your catch block and add custom handling.
You don't mention the language you're working in (and I'm not familiar with all of the different libraries), but C# will throw a FirebaseAuthException containing the property AuthErrorCode which is an enum representing the error. You could check that in, say, a switch statement to get the required message.
try {
userRecord = await _FirebaseAuth.GetUserByEmailAsync(email, token)
.ConfigureAwait(false);
}
catch (FirebaseAuthException ex) {
if (ex.AuthErrorCode == AuthErrorCode.UserNotFound) {
DisplayError($"Error retrieving user record for {email}");
}
}
I am trying to integrate the Extent Reports with Selenium WebDriver Event listeners so that after every action (like navigateTo, clickon, elementChangeValue, etc) the logs get added to the extent report for every action and exceptions. Any thoughts on how can I achieve this since I think I cant pass the EventTest object as a parameter in extended/implemented WebDriverEventListener's methods.
I don't know if that is possible but you can create you own methods for navigateTo, clickon, elementChangeValue, etc and add the actions like steps in the extent report.
For example:
public void navigateTo(String url) throws Exception {
driver.get(url);
try {
driver.findElement(By.className("some_element_in_page"));
TestListener.getExtentTest().log(Status.INFO, "Login successful");
} catch (Exception e) {
TestListener.getExtentTest().log(Status.FAIL, "Login failed");
}
}
Here is a tutorial that might help you.
I am developing simple chat application using CWE which sends messages by using contextual data. I'm having "Specified method is not supported" exception message. This exception occurs when I try to start chat with group. one-to-one chat works fine with no exception. since I'm having same code on both sender & receiver side, I'm confused that how to make this work. Please help.
My code snippet as as follows.
void method1()
{
//
//here I have code to send an IM saying "lets chat in extension window"
//
try
{
Dictionary<ContextType, object> context = new Dictionary<ContextType, object>();
context.Add(ContextType.ApplicationId, "{1226271D-64C9-4F24-B416-E6A583F45A1C}");
context.Add(ContextType.ApplicationData, "initial_data_request");
try { IAsyncResult res = conversation.BeginSendInitialContext(context, null, null); }
catch (Exception e1)
{
MessageBox.Show(e1.Data+"\n\n"+e1.Message);
}
}
catch (Exception ee)
{
MessageBox.Show("Client Platform Exception: " + ee.Message);
}
}
This is the method I call when my application starts. It is supposed to send initial context so that receiver clients when receive this should open my extension application.
I found the answer. It is showing that exception because contextual data will not work in a group conversation.
Found the related thread here..
http://social.msdn.microsoft.com/Forums/lync/en-US/b4e46648-7097-4348-8327-6864f1c12ab2/contextdata-in-a-group-conversation?forum=communicatorsdk
I've seen a number of posts and articles but am not able to see the solution crisply.
I've installed Elmah.MVC via NuGet and have commented out this line from FilterConfig.cs:
//filters.Add(new HandleErrorAttribute());
So that Elmah would pick up the errors.
It works when I provide an invalid action name and I get a yellow page as well as an email.
I want to know about two other types of errors that my code may generate... how are we supposed to handle them:
1.E.g. if my repository or manager (business logic) layer throws an exception when trying to access database or send an email etc.
a. Is the correct way to NOT implement any kind of try catch in Controllers (or anywhere else for that matter) and let Elmah take care of exceptions?
b. If so, and if it shows a yellow error page, how can we show a view of our own liking?
2.If my view contains ajax calls, e.g. via jqgrid, and behind the scenes there are errors, I've noticed they also get picked up properly by Elmah. But how do I show some kind of an error message to the user as well?
Thanks
Here is what I did:
In controller, I placed try catch:
try
{
//model = getmodelfromdb();
return View("MyView", model);
}
catch (Exception ex)
{
Elmah.ErrorSignal.FromCurrentContext().Raise(ex);
return View("../Error/ShowException", ex);
}
For custom view for 404, I did this in global.asax:
protected void Application_OnError( )
{
var exception = Server.GetLastError( );
Elmah.ErrorSignal.FromCurrentContext().Raise(exception);
Helper.SetSessionValue(SessionKeys.EXCEPTION, exception);
Response.Redirect( "~/Error/ShowException");
}
For jqgrid, I did this in my controller:
[HttpPost]
public ActionResult ListRecords( int page , DateTime? fromdate , DateTime? todate)
{
try
{
var list = FetchListFromDB();
var result = new
{
total = Math.Ceiling(list.Count / (decimal)Helper.PAGE_SIZE),
page = page, //--- current page
records = list.Count, //--- total items
rows = list.List.Select(x => new
{
id = x.EntityID,
cell = new string[]
{
x.Property1,
x.Property2
}
}).ToArray()
};
return Json(result, JsonRequestBehavior.AllowGet);
}
catch (Exception ex)
{
var result = new
{
errorMessage = "An unexpected error occurred while fetching data. An automatic email has been generated for the support team who will address this issue shortly. Details: " + ex.Message,
records = 0
};
Elmah.ErrorSignal.FromCurrentContext().Raise(ex);
return Json(result, JsonRequestBehavior.AllowGet);
}
And this in the View (in the jqgrid definition):
loadComplete:function(data)
{
if (data.errorMessage)
{
alert(data.errorMessage);
}
},
In a general ajax scenario:
success: function(data)
{
if (data.errorMessage)
{
alert(data.errorMessage);
}
else
{
//...
}
},
a. Is the correct way to NOT implement any kind of try catch in Controllers (or anywhere else for that matter) and let Elmah take care of exceptions?
I'd say that Elmah doesn't "take care" of exceptions, it records them. Ideally, you should try to handle the errors - by all means log them, but also add logic to deal with them so that they don't interrupt the user's workflow.
I'd wrap logic in try blocks, and in the catch use
Elmah.ErrorSignal.FromCurrentContext().Raise(exception);
to record anything that goes wrong. Immediately after that line, however, I'd then do something to try to recover from the exception - catch specific exception types, never just catch (Exception e), and deal with them after logging them. The idea is that you should be reviewing your logs, working out what's causing the exceptions, and improving your program so that it doesn't throw exceptions any more.
To show your own error pages, there's the HandleErrorAttribute, or if you don't want to use that there's also the controller's OnException() method, which is called when a controller action method quits with an exception rather than finishing normally. An ExceptionContext object is passed into that method, so you can use that to get the exception that was thrown and log it, do any cleanup that might be required etc.
I know i'm very late to the party but I stumbled upon this answer while searching something similar form Google.
I don't like using try catch blocks everywhere in my code, especially in web apps. I let Elmah catch everything and log it behind the scenes. Then in the web.config file you can redirect based on the error type...
<customErrors mode="RemoteOnly" defaultRedirect="~/Error" >
<error statusCode="500" redirect="~/Error"/>
<error statusCode="404" redirect="~/NotFound"/>
</customErrors>
I have a few NUnit tests that run Selenium.
There are some prerequisite to some tests. An example for this would be logging in to our website.
We use a standard test user for test A, but if that user doesn't exist for whatever reason, we'll get a test failure with nothing useful (Selenium will just report it couldn't find the element at line 50). So I planned to check for the user's existence before we try to run the test - in the TextFixtureSetUp method.
I have a check to ensure the user exists, and if not, throw a helpful error message.
For example:
[TestFixtureSetUp]
public void SetUp()
{
bool userExists = userManager.GetUserByEmailAddress("someuser#fish.com") != null;
if (!userExists)
{
throw new Exception("Test user someuser#fish.com doesn't exist.");
}
}
vs
[TestFixtureSetUp]
public void SetUp()
{
bool userExists = userManager.GetUserByEmailAddress("someuser#fish.com") != null;
if (!userExists)
{
Assert.Fail("Test user someuser#fish.com doesn't exist.");
}
}
My question is this a good idea? Should I throw an exception or use Assert.Fail()? Am I thinking about this in the wrong way, or is it something doesn't matter really.
Reason to throw exception - you can catch it later on and try to use another user.
Reason to fail asserrt - when user is not found, it means end to the testmodel.
If you go the exception way - think about GetUserByEmailAddress will be throwing it if it does not find the right user...
Instead of Assert.Fail() raising AssertionException, I would rather use Assert.Inconclusive() or better Assume.That(userManager.GetUserByEmailAddress("someuser#fish.com"), Is.Not.Null) to raise InconclusiveException in this case.
You may want to watch it here: https://docs.nunit.org/articles/nunit/writing-tests/Assumptions.html