XCTestCase in UITesting: containerURLForSecurityApplicationGroupIdentifier returns nil

Question

Created Jul ’15

Replies 3

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Hi,

I am trying to write some UI Tests in which I want to check something in the shared App Groups container. But when I run

[[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier:@"group.com.zaal.cjournalTestGroup"]

it returns nil.

The target app works perfectly fine, and the "containerURLForSecurityApplicationGroupIdentifier" works there. Do I need to setup something in the UI Testing bundle to get it to work as well? I don't see any place in the project configuration where the UI Testing bundle can get permissions for a shared App Group container. I was assuming it would pick up the settings from the target app and just work.

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Answer 1

zygoat OP

Sep ’15

I'm having the same problem (Xcode 7 beta 6).

The nil return happens when running the test suite on XC Server via a Bot—but it works just fine if I run the tests manually on my local machine.

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Answer 2

honza OP

Sep ’15

Might it be because to get access to the container the app needs to be code-signed, which doesn't necessarily have to be the case when testing on Simulators? We have the exact same problem when we change provisioning profiles and forget to update them & build for simulator. Make sure the app is codesigned.

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Answer 3

zygoat OP

Sep ’15

:Good tip—I think you may be right.

Unfortunately, I realized there is also another problem whereby Xcode seems to wreck the .xctest bundle after code-signing it, thereby breaking the signature. As such I can't even deploy the test suite on a hardware device. This might be the same root cause as the -[NSFileManager containerURLForSecurityApplicationGroupIdentifier:] failure.

I posted about this on Friday: http://lists.apple.com/archives/xcode-users/2015/Sep/msg00060.html

Is this a bug in Xcode 7 beta 6?

b

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