Tests capturing messages and exceptions on iOS are not being sent to the sentry project

[buenaflor]

Problem Statement

Capturing messages and exceptions on iOS tests doesn't send them to the sentry project.

• Due to threading, the test finishes before this async block finishes: https://github.com/getsentry/sentry-cocoa/blob/c51bd77615c8685569ad3da7bad7a001479ce110/Sources/Sentry/SentryHttpTransport.m#L92 (easily fixed)
• SSL errors occur when trying to send an envelope

[marandaneto]

@buenaflor does the iOS SDK has a flush method that awaits the async dispatch to be finished?

[marandaneto]

@buenaflor can you link the SSL issue? that is strange, we didn't run into this issue anywhere else.

[buenaflor]

@marandaneto

I have a fix ready for the async part but the largest problem is the ssl error.
Here is a snippet of the error:

Request failed: Error Domain=NSURLErrorDomain 
Code=-1200 
"An SSL error has occurred and a secure connection to the server cannot be made." 
UserInfo={
    NSErrorFailingURLStringKey=https://o447951.ingest.sentry.io/api/5903800/envelope/, 
    NSLocalizedRecoverySuggestion=Would you like to connect to the server anyway?, 
    _kCFStreamErrorDomainKey=3, 
    _NSURLErrorFailingURLSessionTaskErrorKey=LocalDataTask <C6DB900D-8382-4009-8606-7860E11552FA>.<2>, 
    _NSURLErrorRelatedURLSessionTaskErrorKey=(
        "LocalDataTask <C6DB900D-8382-4009-8606-7860E11552FA>.<2>"
    ), 
    NSLocalizedDescription=An SSL error has occurred and a secure connection to the server cannot be made., 
    NSErrorFailingURLKey=https://o447951.ingest.sentry.io/api/5903800/envelope/, 
    NSUnderlyingError=0x6000020d50e0 {
        Error Domain=kCFErrorDomainCFNetwork 
        Code=-1200 
        "(null)" 
        UserInfo={
            _kCFStreamPropertySSLClientCertificateState=0, 
            _kCFNetworkCFStreamSSLErrorOriginalValue=-9836, 
            _kCFStreamErrorDomainKey=3, 
            _kCFStreamErrorCodeKey=-9836, 
            _NSURLErrorNWPathKey=satisfied (Path is satisfied), 
            interface: en0[802.11]
        }
    }, 
    _kCFStreamErrorCodeKey=-9836
}

What I've tried so far to fix it:

• Set NSAllowsArbitraryLoads to true in NSAppTransportSecurity in info.plist
• Create a custom NSUrlSessionDelegate and pass it to the Sentry SDK

To further test it I tried to send a request to httpbin.org/status/404 and it also failed due to a very similar ssl error at first but I was able to fix that with the two options above but the error when sending an event to sentry was still there.

It's strange but only happens in the Kotlin Multiplatform test suite. I'll try to see if that happens in tests directly in the iOS project.