iOS App crashes in during getPageSource() if it has large page source - Error getting main window -25215

[sundarsiv1995]

When I am trying to inspect a app screen which has a PDF document with 21 pages displayed, the app crashes with the below error in appium logs.

[Xcode] 2020-01-09 12:38:52.554368+0530 WebDriverAgentRunner-Runner[423:16389] Internal error: Error Domain=com.apple.dt.xctest.automation-support.error Code=8 "Error getting main window -25215" UserInfo={NSLocalizedDescription=Error getting main window -25215}
[Xcode]
[Xcode] t = 2647.09s Snapshot accessibility hierarchy for app with pid 431
[Xcode]
[Xcode] t = 2647.10s Snapshot accessibility hierarchy for app with pid 431

Note: The app has another screen where PDF is displayed which has only one page. I am able to inspect this page.

Solutions tried:
1.Tried with 1.16 beta version of appium
2.Checked if it is webview. Not a webview.

Please help here.

[mykola-mokhnach]

This error is thrown by XCTest and we cannot do anything about it in Appium. Consider reporting the issue to Apple.

You could try #13595 (comment) as a workaround to get the page source.

[amedvedjev]

@sundarsiv1995 you can also try using "Accessibility Inspector" from xCode with this screen (if you need to inspect it)

[sundarsiv1995]

This error is thrown by XCTest and we cannot do anything about it in Appium. Consider reporting the issue to Apple.

You could try #13595 (comment) as a workaround to get the page source.

@mykola-mokhnach
Can you please help me how to use the mobile: source endpoint when I try to inspect the app through appium inspector.
Do I need to add any capability?

[sundarsiv1995]

Tried adding useJSONSource and snapshotTimeout capability in appium inspector.
Getting the below error:

[WD Proxy] Matched '/source?format=json' to command name 'getPageSource'
[WD Proxy] Proxying [GET /source?format=json] to [GET http://localhost:8100/session/A9DC24CB-7B27-4002-A845-FD6B159806A9/source?format=json] with no body
[HTTP] --> GET /wd/hub/session/be8ac988-5c1d-47a8-9afd-f9556b8a009d/window/current/size
[HTTP] {}
[MJSONWP (be8ac988)] Calling AppiumDriver.getWindowSize() with args: ["current","be8ac988-5c1d-47a8-9afd-f9556b8a009d"]
[XCUITest] Executing command 'getWindowSize'
[Xcode] 2020-01-23 09:54:59.210691+0530 WebDriverAgentRunner-Runner[324:8153] Cannot take the snapshot of Application 'com.sci.beacon-test' after 15 seconds
[Xcode] 2020-01-23 09:54:59.211140+0530 WebDriverAgentRunner-Runner[324:8153] Internal error: Error Domain=com.apple.dt.xctest.automation-support.error Code=8 "Error getting main window -25204" UserInfo={NSLocalizedDescription=Error getting main window -25204}
[Xcode] t = 377.41s Snapshot accessibility hierarchy for app with pid 336
[Xcode]
[Xcode] t = 377.48s Snapshot accessibility hierarchy for app with pid 336
[Xcode]
[Xcode] t = 396.05s Get all elements bound by accessibility element for: Elements matching predicate 'wdUID IN {"05000000-0000-0000-5001-000000000000", "06000000-0000-0000-5001-000000000000", "07000000-0000-0000-5001-000000000000"} AND (1 == 1 OR identifier == 0 OR frame == 0 OR value == 0 OR title == 0 OR label == 0 OR elementType == 0 OR enabled == 0 OR placeholderValue == 0)'

[sundarsiv1995]

@sundarsiv1995 you can also try using "Accessibility Inspector" from xCode with this screen (if you need to inspect it)

@amedvedjev Tried with accessibility inspector. But not getting any properties for that PDF pages. But I am able to get the name, label for the other native buttons present in the screen.

[mykola-mokhnach]

Unfortunately there is nothing we can do there from Appium side. Consider reporting the issue to Apple.

Closed as third party issue