Memory leak when using capability "autoClickAlertSelector"

[lengyue524]

I'm using wda as server running. After 3 ~ 6 hours running wda crash with memory warning.
Device log WebDriverAgentRunner-Runner Received memory warning.

I use Instruments to check where is memory leak from, then I found this:

I'm using capability "autoClickAlertSelector" to auto click some system Alert.

XCUIApplication and XCApplicationQuery is system class, and has Cycles reference.

Is there a way to fix this?

[mykola-mokhnach]

This seems to be a bug in XCTest, however I believe we could reduce its influence in WDA by reducing the amount of XCUIApplication instances that we create: #1049