# UI Testing with iOS Devices.

XCUITest, introduced in iOS 9, is a technology for automating acceptance tests. It works by running your app in a separate process from the test, with the test communicating to the app using a form of IPC (Inter-Process-Communication). Elements are identified via accessibility IDs/values.

## Predicates

You can fetch a group of elements matching a predicate by calling element(matching:) on any XCUIElementQuery. Most objects in XCUITest are XCUIElementQuery’s.

Anything that conforms to XCUIElementAttribute can be queried as part of one of these queries.

## Queries

• Finding text on a Cell
Honestly, I had more luck with app.tables.cells.element(boundBy: 0).firstMatch.staticText[LABEL_ACCESSIBILITY_ID].

## Dismissing a popover

Popover are dismissed by tapping... basically anywhere outside the popover. There’s a specific element to tap that’ll do this:

XCUIApplication().otherElements["PopoverDismissRegion"].tap()