Compose UI Testing — Actions

Source: https://developer.android.com/develop/ui/compose/testing/apis, https://developer.android.com/reference/kotlin/androidx/compose/ui/test/SemanticsNodeInteraction, https://developer.android.com/reference/kotlin/androidx/compose/ui/test/TouchInjectionScope

Purpose

Actions inject simulated user events — clicks, text entry, scrolls, touch gestures, key presses — onto Compose UI elements found by finders.

When to Use

• Simulating taps/clicks on buttons, toggles, or links.
• Entering text into text fields via IME-style injection.
• Scrolling to off-screen items in LazyColumn/LazyRow before interacting with them.
• Performing swipe, pinch, long-press, or custom touch gestures.
• Sending key events to focused components.
• Invoking custom semantics actions defined by composables.

Basic Usage