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Options

The following options allow to adjust the behavior of user-event APIs. They can be applied per setup().

advanceTimers​

If you are using fake timers, you need to advance your timers when we internally delay subsequent code.

(delay: number) => Promise<void> | void

default: () => Promise.resolve()

applyAccept​

When using upload(), automatically discard files that don't match an accept property if such property exists on the element.

default: true

autoModify​

We intend to automatically apply modifier keys for printable characters in the future.
I.e. A implying {Shift>}a{/Shift} if caps lock is not active.

This options allows you to opt out of this change in foresight.
The feature therefore will not constitute a breaking change.

default: true

delay​

Between some subsequent inputs like typing a series of characters the code execution is delayed per setTimeout for (at least) delay milliseconds.

This moves the next changes at least to the next macro task and allows other (asynchronous) code to run between events.

null prevents setTimeout from being called.

default: 0

document​

The document.

This defaults to the owner document of an element if an API is called directly with an element and without setup. Otherwise it falls back to the global document.

default: element.ownerDocument ?? globalThis.document

keyboardMap​

An array of keyboard keys the keyboard device consists of.

This allows to plug in different layouts / localizations.

default: A "standard" US-104-QWERTY keyboard.

pointerEventsCheck​

The pointer API includes a check if an element has or inherits pointer-events: none.
This check is known to be expensive and very expensive when checking deeply nested nodes.

This option determines how often the pointer related APIs perform the check.

This is a binary flag option. You can combine multiple Levels.

  • PointerEventsCheckLevel.Never:
    No pointer events check
  • PointerEventsCheckLevel.EachTarget:
    Check each event target once
  • PointerEventsCheckLevel.EachApiCall:
    Check each event target once per API
  • PointerEventsCheckLevel.EachTrigger:
    Check pointer events on every user interaction that triggers a bunch of events. E.g. once for releasing a mouse button even though this triggers pointerup, mouseup, click, etc...

default: PointerEventsCheckLevel.EachApiCall

pointerMap​

An array of available pointer keys.

This allows to plug in different pointer devices.

default: A simple mouse and a touchscreen

skipAutoClose​

type() automatically releases any keys still pressed at the end of the call.
This option allows to opt out of this feature.

default: false

skipClick​

type() implies a click on the element.
This option allows to opt out of this feature.

default: false

skipHover​

click() implies moving the cursor to the target element first.
This option allows to opt out of this feature.

default: false

writeToClipboard​

Write selected data to Clipboard API when a cut or copy is triggered. The Clipboard API is usually not available to test code. Our setup() replaces the navigator.clipboard property with a stub.

default when calling the APIs directly: false
default when calling the APIs on an instance from setup(): true