Class: TestEngine<T>

Defined in: packages/core/src/TestEngine.ts:12

Root driver used for driving a complete scene in a test. It inherits all functionality from ComponentDriver and adds a clean up hook so that tests can reliably dispose of resources.

Extends

• ComponentDriver<T>

Type Parameters

T

T extends ScenePart

Constructors

Constructor

new TestEngine<T>(locator, interactor, option?, cleanUp?): TestEngine<T>

Defined in: packages/core/src/TestEngine.ts:23

Construct a TestEngine instance.

Parameters

locator

PartLocator

Root locator for the scene.

interactor

Interactor

Low level interactor used by drivers.

option?

IComponentDriverOption<T>

Optional driver configuration.

cleanUp?

() => Promise<void>

Hook executed when cleanUp is called.

Returns

TestEngine<T>

Overrides

ComponentDriver.constructor

Accessors

driverName

Get Signature

get driverName(): string

Defined in: packages/core/src/TestEngine.ts:43

Identifier for this driver. Used mainly by the debugging utilities.

Returns

string

Overrides

ComponentDriver.driverName

Methods

cleanUp()

cleanUp(): Promise<void>

Defined in: packages/core/src/TestEngine.ts:36

Run the clean up hook that was provided during construction.

Returns

Promise<void>

Inherited members (20)

Properties

commutableOption

readonly commutableOption: CommutableComponentDriverOption

Defined in: packages/core/src/drivers/ComponentDriver.ts:45

The component-agnostic slice of the constructor option that is safe to share across the whole driver tree — everything the constructor received EXCEPT the component-specific parts, which each driver owns for itself. Parent drivers pass this straight to the constructors of children they create dynamically (see the list helpers). See CommutableComponentDriverOption.

Inherited from

ComponentDriver.commutableOption

---

interactor

readonly interactor: Interactor

Defined in: packages/core/src/TestEngine.ts:25

Low level interactor used by drivers.

Inherited from

ComponentDriver.interactor

Accessors

locator

Get Signature

get locator(): PartLocator

Defined in: packages/core/src/drivers/ComponentDriver.ts:115

Return the locator of the component

Returns

PartLocator

The locator which helps locate the root of the component

Inherited from

ComponentDriver.locator

---

parts

Get Signature

get parts(): ScenePartDriver<T>

Defined in: packages/core/src/drivers/ComponentDriver.ts:108

Return driver instance of all the named parts

Returns

ScenePartDriver<T>

Return driver instance of all the named parts

Inherited from

ComponentDriver.parts

Methods

click()

click(option?): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:181

Parameters

option?

Partial<ClickOption>

Returns

Promise<void>

Inherited from

ComponentDriver.click

---

exists()

exists(): Promise<boolean>

Defined in: packages/core/src/drivers/ComponentDriver.ts:177

Whether the component exists/attached to the DOM

Returns

Promise<boolean>

true if the component is attached to the DOM, false otherwise

Inherited from

ComponentDriver.exists

---

focus()

focus(option?): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:224

Parameters

option?

Partial<FocusOption>

Returns

Promise<void>

Inherited from

ComponentDriver.focus

---

getAttribute()

getAttribute(attributeName): Promise<Optional<string>>

Defined in: packages/core/src/drivers/ComponentDriver.ts:169

Parameters

attributeName

string

Returns

Promise<Optional<string>>

Inherited from

ComponentDriver.getAttribute

---

getText()

getText(): Promise<Optional<string>>

Defined in: packages/core/src/drivers/ComponentDriver.ts:165

Get the combined text content of the component

Returns

Promise<Optional<string>>

If the component exists and has content, it should return the text or otherwise undefined

Inherited from

ComponentDriver.getText

---

hover()

hover(option?): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:185

Parameters

option?

Partial<HoverOption>

Returns

Promise<void>

Inherited from

ComponentDriver.hover

---

isVisible()

isVisible(): Promise<boolean>

Defined in: packages/core/src/drivers/ComponentDriver.ts:328

Whether the component is visible. Visibility is defined that the component does not have the CSS property display: none, visibility: hidden, or opacity: 0. However this does not check whether the component is within the viewport.

Returns

Promise<boolean>

true if the component is visible, false otherwise

Inherited from

ComponentDriver.isVisible

---

pressKey()

pressKey(key, option?): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:233

Dispatch a keyboard key press on the component. See Interactor.pressKey.

Parameters

key

string

A KeyboardEvent.key value, e.g. 'Escape', 'Backspace', 'Enter'

option?

Partial<PressKeyOption>

Reserved for future modifier-key support

Returns

Promise<void>

Inherited from

ComponentDriver.pressKey

---

runtimeCssSelector()

runtimeCssSelector(): Promise<string>

Defined in: packages/core/src/drivers/ComponentDriver.ts:377

Get the runtime CSS selector of the component. This is useful for debugging and testing purposes.

Returns

Promise<string>

The runtime CSS selector of the component

Inherited from

ComponentDriver.runtimeCssSelector

---

scrollIntoView()

scrollIntoView(): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:266

Scroll the component into the viewport. See Interactor.scrollIntoView.

jsdom has no layout engine, so the scroll is a no-op there and behavioral assertions (visibility, offset) are E2E-only.

Returns

Promise<void>

Inherited from

ComponentDriver.scrollIntoView

---

typeText()

typeText(text): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:242

Type text into the component as real per-character keystrokes, inserting at the current caret without clearing. See Interactor.typeText.

Parameters

text

string

The literal text to type, one keystroke per character

Returns

Promise<void>

Inherited from

ComponentDriver.typeText

---

waitUntil()

waitUntil<T>(option): Promise<T>

Defined in: packages/core/src/drivers/ComponentDriver.ts:360

Type Parameters

T

T

Parameters

option

WaitUntilOption<T>

Returns

Promise<T>

Inherited from

ComponentDriver.waitUntil

---

waitUntilComponentState()

waitUntilComponentState(option?): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:356

Wait until the component is in the expected state such as the component's visibility or existence. If the component has not reached the expected state within the timeout, it will throw an error.

By default it waits until the component is attached to the DOM within 30 seconds.

Parameters

option?

Partial<Readonly<WaitForOption>> = defaultWaitForOption

The option to configure the wait behavior

Returns

Promise<void>

Inherited from

ComponentDriver.waitUntilComponentState

---

waitUntilVisible()

waitUntilVisible(timeoutMs?): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:338

Wait until the component is attached and becomes visible to the DOM.

Parameters

timeoutMs?

number = defaultWaitForOption.timeoutMs

The number of milliseconds to wait before timing out. Defaults to defaultWaitForOption.timeoutMs so this wait shares a single flake-tolerance source with waitUntilComponentState (#1057).

Returns

Promise<void>

Inherited from

ComponentDriver.waitUntilVisible

---

overriddenParentLocator()

static overriddenParentLocator(): Optional<PartLocator>

Defined in: packages/core/src/drivers/ComponentDriver.ts:88

Portal hook: where to re-root this driver's locator when its component renders outside the parent's DOM (a modal, popup, drawer). Return the PartLocator that locates the component from the document root, or undefined (the default) for normal in-tree components whose locator chains from the parent.

This is static because it is per-class metadata read off the constructor before any instance exists — which makes the "no instance state" constraint structural rather than a documented caution. Override with static override.

Returns

Optional<PartLocator>

Inherited from

ComponentDriver.overriddenParentLocator

---

overrideLocatorRelativePosition()

static overrideLocatorRelativePosition(): Optional<LocatorRelativePosition>

Defined in: packages/core/src/drivers/ComponentDriver.ts:101

Portal hook: the locator relative position to apply when the component's real DOM is a sibling/elsewhere rather than a descendant (e.g. a MUI dialog rendered at the document root, located by a "Same"-level selector). Return undefined (the default) to keep the natural position declared by the ScenePart.

Static for the same reason as ComponentDriver.overriddenParentLocator: it is class-level metadata read before construction. Override with static override.

Returns

Optional<LocatorRelativePosition>

Inherited from

ComponentDriver.overrideLocatorRelativePosition

Protected members (16)

Methods

activate()

protected activate(): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:256

Activate the component without relying on pointer geometry. See Interactor.activate.

Returns

Promise<void>

Inherited from

ComponentDriver.activate

---

contextMenu()

protected contextMenu(): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:249

Dispatch a right-click / contextmenu event on the component. See Interactor.contextMenu.

Returns

Promise<void>

Inherited from

ComponentDriver.contextMenu

---

drag()

protected drag(delta): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:306

Drag this component by the given pixel delta from its center. See Interactor.drag.

Prefer a keyboard-driven setValue over a true drag in real drivers — these drag primitives exist only for cases keyboard cannot express (e.g. panning a Lightbox, reordering a column). jsdom has no layout engine, so the positional outcome of the drag is E2E-only there.

Parameters

delta

Point

Pixel offset to drag by

Returns

Promise<void>

Inherited from

ComponentDriver.drag

---

dragTo()

protected dragTo(target): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:292

Drag this component and drop it onto another component. See Interactor.dragTo.

Prefer a keyboard-driven setValue over a true drag in real drivers — these drag primitives exist only for cases keyboard cannot express (e.g. panning a Lightbox, reordering a column). jsdom has no layout engine, so the positional outcome of the drag is E2E-only there.

Parameters

target

ComponentDriver<any>

Another driver whose root element is the drop target

Returns

Promise<void>

Inherited from

ComponentDriver.dragTo

---

enforcePartExistence()

protected enforcePartExistence(partName): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:124

Check the specified parts' existences, and throw MissingPartError if any of the part is found not existence. Existence is defined by the part's existence in the DOM regardless of its visibility on the screen

Parameters

partName

keyof T | readonly keyof T[]

Single or array of the names of the parts to be enforced

Returns

Promise<void>

Inherited from

ComponentDriver.enforcePartExistence

---

getBoundingRect()

protected getBoundingRect(): Promise<BoundingRect>

Defined in: packages/core/src/drivers/ComponentDriver.ts:316

Get this component's bounding rectangle. See Interactor.getBoundingRect.

jsdom has no layout engine, so every coordinate and dimension is 0 there; real geometry is E2E-only.

Returns

Promise<BoundingRect>

Inherited from

ComponentDriver.getBoundingRect

---

getMissingPartNames()

protected getMissingPartNames(partName): Promise<readonly keyof T[]>

Defined in: packages/core/src/drivers/ComponentDriver.ts:136

Get the names of parts not in the DOM

Parameters

partName

keyof T | readonly keyof T[]

Single or array of the names of the parts to be examined

Returns

Promise<readonly keyof T[]>

Inherited from

ComponentDriver.getMissingPartNames

---

innerHTML()

protected innerHTML(): Promise<string>

Defined in: packages/core/src/drivers/ComponentDriver.ts:368

Get the inner HTML of the component

Returns

Promise<string>

The inner HTML of the component

Inherited from

ComponentDriver.innerHTML

---

mouseDown()

protected mouseDown(option?): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:200

Parameters

option?

Partial<MouseDownOption>

Returns

Promise<void>

Inherited from

ComponentDriver.mouseDown

---

mouseEnter()

protected mouseEnter(option?): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:216

Parameters

option?

Partial<MouseEnterOption>

Returns

Promise<void>

Inherited from

ComponentDriver.mouseEnter

---

mouseLeave()

protected mouseLeave(option?): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:220

Parameters

option?

Partial<MouseLeaveOption>

Returns

Promise<void>

Inherited from

ComponentDriver.mouseLeave

---

mouseMove()

protected mouseMove(option?): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:196

Parameters

option?

Partial<MouseMoveOption>

Returns

Promise<void>

Inherited from

ComponentDriver.mouseMove

---

mouseOut()

protected mouseOut(option?): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:212

Parameters

option?

Partial<MouseOutOption>

Returns

Promise<void>

Inherited from

ComponentDriver.mouseOut

---

mouseOver()

protected mouseOver(option?): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:208

Parameters

option?

Partial<HoverOption>

Returns

Promise<void>

Inherited from

ComponentDriver.mouseOver

---

mouseUp()

protected mouseUp(option?): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:204

Parameters

option?

Partial<MouseUpOption>

Returns

Promise<void>

Inherited from

ComponentDriver.mouseUp

---

scrollBy()

protected scrollBy(delta): Promise<void>

Defined in: packages/core/src/drivers/ComponentDriver.ts:278

Scroll the component by the given pixel delta. See Interactor.scrollBy.

jsdom has no layout engine, so the scroll is a no-op there and behavioral assertions (resulting offset) are E2E-only.

Parameters

delta

Point

Pixel offset to scroll by

Returns

Promise<void>

Inherited from

ComponentDriver.scrollBy