object ReactTestUtils extends Object with ReactTestUtils
https://facebook.github.io/react/docs/test-utils.html
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- @JSImport("react-dom/test-utils", JSImport.Namespace, "ReactTestUtils") @native()
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- final type Mounted = Component[_ <: Object, _ <: Object]
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- ReactTestUtils
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- ReactTestUtils
- final def act(body: Function0[Any]): Thenable[Unit]
When writing UI tests, tasks like rendering, user events, or data fetching can be considered as "units" of interaction with a user interface.
When writing UI tests, tasks like rendering, user events, or data fetching can be considered as "units" of interaction with a user interface. React provides a helper called act() that makes sure all updates related to these "units" have been processed and applied to the DOM before you make any assertions:
act(() => { // render components }); // make assertions
This helps make your tests run closer to what real users would experience when using your application.
- Definition Classes
- ReactTestUtils
- final def actAsync(body: Function0[Thenable[Any]]): Thenable[Unit]
When writing UI tests, tasks like rendering, user events, or data fetching can be considered as "units" of interaction with a user interface.
When writing UI tests, tasks like rendering, user events, or data fetching can be considered as "units" of interaction with a user interface. React provides a helper called act() that makes sure all updates related to these "units" have been processed and applied to the DOM before you make any assertions:
await act(async () => { // render components }); // make assertions
This helps make your tests run closer to what real users would experience when using your application.
- Definition Classes
- ReactTestUtils
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- @JSName("act")
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- final def eq(arg0: AnyRef): Boolean
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- def equals(arg0: AnyRef): Boolean
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- final def findAllInRenderedTree(tree: Mounted, test: Function1[Mounted, Boolean]): Array[Mounted]
Traverse all components in tree and accumulate all components where test(component) is true.
Traverse all components in tree and accumulate all components where test(component) is true. This is not that useful on its own, but it's used as a primitive for other test utils.
- Definition Classes
- ReactTestUtils
- final def findRenderedComponentWithType(tree: Mounted, c: ComponentClassUntyped): Mounted
Same as scryRenderedComponentsWithType() but expects there to be one result and returns that one result, or throws exception if there is any other number of matches besides one.
Same as scryRenderedComponentsWithType() but expects there to be one result and returns that one result, or throws exception if there is any other number of matches besides one.
- Definition Classes
- ReactTestUtils
- final def findRenderedDOMComponentWithClass(tree: Mounted, className: String): Mounted
Like scryRenderedDOMComponentsWithClass() but expects there to be one result, and returns that one result, or throws exception if there is any other number of matches besides one.
Like scryRenderedDOMComponentsWithClass() but expects there to be one result, and returns that one result, or throws exception if there is any other number of matches besides one.
- Definition Classes
- ReactTestUtils
- final def findRenderedDOMComponentWithTag(tree: Mounted, tagName: String): Mounted
Like scryRenderedDOMComponentsWithTag() but expects there to be one result, and returns that one result, or throws exception if there is any other number of matches besides one.
Like scryRenderedDOMComponentsWithTag() but expects there to be one result, and returns that one result, or throws exception if there is any other number of matches besides one.
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- ReactTestUtils
- final def getClass(): Class[_ <: AnyRef]
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- final def isComponentOfType(instance: Element, c: ComponentClassUntyped): Boolean
Returns true if instance is an instance of a React componentClass.
Returns true if instance is an instance of a React componentClass.
- Definition Classes
- ReactTestUtils
- final def isCompositeComponent(instance: Element): Boolean
Returns true if instance is a composite component (created with React.createClass())
Returns true if instance is a composite component (created with React.createClass())
- Definition Classes
- ReactTestUtils
- final def isCompositeComponentWithType(instance: Element, c: ComponentClassUntyped): Boolean
The combination of isComponentOfType() and isCompositeComponent().
The combination of isComponentOfType() and isCompositeComponent().
- Definition Classes
- ReactTestUtils
- final def isDOMComponent(instance: Element): Boolean
Returns true if instance is a DOM component (such as a <div> or <span>).
Returns true if instance is a DOM component (such as a <div> or <span>).
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- ReactTestUtils
- final def isInstanceOf[T0]: Boolean
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- final def mockComponent[P <: Object, S <: Object](c: ComponentClass[P, S], mockTagName: String = js.native): ComponentClass[P, S]
Pass a mocked component module to this method to augment it with useful methods that allow it to be used as a dummy React component.
Pass a mocked component module to this method to augment it with useful methods that allow it to be used as a dummy React component. Instead of rendering as usual, the component will become a simple <div> (or other tag if mockTagName is provided) containing any provided children.
- Definition Classes
- ReactTestUtils
- final def ne(arg0: AnyRef): Boolean
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- final def renderIntoDocument(element: Element): |[ComponentUntyped, Null]
Render a component into a detached DOM node in the document.
Render a component into a detached DOM node in the document. This function requires a DOM.
- Definition Classes
- ReactTestUtils
- final def scryRenderedComponentsWithType(tree: Mounted, c: ComponentClassUntyped): Array[Mounted]
Finds all instances of components with type equal to componentClass.
Finds all instances of components with type equal to componentClass.
- Definition Classes
- ReactTestUtils
- final def scryRenderedDOMComponentsWithClass(tree: Mounted, className: String): Array[Mounted]
Finds all instance of components in the rendered tree that are DOM components with the class name matching className.
Finds all instance of components in the rendered tree that are DOM components with the class name matching className.
- Definition Classes
- ReactTestUtils
- final def scryRenderedDOMComponentsWithTag(tree: Mounted, tagName: String): Array[Mounted]
Finds all instance of components in the rendered tree that are DOM components with the tag name matching tagName.
Finds all instance of components in the rendered tree that are DOM components with the tag name matching tagName.
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- ReactTestUtils
- final def synchronized[T0](arg0: => T0): T0
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