Testability

class

The Testability service provides testing hooks that can be accessed from the browser and by services such as Protractor. Each bootstrapped Angular application on the page will have an instance of Testability.

      
      class Testability implements PublicTestability {
  increasePendingRequestCount(): number
  decreasePendingRequestCount(): number
  isStable(): boolean
  whenStable(doneCb: Function, timeout?: number, updateCb?: Function): void
  getPendingRequestCount(): number
  findProviders(using: any, provider: string, exactMatch: boolean): any[]
}

Methods

increasePendingRequestCount()
Increases the number of pending request
increasePendingRequestCount(): number `increasePendingRequestCount(): number` Deprecated pending requests are now tracked with zones. Parameters There are no parameters. Returns `number`

decreasePendingRequestCount()
Decreases the number of pending request
decreasePendingRequestCount(): number `decreasePendingRequestCount(): number` Deprecated pending requests are now tracked with zones Parameters There are no parameters. Returns `number`

isStable()
Whether an associated application is stable
isStable(): boolean `isStable(): boolean` Parameters There are no parameters. Returns `boolean`

whenStable()

Wait for the application to be stable with a timeout. If the timeout is reached before that happens, the callback receives a list of the macro tasks that were pending, otherwise null.

      
      whenStable(doneCb: Function, timeout?: number, updateCb?: Function): void

Parameters

doneCb

Function

The callback to invoke when Angular is stable or the timeout expires whichever comes first.

timeout

number

Optional. The maximum time to wait for Angular to become stable. If not specified, whenStable() will wait forever.

Optional. Default is undefined.

updateCb

Function

Optional. If specified, this callback will be invoked whenever the set of pending macrotasks changes. If this callback returns true doneCb will not be invoked and no further updates will be issued.

Optional. Default is undefined.

Returns

void

getPendingRequestCount()
Get the number of pending requests
getPendingRequestCount(): number `getPendingRequestCount(): number` Deprecated pending requests are now tracked with zones Parameters There are no parameters. Returns `number`

findProviders()

Find providers by name

      
      findProviders(using: any, provider: string, exactMatch: boolean): any[]

Parameters

`using`	`any`	The root element to search from
`provider`	`string`	The name of binding variable
`exactMatch`	`boolean`	Whether using exactMatch

Returns

any[]