`Emulation.setVirtualTimePolicy`

Turns on virtual time for all frames (replacing real-time with a synthetic time source) and sets the current virtual time policy. Note this supersedes any previous time budget.

Domain: Emulation experimental

Parameters

Name	Type	Description
`policy`	`VirtualTimePolicy`
`budget` (optional)	`number`	If set, after this many virtual milliseconds have elapsed virtual time will be paused and a virtualTimeBudgetExpired event is sent.
`maxVirtualTimeTaskStarvationCount` (optional)	`integer`	If set this specifies the maximum number of tasks that can be run before virtual is forced forwards to prevent deadlock.
`initialVirtualTime` (optional)	`Network.TimeSinceEpoch`	If set, base::Time::Now will be overridden to initially return this value.

Returns

Name	Type	Description
`virtualTimeTicksBase`	`number`	Absolute timestamp at which virtual time was first enabled (up time in milliseconds).

Example Request

{
  "id": 1,
  "method": "Emulation.setVirtualTimePolicy",
  "params": {
    "policy": "policy-value"
  }
}

Example Response

{
  "id": 1,
  "result": {
    "virtualTimeTicksBase": 1.0
  }
}

Usage in Node.js

const result = await send('Emulation.setVirtualTimePolicy', {"policy": "policy-value"});
console.log(result);
// {"virtualTimeTicksBase": 1.0}