Function: getWebSocketShim()
getWebSocketShim(
fetchFn?,factoryInit?): (url,protocols?) =>WebSocket
Defined in: testing/src/websocket-shim.ts:35
Creates a WebSocket shim class for use in Cloudflare Workers test environments.
Returns a browser-compatible WebSocket constructor that uses a provided fetch function to initiate WebSocket connections, enabling testing without a separate server.
Parameters
fetchFn?
{(input, init?): Promise<Response>; (input, init?): Promise<Response>; (input, init?): Promise<Response>; }
The fetch function to use for WebSocket upgrade requests. Defaults to globalThis.fetch. In test environments, pass SELF.fetch.bind(SELF).
factoryInit?
Optional configuration for headers and queue limits.
Returns
A WebSocket-compatible constructor class.
new getWebSocketShim(
url,protocols?):WebSocket
Parameters
url
string | URL
protocols?
string | string[]
Returns
WebSocket