Function onData

src/server/web/__tests__/session-manager.test.ts:12–15

(handler: (data: string) => void)

function createMockPty(): IPty & { _dataHandler?: (d: string) => void; _exitHandler?: (e: { exitCode: number; signal: number }) => void } {
  const mockPty = {
    onData(handler: (data: string) => void) {
      mockPty._dataHandler = handler;
      return { dispose() {} };
    },
    onExit(handler: (e: { exitCode: number; signal: number }) => void) {
      mockPty._exitHandler = handler;
      return { dispose() {} };