no-deprecated-functions
)Over the years Jest has accrued some debt in the form of functions that have either been renamed for clarity, or replaced with more powerful APIs.
While typically these deprecated functions are kept in the codebase for a number of majors, eventually they are removed completely.
This rule warns about calls to deprecated functions, and provides details on what to replace them with, based on the version of Jest that is installed.
This rule can also autofix a number of these deprecations for you.
jest.resetModuleRegistry
This function was renamed to resetModules
in Jest 15, and is scheduled for
removal in Jest 27.
jest.addMatchers
This function was replaced with expect.extend
in Jest 17, and is scheduled for
removal in Jest 27.
require.requireActual
& require.requireMock
These functions were replaced in Jest 21 and removed in Jest 26.
Originally, the requireActual
& requireMock
the requireActual
&
requireMock
functions were placed onto the require
function.
These functions were later moved onto the jest
object in order to be easier
for type checkers to handle, and their use via require
deprecated. Finally,
the release of Jest 26 saw them removed from the require
function all
together.
jest.runTimersToTime
This function was renamed to advanceTimersByTime
in Jest 22, and is scheduled
for removal in Jest 27.
jest.genMockFromModule
This function was renamed to createMockFromModule
in Jest 26, and is scheduled
for removal in a future version of Jest.