Use MatchersObject from Jest's expect lib

Author: dprevost-LMI

src/index.ts

@@ -1,6 +1,6 @@
 /// <reference types="../types/expect-webdriverio.d.ts" />
 import { expect as expectLib } from 'expect'
-import type { WdioMatchersObject, RawMatcherFn } from './types.js'
+import type { RawMatcherFn } from './types.js'
 import * as wdioMatchers from './matchers.js'
 import { DEFAULT_OPTIONS, defaultOptionsList } from './constants.js'
 import createSoftExpect from './softExpect.js'
@@ -9,14 +9,14 @@ import { SoftAssertService } from './softAssert.js'
 /**
  * Contains only the custom WDIO matchers to be used with `expect.extend()`.
  */
-export const wdioCustomMatchers: WdioMatchersObject = {}
+export const wdioCustomMatchers: MatchersObject = {}
 
 /**
  * @deprecated use `wdioCustomMatchers` instead
  */
 export const matchers = new Map<string, RawMatcherFn>()
 
-const filteredMatchers: WdioMatchersObject = {}
+const filteredMatchers: MatchersObject = {}
 const extend = expectLib.extend
 
 // filter out matchers that aren't a function
@@ -38,9 +38,7 @@ expectLib.extend = (m) => {
     return extend(m)
 }
 
-type MatchersObject = Parameters<typeof expectLib.extend>[0]
-
-expectLib.extend(filteredMatchers as MatchersObject)
+expectLib.extend(filteredMatchers)
 
 // Extend the expect object with soft assertions
 const expectWithSoft = expectLib as unknown as ExpectWebdriverIO.Expect

src/types.ts

@@ -14,5 +14,3 @@ export type WdioElementsMaybePromise =
 export type RawMatcherFn<Context extends MatcherContext = MatcherContext> = {
     (this: Context, actual: unknown, ...expected: unknown[]): ExpectationResult;
 }
-
-export type WdioMatchersObject = Record<string, RawMatcherFn>

types/expect-webdriverio.d.ts

@@ -20,7 +20,7 @@ type ExpectLibSyncExpectationResult = import('expect').SyncExpectationResult
 type ExpectLibAsyncExpectationResult = import('expect').AsyncExpectationResult
 type ExpectLibExpectationResult = import('expect').ExpectationResult
 type ExpectLibMatcherContext = import('expect').MatcherContext
-type MatchersObject = import('expect').MatchersObject
+type MatchersObject = Parameters<typeof import('expect').expect.extend>[0]
 
 // Extracted from the expect library, this is the type of the matcher function used in the expect library.
 type RawMatcherFn<Context extends ExpectLibMatcherContext = ExpectLibMatcherContext> = {