chore: replace anys with unknowns (#9626)

Author: G-Rath

CHANGELOG.md

@@ -8,6 +8,7 @@
 
 ### Chore & Maintenance
 
+- `[*]` Replace `any`s with `unknown`s ([#9626](https://github.com/facebook/jest/pull/9626))
 - `[@jest/transform]` Expose type `CacheKeyOptions` for `getCacheKey` ([#9762](https://github.com/facebook/jest/pull/9762))
 
 ### Performance

packages/expect/src/matchers.ts

@@ -64,7 +64,7 @@ const toStrictEqualTesters = [
 type ContainIterable =
   | Array<unknown>
   | Set<unknown>
-  | NodeListOf<any>
+  | NodeListOf<Node>
   | DOMTokenList
   | HTMLCollectionOf<any>;
 
@@ -630,7 +630,7 @@ const matchers: MatchersObject = {
 
     if (
       typeof received !== 'string' &&
-      (!received || typeof received.length !== 'number')
+      (typeof received !== 'object' || typeof received.length !== 'number')
     ) {
       throw new Error(
         matcherErrorMessage(

packages/expect/src/toThrowMatchers.ts

@@ -223,7 +223,7 @@ const toThrowExpectedObject = (
   matcherName: string,
   options: MatcherHintOptions,
   thrown: Thrown | null,
-  expected: any,
+  expected: Error,
 ): SyncExpectationResult => {
   const pass = thrown !== null && thrown.message === expected.message;
 

packages/jest-cli/src/cli/index.ts

@@ -74,12 +74,15 @@ export const buildArgv = (maybeArgv?: Array<string>): Config.Argv => {
   );
 
   // strip dashed args
-  return Object.keys(argv).reduce((result, key) => {
-    if (!key.includes('-')) {
-      result[key] = argv[key];
-    }
-    return result;
-  }, {} as Config.Argv);
+  return Object.keys(argv).reduce<Config.Argv>(
+    (result, key) => {
+      if (!key.includes('-')) {
+        result[key] = argv[key];
+      }
+      return result;
+    },
+    {$0: argv.$0, _: argv._},
+  );
 };
 
 const getProjectListFromCLIArgs = (

packages/jest-config/src/ReporterValidationErrors.ts

@@ -39,7 +39,7 @@ export function createArrayReporterError(
   arrayReporter: Config.ReporterConfig,
   reporterIndex: number,
   valueIndex: number,
-  value: string | Record<string, any>,
+  value: string | Record<string, unknown>,
   expectedType: string,
   valueName: string,
 ): ValidationError {

packages/jest-config/src/normalize.ts

@@ -746,14 +746,14 @@ export default function normalize(
               ? _replaceRootDirTags(options.rootDir, project)
               : project,
           )
-          .reduce((projects, project) => {
+          .reduce<Array<string>>((projects, project) => {
             // Project can be specified as globs. If a glob matches any files,
             // We expand it to these paths. If not, we keep the original path
             // for the future resolution.
             const globMatches =
               typeof project === 'string' ? glob(project) : [];
             return projects.concat(globMatches.length ? globMatches : project);
-          }, [] as Array<string>);
+          }, []);
         break;
       case 'moduleDirectories':
       case 'testMatch':

packages/jest-core/src/FailedTestsCache.ts

@@ -29,10 +29,10 @@ export default class FailedTestsCache {
       .reduce<TestMap>((suiteMap, testResult) => {
         suiteMap[testResult.testFilePath] = testResult.testResults
           .filter(test => test.status === 'failed')
-          .reduce((testMap, test) => {
+          .reduce<{[name: string]: true}>((testMap, test) => {
             testMap[test.fullName] = true;
             return testMap;
-          }, {} as {[name: string]: true});
+          }, {});
         return suiteMap;
       }, {});
 

packages/jest-core/src/watch.ts

@@ -158,9 +158,11 @@ export default function watch(
   if (globalConfig.watchPlugins != null) {
     const watchPluginKeys: WatchPluginKeysMap = new Map();
     for (const plugin of watchPlugins) {
-      const reservedInfo =
-        RESERVED_KEY_PLUGINS.get(plugin.constructor as WatchPluginClass) ||
-        ({} as ReservedInfo);
+      const reservedInfo: Pick<
+        ReservedInfo,
+        'forbiddenOverwriteMessage' | 'key'
+      > =
+        RESERVED_KEY_PLUGINS.get(plugin.constructor as WatchPluginClass) || {};
       const key = reservedInfo.key || getPluginKey(plugin, globalConfig);
       if (!key) {
         continue;

packages/jest-docblock/src/index.ts

@@ -18,6 +18,7 @@ const ltrimNewlineRe = /^(\r?\n)+/;
 const multilineRe = /(?:^|\r?\n) *(@[^\r\n]*?) *\r?\n *(?![^@\r\n]*\/\/[^]*)([^@\r\n\s][^@\r\n]+?) *\r?\n/g;
 const propertyRe = /(?:^|\r?\n) *@(\S+) *([^\r\n]*)/g;
 const stringStartRe = /(\r?\n|^) *\* ?/g;
+const STRING_ARRAY: ReadonlyArray<string> = [];
 
 export function extract(contents: string): string {
   const match = contents.match(docblockRe);
@@ -65,10 +66,7 @@ export function parseWithComments(
       typeof result[match[1]] === 'string' ||
       Array.isArray(result[match[1]])
     ) {
-      result[match[1]] = ([] as Array<string>).concat(
-        result[match[1]],
-        nextPragma,
-      );
+      result[match[1]] = STRING_ARRAY.concat(result[match[1]], nextPragma);
     } else {
       result[match[1]] = nextPragma;
     }
@@ -123,7 +121,7 @@ export function print({
 }
 
 function printKeyValues(key: string, valueOrArray: string | Array<string>) {
-  return ([] as Array<string>)
-    .concat(valueOrArray)
-    .map(value => `@${key} ${value}`.trim());
+  return STRING_ARRAY.concat(valueOrArray).map(value =>
+    `@${key} ${value}`.trim(),
+  );
 }

packages/jest-fake-timers/src/jestFakeTimers.ts

@@ -372,7 +372,7 @@ export default class FakeTimers<TimerRef> {
     const promisifiableFakeSetTimeout = fn(this._fakeSetTimeout.bind(this));
     promisifiableFakeSetTimeout[util.promisify.custom] = (
       delay?: number,
-      arg?: any,
+      arg?: unknown,
     ) =>
       new Promise(resolve => promisifiableFakeSetTimeout(resolve, delay, arg));