feat: create new @jest/expect package

packages/expect/__typetests__/expect.test.ts

@@ -210,3 +210,7 @@ const customStateAndExpected: MatcherFunctionWithState<
 };
 
 expectAssignable<CustomStateAndExpected>(customStateAndExpected);
+
+expectError(() => {
+  expect({}).toMatchSnapshot();
+});

packages/jest-expect/__typetests__/jest-expect.test.ts

@@ -0,0 +1,16 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+import {expectError, expectType} from 'tsd-lite';
+import {jestExpect} from '@jest/expect';
+import {expect} from 'expect';
+
+expectType<void>(jestExpect({}).toMatchSnapshot());
+
+expectError(() => {
+  expect({}).toMatchSnapshot();
+});

packages/jest-expect/__typetests__/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../../../tsconfig.json",
+  "compilerOptions": {
+    "noUnusedLocals": false,
+    "noUnusedParameters": false,
+    "skipLibCheck": true
+  },
+  "include": ["./**/*"]
+}

packages/jest-expect/package.json

@@ -20,6 +20,10 @@
     "expect": "^28.0.0-alpha.1",
     "jest-snapshot": "^28.0.0-alpha.1"
   },
+  "devDependencies": {
+    "@tsd/typescript": "~4.5.5",
+    "tsd-lite": "^0.5.1"
+  },
   "engines": {
     "node": "^12.13.0 || ^14.15.0 || ^16.13.0 || >=17.0.0"
   },

yarn.lock

@@ -2593,8 +2593,10 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@jest/expect@workspace:packages/jest-expect"
   dependencies:
+    "@tsd/typescript": ~4.5.5
     expect: ^28.0.0-alpha.1
     jest-snapshot: ^28.0.0-alpha.1
+    tsd-lite: ^0.5.1
   languageName: unknown
   linkType: soft