chore: use import type (#9693)

Author: SimenB

TestUtils.ts

@@ -5,8 +5,7 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-// eslint-disable-next-line import/no-extraneous-dependencies
-import {Config} from '@jest/types';
+import type {Config} from '@jest/types';
 
 const DEFAULT_GLOBAL_CONFIG: Config.GlobalConfig = {
   bail: 0,

e2e/Utils.ts

@@ -7,7 +7,7 @@
 
 import * as fs from 'fs';
 import * as path from 'path';
-import {Config} from '@jest/types';
+import type {Config} from '@jest/types';
 
 // eslint-disable-next-line import/named
 import {ExecaReturnValue, sync as spawnSync} from 'execa';

e2e/babel-plugin-jest-hoist/entry.ts

@@ -5,6 +5,6 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import {Color} from './types';
+import type {Color} from './types';
 
 export const color: Color = 'red';

e2e/runJest.ts

@@ -10,7 +10,7 @@ import * as path from 'path';
 import * as fs from 'fs';
 import {Writable} from 'stream';
 import execa = require('execa');
-import {FormattedTestResults} from '@jest/test-result';
+import type {FormattedTestResults} from '@jest/test-result';
 import stripAnsi = require('strip-ansi');
 import {normalizeIcons} from './Utils';
 

packages/babel-jest/src/index.ts

@@ -8,8 +8,8 @@
 import {createHash} from 'crypto';
 import * as fs from 'fs';
 import * as path from 'path';
-import {Transformer} from '@jest/transform';
-import {Config} from '@jest/types';
+import type {Transformer} from '@jest/transform';
+import type {Config} from '@jest/types';
 import {
   PartialConfig,
   TransformOptions,

packages/babel-plugin-jest-hoist/src/index.ts

@@ -6,11 +6,8 @@
  *
  */
 
-// Only used for types
-/* eslint-disable import/no-extraneous-dependencies */
-import {NodePath, Visitor} from '@babel/traverse';
-import {Identifier} from '@babel/types';
-/* eslint-enable */
+import type {NodePath, Visitor} from '@babel/traverse';
+import type {Identifier} from '@babel/types';
 
 // We allow `jest`, `expect`, `require`, all default Node.js globals and all
 // ES2015 built-ins to be used inside of a `jest.mock` factory.

packages/expect/src/index.ts

@@ -7,7 +7,7 @@
  */
 
 import * as matcherUtils from 'jest-matcher-utils';
-import {
+import type {
   AsyncExpectationResult,
   Expect,
   ExpectationResult,

packages/expect/src/jasmineUtils.ts

@@ -24,7 +24,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 /* eslint-disable */
 
-import {Tester} from './types';
+import type {Tester} from './types';
 
 // Extracted out of jasmine 2.5.2
 export function equals(

packages/expect/src/jestMatchersObject.ts

@@ -7,7 +7,7 @@
  */
 
 import {AsymmetricMatcher} from './asymmetricMatchers';
-import {Expect, MatchersObject, SyncExpectationResult} from './types';
+import type {Expect, MatchersObject, SyncExpectationResult} from './types';
 
 // Global matchers object holds the list of available matchers and
 // the state, that can hold matcher specific values that change over time.

packages/expect/src/matchers.ts

@@ -25,7 +25,7 @@ import {
   printWithType,
   stringify,
 } from 'jest-matcher-utils';
-import {MatcherState, MatchersObject} from './types';
+import type {MatcherState, MatchersObject} from './types';
 import {
   printCloseTo,
   printExpectedConstructorName,