feat(babel-jest): export createTransformer function (#12399)

nwalters512 · web-flow · commit f4f5448b7e3d · 2022-02-15T22:20:31.000+01:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ### Features
 
+- `[babel-jest]` Export `createTransformer` function ([#12399](https://github.com/facebook/jest/pull/12399))
 - `[expect]` Expose `AsymmetricMatchers`, `MatcherFunction` and `MatcherFunctionWithState` interfaces ([#12363](https://github.com/facebook/jest/pull/12363), [#12376](https://github.com/facebook/jest/pull/12376))
 - `[jest-config]` [**BREAKING**] Stop shipping `jest-environment-jsdom` by default ([#12354](https://github.com/facebook/jest/pull/12354))
 - `[jest-config]` [**BREAKING**] Stop shipping `jest-jasmine2` by default ([#12355](https://github.com/facebook/jest/pull/12355))
diff --git a/e2e/transform/babel-jest-manual/transformer.js b/e2e/transform/babel-jest-manual/transformer.js
@@ -5,7 +5,7 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-const {createTransformer} = require('babel-jest').default;
+const {createTransformer} = require('babel-jest');
 
 module.exports = createTransformer({
   presets: ['@babel/preset-flow'],
diff --git a/packages/babel-jest/src/index.ts b/packages/babel-jest/src/index.ts
@@ -149,7 +149,7 @@ async function loadBabelOptionsAsync(
   return addIstanbulInstrumentation(options, jestTransformOptions);
 }
 
-const createTransformer: CreateTransformer = userOptions => {
+export const createTransformer: CreateTransformer = userOptions => {
   const inputOptions = userOptions ?? {};
 
   const options = {

Original file line number	Diff line number	Diff line change
`@@ -149,7 +149,7 @@ async function loadBabelOptionsAsync(`
`149`	`149`	`return addIstanbulInstrumentation(options, jestTransformOptions);`
`150`	`150`	`}`
`151`	`151`
`152`		`-const createTransformer: CreateTransformer = userOptions => {`
	`152`	`+export const createTransformer: CreateTransformer = userOptions => {`
`153`	`153`	`const inputOptions = userOptions ?? {};`
`154`	`154`
`155`	`155`	`const options = {`