fix(testing): prevent renaming root jest preset

fixes: #9973
nrwl · May 11, 2022 · ae9c714 · ae9c714
1 parent 59ba748
commit ae9c714
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Showing 4 changed files with 21 additions and 16 deletions.
diff --git a/packages/jest/src/migrations/update-14-0-0/__snapshots__/update-jest-config-ext.spec.ts.snap b/packages/jest/src/migrations/update-14-0-0/__snapshots__/update-jest-config-ext.spec.ts.snap
@@ -1,7 +1,9 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`Jest Migration (v14.0.0) should rename project jest.config.js to jest.config.ts 1`] = `
-"module.exports = {
+exports[`Jest Migration (v14.0.0) should NOT update jest.config.ts preset 1`] = `
+"/* eslint-disable */
+
+module.exports = {
   displayName: 'lib-one',
   preset: '../../jest.preset.js',
   globals: {
@@ -18,8 +20,10 @@ exports[`Jest Migration (v14.0.0) should rename project jest.config.js to jest.c
 "
 `;
 
-exports[`Jest Migration (v14.0.0) should update jest.config.ts preset to use the jest.preset.ts 1`] = `
-"module.exports = {
+exports[`Jest Migration (v14.0.0) should rename project jest.config.js to jest.config.ts 1`] = `
+"/* eslint-disable */
+
+module.exports = {
   displayName: 'lib-one',
   preset: '../../jest.preset.js',
   globals: {

diff --git a/packages/jest/src/migrations/update-14-0-0/update-jest-config-ext.spec.ts b/packages/jest/src/migrations/update-14-0-0/update-jest-config-ext.spec.ts
@@ -33,10 +33,9 @@ async function libSetUp(tree: Tree, options = setupDefaults) {
   const config = tree.read(`libs/${options.libName}/jest.config.js`, 'utf-8');
   tree.write(
     `libs/${options.libName}/jest.config.js`,
-    config.replace(
-      /\/\/ eslint-disable-next-line @typescript-eslint\/naming-convention/g,
-      ''
-    )
+    config
+      .replace(/\/\* eslint-disable \*\//g, '')
+      .replace(/export default/g, 'module.exports =')
   );
   updateProjectConfiguration(tree, options.libName, {
     ...readProjectConfiguration(tree, options.libName),
@@ -72,6 +71,8 @@ describe('Jest Migration (v14.0.0)', () => {
   });
 
   it('should rename root jest.config.js', async () => {
+    await libSetUp(tree);
+
     await updateJestConfigExt(tree);
     expect(tree.exists('jest.config.ts')).toBeTruthy();
     expect(tree.exists('jest.preset.js')).toBeTruthy();

diff --git a/packages/jest/src/migrations/update-14-0-0/update-jest-config-ext.ts b/packages/jest/src/migrations/update-14-0-0/update-jest-config-ext.ts
@@ -10,9 +10,9 @@ import {
   updateJson,
   updateProjectConfiguration,
 } from '@nrwl/devkit';
-import { forEachExecutorOptions } from '@nrwl/workspace/src/utilities/executor-options-utils';
 import { extname } from 'path';
 import { JestExecutorOptions } from '../../executors/jest/schema';
+import { forEachExecutorOptions } from '@nrwl/workspace/src/utilities/executor-options-utils';
 
 const allowedExt = ['.ts', '.js'];
 

diff --git a/packages/jest/src/utils/config/functions.ts b/packages/jest/src/utils/config/functions.ts
@@ -1,8 +1,8 @@
 import * as ts from 'typescript';
-import {applyChangesToString, ChangeType, Tree} from '@nrwl/devkit';
-import {Config} from '@jest/types';
-import {createContext, runInContext} from 'vm';
-import {dirname, join} from 'path';
+import { applyChangesToString, ChangeType, Tree } from '@nrwl/devkit';
+import { Config } from '@jest/types';
+import { createContext, runInContext } from 'vm';
+import { dirname, join } from 'path';
 
 function makeTextToInsert(
   value: unknown,
@@ -93,7 +93,7 @@ export function addOrUpdateProperty(
         const text = makeTextToInsert(
           value,
           arrayLiteral.elements.length !== 0 &&
-          !arrayLiteral.elements.hasTrailingComma
+            !arrayLiteral.elements.hasTrailingComma
         );
         const updatedContents = applyChangesToString(originalContents, [
           {
@@ -150,7 +150,7 @@ export function removeProperty(
     if (
       properties.length > 0 &&
       propertyAssignment.initializer.kind ===
-      ts.SyntaxKind.ObjectLiteralExpression
+        ts.SyntaxKind.ObjectLiteralExpression
     ) {
       return removeProperty(
         propertyAssignment.initializer as ts.ObjectLiteralExpression,
@@ -253,7 +253,7 @@ export function jestConfigObject(
 ): Partial<Config.InitialOptions> & { [index: string]: any } {
   const __filename = join(host.root, path);
   const contents = host.read(path, 'utf-8');
-  let module = {exports: {}};
+  let module = { exports: {} };
 
   // transform the export default syntax to module.exports
   // this will work for the default config, but will break if there are any other ts syntax