chore: drop node 12 and 17

.circleci/config.yml

@@ -54,5 +54,5 @@ workflows:
           name: test-node-partial-<< matrix.node-version >>
           matrix:
             parameters:
-              node-version: ['12', '14', '16', '17', '18']
+              node-version: ['14', '16', '18']
       - test-jest-jasmine

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [12.x, 14.x, 16.x, 17.x, 18.x]
+        node-version: [14.x, 16.x, 18.x]
         shard: ['1/4', '2/4', '3/4', '4/4']
     name: Node v${{ matrix.node-version }} on ${{ inputs.os }} (${{ matrix.shard }})
     runs-on: ${{ inputs.os }}

CHANGELOG.md

@@ -6,6 +6,8 @@
 
 ### Chore & Maintenance
 
+- `[*]` [**BREAKING**] Drop support for Node v12 and v17 ([#13033](https://github.com/facebook/jest/pull/13033))
+
 ### Performance
 
 ## 28.1.3

constraints.pro

@@ -27,7 +27,7 @@ gen_enforced_dependency(WorkspaceCwd, DependencyIdent, DependencyRange2, Depende
     'react', 'react-dom',
     % Only RN should be bumped to react 18
     'react-test-renderer',
-    % @types/node in the root need to stay on ~12.12.0
+    % @types/node in the root need to stay on ~14.14.45
     '@types/node',
     % upgrading the entire repository is a breaking change
     'glob'
@@ -61,7 +61,7 @@ gen_enforced_field(WorkspaceCwd, 'publishConfig.access', null) :-
   workspace_field(WorkspaceCwd, 'private', true).
 
 % Enforces the engines.node field for public workspace
-gen_enforced_field(WorkspaceCwd, 'engines.node', '^12.13.0 || ^14.15.0 || ^16.10.0 || >=17.0.0') :-
+gen_enforced_field(WorkspaceCwd, 'engines.node', '^14.15.0 || ^16.10.0 || >=18.0.0') :-
   \+ workspace_field(WorkspaceCwd, 'private', true).
 
 % Enforces the main and types field to start with ./

docs/UpgradingToJest29.md

@@ -0,0 +1,16 @@
+---
+id: upgrading-to-jest29
+title: From v28 to v29
+---
+
+Upgrading Jest from v28 to v29? This guide aims to help refactoring your configuration and tests.
+
+:::info
+
+See [changelog](https://github.com/facebook/jest/blob/main/CHANGELOG.md#2900) for the full list of changes.
+
+:::
+
+## Compatibility
+
+The supported Node versions are 14.15, 16.10, 18.0 and above.

e2e/__tests__/__snapshots__/coverageProviderV8.test.ts.snap

@@ -1,64 +1,64 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`on node >=12.16.0 prints correct coverage report, if a TS module is transpiled by custom transformer to ESM put under test 1`] = `
+exports[`prints correct coverage report, if a CJS module is put under test without transformation 1`] = `
 "  console.log
     this will print
 
-      at covered (module.ts:13:11)
+      at covered (module.js:11:11)
 
 --------------|---------|----------|---------|---------|-------------------
 File          | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s 
 --------------|---------|----------|---------|---------|-------------------
-All files     |      50 |       25 |      25 |      50 |                   
- module.ts    |   80.76 |       50 |      50 |   80.76 | 16-18,21-22       
- types.ts     |       0 |        0 |       0 |       0 | 1-8               
- uncovered.ts |       0 |        0 |       0 |       0 | 1-8               
+All files     |   59.37 |       60 |      50 |   59.37 |                   
+ module.js    |   79.16 |       75 |   66.66 |   79.16 | 14-16,19-20       
+ uncovered.js |       0 |        0 |       0 |       0 | 1-8               
 --------------|---------|----------|---------|---------|-------------------"
 `;
 
-exports[`on node >=12.16.0 prints correct coverage report, if an ESM module is put under test without transformation 1`] = `
+exports[`prints correct coverage report, if a TS module is transpiled by Babel to CJS and put under test 1`] = `
 "  console.log
     this will print
 
-      at covered (module.js:11:11)
+      at log (module.ts:13:11)
 
 --------------|---------|----------|---------|---------|-------------------
 File          | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s 
 --------------|---------|----------|---------|---------|-------------------
-All files     |   59.37 |       50 |   33.33 |   59.37 |                   
- module.js    |   79.16 |    66.66 |      50 |   79.16 | 14-16,19-20       
- uncovered.js |       0 |        0 |       0 |       0 | 1-8               
+All files     |      50 |       25 |      25 |      50 |                   
+ module.ts    |   80.76 |       50 |      50 |   80.76 | 16-18,21-22       
+ types.ts     |       0 |        0 |       0 |       0 | 1-8               
+ uncovered.ts |       0 |        0 |       0 |       0 | 1-8               
 --------------|---------|----------|---------|---------|-------------------"
 `;
 
-exports[`prints correct coverage report, if a CJS module is put under test without transformation 1`] = `
+exports[`prints correct coverage report, if a TS module is transpiled by custom transformer to ESM put under test 1`] = `
 "  console.log
     this will print
 
-      at covered (module.js:11:11)
+      at covered (module.ts:13:11)
 
 --------------|---------|----------|---------|---------|-------------------
 File          | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s 
 --------------|---------|----------|---------|---------|-------------------
-All files     |   59.37 |       60 |      50 |   59.37 |                   
- module.js    |   79.16 |       75 |   66.66 |   79.16 | 14-16,19-20       
- uncovered.js |       0 |        0 |       0 |       0 | 1-8               
+All files     |      50 |       25 |      25 |      50 |                   
+ module.ts    |   80.76 |       50 |      50 |   80.76 | 16-18,21-22       
+ types.ts     |       0 |        0 |       0 |       0 | 1-8               
+ uncovered.ts |       0 |        0 |       0 |       0 | 1-8               
 --------------|---------|----------|---------|---------|-------------------"
 `;
 
-exports[`prints correct coverage report, if a TS module is transpiled by Babel to CJS and put under test 1`] = `
+exports[`prints correct coverage report, if an ESM module is put under test without transformation 1`] = `
 "  console.log
     this will print
 
-      at log (module.ts:13:11)
+      at covered (module.js:11:11)
 
 --------------|---------|----------|---------|---------|-------------------
 File          | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s 
 --------------|---------|----------|---------|---------|-------------------
-All files     |      50 |       25 |      25 |      50 |                   
- module.ts    |   80.76 |       50 |      50 |   80.76 | 16-18,21-22       
- types.ts     |       0 |        0 |       0 |       0 | 1-8               
- uncovered.ts |       0 |        0 |       0 |       0 | 1-8               
+All files     |   59.37 |       50 |   33.33 |   59.37 |                   
+ module.js    |   79.16 |    66.66 |      50 |   79.16 | 14-16,19-20       
+ uncovered.js |       0 |        0 |       0 |       0 | 1-8               
 --------------|---------|----------|---------|---------|-------------------"
 `;
 

e2e/__tests__/__snapshots__/moduleNameMapper.test.ts.snap

@@ -41,7 +41,7 @@ exports[`moduleNameMapper wrong array configuration 1`] = `
       12 | module.exports = () => 'test';
       13 |
 
-      at createNoMappedModuleFoundError (../../packages/jest-resolve/build/resolver.js:900:17)
+      at createNoMappedModuleFoundError (../../packages/jest-resolve/build/resolver.js:896:17)
       at Object.require (index.js:10:1)"
 `;
 
@@ -70,6 +70,6 @@ exports[`moduleNameMapper wrong configuration 1`] = `
       12 | module.exports = () => 'test';
       13 |
 
-      at createNoMappedModuleFoundError (../../packages/jest-resolve/build/resolver.js:900:17)
+      at createNoMappedModuleFoundError (../../packages/jest-resolve/build/resolver.js:896:17)
       at Object.require (index.js:10:1)"
 `;