refactor(config): remove support for tsConfig option (#2127)

BREAKING CHANGE:
One currently uses `tsConfig` should change to `tsconfig` in your `jest.config.js` or `package.json`

Author: ahnpnl

docs/user/config/index.md

@@ -207,7 +207,7 @@ All options have default values which should fit most of the projects. Click on
 | Option | Description | Type | Default |
 |---|---|---|---|
 | [**`compiler`**][compiler] | [TypeScript module to use as compiler.][compiler] | `string` | `"typescript"` |
-| [**`tsConfig` or `tsconfig`**][tsConfig] | [TypeScript compiler related configuration.][tsConfig] | `string`\|`object`\|`boolean` | _auto_ |
+| [**`tsconfig`**][tsconfig] | [TypeScript compiler related configuration.][tsconfig] | `string`\|`object`\|`boolean` | _auto_ |
 | [**`isolatedModules`**][isolatedModules] | [Disable type-checking][isolatedModules] | `boolean` | _disabled_ |
 | [**`astTransformers`**][astTransformers] | [Custom TypeScript AST transformers][astTransformers] | `object` | _auto_ |
 | [**`diagnostics`**][diagnostics] | [Diagnostics related configuration.][diagnostics] | `boolean`\|`object` | _enabled_ |
@@ -260,7 +260,7 @@ npx ts-jest config:migrate package.json
 </div></div>
 
 [compiler]: compiler
-[tsConfig]: tsConfig
+[tsconfig]: tsconfig
 [isolatedModules]: isolatedModules
 [astTransformers]: astTransformers
 [compilerHost]: compilerHost

docs/user/config/tsConfig.md docs/user/config/tsconfig.mddocs/user/config/tsConfig.md renamed to docs/user/config/tsconfig.md

@@ -37,7 +37,7 @@ module.exports = {
   "jest": {
     "globals": {
       "ts-jest": {
-        "tsConfig": "tsconfig.test.json"
+        "tsconfig": "tsconfig.test.json"
       }
     }
   }
@@ -76,7 +76,7 @@ module.exports = {
   "jest": {
     "globals": {
       "ts-jest": {
-        "tsConfig": {
+        "tsconfig": {
           "importHelpers": true
         }
       }
@@ -114,7 +114,7 @@ module.exports = {
   "jest": {
     "globals": {
       "ts-jest": {
-        "tsConfig": false
+        "tsconfig": false
       }
     }
   }

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

@@ -244,63 +244,6 @@ exports[`ts-jest logging deprecation warning with packageJson config should pass
   ================================================================================
 `;
 
-exports[`ts-jest logging deprecation warning with tsConfig config should pass using template "default" 1`] = `
-  √ jest
-  ↳ exit code: 0
-  ===[ STDOUT ]===================================================================
-  
-  ===[ STDERR ]===================================================================
-  ts-jest[config] (WARN) The option \`tsConfig\` is deprecated and will be removed in ts-jest 27, use \`tsconfig\` instead
-  PASS ./Hello.spec.ts
-    Hello Class
-      √ should create a new Hello
-  
-  Test Suites: 1 passed, 1 total
-  Tests:       1 passed, 1 total
-  Snapshots:   0 total
-  Time:        XXs
-  Ran all test suites.
-  ================================================================================
-`;
-
-exports[`ts-jest logging deprecation warning with tsConfig config should pass using template "with-babel-7" 1`] = `
-  √ jest
-  ↳ exit code: 0
-  ===[ STDOUT ]===================================================================
-  
-  ===[ STDERR ]===================================================================
-  ts-jest[config] (WARN) The option \`tsConfig\` is deprecated and will be removed in ts-jest 27, use \`tsconfig\` instead
-  PASS ./Hello.spec.ts
-    Hello Class
-      √ should create a new Hello
-  
-  Test Suites: 1 passed, 1 total
-  Tests:       1 passed, 1 total
-  Snapshots:   0 total
-  Time:        XXs
-  Ran all test suites.
-  ================================================================================
-`;
-
-exports[`ts-jest logging deprecation warning with tsConfig config should pass using template "with-babel-7-string-config" 1`] = `
-  √ jest
-  ↳ exit code: 0
-  ===[ STDOUT ]===================================================================
-  
-  ===[ STDERR ]===================================================================
-  ts-jest[config] (WARN) The option \`tsConfig\` is deprecated and will be removed in ts-jest 27, use \`tsconfig\` instead
-  PASS ./Hello.spec.ts
-    Hello Class
-      √ should create a new Hello
-  
-  Test Suites: 1 passed, 1 total
-  Tests:       1 passed, 1 total
-  Snapshots:   0 total
-  Time:        XXs
-  Ran all test suites.
-  ================================================================================
-`;
-
 exports[`ts-jest logging with unsupported version test with TS_JEST_DISABLE_VER_CHECKER is not set in process.env should pass using template "with-unsupported-version" 1`] = `
   √ jest
   ↳ exit code: 0

e2e/__tests__/logger.test.ts

@@ -123,21 +123,5 @@ describe('ts-jest logging', () => {
         })
       })
     })
-
-    describe('with tsConfig config', () => {
-      const testCase = configureTestCase('simple', {
-        tsJestConfig: {
-          tsConfig: true,
-        }
-      })
-
-      testCase.runWithTemplates(allPackageSetsWithPreset, 0, (runTest, { testLabel }) => {
-        it(testLabel, () => {
-          const result = runTest()
-          expect(result.status).toBe(0)
-          expect(result).toMatchSnapshot()
-        })
-      })
-    })
   })
 })

src/__helpers__/fakers.ts

@@ -4,7 +4,7 @@ import { resolve } from 'path'
 
 import { createCompilerInstance } from '../compiler/instance'
 import { ConfigSet } from '../config/config-set'
-import type { BabelConfig, TsCompiler, TsJestConfig, TsJestGlobalOptions } from '../types'
+import type { BabelConfig, TsCompiler, TsJestGlobalOptions } from '../types'
 import type { ImportReasons } from '../utils/messages'
 
 export function filePath(relPath: string): string {
@@ -13,19 +13,6 @@ export function filePath(relPath: string): string {
 
 export const rootDir = filePath('')
 
-export function tsJestConfig(options?: Partial<TsJestConfig>): TsJestConfig {
-  return {
-    isolatedModules: false,
-    compiler: 'typescript',
-    transformers: options?.transformers ?? Object.create(null),
-    babelConfig: undefined,
-    tsConfig: undefined,
-    stringifyContentPathRegex: undefined,
-    diagnostics: { ignoreCodes: [], pretty: false, throws: true },
-    ...options,
-  }
-}
-
 function getJestConfig<T extends Config.ProjectConfig>(
   options?: Partial<Config.InitialOptions | Config.ProjectConfig>,
   tsJestOptions?: TsJestGlobalOptions,