fix(config): invalidate Jest transform cache when astTransformers value changes

src/config/__snapshots__/config-set.spec.ts.snap

@@ -59,8 +59,6 @@ Object {
   "before": Array [
     Object {
       "factory": [Function],
-      "name": "hoisting-jest-mock",
-      "version": 4,
     },
   ],
 }
@@ -73,8 +71,6 @@ Object {
   "before": Array [
     Object {
       "factory": [Function],
-      "name": "hoisting-jest-mock",
-      "version": 4,
     },
     Object {
       "factory": [Function],
@@ -94,8 +90,6 @@ Object {
   "before": Array [
     Object {
       "factory": [Function],
-      "name": "hoisting-jest-mock",
-      "version": 4,
     },
   ],
 }
@@ -112,8 +106,6 @@ Object {
   "before": Array [
     Object {
       "factory": [Function],
-      "name": "hoisting-jest-mock",
-      "version": 4,
     },
   ],
 }
@@ -126,8 +118,6 @@ Object {
   "before": Array [
     Object {
       "factory": [Function],
-      "name": "hoisting-jest-mock",
-      "version": 4,
     },
     Object {
       "factory": [Function],

src/config/config-set.ts

@@ -101,6 +101,7 @@ export class ConfigSet {
   readonly isolatedModules: boolean
   readonly cwd: string
   readonly rootDir: string
+  cacheSuffix!: string
   tsCacheDir: string | undefined
   parsedTsConfig!: ParsedCommandLine | Record<string, any>
   resolvedTransformers: TsJestAstTransformer = {
@@ -349,20 +350,30 @@ export class ConfigSet {
    * @internal
    */
   private _resolveTsCacheDir(): void {
+    this.cacheSuffix = sha1(
+      stringify({
+        version: this.compilerModule.version,
+        digest: this.tsJestDigest,
+        babelConfig: this.babelConfig,
+        compilerModule: this.compilerModule,
+        tsconfig: {
+          options: this.parsedTsConfig.options,
+          raw: this.parsedTsConfig.raw,
+        },
+        isolatedModules: this.isolatedModules,
+        diagnostics: this._diagnostics,
+        transformers: this.resolvedTransformers,
+      }),
+    )
     if (!this._jestCfg.cache) {
       this.logger.debug('file caching disabled')
     } else {
-      const cacheSuffix = sha1(
-        stringify({
-          version: this.compilerModule.version,
-          digest: this.tsJestDigest,
-          compilerModule: this.compilerModule,
-          compilerOptions: this.parsedTsConfig.options,
-          isolatedModules: this.isolatedModules,
-          diagnostics: this._diagnostics,
-        }),
+      const res = join(
+        this._jestCfg.cacheDirectory,
+        'ts-jest',
+        this.cacheSuffix.substr(0, 2),
+        this.cacheSuffix.substr(2),
       )
-      const res = join(this._jestCfg.cacheDirectory, 'ts-jest', cacheSuffix.substr(0, 2), cacheSuffix.substr(2))
 
       this.logger.debug({ cacheDirectory: res }, 'will use file caching')
 

src/transformers/README.md

@@ -9,11 +9,6 @@ import { SourceFile, TransformationContext, Transformer, Visitor } from 'typescr
 
 import type { TsCompilerInstance } from 'ts-jest/dist/types'
 
-// this is a unique identifier for your transformer
-export const name = 'my-transformer'
-// increment this each time you change the behavior of your transformer
-export const version = 1
-
 export function factory(compilerInstance: TsCompilerInstance) {
   const ts = compilerInstance.configSet.compilerModule
   function createVisitor(ctx: TransformationContext, sf: SourceFile) {

src/transformers/hoist-jest.spec.ts

@@ -121,14 +121,7 @@ const createFactory = () => hoist.factory(new TsCompiler(createConfigSet(), new
 const transpile = (source: string) => ts.transpileModule(source, { transformers: { before: [createFactory()] } })
 
 describe('hoisting', () => {
-  it('should have correct signature', () => {
-    expect(hoist.name).toBe('hoisting-jest-mock')
-    expect(typeof hoist.version).toBe('number')
-    expect(hoist.version).toBeGreaterThan(0)
-    expect(typeof hoist.factory).toBe('function')
-  })
-
-  it.each([CODE_WITH_HOISTING_NO_JEST_GLOBALS, CODE_WITH_HOISTING_HAS_JEST_GLOBALS])(
+  test.each([CODE_WITH_HOISTING_NO_JEST_GLOBALS, CODE_WITH_HOISTING_HAS_JEST_GLOBALS])(
     'should hoist correctly jest methods',
     (data) => {
       const out = transpile(data)

src/transformers/hoist-jest.ts

@@ -20,16 +20,6 @@ const HOIST_METHODS = ['mock', 'unmock', 'enableAutomock', 'disableAutomock', 'd
 const JEST_GLOBALS_MODULE_NAME = '@jest/globals'
 const JEST_GLOBAL_NAME = 'jest'
 const ROOT_LEVEL_AST = 1
-/**
- * @internal
- */
-export const name = 'hoisting-jest-mock'
-/**
- * Please increment this each time the code is modified
- *
- * @internal
- */
-export const version = 4
 
 /**
  * The factory of hoisting transformer factory

src/transformers/path-mapping.spec.ts

@@ -30,13 +30,6 @@ const TS_JS_CODE_WITH_PATH_ALIAS = `
 `
 
 describe('path-mapping', () => {
-  test('should have correct signature', () => {
-    expect(pathMapping.name).toBe('path-mapping')
-    expect(typeof pathMapping.version).toBe('number')
-    expect(pathMapping.version).toBeGreaterThan(0)
-    expect(typeof pathMapping.factory).toBe('function')
-  })
-
   test.each([
     {
       baseUrl: '.',

src/transformers/path-mapping.ts

@@ -11,16 +11,6 @@ import type * as _ts from 'typescript'
 
 import type { TsCompilerInstance } from '../types'
 
-/**
- * @internal
- */
-export const name = 'path-mapping'
-// increment this each time the code is modified
-/**
- * @internal
- */
-export const version = 1
-
 const isBaseDir = (base: string, dir: string) => !relative(base, dir)?.startsWith('.')
 
 /**

src/ts-jest-transformer.ts

@@ -90,15 +90,7 @@ export class TsJestTransformer implements Transformer {
         // this which does not depend on config
         jest.name = undefined as any
         jest.cacheDirectory = undefined as any
-        this._transformCfgStr = new JsonableValue({
-          digest: configSet.tsJestDigest,
-          babel: configSet.babelConfig,
-          ...jest,
-          tsconfig: {
-            options: configSet.parsedTsConfig.options,
-            raw: configSet.parsedTsConfig.raw,
-          },
-        }).serialized
+        this._transformCfgStr = `${new JsonableValue(jest).serialized}${configSet.cacheSuffix}`
         this._compiler = new TsJestCompiler(configSet, cacheFS)
         TsJestTransformer._cachedConfigSets.push({
           jestConfig: new JsonableValue(config),