build(devs-infra): build package with target es2015 (#2130)

BREAKING CHANGE:
`ts-jest` no longer ships with `es5` build but now with `es2015`

Author: ahnpnl

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, TsJestGlobalOptions } from '../types'
+import type { TsCompiler, TsJestGlobalOptions } from '../types'
 import type { ImportReasons } from '../utils/messages'
 
 export function filePath(relPath: string): string {
@@ -28,14 +28,6 @@ function getJestConfig<T extends Config.ProjectConfig>(
   return res
 }
 
-export function babelConfig<T extends BabelConfig>(options?: BabelConfig): T {
-  return {
-    ...options,
-    presets: [...(options && options.presets)],
-    plugins: [...(options && options.plugins)],
-  } as any
-}
-
 export function importReason(text = '[[BECAUSE]]'): ImportReasons {
   return text as any
 }

src/compiler/__snapshots__/language-service.spec.ts.snap

@@ -133,13 +133,13 @@ Array [
 exports[`Language service jsx option should compile tsx file for jsx preserve 1`] = `
   ===[ FILE: test-jsx.tsx ]=======================================================
   "use strict";
-  var App = function () {
+  const App = () => {
       return <>Test</>;
   };
-  //# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJmaWxlIjoidGVzdC1qc3gudHN4IiwibWFwcGluZ3MiOiI7QUFDUSxJQUFNLEdBQUcsR0FBRztJQUNWLE9BQU8sRUFBRSxJQUFJLEdBQUcsQ0FBQTtBQUNsQixDQUFDLENBQUEiLCJuYW1lcyI6W10sInNvdXJjZXMiOlsidGVzdC1qc3gudHN4Il0sInNvdXJjZXNDb250ZW50IjpbIlxuICAgICAgICBjb25zdCBBcHAgPSAoKSA9PiB7XG4gICAgICAgICAgcmV0dXJuIDw+VGVzdDwvPlxuICAgICAgICB9XG4gICAgICAiXSwidmVyc2lvbiI6M30=
+  //# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJmaWxlIjoidGVzdC1qc3gudHN4IiwibWFwcGluZ3MiOiI7QUFDUSxNQUFNLEdBQUcsR0FBRyxHQUFHLEVBQUU7SUFDZixPQUFPLEVBQUUsSUFBSSxHQUFHLENBQUE7QUFDbEIsQ0FBQyxDQUFBIiwibmFtZXMiOltdLCJzb3VyY2VzIjpbInRlc3QtanN4LnRzeCJdLCJzb3VyY2VzQ29udGVudCI6WyJcbiAgICAgICAgY29uc3QgQXBwID0gKCkgPT4ge1xuICAgICAgICAgIHJldHVybiA8PlRlc3Q8Lz5cbiAgICAgICAgfVxuICAgICAgIl0sInZlcnNpb24iOjN9
   ===[ INLINE SOURCE MAPS ]=======================================================
   file: test-jsx.tsx
-  mappings: ';AACQ,IAAM,GAAG,GAAG;IACV,OAAO,EAAE,IAAI,GAAG,CAAA;AAClB,CAAC,CAAA'
+  mappings: ';AACQ,MAAM,GAAG,GAAG,GAAG,EAAE;IACf,OAAO,EAAE,IAAI,GAAG,CAAA;AAClB,CAAC,CAAA'
   names: []
   sources:
     - test-jsx.tsx
@@ -157,13 +157,13 @@ exports[`Language service jsx option should compile tsx file for jsx preserve 1`
 exports[`Language service jsx option should compile tsx file for other jsx options 1`] = `
   ===[ FILE: test-jsx.tsx ]=======================================================
   "use strict";
-  var App = function () {
+  const App = () => {
       return React.createElement(React.Fragment, null, "Test");
   };
-  //# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJmaWxlIjoidGVzdC1qc3gudHN4IiwibWFwcGluZ3MiOiI7QUFDUSxJQUFNLEdBQUcsR0FBRztJQUNWLE9BQU8saURBQVMsQ0FBQTtBQUNsQixDQUFDLENBQUEiLCJuYW1lcyI6W10sInNvdXJjZXMiOlsidGVzdC1qc3gudHN4Il0sInNvdXJjZXNDb250ZW50IjpbIlxuICAgICAgICBjb25zdCBBcHAgPSAoKSA9PiB7XG4gICAgICAgICAgcmV0dXJuIDw+VGVzdDwvPlxuICAgICAgICB9XG4gICAgICAiXSwidmVyc2lvbiI6M30=
+  //# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJmaWxlIjoidGVzdC1qc3gudHN4IiwibWFwcGluZ3MiOiI7QUFDUSxNQUFNLEdBQUcsR0FBRyxHQUFHLEVBQUU7SUFDZixPQUFPLGlEQUFTLENBQUE7QUFDbEIsQ0FBQyxDQUFBIiwibmFtZXMiOltdLCJzb3VyY2VzIjpbInRlc3QtanN4LnRzeCJdLCJzb3VyY2VzQ29udGVudCI6WyJcbiAgICAgICAgY29uc3QgQXBwID0gKCkgPT4ge1xuICAgICAgICAgIHJldHVybiA8PlRlc3Q8Lz5cbiAgICAgICAgfVxuICAgICAgIl0sInZlcnNpb24iOjN9
   ===[ INLINE SOURCE MAPS ]=======================================================
   file: test-jsx.tsx
-  mappings: ';AACQ,IAAM,GAAG,GAAG;IACV,OAAO,iDAAS,CAAA;AAClB,CAAC,CAAA'
+  mappings: ';AACQ,MAAM,GAAG,GAAG,GAAG,EAAE;IACf,OAAO,iDAAS,CAAA;AAClB,CAAC,CAAA'
   names: []
   sources:
     - test-jsx.tsx

src/compiler/__snapshots__/transpiler.spec.ts.snap

@@ -7,13 +7,13 @@ exports[`Transpiler diagnostics should report diagnostics related to codes with
 exports[`Transpiler jsx option should compile tsx file for jsx preserve 1`] = `
   ===[ FILE: foo.tsx ]============================================================
   "use strict";
-  var App = function () {
+  const App = () => {
       return <>Test</>;
   };
-  //# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJmaWxlIjoiZm9vLnRzeCIsIm1hcHBpbmdzIjoiO0FBQ1EsSUFBTSxHQUFHLEdBQUc7SUFDVixPQUFPLEVBQUUsSUFBSSxHQUFHLENBQUE7QUFDbEIsQ0FBQyxDQUFBIiwibmFtZXMiOltdLCJzb3VyY2VzIjpbImZvby50c3giXSwic291cmNlc0NvbnRlbnQiOlsiXG4gICAgICAgIGNvbnN0IEFwcCA9ICgpID0+IHtcbiAgICAgICAgICByZXR1cm4gPD5UZXN0PC8+XG4gICAgICAgIH1cbiAgICAgICJdLCJ2ZXJzaW9uIjozfQ==
+  //# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJmaWxlIjoiZm9vLnRzeCIsIm1hcHBpbmdzIjoiO0FBQ1EsTUFBTSxHQUFHLEdBQUcsR0FBRyxFQUFFO0lBQ2YsT0FBTyxFQUFFLElBQUksR0FBRyxDQUFBO0FBQ2xCLENBQUMsQ0FBQSIsIm5hbWVzIjpbXSwic291cmNlcyI6WyJmb28udHN4Il0sInNvdXJjZXNDb250ZW50IjpbIlxuICAgICAgICBjb25zdCBBcHAgPSAoKSA9PiB7XG4gICAgICAgICAgcmV0dXJuIDw+VGVzdDwvPlxuICAgICAgICB9XG4gICAgICAiXSwidmVyc2lvbiI6M30=
   ===[ INLINE SOURCE MAPS ]=======================================================
   file: foo.tsx
-  mappings: ';AACQ,IAAM,GAAG,GAAG;IACV,OAAO,EAAE,IAAI,GAAG,CAAA;AAClB,CAAC,CAAA'
+  mappings: ';AACQ,MAAM,GAAG,GAAG,GAAG,EAAE;IACf,OAAO,EAAE,IAAI,GAAG,CAAA;AAClB,CAAC,CAAA'
   names: []
   sources:
     - foo.tsx
@@ -31,13 +31,13 @@ exports[`Transpiler jsx option should compile tsx file for jsx preserve 1`] = `
 exports[`Transpiler jsx option should compile tsx file for other jsx options 1`] = `
   ===[ FILE: foo.tsx ]============================================================
   "use strict";
-  var App = function () {
+  const App = () => {
       return React.createElement(React.Fragment, null, "Test");
   };
-  //# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJmaWxlIjoiZm9vLnRzeCIsIm1hcHBpbmdzIjoiO0FBQ1EsSUFBTSxHQUFHLEdBQUc7SUFDVixPQUFPLGlEQUFTLENBQUE7QUFDbEIsQ0FBQyxDQUFBIiwibmFtZXMiOltdLCJzb3VyY2VzIjpbImZvby50c3giXSwic291cmNlc0NvbnRlbnQiOlsiXG4gICAgICAgIGNvbnN0IEFwcCA9ICgpID0+IHtcbiAgICAgICAgICByZXR1cm4gPD5UZXN0PC8+XG4gICAgICAgIH1cbiAgICAgICJdLCJ2ZXJzaW9uIjozfQ==
+  //# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJmaWxlIjoiZm9vLnRzeCIsIm1hcHBpbmdzIjoiO0FBQ1EsTUFBTSxHQUFHLEdBQUcsR0FBRyxFQUFFO0lBQ2YsT0FBTyxpREFBUyxDQUFBO0FBQ2xCLENBQUMsQ0FBQSIsIm5hbWVzIjpbXSwic291cmNlcyI6WyJmb28udHN4Il0sInNvdXJjZXNDb250ZW50IjpbIlxuICAgICAgICBjb25zdCBBcHAgPSAoKSA9PiB7XG4gICAgICAgICAgcmV0dXJuIDw+VGVzdDwvPlxuICAgICAgICB9XG4gICAgICAiXSwidmVyc2lvbiI6M30=
   ===[ INLINE SOURCE MAPS ]=======================================================
   file: foo.tsx
-  mappings: ';AACQ,IAAM,GAAG,GAAG;IACV,OAAO,iDAAS,CAAA;AAClB,CAAC,CAAA'
+  mappings: ';AACQ,MAAM,GAAG,GAAG,GAAG,EAAE;IACf,OAAO,iDAAS,CAAA;AAClB,CAAC,CAAA'
   names: []
   sources:
     - foo.tsx

src/config/config-set.ts

@@ -305,9 +305,7 @@ export class ConfigSet {
           }
         })
       if (astTransformers.before) {
-        this.customTransformers = {
-          before: [...this.customTransformers.before, ...resolveTransformers(astTransformers.before)],
-        }
+        this.customTransformers.before?.push(...resolveTransformers(astTransformers.before))
       }
       if (astTransformers.after) {
         this.customTransformers = {

tsconfig.json

@@ -1,17 +1,14 @@
 {
   "compilerOptions": {
-    "target": "es5",
-    "module": "commonjs",
+    "target": "ES2015",
+    "module": "CommonJS",
     "declaration": false,
     "noEmit": true,
     "downlevelIteration": true,
     "esModuleInterop": true,
     "experimentalDecorators": true,
     "inlineSourceMap": true,
-    "lib": [
-      "es2015",
-      "es2016.array.include"
-    ],
+    "lib": ["esnext"],
     "moduleResolution": "node",
     "resolveJsonModule": true,
     "noEmitOnError": true,