Enable using 'ts-jest' package name as transform (Take 2) + fix #367

AUTHORS

@@ -31,6 +31,7 @@ Justin Bay <jwbay@users.noreply.github.com>
 Kulshekhar Kabra <kulshekhar@users.noreply.github.com>
 Kyle Roach <kroach.work@gmail.com>
 Marshall Bowers <elliott.codes@gmail.com>
+Martijn The <post@martijnthe.nl>
 Matheus Gambati <matheusgambati@gmail.com>
 Maxim Samoilov <samoilowmaxim@gmail.com>
 Mohammad Rajabifard <mo.rajbi@gmail.com>

README.md

@@ -57,7 +57,7 @@ Modify your project's `package.json` so that the `jest` section looks something
 {
   "jest": {
     "transform": {
-      "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
+      "^.+\\.tsx?$": "ts-jest"
     },
     "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
     "moduleFileExtensions": [
@@ -225,7 +225,7 @@ In `package.json`, inside `jest` section, the `transform` should be like this:
 ```json
 "transform": {
   "^.+\\.jsx?$": "<rootDir>/node_modules/babel-jest",
-  "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
+  "^.+\\.tsx?$": "ts-jest"
 }
 ```
 
@@ -236,7 +236,7 @@ Fully completed jest section should look like this:
     "preset": "react-native",
     "transform": {
       "^.+\\.jsx?$": "<rootDir>/node_modules/babel-jest",
-      "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
+      "^.+\\.tsx?$": "ts-jest"
     },
     "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
     "moduleFileExtensions": [
@@ -268,7 +268,7 @@ You'll also need to extend your `transform` regex with `html` extension:
 {
   "jest": {
     "transform": {
-      "^.+\\.(tsx?|html)$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
+      "^.+\\.(tsx?|html)$": "ts-jest"
     }
   }
 }

index.d.ts

@@ -0,0 +1,11 @@
+import * as _install from './install';
+import * as preprocessor from './preprocessor';
+
+interface TsJestModule {
+  install: typeof _install.install;
+  process: typeof preprocessor.process;
+  getCacheKey: typeof preprocessor.getCacheKey;
+}
+
+declare const tsJestModule: TsJestModule;
+export = tsJestModule;

index.js

@@ -1 +1,16 @@
-module.exports = require('./dist/index');
+// Avoid require()'ing the preprocessor when index.js gets loaded as part
+// of the transpiled test file output, to avoid tripping this bug in
+// babel-core: /~https://github.com/babel/babel/pull/6524 which is to be
+// fixed in babel-core 7.0.
+// Related ts-jest issue: /~https://github.com/kulshekhar/ts-jest/issues/367
+function lazyRequire(fnName) {
+  return function() {
+    return require('./dist/preprocessor')[fnName].apply(null, arguments);
+  };
+}
+
+module.exports = {
+  process: lazyRequire('process'),
+  getCacheKey: lazyRequire('getCacheKey'),
+  install: require('./dist/install').install,
+};

package.json

@@ -1,12 +1,12 @@
 {
   "name": "ts-jest",
-  "version": "21.2.2",
+  "version": "21.2.3",
   "main": "index.js",
   "types": "./dist/index.d.ts",
   "description": "A preprocessor with sourcemap support to help use Typescript with Jest",
   "scripts": {
-    "build": "tsc -p .",
-    "build:watch": "tsc -p . -w",
+    "build": "cpx index.d.ts dist/ && tsc -p .",
+    "build:watch": "cpx index.d.ts dist/ && tsc -p . -w",
     "clean": "rimraf dist/**/* && rimraf tests/simple/coverage && rimraf tests/simple-async/coverage",
     "clean-build": "npm run clean && npm run build",
     "pretest": "npm run tslint && npm run clean-build",
@@ -70,15 +70,16 @@
     "babel-plugin-istanbul": "^4.1.4",
     "babel-plugin-transform-es2015-modules-commonjs": "^6.24.1",
     "babel-preset-jest": "^21.2.0",
-    "fs-extra": "^4.0.0",
+    "cpx": "^1.5.0",
+    "fs-extra": "^4.0.2",
     "jest-config": "^21.2.1",
     "jest-util": "^21.2.1",
     "pkg-dir": "^2.0.0",
     "source-map-support": "^0.5.0",
     "yargs": "^10.0.3"
   },
   "peerDependencies": {
-    "jest": "^21.1.0 || ^21.1.0-alpha.1 || ^22.0.0-alpha.1",
+    "jest": "^21.1.0 || ^21.3.0-alpha.1 || ^22.0.0-alpha.1",
     "typescript": "2.x"
   },
   "devDependencies": {

scripts/tests.js

@@ -5,6 +5,7 @@ process.env.PUBLIC_URL = '';
 
 const jest = require('jest');
 const fs = require('fs');
+const fsx = require('fs-extra');
 const path = require('path');
 
 function dirExists(dirPath) {
@@ -38,9 +39,6 @@ function createIntegrationMock() {
   const testCaseFolders = getDirectories(testsRoot).filter(function(testDir) {
     return !(testDir.startsWith('__') && testDir.endsWith('__'));
   });
-  const filesToMock = getFiles('dist').filter(function(fileName) {
-    return fileName.endsWith('.js');
-  });
   for (let i = 0; i < testCaseFolders.length; i++) {
     const testCaseNodeModules = path.join(
       testsRoot,
@@ -49,16 +47,19 @@ function createIntegrationMock() {
     );
     if (!dirExists(testCaseNodeModules)) {
       fs.mkdirSync(testCaseNodeModules);
-      const testCaseModuleFolder = path.join(testCaseNodeModules, 'ts-jest');
-      fs.mkdirSync(testCaseModuleFolder);
-      filesToMock.forEach(function(fileName) {
-        const integrationMockPath = path.join(testCaseModuleFolder, fileName);
-        fs.appendFileSync(
-          integrationMockPath,
-          getIntegrationMockContent(fileName)
-        );
-      });
     }
+    const testCaseModuleFolder = path.join(testCaseNodeModules, 'ts-jest');
+    fsx.copySync('.', testCaseModuleFolder, {
+      overwrite: true,
+      filter: function(src, dest) {
+        const shouldCopy =
+          src === '.' ||
+          src.startsWith('dist') ||
+          src === 'package.json' ||
+          src.endsWith('.js');
+        return shouldCopy;
+      },
+    });
   }
 }
 

src/index.ts → src/install.ts

@@ -1,7 +1,6 @@
 import * as sourceMapSupport from 'source-map-support';
 import { defaultRetrieveFileHandler } from './default-retrieve-file-handler';
 
-export { transpileIfTypescript } from './transpile-if-ts';
 export function install() {
   const options: sourceMapSupport.Options = {};
 

src/preprocessor.ts

@@ -51,7 +51,10 @@ export function process(
       const outputFilePath = nodepath.join(
         config.cacheDirectory,
         '/ts-jest/',
-        crypto.createHash('md5').update(path).digest('hex'),
+        crypto
+          .createHash('md5')
+          .update(path)
+          .digest('hex'),
       );
 
       fs.outputFileSync(outputFilePath, outputText);

tests/__tests__/no-json-module-file-ext.spec.ts

@@ -0,0 +1,10 @@
+import runJest from '../__helpers__/runJest';
+
+// Regression test for
+// /~https://github.com/kulshekhar/ts-jest/issues/367
+describe('no json in moduleFileExtensions', () => {
+  it('should run successfully', () => {
+    const result = runJest('../no-json-module-file-ext', ['--no-cache']);
+    expect(result.status).toBe(0);
+  });
+});

tests/__tests__/transpile-if-ts.spec.ts

@@ -1,4 +1,4 @@
-import { transpileIfTypescript } from '../../src';
+import { transpileIfTypescript } from '../../src/transpile-if-ts';
 
 describe('transpileIfTypescript', () => {
   it('should ignore anything non-TS', () => {

tests/__tests__/ts-jest-module-interface.spec.ts

@@ -0,0 +1,8 @@
+import runJest from '../__helpers__/runJest';
+
+describe('ts-jest module interface', () => {
+  it('should run successfully', () => {
+    const result = runJest('../ts-jest-module-interface', ['--no-cache']);
+    expect(result.status).toBe(0);
+  });
+});

tests/babel-config-invalid/package.json

@@ -1,7 +1,7 @@
 {
 	"jest": {
 		"transform": {
-			".(ts|tsx)": "../../preprocessor.js"
+			".(ts|tsx)": "ts-jest"
 		},
 		"moduleDirectories": [
 			"node_modules",

tests/babel-config-merge-ignore-babelrc/package.json

@@ -1,7 +1,7 @@
 {
 	"jest": {
 		"transform": {
-			".(ts|tsx)": "../../preprocessor.js"
+			".(ts|tsx)": "ts-jest"
 		},
 		"moduleDirectories": [
 			"node_modules",

tests/babel-config-merge-with-babelrc/package.json

@@ -1,7 +1,7 @@
 {
 	"jest": {
 		"transform": {
-			".(ts|tsx)": "../../preprocessor.js"
+			".(ts|tsx)": "ts-jest"
 		},
 		"moduleDirectories": [
 			"node_modules",

tests/babel-config/package.json

@@ -1,7 +1,7 @@
 {
 	"jest": {
 		"transform": {
-			".(ts|tsx)": "../../preprocessor.js"
+			".(ts|tsx)": "ts-jest"
 		},
 		"moduleDirectories": [
 			"node_modules",

tests/button/package.json

@@ -1,7 +1,7 @@
 {
   "jest": {
     "transform": {
-      "^.+\\.tsx?$": "../../preprocessor.js"
+      "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
     },
     "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
     "moduleFileExtensions": [

tests/deprecated-tsconfig/package.json

@@ -4,7 +4,7 @@
       "__TS_CONFIG__": "tsconfig.json"
     },
     "transform": {
-      "^.+\\.tsx?$": "../../preprocessor.js"
+      "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
     },
     "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
     "coverageReporters": [

tests/dynamic-imports/jest.allowdefaultimports.json

@@ -6,7 +6,7 @@
     }
   },
   "transform": {
-    "^.+\\.tsx?$": "../../preprocessor.js"
+    "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
   },
   "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
   "moduleFileExtensions": [

tests/dynamic-imports/package.json

@@ -1,7 +1,7 @@
 {
   "jest": {
     "transform": {
-      "^.+\\.tsx?$": "../../preprocessor.js"
+      "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
     },
     "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
     "moduleFileExtensions": [

tests/hoist-errors/package.json

@@ -1,7 +1,7 @@
 {
   "jest": {
     "transform": {
-      "^.+\\.tsx?$": "../../preprocessor.js"
+      "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
     },
     "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
     "coverageReporters": [

tests/hoist-test/package.json

@@ -1,7 +1,7 @@
 {
   "jest": {
     "transform": {
-      "^.+\\.tsx?$": "../../preprocessor.js"
+      "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
     },
     "moduleDirectories": ["node_modules", "src"],
     "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",

tests/imports-test/package.json

@@ -1,9 +1,12 @@
 {
   "jest": {
     "transform": {
-      "^.+\\.tsx?$": "../../preprocessor.js"
+      "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
     },
-    "moduleDirectories": ["node_modules", "src"],
+    "moduleDirectories": [
+      "node_modules",
+      "src"
+    ],
     "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
     "moduleFileExtensions": [
       "ts",

tests/imports-test/tsconfig.json

@@ -8,4 +8,4 @@
     "allowJs": true,
     "baseUrl": "src"
   }
-}
+}

tests/jestconfig-test/jest.json

@@ -1,7 +1,7 @@
 {
   "rootDir": "./",
   "transform": {
-    "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
+    "^.+\\.tsx?$": "ts-jest"
   },
   "mapCoverage": true,
   "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",

tests/no-json-module-file-ext/__tests__/transpile-me.test.ts

@@ -0,0 +1 @@
+test('no json in moduleFileExtensions', () => {});

tests/no-json-module-file-ext/package.json

@@ -0,0 +1,19 @@
+{
+  "jest": {
+    "transform": {
+      "^.+\\.tsx?$": "ts-jest"
+    },
+    "moduleDirectories": [
+      "node_modules",
+      "src"
+    ],
+    "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
+    "moduleFileExtensions": [
+      "ts",
+      "tsx",
+      "js",
+      "jsx",
+      "the.important.thing.is.that.json.is.missing.here"
+    ]
+  }
+}

tests/no-json-module-file-ext/tsconfig.json

@@ -0,0 +1,11 @@
+{
+  "compilerOptions": {
+    "target": "ES5",
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "noEmitOnError": false,
+    "jsx": "react",
+    "allowJs": true,
+    "baseUrl": "src"
+  }
+}

tests/no-synthetic-default/package.json

@@ -1,7 +1,7 @@
 {
   "jest": {
     "transform": {
-      "^.+\\.tsx?$": "../../preprocessor.js"
+      "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
     },
     "moduleDirectories": ["node_modules", "src"],
     "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",

tests/simple-async/package.json

@@ -2,7 +2,7 @@
   "jest": {
     "rootDir": "./",
     "transform": {
-      "^.+\\.tsx?$": "../../preprocessor.js"
+      "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
     },
     "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
     "coverageReporters": [

tests/simple-long-path/package.json

@@ -1,7 +1,7 @@
 {
   "jest": {
     "transform": {
-      "^.+\\.tsx?$": "../../preprocessor.js"
+      "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
     },
     "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
     "coverageReporters": [

tests/simple/package.json

@@ -1,7 +1,7 @@
 {
   "jest": {
     "transform": {
-      "^.+\\.tsx?$": "../../preprocessor.js"
+      "^.+\\.tsx?$": "ts-jest"
     },
     "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
     "coverageReporters": [