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Typescript Jest failing

See original GitHub issue

šŸ› Bug Report

It seems its failing on the tsconfig file? but I even tried to ignore tsconfig and it still fails parsing the tsconfig.json

To Reproduce

Running jest

Error:

` FAIL src/components/tests/StartPage.spec.ts ā— Test suite failed to run

Jest encountered an unexpected token

This usually means that you are trying to import a file which Jest cannot parse, e.g. it's not plain JavaScript.

By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules".

Here's what you can do:
 ā€¢ To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.
 ā€¢ If you need a custom transformation specify a "transform" option in your config.
 ā€¢ If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option.

You'll find more details and examples of these config options in the docs:
https://jestjs.io/docs/en/configuration.html

Details:

SyntaxError: Unexpected token ] in JSON at position 142
    at JSON.parse (<anonymous>)

  at parse (node_modules/tsconfig/src/tsconfig.ts:195:15)
  at readFileSync (node_modules/tsconfig/src/tsconfig.ts:181:10)
  at Object.loadSync (node_modules/tsconfig/src/tsconfig.ts:151:18)
  at find (node_modules/vue-jest/lib/load-typescript-config.js:33:39)
  at loadTypescriptConfig (node_modules/vue-jest/lib/load-typescript-config.js:73:26)
  at compileTypescript (node_modules/vue-jest/lib/compilers/typescript-compiler.js:9:20)
  at processScript (node_modules/vue-jest/lib/process.js:23:12)
  at Object.module.exports [as process] (node_modules/vue-jest/lib/process.js:42:18)
  at ScriptTransformer.transformSource (node_modules/@jest/transform/build/ScriptTransformer.js:479:35)`

Debug log:

1 verbose cli [ 'D:\\nodejs\\node.exe',
1 verbose cli   'D:\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'run',
1 verbose cli   'test' ]
2 info using npm@6.9.0
3 info using node@v10.16.3
4 verbose run-script [ 'pretest', 'test', 'posttest' ]
5 info lifecycle client@1.0.0~pretest: client@1.0.0
6 info lifecycle client@1.0.0~test: client@1.0.0
7 verbose lifecycle client@1.0.0~test: unsafe-perm in lifecycle true
8 verbose lifecycle client@1.0.0~test: PATH: D:\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;C:\Users\CarryAlex\Desktop\VueWebsite\createagame\node_modules\.bin;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\dotnet\;C:\Program Files\Git\cmd;D:\nodejs\;C:\Program Files\PostgreSQL\11\lib;C:\OpenSSL-Win64\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\TortoiseHg\;C:\Program Files\PuTTY\;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn\;D:\VirtualBox;C:\Users\CarryAlex\AppData\Local\Android\Sdk\tools\bin;C:\Users\CarryAlex\AppData\Local\Android\Sdk\platform-tools;C:\Users\CarryAlex\AppData\Local\Android\Sdk\emulator;C:\Android;D:\wamp\bin\php\php7.3.5;D:\wamp\bin\php\php7.3.5\ext;C:\ProgramData\ComposerSetup\bin;C:\Users\CarryAlex\AppData\Local\Microsoft\WindowsApps;D:\Microsoft VS Code\Microsoft VS Code\bin;C:\Users\CarryAlex\AppData\Roaming\npm;D:\Program Files (x86)\heroku\bin;D:\wamp\www\heroku\bin;C:\Users\CarryAlex\AppData\Roaming\Composer\vendor\bin;
9 verbose lifecycle client@1.0.0~test: CWD: C:\Users\CarryAlex\Desktop\VueWebsite\createagame
10 silly lifecycle client@1.0.0~test: Args: [ '/d /s /c', 'jest' ]
11 silly lifecycle client@1.0.0~test: Returned: code: 1  signal: null
12 info lifecycle client@1.0.0~test: Failed to exec test script
13 verbose stack Error: client@1.0.0 test: `jest`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (D:\nodejs\node_modules\npm\node_modules\npm-lifecycle\index.js:301:16)
13 verbose stack     at EventEmitter.emit (events.js:198:13)
13 verbose stack     at ChildProcess.<anonymous> (D:\nodejs\node_modules\npm\node_modules\npm-lifecycle\lib\spawn.js:55:14)
13 verbose stack     at ChildProcess.emit (events.js:198:13)
13 verbose stack     at maybeClose (internal/child_process.js:982:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)
14 verbose pkgid client@1.0.0
15 verbose cwd C:\Users\CarryAlex\Desktop\VueWebsite\createagame
16 verbose Windows_NT 10.0.18362
17 verbose argv "D:\\nodejs\\node.exe" "D:\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "test"
18 verbose node v10.16.3
19 verbose npm  v6.9.0
20 error code ELIFECYCLE
21 error errno 1
22 error client@1.0.0 test: `jest`
22 error Exit status 1
23 error Failed at the client@1.0.0 test script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]

ts-jest.log

{"context":{"logLevel":20,"namespace":"Importer","package":"ts-jest","version":"25.4.0"},"message":"creating Importer singleton","sequence":1,"time":"2020-04-22T10:30:36.689Z"}
{"context":{"allowJs":false,"logLevel":20,"namespace":"jest-preset","package":"ts-jest","version":"25.4.0"},"message":"creating jest presets not handling JavaScript files","sequence":2,"time":"2020-04-22T10:30:36.696Z"}
{"context":{"actualVersion":"25.4.0","expectedVersion":">=25 <26","logLevel":20,"namespace":"versions","package":"ts-jest","version":"25.4.0"},"message":"checking version of jest: OK","sequence":3,"time":"2020-04-22T10:30:36.699Z"}
{"context":{"baseOptions":{},"logLevel":20,"namespace":"jest-transformer","package":"ts-jest","transformerId":1,"version":"25.4.0"},"message":"created new transformer","sequence":4,"time":"2020-04-22T10:30:36.699Z"}
{"context":{"fileName":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\src\\components\\__tests__\\StartPage.spec.ts","logLevel":20,"namespace":"jest-transformer","package":"ts-jest","transformOptions":{"config":{"automock":false,"browser":false,"cache":true,"cacheDirectory":"C:\\Users\\CarryAlex\\AppData\\Local\\Temp\\jest","clearMocks":false,"coveragePathIgnorePatterns":["\\\\node_modules\\\\"],"cwd":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame","detectLeaks":false,"detectOpenHandles":false,"errorOnDeprecated":false,"extraGlobals":[],"forceCoverageMatch":[],"globals":{},"haste":{"computeSha1":false,"providesModuleNodeModules":[],"throwOnModuleCollision":false},"moduleDirectories":["node_modules"],"moduleFileExtensions":["js","ts","json","vue"],"moduleNameMapper":[],"modulePathIgnorePatterns":[],"name":"7ae6edb01373c74b3d65f5f4ee39af8a","prettierPath":"prettier","resetMocks":false,"resetModules":false,"restoreMocks":false,"rootDir":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame","roots":["C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame"],"runner":"jest-runner","setupFiles":[],"setupFilesAfterEnv":[],"skipFilter":false,"snapshotSerializers":[],"testEnvironment":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\node_modules\\jest-environment-jsdom\\build\\index.js","testEnvironmentOptions":{},"testLocationInResults":false,"testMatch":[],"testPathIgnorePatterns":["\\\\node_modules\\\\"],"testRegex":["(\\\\__tests__\\\\.*|(\\.|\\\\)(test|spec))\\.(jsx?|tsx?)$"],"testRunner":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\node_modules\\jest-jasmine2\\build\\index.js","testURL":"http://localhost/","timers":"real","transform":[[".*\\.(vue)$","C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\node_modules\\vue-jest\\vue-jest.js",{}],["^.+\\.tsx?$","C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\node_modules\\ts-jest\\dist\\index.js",{}]],"transformIgnorePatterns":["\\\\node_modules\\\\"],"watchPathIgnorePatterns":[]},"instrument":false,"rootDir":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame","supportsDynamicImport":false,"supportsStaticESM":false},"transformerId":1,"version":"25.4.0"},"message":"computing cache key for C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\src\\components\\__tests__\\StartPage.spec.ts","sequence":5,"time":"2020-04-22T10:30:36.700Z"}
{"context":{"logLevel":30,"namespace":"jest-transformer","package":"ts-jest","transformerId":1,"version":"25.4.0"},"message":"no matching config-set found, creating a new one","sequence":6,"time":"2020-04-22T10:30:36.700Z"}
{"context":{"config":{"automock":false,"browser":false,"cache":true,"cacheDirectory":"C:\\Users\\CarryAlex\\AppData\\Local\\Temp\\jest","clearMocks":false,"coveragePathIgnorePatterns":["\\\\node_modules\\\\"],"cwd":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame","detectLeaks":false,"detectOpenHandles":false,"errorOnDeprecated":false,"extraGlobals":[],"forceCoverageMatch":[],"globals":{},"haste":{"computeSha1":false,"providesModuleNodeModules":[],"throwOnModuleCollision":false},"moduleDirectories":["node_modules"],"moduleFileExtensions":["js","ts","json","vue"],"moduleNameMapper":[],"modulePathIgnorePatterns":[],"name":"7ae6edb01373c74b3d65f5f4ee39af8a","prettierPath":"prettier","resetMocks":false,"resetModules":false,"restoreMocks":false,"rootDir":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame","roots":["C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame"],"runner":"jest-runner","setupFiles":[],"setupFilesAfterEnv":[],"skipFilter":false,"snapshotSerializers":[],"testEnvironment":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\node_modules\\jest-environment-jsdom\\build\\index.js","testEnvironmentOptions":{},"testLocationInResults":false,"testMatch":[],"testPathIgnorePatterns":["\\\\node_modules\\\\"],"testRegex":["(\\\\__tests__\\\\.*|(\\.|\\\\)(test|spec))\\.(jsx?|tsx?)$"],"testRunner":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\node_modules\\jest-jasmine2\\build\\index.js","testURL":"http://localhost/","timers":"real","transform":[[".*\\.(vue)$","C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\node_modules\\vue-jest\\vue-jest.js",{}],["^.+\\.tsx?$","C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\node_modules\\ts-jest\\dist\\index.js",{}]],"transformIgnorePatterns":["\\\\node_modules\\\\"],"watchPathIgnorePatterns":[]},"logLevel":20,"namespace":"backports","package":"ts-jest","transformerId":1,"version":"25.4.0"},"message":"backporting config","sequence":7,"time":"2020-04-22T10:30:36.701Z"}
{"context":{"jestConfig":{"automock":false,"browser":false,"cache":true,"cacheDirectory":"C:\\Users\\CarryAlex\\AppData\\Local\\Temp\\jest","clearMocks":false,"coveragePathIgnorePatterns":["\\\\node_modules\\\\"],"cwd":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame","detectLeaks":false,"detectOpenHandles":false,"errorOnDeprecated":false,"extraGlobals":[],"forceCoverageMatch":[],"globals":{"ts-jest":{}},"haste":{"computeSha1":false,"providesModuleNodeModules":[],"throwOnModuleCollision":false},"moduleDirectories":["node_modules"],"moduleFileExtensions":["js","ts","json","vue"],"moduleNameMapper":[],"modulePathIgnorePatterns":[],"name":"7ae6edb01373c74b3d65f5f4ee39af8a","prettierPath":"prettier","resetMocks":false,"resetModules":false,"restoreMocks":false,"rootDir":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame","roots":["C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame"],"runner":"jest-runner","setupFiles":[],"setupFilesAfterEnv":[],"skipFilter":false,"snapshotSerializers":[],"testEnvironment":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\node_modules\\jest-environment-jsdom\\build\\index.js","testEnvironmentOptions":{},"testLocationInResults":false,"testMatch":[],"testPathIgnorePatterns":["\\\\node_modules\\\\"],"testRegex":["(\\\\__tests__\\\\.*|(\\.|\\\\)(test|spec))\\.(jsx?|tsx?)$"],"testRunner":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\node_modules\\jest-jasmine2\\build\\index.js","testURL":"http://localhost/","timers":"real","transform":[[".*\\.(vue)$","C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\node_modules\\vue-jest\\vue-jest.js",{}],["^.+\\.tsx?$","C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\node_modules\\ts-jest\\dist\\index.js",{}]],"transformIgnorePatterns":["\\\\node_modules\\\\"],"watchPathIgnorePatterns":[]},"logLevel":20,"namespace":"config","package":"ts-jest","transformerId":1,"version":"25.4.0"},"message":"normalized jest config","sequence":8,"time":"2020-04-22T10:30:36.701Z"}
{"context":{"logLevel":20,"namespace":"config","package":"ts-jest","transformerId":1,"tsJestConfig":{"compiler":"typescript","compilerHost":false,"diagnostics":{"ignoreCodes":[6059,18002,18003],"pretty":true,"throws":true},"incremental":true,"isolatedModules":false,"packageJson":{"kind":"file"},"transformers":[],"tsConfig":{"kind":"file"}},"version":"25.4.0"},"message":"normalized ts-jest config","sequence":9,"time":"2020-04-22T10:30:36.702Z"}
{"context":{"logLevel":20,"namespace":"config","package":"ts-jest","transformerId":1,"version":"25.4.0"},"message":"babel is disabled","sequence":10,"time":"2020-04-22T10:30:36.730Z"}
{"context":{"logLevel":20,"namespace":"Importer","package":"ts-jest","requireResult":{"exists":true,"given":"typescript","path":"C:\\Users\\CarryAlex\\Desktop\\VueWebsite\\createagame\\node_modules\\typescript\\lib\\typescript.js"},"version":"25.4.0"},"message":"loaded module typescript","sequence":11,"time":"2020-04-22T10:30:36.732Z"}
{"context":{"logLevel":20,"namespace":"Importer","package":"ts-jest","version":"25.4.0"},"message":"patching typescript","sequence":12,"time":"2020-04-22T10:30:36.732Z"}
{"context":{"actualVersion":"3.8.3","expectedVersion":">=3.4 <4","logLevel":20,"namespace":"versions","package":"ts-jest","version":"25.4.0"},"message":"checking version of typescript: OK","sequence":13,"time":"2020-04-22T10:30:36.733Z"}
{"context":{"logLevel":20,"namespace":"config","package":"ts-jest","transformerId":1,"tsConfigFileName":"C:/Users/CarryAlex/Desktop/VueWebsite/createagame/tsconfig.json","version":"25.4.0"},"message":"readTsConfig(): reading C:/Users/CarryAlex/Desktop/VueWebsite/createagame/tsconfig.json","sequence":14,"time":"2020-04-22T10:30:36.733Z"}
{"context":{"logLevel":20,"namespace":"config","package":"ts-jest","transformerId":1,"tsconfig":{"input":{"compilerOptions":{"experimentalDecorators":true},"exclude":["node_modules"],"include":["src/**/*.ts","src/**/*.vue"]},"resolved":{"compileOnSave":false,"configFileSpecs":{"excludeSpecs":["node_modules"],"includeSpecs":["src/**/*.ts","src/**/*.vue"],"validatedExcludeSpecs":["node_modules"],"validatedIncludeSpecs":["src/**/*.ts","src/**/*.vue"],"wildcardDirectories":{"c:/users/carryalex/desktop/vuewebsite/createagame/src":1}},"errors":[],"fileNames":["C:/Users/CarryAlex/Desktop/VueWebsite/createagame/src/main.ts","C:/Users/CarryAlex/Desktop/VueWebsite/createagame/src/shims-vue.d.ts","C:/Users/CarryAlex/Desktop/VueWebsite/createagame/src/components/__tests__/StartPage.spec.ts","C:/Users/CarryAlex/Desktop/VueWebsite/createagame/src/dataservice/dataService.ts","C:/Users/CarryAlex/Desktop/VueWebsite/createagame/src/store/index.ts"],"options":{"configFilePath":"C:/Users/CarryAlex/Desktop/VueWebsite/createagame/tsconfig.json","declaration":false,"experimentalDecorators":true,"inlineSourceMap":false,"inlineSources":true,"module":1,"noEmit":false,"removeComments":false,"sourceMap":true,"target":1},"raw":{"compileOnSave":false,"compilerOptions":{"experimentalDecorators":true},"exclude":["node_modules"],"include":["src/**/*.ts","src/**/*.vue"]},"typeAcquisition":{"enable":false,"exclude":[],"include":[]},"wildcardDirectories":{"c:/users/carryalex/desktop/vuewebsite/createagame/src":1}}},"version":"25.4.0"},"message":"normalized typescript config","sequence":15,"time":"2020-04-22T10:30:36.750Z"}

envinfo

System:
    OS: Windows 10

Npm packages:
    jest
    ts-jest
    typescript
    vue-jest
    vue-cli
    webpack

tsconfig.json

    "compilerOptions": {
      "experimentalDecorators": true
    },
    "include": [
      "src/**/*.ts",
      "src/**/*.vue",
    ],
    "exclude": [
      "node_modules"
    ]
   }```

package.json:

"jest": {
        "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
        "moduleFileExtensions": ["js", "ts", "json", "vue"],
        "transform": {
            ".*\\.(vue)$": "vue-jest",
            "^.+\\.tsx?$": "ts-jest"
        },
        "testURL": "http://localhost/"
    }

Issue Analytics

  • State:closed
  • Created 3 years ago
  • Comments:5

github_iconTop GitHub Comments

32reactions
sethiddencommented, May 19, 2020

If youā€™re a dumbass like me and youā€™re getting this error this is most likely - as ahnpnl said above - you have a syntax error in your tsconfig.json.

In my case, this was

//tsconfig.json
 ...
    "experimentalDecorators": true,
    "incremental": true, // <-- trailing comma that JSON doesn't support
  },
  "include": [

Note that VSCODE WILL NOT REPORT A SYNTAX ERROR IN TSCONFIG.JSON IF YOU MAKE THIS MISTAKE. You will need to check the file manually for errors

5reactions
elveswcommented, Mar 20, 2021

3 hours looking, and the problem was a comma. Thanks, it could be 3 days.

If youā€™re a dumbass like me and youā€™re getting this error this is most likely - as ahnpnl said above - you have a syntax error in your tsconfig.json.

In my case, this was

//tsconfig.json
 ...
    "experimentalDecorators": true,
    "incremental": true, // <-- trailing comma that JSON doesn't support
  },
  "include": [

Note that VSCODE WILL NOT REPORT A SYNTAX ERROR IN TSCONFIG.JSON IF YOU MAKE THIS MISTAKE. You will need to check the file manually for errors

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