Unable to parse cucumberjs output into json - error while generating the report with Cucumber-html-reporter

[ravim20051]

I am trying to execute the test in Protractor and generate the results in JSON format and integrationg Cucumber-html-reporter to take this JSON as input and generate the HTML report with Bootstrap options. But Not sucessfull

Below is my config file:

var reporter = require('cucumber-html-reporter');
exports.config = {
seleniumAddress: 'http://172.17.205.173:4444/wd/hub',
seleniumSessionId: '1bcc031df0fa1a241b0fd06445af324d',

capabilities: {
'browserName': 'chrome'
},

specs: ['Login_ZRPE.js'],
resultJsonOutputFile:'G:/Protractor/ZPlatform_Script/protractor-reports/cucumber_report.json',

onComplete: function() {
var options = {
theme: 'bootstrap',
jsonFile: 'G:/Protractor/ZPlatform_Script/protractor-reports/cucumber_report.json',
output: 'G:/Protractor/ZPlatform_Script/protractor-reports/cucumber_report.html',
reportSuiteAsScenarios: true,
launchReport: true,
metadata: {
"App Version":"0.3.2",
"Test Environment": "STAGING",
"Browser": "Chrome 54.0.2840.98",
"Platform": "Windows 10",
"Parallel": "Scenarios",
"Executed": "Remote"
}
};
reporter.generate(options);
}
};

Execute the above config file, Test executed successfully but while report generation the below error is displays. I have tried various options which is available in various forum but the below is not resolved. Please let me know how to solve this issue

Error:
1 spec, 0 failures
Finished in 11.412 seconds

Finished suite
Unable to parse cucumberjs output into json: 'G:/Protractor/ZPlatform_Script/protractor-reports/cucumber_report.json'
{ Error: G:/Protractor/ZPlatform_Script/protractor-reports/cucumber_report.json: ENOENT: no such file or directory, open 'G:\Protractor\ZPlatform_Script\protractor-reports\cucumber_r
eport.json'
at Object.fs.openSync (fs.js:653:18)
at Object.fs.readFileSync (fs.js:554:33)
at Object.readFileSync (C:\Users\zafin\AppData\Roaming\npm\node_modules\cucumber-html-reporter\node_modules\jsonfile\index.js:67:22)
at isValidJsonFile (C:\Users\zafin\AppData\Roaming\npm\node_modules\cucumber-html-reporter\lib\reporter.js:404:48)
at Object.generate (C:\Users\zafin\AppData\Roaming\npm\node_modules\cucumber-html-reporter\lib\reporter.js:426:9)
at Object.generateReport [as generate] (C:\Users\zafin\AppData\Roaming\npm\node_modules\cucumber-html-reporter\index.js:30:21)
at onComplete (G:\Protractor\ZPlatform_Script\config.js:37:14)
at C:\Users\zafin\AppData\Roaming\npm\node_modules\protractor\built\frameworks\jasmine.js:115:27
at module.exports.jasmineDone (C:\Users\zafin\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine\lib\reporters\completion_reporter.js:15:5)
at dispatch (C:\Users\zafin\AppData\Roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:4366:28)
errno: -4058,
code: 'ENOENT',
syscall: 'open',
path: 'G:\Protractor\ZPlatform_Script\protractor-reports\cucumber_report.json' }
[16:26:04] I/launcher - 0 instance(s) of WebDriver still running
[16:26:04] I/launcher - chrome #1 passed

[JesterXL]

Interesting, ok. Do you have a copy oft he JSON it rendered? If you could send that, I can try to run locally to.

Also, can you use a relative path to see if it works? Instead of:

G:/Protractor/ZPlatform_Script/protractor-reports/cucumber_report.json

Try:

./cucumber_report.json

[vvedachalam]

I am also facing same issue.

Protractor.config.js

const path = require('path');
const argv = require('yargs').argv;
const Reporter = require('./e2e/support/reporter');
// const jsonReports = process.cwd() + '/reports/json';
const jsonReports = path.join(process.cwd(), "/reports/json");

exports.config = {
framework: 'custom',
frameworkPath: require.resolve('protractor-cucumber-framework'),
specs: getFeatureFiles(),
cucumberOpts: {
compiler: ['ts:ts-node/register'],
require: ['./e2e/**/.e2e-spec.ts', './e2e/support/.js'],
strict: true, // fail if there are any undefined or pending steps
format: 'json:./reports/json/cucumber_report.json',
dryRun: false, // invoke every formatter without executing steps
tags: ["~@ignore"], // <string[]> (expression) only execute the features or scenarios with tags matching the expression
},
onPrepare: function () {
require('ts-node').register({
project: 'e2e/tsconfig.e2e.json'
});
console.log(path.join(process.cwd(), "/reports/json"));
browser.manage().window().maximize();

// implicit and page load timeouts

browser.manage().timeouts().pageLoadTimeout(40000);
browser.manage().timeouts().implicitlyWait(5000);

Reporter.createDirectory(jsonReports);

},
onComplete: function () {
Reporter.createHTMLReport();
},
getPageTimeout: 60000,
allScriptsTimeout: 60000,
disableChecks: true,
useAllAngular2AppRoots: true
};

Reporter.js

const fs = require("fs");
const mkdirp = require("mkdirp");
const path = require("path");
const reporter = require("cucumber-html-reporter");
const report = require("cucumber-html-report");
// const htmlReports = process.cwd() + "/reports/html";
// const targetJson = process.cwd() + "/reports/json/cucumber_report.json";
const jsonReports = path.join(process.cwd(), "/reports/json");
const htmlReports = path.join(process.cwd(), "/reports/html");
const targetJson = path.join(jsonReports , "/cucumber_report.json");

const cucumberReportOptions = {
source: targetJson,
dest: htmlReports,
name: "cucumber_report.html",
title: "Cucumber Report"
};
const cucumberReporteroptions = {
theme: "bootstrap",
jsonFile: targetJson,
output: htmlReports + "/cucumber_reporter.html",
reportSuiteAsScenarios: true
};

class Reporter {

static createDirectory(dirName) {
//Check if the directory exist
if (!fs.existsSync(dirName)) {
mkdirp.sync(dirName);
}
}

/**

• Create an html report output
  */
  static createHTMLReport() {
  try {
  reporter.generate(cucumberReporteroptions); //invoke cucumber-html-reporter
  report
  .create(cucumberReportOptions)
  .then(function () {
  console.log("cucumber_report.html created successfully!");
  })
  .catch(function (err) {
  if (err) {
  console.error(err);
  }
  });
  } catch (err) {
  if (err) {
  console.log("Failed to save cucumber test results to json file.");
  console.log(err);
  }
  }
  }

}

module.exports = Reporter;

ERROR:
Unable to parse cucumberjs output into json: 'C:\rc\E2E.Tests\ng\reports\json\cucumber_report.json' SyntaxError: C:\rc\E2E.Tests\ng\reports\json\cucumber_report.json: Unexpected end of JSON input
at JSON.parse ()
at Object.readFileSync (C:\rc\E2E.Tests\ng\node_modules\jsonfile\index.js:69:17)
Directory already exists: C:\rc\E2E.Tests\ng\reports\html
SyntaxError: Unexpected end of JSON input
at JSON.parse ()
at loadCucumberJson (C:\rc\E2E.Tests\ng\node_modules\cucumber-html-report\lib\report.js:276:15)
at exports.createReport (C:\rc\E2E.Tests\ng\node_modules\cucumber-html-report\lib\report.js:85:41)
at
at process._tickCallback (internal/process/next_tick.js:160:7)

[vvedachalam]

Just ignore me.. My json was empty.. should have checked that first :P

[srutikritee]

I am also getting the same issue:

Unable to parse cucumberjs output into json: 'reports/cucumber-report.json' SyntaxError: reports/cucumber-report.json: Unexpected end of JSON input.

Please help me to resolve this issue.

[aburra12]

Any solution to this problem? I am using cucumber-html-reporter too and stuck with this issue " Unable to parse cucumberjs output into json: '\e2e\reports\json\cucumber_report.json' { Error: \e2e\reports\json\cucumber_report.json: ENOENT: no such file or directory, open '\e2e\reports\json\cucumber_report.json'

[sumitroy2611]

I am facing the same issue. The thing which I could figure out from this is. Till the time we are expecting the html-reporter to read the updated report.json file and generate an Html report out of it, the cucumber-js process has not finished writing the test report. And hence, it fails to parse the file.

In my case, I am calling the report generation utility in Afterall hook. And running the tests in parallel. However, when I run the test in a single thread. Then this works fine and generates the report at the end of the execution

[akbarchandani]

I am facing the same issue. The thing which I could figure out from this is. Till the time we are expecting the html-reporter to read the updated report.json file and generate an Html report out of it, the cucumber-js process has not finished writing the test report. And hence, it fails to parse the file.

In my case, I am calling the report generation utility in Afterall hook. And running the tests in parallel. However, when I run the test in a single thread. Then this works fine and generates the report at the end of the execution

I am facing the same issue. Any solution to the problem?

[kalaiyarasanperumal]

i am facing same

⚠️ 😞 Unable to parse cucumberjs output into json: '%s' cucumber_report.json SyntaxError: cucumber_report.json: Unexpected end of JSON input

error message will display before execution

before cucumbe-html-report beofore json file has not updated of base of current execution

[norbertorok92]

any update on this?

[ashokkumar-sm]

any update on this?

[abhaysingh3GL]

Update the options to use html format, it should work

let options = [
'--require-module ts-node/register',
'--require ./steps/stepDef.steps.ts',
'--format progress',
'--format html:Reports/report.html',
'--format json:Reports/report.json'
].join(' ');