I have been utilizing Nightwatch-Cucumber to automate my end-to-end tests and I am encountering an issue when trying to generate a cucumber html report after test execution using cucumber-html-reporter. The error message I receive during the report generation by cucumber-html-reporter is as follows:
Unable to parse cucumberjs output into json: 'reports/cucumber.json' SyntaxError: reports/cucumber.json: Unexpected end of JSON input
at JSON.parse (<anonymous>)
at Object.readFileSync (/Users/GRme/projects/e2e-web-tests/node_modules/jsonfile/index.js:69:17)
I am uncertain as to why my generated cucumber.json file is invalid.
The versions I am currently using are:
"cucumber-html-reporter": "^2.0.0",
"nightwatch": "^0.9.16",
"nightwatch-cucumber": "^7.1.10",
This is how my configuration looks in nightwatch.conf.js:
require('nightwatch-cucumber')({
cucumberArgs: [
'--tags', '@run',
'--require', 'timeout.js',
'--require', 'hooks.js',
'--require', 'features/step_definitions',
'--format', 'pretty',
'--format', 'json:reports/cucumber.json',
'features']
});
Furthermore, this is the content of hooks.js, where the cucumber html report generation takes place:
const {client} = require('nightwatch-cucumber');
const {defineSupportCode} = require('cucumber');
var reporter = require('cucumber-html-reporter');
var options = {
theme: 'bootstrap',
jsonFile: 'reports/cucumber.json',
output: 'reports/cucumber_report.html',
reportSuiteAsScenarios: true,
launchReport: false,
//ignoreBadJsonFile: true,
name: 'NIKITA end-to-end tests',
brandTitle: 'NIKITA end-to-end tests',
storeScreenShots: true,
metadata: {
// "App Version": "0.0.1",
// "Test Environment": "AAT",
// "Browser": "Chrome XXX",
// "Platform": "Mac OS X",
}
};
defineSupportCode(({Before, After}) => {
Before(function() {
client.maximizeWindow();
});
After(function() {
reporter.generate(options);
});
});
The contents of my apparently invalid cucumber.json file look like this:
[
{
"keyword": "Feature",
"line": 1,
"name": "only a test feature",
"tags": [],
"uri": "/Users/GRme/projects/e2e-web-tests/features/testFeature.feature",
"elements": [
{
"keyword": "Scenario",
"line": 4,
"name": "only a test Scenario",
"tags": [
{
"line": 3,
"name": "@run"
}
],
"id": "only-a-test-feature;only-a-test-scenario",
"steps": [
{
"arguments": [],
"keyword": "Before",
"result": {
"status": "passed",
"duration": 1
},
"hidden": true,
"match": {
"location": "/Users/GRme/projects/e2e-web-tests/hooks.js:24"
}
},
{
"arguments": [],
"keyword": "When ",
"name": "\"1\" seconds waiting",
"result": {
"status": "passed",
"duration": 2615
},
"line": 5,
"match": {
"location": "/Users/GRme/projects/e2e-web-tests/features/step_definitions/abstractStepDefinition.js:10"
}
},
{
"arguments": [],
"keyword": "After",
"result": {
"status": "passed",
"duration": 4
},
"hidden": true,
"match": {
"location": "/Users/GRme/projects/e2e-web-tests/hooks.js:28"
}
}
]
}
],
"id": "only-a-test-feature"
}
]
When generating the Cucumber Html Report via Jenkins using the Cucumber Reports Plugin, it runs successfully.
My question now is, how can I address this issue and determine which framework (Nightwatch-Cucumber or cucumber-html-reporter) is causing the problem? Additionally, what part of my generated cucumber.json is considered invalid?