Created
January 17, 2020 17:14
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Cucumber Nx builder example
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const { | |
createBuilder, | |
targetFromTargetString, | |
scheduleTargetAndForget, | |
} = require('@angular-devkit/architect'); | |
const { readWorkspaceJson } = require('@yolkai/nx-workspace'); | |
const execa = require('execa'); | |
const path = require('path'); | |
const { Observable, from, of } = require('rxjs'); | |
const { catchError, map, mergeMap } = require('rxjs/operators'); | |
/** | |
* Run the Cucumber tests. | |
* | |
* This builder works by first bundling support sources (such as `step_definitions/` and `support/` files) | |
* via the `bundleTarget` option. Then, cucumber-js is executed on a glob of feature files given | |
* by the `features` option. | |
* | |
* This was created following a tutorial: | |
* https://nxplaybook.com/courses/701247/lectures/12570377 | |
*/ | |
function run(options, context) { | |
const projectName = context.target.project; | |
const project = readWorkspaceJson().projects[projectName]; | |
const bundleTarget = targetFromTargetString(options.bundleTarget); | |
const bundle$ = scheduleTargetAndForget(context, bundleTarget); | |
return bundle$.pipe( | |
mergeMap(result => { | |
const supportEntryPath = result.outfile; | |
const features = options.feature; | |
const subprocess = execa(path.join('node_modules', '.bin', 'cucumber-js'), [ | |
options.features, | |
'--require', | |
supportEntryPath, | |
]); | |
subprocess.stdout.pipe(process.stdout); | |
subprocess.stderr.pipe(process.stderr); | |
return from(subprocess); | |
}), | |
map(result => { | |
return { success: true }; | |
}), | |
catchError(error => { | |
context.logger.error('Cucumber tests failed. See errors above.'); | |
return of({ success: false }); | |
}), | |
); | |
} | |
module.exports = { | |
default: createBuilder(run), | |
}; |
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{ | |
"title": "Cucumber", | |
"description": "Execute Cucumber tests", | |
"type": "object", | |
"properties": { | |
"bundleTarget": { | |
"type": "string", | |
"description": "Target which bundles support files into a single entry point." | |
}, | |
"features": { | |
"type": "string", | |
"description": "Glob of Cucumber feature files." | |
} | |
}, | |
"required": ["bundleTarget", "features"] | |
} |
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{ | |
"version": 1, | |
"projects": { | |
"myapp": { | |
"root": "apps/myapp", | |
"sourceRoot": "apps/myapp", | |
"projectType": "application", | |
"schematics": {}, | |
"architect": { | |
"bundleCucumber": { | |
"builder": "@nrwl/node:build", | |
"options": { | |
"outputPath": "dist/apps/myapp-e2e/cucumber", | |
"main": "apps/myapp-e2e/cucumber/support.js", | |
"tsConfig": "apps/myapp-e2e/tsconfig.cucumber.json", | |
"assets": [] | |
} | |
}, | |
"cucumber": { | |
"builder": "./tools/builders:cucumber", | |
"options": { | |
"bundleTarget": "myapp-e2e:bundleCucumber", | |
"features": "apps/myapp-e2e/cucumber/features/**" | |
} | |
} | |
} | |
} | |
} | |
} |
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