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Distribute Cucumber features to workers run in parallel

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cuke-skywalker

Distribute Cucumber features to workers run in parallel.

Installation

This module requires a peerDependency of the cucumber package.

npm install --save-dev cucumber cuke-skywalker

Usage

./node_modules/.bin/cuke-skywalker --tags '@this and not @that'

All arguments will be passed directly to the workers. Features will be pre-filtered to get an accurate feature count, which is used to chunk them for the "uniform" distribution method.

Distribution Methods

roundrobin

This creates a queue of features and a set of worker pipelines. These pipelines grab features one at a time until the queue is exhausted. Use this method to leverage workers more efficiently.

uniform

This chunks features into uniformly-sized groups and sends them to each worker all at once. It results in fewer output files but can leave workers with nothing to do while longer feature sets are still running elsewhere.

Options

Options are passed as environment variables.

Variable Default Description
CUCUMBER_PARALLEL_WORKERS 4 Number of worker processes to distribute features to
CUCUMBER_PARALLEL_REPORT_DIR ./reports Output directory for worker output JSON files
CUCUMBER_PARALLEL_DISTRIBUTION roundrobin Method for distributing features (roundrobin or uniform)

HTML Report

cucumber-html-reporter is available to generate a decent-looking HTML reporter across all workers.

./node_modules/.bin/cuke-skywalker-report

CUCUMBER_PARALLEL_REPORT_DIR is used for the reports directory containing the worker output, and is also where the output is written. PLATFORM and ENVIRONMENT are available for metadata values.

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Distribute Cucumber features to workers run in parallel

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