You probably want to use cypress-grep instead: no TypeScript or JavaScript parsing problems.
User space solution for picking Cypress tests to run
Assuming Cypress has been installed:
npm install --save-dev cypress-select-tests- this package assumes JavaScript specs
- this package might conflict and/or overwrite other Cypress Browserify preprocessor settings
Mocha has --fgrep, --grep and --invert CLI arguments to select spec files and tests to run. This package provides imitation using strings. In your cypress/plugins/index.js use:
const selectTestsWithGrep = require('cypress-select-tests/grep')
module.exports = (on, config) => {
on('file:preprocessor', selectTestsWithGrep(config))
}Then open or run Cypress and use environment variables to pass strings to find. There are various ways to pass environment variables, here is via CLI arguments:
## run tests with "works" in their full titles
$ npx cypress open --env grep=works
## runs only specs with "foo" in their filename
$ npx cypress run --env fgrep=foo
## runs only tests with "works" from specs with "foo"
$ npx cypress run --env fgrep=foo,grep=works
## runs tests with "feature A" in the title
$ npx cypress run --env grep='feature A'
## runs only specs NOT with "foo" in their filename
$ npx cypress run --env fgrep=foo,invert=true
## runs tests NOT with "feature A" in the title
$ npx cypress run --env grep='feature A',invert=trueThe test picking function is available by itself in src/grep-pick-tests.js file.
In your cypress/plugins/index.js use this module as a file preprocessor and write your own pickTests function.
const selectTests = require('cypress-select-tests')
// return test names you want to run
const pickTests = (filename, foundTests, cypressConfig) => {
// found tests will be names of the tests found in "filename" spec
// it is a list of names, each name an Array of strings
// ['suite 1', 'suite 2', ..., 'test name']
// return [] to skip ALL tests
// OR
// let's only run tests with "does" in the title
return foundTests.filter(fullTestName => fullTestName.join(' ').includes('does'))
}
module.exports = (on, config) => {
on('file:preprocessor', selectTests(config, pickTests))
}Using pickTests allows you to implement your own test selection logic. All tests filtered out will be shown / counted as pending.
If you are adjusting Browserify options, and would like to use the above Mocha-like grep test picker, see test/plugin-browserify-with-grep.js file. In essence, you want add the grep transform to the list of Browserify plugins. Something like
const browserify = require('@cypress/browserify-preprocessor')
// utility function to process source in browserify
const itify = require('cypress-select-tests/src/itify')
// actual picking tests based on environment variables in the config file
const { grepPickTests } = require('cypress-select-tests/src/grep-pick-tests')
module.exports = (on, config) => {
let customBrowserify
// get the browserify options, then push another transform
options.browserifyOptions.transform.push(itify(config, grepPickTests))
customBrowserify = browserify(options)
on('file:preprocessor', file => customBrowserify(file))
}To see additional debugging output run
DEBUG=cypress-select-tests npx cypress open
Author: Gleb Bahmutov <gleb.bahmutov@gmail.com> © 2019
License: MIT - do anything with the code, but don't blame me if it does not work.
Support: if you find any problems with this module, email / tweet / open issue on Github
Copyright (c) 2019 Gleb Bahmutov <gleb.bahmutov@gmail.com>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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