Script command tips for passing environment variables

Question

I have the following cypress nodeJS script command in package.json:

"scripts": {
"cy:run": "npx cypress run --browser chrome",
"cy:parallel" : "cypress-parallel -s cy:run -t 4 -d cypress/e2e/features/ -m false -a '\"--env ENV=${ENVI}\"' "
}

-a is a dynamic parameter that I want to pass when running the test, such as ENVI=QA or ENVI=LIVE

I tried the following but none of them worked for me:

SET ENVI=QA
npm run cy:parallel

ENVI=QA npm run cy:parallel

$ENVI=QA npm run cy:parallel

Please tell me the correct way of passing parameters from the command line.

Answer 1

One way is to use the CYPRESS_ prefix.

To make things simpler (OS independent), use package cross-env.

Install

npm install --save-dev cross-env

package.json

"scripts": {
  "cy:run": "cross-env CYPRESS_ENVI=QA cypress run",
  ...
}

Test with a simple test:

it('检查cross-env是否已设置CYPRESS_ENVI', () => {
  expect(Cypress.env('ENVI')).to.eq('QA')                // 通过
})

Answer 2

Using the following command worked for me:

Set the value of the environment variable as follows:

$env:ENVI=QA (on Windows)

And change the script command as follows:

Use ENV=%ENVI% instead of ENV=${ENVI}

"cy:parallel" : "cypress-parallel -s cy:run -t 4 -d cypress/e2e/features/ -m false -a '\"--env ENV=%ENVI%\"'"