Travis.ci config and execution of npm scripts - travis-ci

Question

I'm trying to use Travis for an open source build of a PR. The configuration is quite simple and the logs seem to show that the appropriate modules are installed upon running yarn install and I am installing the same version of yarn as that which is used locally. The issue is that when I try to execute the scripts defined in the package.json scripts object the modules are not found when running in Travis. Below is the config and the errors I receive at build time.
before_install:
- curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.7.0
- export PATH="$HOME/.yarn/bin:$PATH"
cache:
yarn: true
directories:
- "node_modules"
env:
- NODE_ENV=production
language: node_js
node_js:
- 8
- 9
- "stable"
install:
- yarn install
script:
- yarn run lint
- yarn test
The above producing the following output in the build logs:
yarn run v1.7.0
$ ./node_modules/.bin/eslint src/**
/bin/sh: 1: ./node_modules/.bin/eslint: not found
error Command failed with exit code 127.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
The command "yarn run lint" exited with 1.
0.54s$ yarn run test
yarn run v1.7.0
$ ./node_modules/.bin/jest
/bin/sh: 1: ./node_modules/.bin/jest: not found
error Command failed with exit code 127.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
The command "yarn run test" exited with 1.
The package.json for this project is as follows:
"scripts": {
"test": "./node_modules/.bin/jest",
"lint": "./node_modules/.bin/eslint src/**",
"precommit": "lint-staged",
"format": "prettier --trailing-comma es5 --single-quote --write 'src/*/*.js' '!(node_modules)/**/*.js'"
},

Answer 1

Was having the same issue and was able to solve it by doing the following in package.json file
"scripts": {
"test": "test --passWithNoTests",
}