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I'm using the Cypress code-coverage and instrument-cra plugins. This works just fine when run locally on my own machine, but when run through CircleCI I get:

CypressError: cy.task('coverageReport') failed with the following error:
> Error: Command failed with ENOENT: nyc report --report-dir ./coverage --temp-dir /root/app/.nyc_output --reporter=lcov --reporter=clover --reporter=json
spawn nyc ENOENT

It's not clear which file it complains about. I've verified that /root/app/.nyc_output exists and contains coverage data.

I've enabled debug logging in Cypress and got:

code-coverage parsed sent coverage +0ms
code-coverage created folder /root/app/.nyc_output for output coverage +1ms
code-coverage wrote coverage file /root/app/.nyc_output/out.json +17ms
cypress:server:plugins:child execute plugin event: task ({ eventId: 2, invocationId: 'inv11' }) +100ms
code-coverage saving coverage report using command: "nyc report --report-dir ./coverage --temp-dir /root/app/.nyc_output --reporter=lcov --reporter=clover --reporter=json" +68ms
code-coverage current working directory is /root/app +0ms

The full run is available at https://circleci.com/gh/magjac/graphviz-visual-editor/114

I've followed this guide to set things up.

This is my CircleCI config.yaml (with lots of horrible debug and a workaround):

# Javascript Node CircleCI 2.0 configuration file
#
# Check https://circleci.com/docs/2.0/language-javascript/ for more details
#
version: 2
jobs:
  integration-test:
    docker:
      - image: cypress/base:8
        environment:
          ## this enables colors in the output
          TERM: xterm
    working_directory: ~/app
    steps:
      - checkout
      - restore_cache:
          keys:
            - v1-deps-{{ .Branch }}-{{ checksum "package.json" }}
            - v1-deps-{{ .Branch }}
            - v1-deps
      - run:
          name: Install Dependencies
          no_output_timeout: 30m
          command: npm ci

      - save_cache:
          key: v1-deps-{{ .Branch }}-{{ checksum "package.json" }}
          # cache NPM modules and the folder with the Cypress binary
          paths:
            - ~/.npm
            - ~/.cache
      - run: ls -la
      - run: ls -la ./node_modules/.bin
      - run: ls -la .nyc_output/out.json || true
      - run: mkdir -p ./coverage
      - run: ls -la -R coverage || true
      - run: make
# This is the line that fails, but we ignore it and let the workaround below do its job
      - run: npm run start:coverage & $(npm bin)/wait-on http://localhost:3000/ && env CYPRESS_DEBUG="code-coverage" DEBUG="code-coverage" $(npm bin)/cypress run --record --key a12725d3-851c-4e67-b432-079b4fb1a875 --spec cypress/integration/rendering.spec.js || true
      - run: find . -name coverage || true
      - run: ls -la -R coverage || true
      - run: ls -la
      - run: ls -la .nyc_output/out.json || true
# Workaround: Run nyc report stand-alone
      - run: ./node_modules/.bin/nyc report --report-dir ./coverage --temp-dir /root/app/.nyc_output --reporter=lcov --reporter=clover --reporter=json
      - run: find . -name .nyc_output || true
      - run: find . -name coverage || true
      - run: ls -la .nyc_output/out.json || true
      - run: ls -la -R coverage || true
      - run: yarn run codecov
workflows:
  version: 2
  build-and-integration-test:
    jobs:
      - integration-test

EDIT: It's the nyc command that is not found. Adding `env PATH="$PATH:./node_modules/.bin" before Cypress invocation solves the problem. Do I really have to use this or is there a better way?

EDIT 2: A better workaround is to use npx cypress run which sets the path to node_modules/.bin automatically. Perhaps this is the real solution?

magjac
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1 Answers1

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Replace $(npm bin)/cypress run with npx cypress run according to my EDIT 2 in the question above.

I cannot tell if this is actually the correct solution or if it's a workaround for something.

magjac
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    I think it's not the solution, i've a similar problem using docker container and i use npx. – Samix Mar 20 '20 at 13:30