当在CircleCI中运行Cypress代码覆盖插件时，nyc报告在ENOENT中失败

Question

我正在使用Cypress 代码覆盖和文书-cra插件。当在我自己的机器上本地运行时，这是很好的，但是当通过CircleCI运行时，我得到：

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

还不清楚它抱怨的是哪一个文件。我已经验证了/root/app/..nyc_output的存在，并包含覆盖率数据。

我在Cypress中启用了调试日志记录，并获得：

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

完整运行可在https://circleci.com/gh/magjac/graphviz-visual-editor/114上使用。

我跟踪了本指南来安排事情。

这是我的CircleCI config.yaml (有很多糟糕的调试和解决方法)：

# 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

编辑：--没有找到的是nyc命令。在Cypress调用之前添加‘`env PATH=’$PATH：./node_modules/..bin“解决了这个问题。我真的要用这个吗?还是有更好的方法？

编辑2:更好的解决方法是使用npx cypress run，它自动设置node_/..bin的路径。也许这才是真正的解决办法？

Answer 1

根据上面问题中的$(npm bin)/cypress run编辑2，用npx cypress run替换。

我不知道这是否真的是正确的解决方案，或者它是否是某种解决办法。