在Visual Studio Team Services Build中启动Mocha测试

Question

I can't for the life of me find documentation or a tutorial for kicking off mocha unit tests in Visual Studio Online builds.

I have node.js app that is building in VSO and being deployed to Azure. That all works wonderfully. I can't seem to figure out how to kick off the spec files through the build process.

How is this done? Is there documentation available somewhere that I'm missing.

Answer 1

Assume you have setup Mocha tests with your package.json , ie you run tests with npm test . For more information, refer to https://docs.npmjs.com/cli/test .

In your Visual Studio Online build/release:

• Add a "npm" task to install JUnit reporter
  • Run custom command install mocha-junit-reporter
• Add a "npm" task
  • Run custom command test -- --reporter mocha-junit-reporter
  • Tips: You may want to increase timeout by adding --timeout 30000 because the build agent maybe running slower than your dev box
• Then, add a "Publish Test Results" task
  • Set "Test result format" to "JUnit"
  • Check the box on "Continue on error"
  • Under "Control Options" > "Run this task", set it to "Even if a previous task has failed, unless the build was canceled"

Queue a build, you should see Mocha test results in your VSO build.

BONUS! You can also add code coverage to your Mocha run with nyc (formerly known as Istanbul )

On top of the steps above:

• Install Istanbul locally to your package.json
  • Run npm install nyc--save-dev
• Modify your scripts in package.json
  • Update { "scripts": { "test": "nyc --repoter=cobertura mocha" } }
• Modify the "npm test" task
  • Run custom command test -- --reporter mocha-junit-reporter
• Add a "Publish Code Coverage Results" task
  • Set "Code Coverage Tool" to "Cobertura"
  • Set "Summary File" to $(System.DefaultWorkingDirectory)/coverage/cobertura-coverage.xml
  • Set "Report Directory" to $(System.DefaultWorkingDirectory)/coverage/
  • Check the box on "Continue on error"
  • Under "Control Options" > "Run this task", set it to "Even if a previous task has failed, unless the build was canceled"
• Add a new build variable NPM_CONFIG_COVERAGE and set it to true

Now you got both unit tests and code coverage results in your build report.

Answer 2

If you've configured you package.json to be able to run tests, adding a npm step that executes npm run test should do it. If you want to publish the test results you need to make sure that Mocha is writing its results to a format understood by Visual Studio Team Services. JUnit format would be a safe bet. Then follow up with a Publish test Results step that uploads the test results.

You can also use the Visual Studio Test Runner, combined with Chutzpah to run your tests, but I suppose that's going to be a lot of additional work to setup and isn't going to add much.

Answer 3

After quite a bit of fiddling around i got it to work by adding a "Command line task" to my build definition, i used the following parameters:

• Set Tool to node
• Set Arguments to $(Build.SourcesDirectory)\\node_modules\\jasmine-node\\bin\\jasmine-node --verbose test\\

My tests are under a "test" folder, also make sure you have jasmine-node as a dev dependency