Testing Multiple Versions of Node

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5

If you’re prepared to test in parallel as suggested by Lev above you can get better isolation by adding the following to circle.yml:

dependencies:
  pre:
    - case $CIRCLE_NODE_INDEX in 0) NODE_VERSION=4 ;; 1) NODE_VERSION=5 ;; 2) NODE_VERSION=6 ;; esac; nvm install $NODE_VERSION && nvm alias default $NODE_VERSION

test:
  override:
    - ./<your-test-command>

This example assumes that parallelism is set to 3x.