Introducing Drupal Test Traits

Mass.gov dev team releases open source project

Zakim Bridge at Night, North End Boston. Photo by David Fox.

Using DTT in a Test

  • Our test cases extend ExistingSiteBase, a convenience class from DTT that imports all the test traits. We will eventually create our own base class and import the traits there.
  • Notice calls to $this->createNode(). This convenience method wraps Drupal’s method of the same name. DTT deletes each created node during tearDown().
  • Note how we call Vocabulary::load(). This is an important point — the full Drupal and Mink APIs are available during a test. The abstraction of Behat is happily removed. Writing test classes more resembles writing module code.

More Features

Misc

  • See the DTT repo for details on how to install and run tests
  • Typically, one does not run tests against a live web site. Tests can fail and leave sites in a “dirty” state so it’s helpful to occasionally refresh to a pristine database.

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