Gemini events

  • CLI - emitted right at start, before cli is parsed. Allows to add new commands and extend help message. The event is emitted with 1 argument parser which is the commander instance used inside gemini itself.

  • INIT - emitted before any job start (test, update or readTests). If handler returns a promise then job will start only after the promise will be resolved. Emitted only once no matter how many times job will be performed.

  • AFTER_TESTS_READ - emitted after all tests were read (during test, update or readTests call). The event is emitted with 1 argument data:

    • data.suiteCollection - suite collection with all suites parsed from test files
  • UPDATE_RESULT — emitted always during update. The event is emitted with 1 argument result:

    • result.imagePath — absolute path to the reference image
    • result.updated — boolean value which is true when reference image have been changed and false when not
  • TEST_RESULT — emitted always after the test is completed. The event is emitted with 1 argument result:

    • result.referencePath — absolute path to the reference image
    • result.currentPath — absolute path to the current image on your disk
    • result.equal — boolean value which is true when images are equal and false when aren't
    • result.saveDiffTo — function is responsible for building diff and present in the result only if images aren't equal
  • INTERRUPT — emitted on signal events SIGHUP, SIGINT or SIGTERM. The event is emitted with 1 argument data:

    • data.exitCode — exit code with which gemini will be interrupted
  • START_BROWSER — emitted on browser session start. Emitted with browser instance. If handler returns a promise tests will be executed in this session only after the promise is resolved.

  • STOP_BROWSER — emitted right before browser session end. Emitted with browser instance. If handler returns a promise quit will be performed only after the promise is resolved.

  • BEGIN — runner event. Emitted on runner start with 1 argument data:

    • data.suiteCollection — suite collection which will be run
    • data.config — gemini config
    • data.totalStates — number of states in collection
    • data.browserIds — all browser ids from config

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