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Scala Gherkin

A simple Scala project. To run:

sbt run

Backus-Naur Form representation of Gherkin

Thanks to Wikipedia for this article.

feature ::= "Feature:" title description? scenario*
scenario ::= "Scenario:" title given? when? then?
given ::= "Given:" step and*
when ::= "When:" step and*
then ::= "Then:" step and*
and ::= "(And|But):" step

description ::= all-chars*
title ::= all-chars*
step ::= all-chars* textString?

Note, 'all-chars' here indicates any line of text (that is all characters except newline).

Some Gherkin keywords are currently not implemented, including:

  • background
  • scenario-outline
  • examples

There is a full list of Gherkin keywords here: https://github.com/cucumber/cucumber/wiki/Feature-Introduction .

The Gherkin github repo has a BNF defined here: https://github.com/cucumber/gherkin/wiki/BNF .