Introduction

Each step used in scenario require it's execution to be defined in context class. Execution context class needs to be decorated with @Context(). Take a look at the example below:

guess-the-word.feature

# Attach context to test
@bind(./guess-the-word.ts:GuessTheWordContext)
Feature: Guess the word

  # The second example has three steps
  Scenario: Breaker joins a game
    Given the Maker has started a game with the word "silky"
    When the Breaker joins the Maker's game
    Then the Breaker must guess a word with 5 characters

And That's how could execution context look like for test above:

guess-the-word.ts

import { Context, Given, When, Then } from '@typedtools/behavioral';

@Context()
export class GuessTheWordContext {
  @Given('the Maker has started a game with the word "silky"')
  makerStartsAGame(): void {
    // here's step implementation
  }

  @When('the Breaker joins the Maker\'s game')
  breakerJoinsAGame(): void {
    // here's step implementation
  }

  @Then('the Breaker must guess a word with 5 characters')
  breakerGuessAWord(): void {
    // here's step implementation
  }
}

Attaching step to execution

Behavioral uses method which decorator matches type (name of decorator Given, When or Then) and step sentence passed as first argument.

caution

Exact match policy

Step sentence needs to contain whole sentence not only part of it to be matched.

One execution method can be used for multiple step sentences. To do this place decorator statement for each declared sentence.

@When('the Breaker joins the Maker\'s game')
@When('the Breaker joining a game')
breakerJoinsAGame(): void {}