在TypeScript项目中进行BDD测试

Feature: Guess the Word
  # The first example has two steps
  Scenario: Maker starts a game
    When the Maker starts a game
    Then the Maker waits for a Breaker to join
  # 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

# features/bank-account.feature
Feature: Bank Account
  Scenario: Stores money
    Given A bank account with starting balance of $100
    When $100 is deposited
    Then The bank account balance should be $200

const { Given, Then, When} = require( '@cucumber/cucumber');
const { assert } = require( 'chai');
let accountBalance = 0;
Given('A bank account with starting balance of ${int}', function(amount) {
    accountBalance = amount;
});
When('${int} is deposited', function (amount) {
    accountBalance = Number(accountBalance) + Number(amount);
});
Then('The bank account balance should be ${int}', function(expectedAmount) {
    assert.equal(accountBalance, expectedAmount);
});

// cucumber.js
let common = [
    'features*.feature', // Specify our feature files
    '--require step-definitions*.js', // Load step definitions
    '--fORMat progress-bar', // Load custom formatter
].join(' ');
module.exports = {
    default: common
};