seec/behat-test-runner

Component to help in self testing Behat extension development

8.2.5 2023-08-02 22:54 UTC

README

CI

Behat Test Runner is essentially a Behat context class which provides steps for testing a Behat extension. You can put together a feature file and behat.yml configuration, than the test runner will start a second Behat process to evaluate the created feature file. This a fork of the original test suite which is used in the Magento2 Behat Extension. Differently to the original version, this fork is not supporting outdated PHP versions with the exception of PHP 7.4 and many projects still running on it.

Installation

Install by adding to your composer.json:

composer require --dev seec/behat-test-runner

Configuration

Include the context file in behat.yml like this:

default:
  suites:
    default:
      contexts:
        - SEEC\BehatTestRunner\Context\TestRunnerContext

You can configure the working directory like this (optional):

default:
  suites:
    default:
      contexts:
        - SEEC\BehatTestRunner\Context\TestRunnerContext:
            workingDirectory: path/to/your/working/dir # if not provided then a temporary working dir is autogenerated

Usage

Simply use the necessary steps from the context file to put together your feature.

An example:

Feature: Visiting a page on the website
  In order to demonstrate how to use test runner
  As a developer
  I should open a page and verify the content of it

  Background:
    Given I have the file "index.html" in document root:
            """
            <!DOCTYPE html>
            <html>
              <head>
                  <meta charset="UTF-8">
                  <title>Test page</title>
              </head>
              <body>
                  <h1>Lorem ipsum dolor amet.</h1>
              </body>
            </html>
            """
    And I have a web server running on host "localhost" and port "8080"
    And I have the feature:
            """
            Feature: Test runner demo feature
              Scenario:
                Given I open the index page
                Then I should see the content "Lorem ipsum" on the page in a h1 HTML tag
            """
    And I have the context:
            """
            <?php

            declare(strict_types=1);

            use Behat\Behat\Context\Context;
            use Webmozart\Assert\Assert;

            include '/var/www/html/vendor/autoload.php';

            final class FeatureContext implements Context
            {
                private array $clipboard = [];

                /**
                 * @return mixed
                 */
                private function get(string $key)
                {
                    Assert::keyExists($this->clipboard, $key, sprintf('Key "%s" does not exist in clipboard', $key));

                    return $this->clipboard[$key];
                }

                /**
                 * @var mixed $value
                 */
                private function set(string $key, $value)
                {
                    $this->clipboard[$key] = $value;
                }

                /**
                 * @Given I open the index page
                 */
                function firstStep()
                {
                    $curl = curl_init();
                    curl_setopt($curl, CURLOPT_URL, "http://localhost:8080/");
                    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
                    $response = curl_exec($curl);
                    Assert::notNull($response, 'Response is null: ' . curl_error($curl));
                    $this->set('response', $response);
                    curl_close($curl);
                }

                /**
                 * @Then I should see the content :content on the page in a :tagName HTML tag
                 */
                function secondStep(string $content, string $tagName)
                {
                    $lastResponse = $this->get('response');
                    Assert::notNull($lastResponse, 'Response is null');

                    $pattern = '/<' . $tagName . '.*?>(.*?)<\/' . $tagName . '>/si';
                    preg_match($pattern, $lastResponse, $matches);
                    Assert::notSame(0, count($matches), 'No matches found');
                    Assert::notFalse(strpos($matches[1], $content), 'Content not found in tag');
                }
            }
            """

  Scenario: Visiting the index.html page
    When I run Behat
    Then I should not see a failing test