Resolve #3474842 "Cover the module"

tests/src/Functional/CaptchaPackTests.php

+<?php
+
+namespace Drupal\Tests\captcha_pack\Functional;
+
+use Drupal\captcha\Entity\CaptchaPoint;
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests different captcha types.
+ */
+class CaptchaPackTests extends BrowserTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = ['captcha', 'captcha_pack', 'foo_captcha'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $defaultTheme = 'stark';
+
+  /**
+   * Testing the protection of the user log in form.
+   */
+  public function testCaptchaOnLoginForm() {
+    // Create user and test log in without CAPTCHA.
+    $user = $this->drupalCreateUser();
+    $this->drupalLogin($user);
+
+    // Log out again.
+    $this->drupalLogout();
+
+    // Set a CAPTCHA on login form.
+    $this->setCaptcha('user_login_form', 'foo_captcha/Foo CAPTCHA');
+
+    // Go to the login page and check the page response.
+    $this->drupalGet('user/login');
+    $this->assertSession()->statusCodeEquals(200);
+
+    // Check if the page contains the description.
+    $description = \Drupal::config('captcha.settings')->get('description');
+    $this->assertSession()->pageTextContains($description);
+
+    // Try to log in, which should fail.
+    $edit = [
+      'name' => $user->getUsername(),
+      'pass' => $user->pass_raw,
+      'captcha_response' => '?',
+    ];
+    $this->submitForm($edit, 'Log in', 'user-login-form');
+
+    // Check for error message.
+    $this->assertSession()->pageTextContains('The answer you entered for the CAPTCHA was not correct.');
+
+    // Go to the login page and check the page response.
+    $this->drupalGet('user/login');
+    $this->assertSession()->statusCodeEquals(200);
+
+    // Try to log in, which should work.
+    $edit = [
+      'name' => $user->getUsername(),
+      'pass' => $user->pass_raw,
+      'captcha_response' => 'foo',
+    ];
+    $this->submitForm($edit, 'Log in', 'user-login-form');
+
+    $this->assertSession()->pageTextContains($user->getUsername());
+  }
+
+  /**
+   * Helper function to set the captcha type.
+   */
+  public function setCaptcha($form_id, $captcha_type) {
+    /** @var \Drupal\captcha\CaptchaPointInterface $captcha_point */
+    $captcha_point = CaptchaPoint::load($form_id);
+
+    if ($captcha_point) {
+      $captcha_point->setCaptchaType($captcha_type);
+    }
+    else {
+      $captcha_point = new CaptchaPoint([
+        'formId' => $form_id,
+        'captchaType' => $captcha_type,
+      ], 'captcha_point');
+    }
+    $captcha_point->enable();
+
+    $captcha_point->save();
+  }
+
+}