diff core/modules/simpletest/src/Tests/SimpleTestTest.php @ 0:c75dbcec494b

Initial commit from drush-created site

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/simpletest/src/Tests/SimpleTestTest.php	Thu Jul 05 14:24:15 2018 +0000
@@ -0,0 +1,376 @@
+<?php
+
+namespace Drupal\simpletest\Tests;
+
+use Drupal\Component\Utility\Crypt;
+use Drupal\Core\Test\TestDatabase;
+use Drupal\simpletest\WebTestBase;
+
+/**
+ * Tests SimpleTest's web interface: check that the intended tests were run and
+ * ensure that test reports display the intended results. Also test SimpleTest's
+ * internal browser and APIs implicitly.
+ *
+ * @group simpletest
+ */
+class SimpleTestTest extends WebTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = ['simpletest'];
+
+  /**
+   * The results array that has been parsed by getTestResults().
+   *
+   * @var array
+   */
+  protected $childTestResults;
+
+  /**
+   * Stores the test ID from each test run for comparison.
+   *
+   * Used to ensure they are incrementing.
+   */
+  protected $testIds = [];
+
+  /**
+   * Translated fail message.
+   *
+   * @var string
+   */
+  private $failMessage = '';
+
+  /**
+   * Translated pass message.
+   * @var string
+   */
+  private $passMessage = '';
+
+  /**
+   * A valid and recognized permission.
+   *
+   * @var string
+   */
+  protected $validPermission;
+
+  /**
+   * An invalid or unrecognized permission.
+   *
+   * @var string
+   */
+  protected $invalidPermission;
+
+  protected function setUp() {
+    if (!$this->isInChildSite()) {
+      $php = <<<'EOD'
+<?php
+
+# Make sure that the $test_class variable is defined when this file is included.
+if ($test_class) {
+}
+
+# Define a function to be able to check that this file was loaded with
+# function_exists().
+if (!function_exists('simpletest_test_stub_settings_function')) {
+  function simpletest_test_stub_settings_function() {}
+}
+EOD;
+
+      file_put_contents($this->siteDirectory . '/' . 'settings.testing.php', $php);
+      // @see \Drupal\system\Tests\DrupalKernel\DrupalKernelSiteTest
+      $class = __CLASS__;
+      $yaml = <<<EOD
+services:
+  # Add a new service.
+  site.service.yml:
+    class: $class
+  # Swap out a core service.
+  cache.backend.database:
+    class: Drupal\Core\Cache\MemoryBackendFactory
+EOD;
+      file_put_contents($this->siteDirectory . '/testing.services.yml', $yaml);
+
+      $original_container = $this->originalContainer;
+      parent::setUp();
+      $this->assertNotIdentical(\Drupal::getContainer(), $original_container, 'WebTestBase test creates a new container.');
+      // Create and log in an admin user.
+      $this->drupalLogin($this->drupalCreateUser(['administer unit tests']));
+    }
+    else {
+      // This causes three of the five fails that are asserted in
+      // confirmStubResults().
+      self::$modules = ['non_existent_module'];
+      parent::setUp();
+    }
+  }
+
+  /**
+   * Ensures the tests selected through the web interface are run and displayed.
+   */
+  public function testWebTestRunner() {
+    $this->passMessage = t('SimpleTest pass.');
+    $this->failMessage = t('SimpleTest fail.');
+    $this->validPermission = 'access administration pages';
+    $this->invalidPermission = 'invalid permission';
+
+    if ($this->isInChildSite()) {
+      // Only run following code if this test is running itself through a CURL
+      // request.
+      $this->stubTest();
+    }
+    else {
+      // Run twice so test_ids can be accumulated.
+      for ($i = 0; $i < 2; $i++) {
+        // Run this test from web interface.
+        $this->drupalGet('admin/config/development/testing');
+
+        $edit = [];
+        $edit['tests[Drupal\simpletest\Tests\SimpleTestTest]'] = TRUE;
+        $this->drupalPostForm(NULL, $edit, t('Run tests'));
+
+        // Parse results and confirm that they are correct.
+        $this->getTestResults();
+        $this->confirmStubTestResults();
+      }
+
+      // Regression test for #290316.
+      // Check that test_id is incrementing.
+      $this->assertTrue($this->testIds[0] != $this->testIds[1], 'Test ID is incrementing.');
+    }
+  }
+
+  /**
+   * Test to be run and the results confirmed.
+   *
+   * Here we force test results which must match the expected results from
+   * confirmStubResults().
+   */
+  public function stubTest() {
+    // Ensure the .htkey file exists since this is only created just before a
+    // request. This allows the stub test to make requests. The event does not
+    // fire here and drupal_generate_test_ua() can not generate a key for a
+    // test in a test since the prefix has changed.
+    // @see \Drupal\Core\Test\HttpClientMiddleware\TestHttpClientMiddleware::onBeforeSendRequest()
+    // @see drupal_generate_test_ua();
+    $test_db = new TestDatabase($this->databasePrefix);
+    $key_file = DRUPAL_ROOT . '/' . $test_db->getTestSitePath() . '/.htkey';
+    $private_key = Crypt::randomBytesBase64(55);
+    $site_path = $this->container->get('site.path');
+    file_put_contents($key_file, $private_key);
+
+    // Check to see if runtime assertions are indeed on, if successful this
+    // will be the first of sixteen passes asserted in confirmStubResults()
+    try {
+      // Test with minimum possible arguments to make sure no notice for
+      // missing argument is thrown.
+      assert(FALSE);
+      $this->fail('Runtime assertions are not working.');
+    }
+    catch (\AssertionError $e) {
+      try {
+        // Now test with an error message to ensure it is correctly passed
+        // along by the rethrow.
+        assert(FALSE, 'Lorem Ipsum');
+      }
+      catch (\AssertionError $e) {
+        $this->assertEqual($e->getMessage(), 'Lorem Ipsum', 'Runtime assertions Enabled and running.');
+      }
+    }
+    // This causes the second of the sixteen passes asserted in
+    // confirmStubResults().
+    $this->pass($this->passMessage);
+
+    // The first three fails are caused by enabling a non-existent module in
+    // setUp().
+
+    // This causes the fourth of the five fails asserted in
+    // confirmStubResults().
+    $this->fail($this->failMessage);
+
+    // This causes the third to fifth of the sixteen passes asserted in
+    // confirmStubResults().
+    $user = $this->drupalCreateUser([$this->validPermission], 'SimpleTestTest');
+
+    // This causes the fifth of the five fails asserted in confirmStubResults().
+    $this->drupalCreateUser([$this->invalidPermission]);
+
+    // Test logging in as a user.
+    // This causes the sixth to tenth of the sixteen passes asserted in
+    // confirmStubResults().
+    $this->drupalLogin($user);
+
+    // This causes the eleventh of the sixteen passes asserted in
+    // confirmStubResults().
+    $this->pass(t('Test ID is @id.', ['@id' => $this->testId]));
+
+    // These cause the twelfth to fifteenth of the sixteen passes asserted in
+    // confirmStubResults().
+    $this->assertTrue(file_exists($site_path . '/settings.testing.php'));
+    // Check the settings.testing.php file got included.
+    $this->assertTrue(function_exists('simpletest_test_stub_settings_function'));
+    // Check that the test-specific service file got loaded.
+    $this->assertTrue($this->container->has('site.service.yml'));
+    $this->assertIdentical(get_class($this->container->get('cache.backend.database')), 'Drupal\Core\Cache\MemoryBackendFactory');
+
+    // These cause the two exceptions asserted in confirmStubResults().
+    // Call trigger_error() without the required argument to trigger an E_WARNING.
+    trigger_error();
+    // Generates a warning inside a PHP function.
+    array_key_exists(NULL, NULL);
+
+    // This causes the sixteenth of the sixteen passes asserted in
+    // confirmStubResults().
+    $this->assertNothing();
+
+    // This causes the debug message asserted in confirmStubResults().
+    debug('Foo', 'Debug', FALSE);
+  }
+
+  /**
+   * Assert nothing.
+   */
+  public function assertNothing() {
+    $this->pass("This is nothing.");
+  }
+
+  /**
+   * Confirm that the stub test produced the desired results.
+   */
+  public function confirmStubTestResults() {
+    $this->assertAssertion(t('Unable to install modules %modules due to missing modules %missing.', ['%modules' => 'non_existent_module', '%missing' => 'non_existent_module']), 'Other', 'Fail', 'SimpleTestTest.php', 'Drupal\simpletest\Tests\SimpleTestTest->setUp()');
+
+    $this->assertAssertion($this->passMessage, 'Other', 'Pass', 'SimpleTestTest.php', 'Drupal\simpletest\Tests\SimpleTestTest->stubTest()');
+    $this->assertAssertion($this->failMessage, 'Other', 'Fail', 'SimpleTestTest.php', 'Drupal\simpletest\Tests\SimpleTestTest->stubTest()');
+
+    $this->assertAssertion(t('Created permissions: @perms', ['@perms' => $this->validPermission]), 'Role', 'Pass', 'SimpleTestTest.php', 'Drupal\simpletest\Tests\SimpleTestTest->stubTest()');
+    $this->assertAssertion(t('Invalid permission %permission.', ['%permission' => $this->invalidPermission]), 'Role', 'Fail', 'SimpleTestTest.php', 'Drupal\simpletest\Tests\SimpleTestTest->stubTest()');
+
+    // Check that the user was logged in successfully.
+    $this->assertAssertion('User SimpleTestTest successfully logged in.', 'User login', 'Pass', 'SimpleTestTest.php', 'Drupal\simpletest\Tests\SimpleTestTest->stubTest()');
+
+    // Check that a warning is caught by simpletest. The exact error message
+    // differs between PHP versions so only the function name is checked.
+    $this->assertAssertion('trigger_error()', 'Warning', 'Fail', 'SimpleTestTest.php', 'Drupal\simpletest\Tests\SimpleTestTest->stubTest()');
+
+    // Check that the backtracing code works for specific assert function.
+    $this->assertAssertion('This is nothing.', 'Other', 'Pass', 'SimpleTestTest.php', 'Drupal\simpletest\Tests\SimpleTestTest->stubTest()');
+
+    // Check that errors that occur inside PHP internal functions are correctly
+    // reported. The exact error message differs between PHP versions so we
+    // check only the function name 'array_key_exists'.
+    $this->assertAssertion('array_key_exists', 'Warning', 'Fail', 'SimpleTestTest.php', 'Drupal\simpletest\Tests\SimpleTestTest->stubTest()');
+
+    $this->assertAssertion("Debug: 'Foo'", 'Debug', 'Fail', 'SimpleTestTest.php', 'Drupal\simpletest\Tests\SimpleTestTest->stubTest()');
+
+    $this->assertEqual('16 passes, 3 fails, 2 exceptions, 3 debug messages', $this->childTestResults['summary']);
+
+    $this->testIds[] = $test_id = $this->getTestIdFromResults();
+    $this->assertTrue($test_id, 'Found test ID in results.');
+  }
+
+  /**
+   * Fetch the test id from the test results.
+   */
+  public function getTestIdFromResults() {
+    foreach ($this->childTestResults['assertions'] as $assertion) {
+      if (preg_match('@^Test ID is ([0-9]*)\.$@', $assertion['message'], $matches)) {
+        return $matches[1];
+      }
+    }
+    return NULL;
+  }
+
+  /**
+   * Asserts that an assertion with specified values is displayed in results.
+   *
+   * @param string $message
+   *   Assertion message.
+   * @param string $type
+   *   Assertion type.
+   * @param string $status
+   *   Assertion status.
+   * @param string $file
+   *   File where the assertion originated.
+   * @param string $function
+   *   Function where the assertion originated.
+   *
+   * @return Assertion result.
+   */
+  public function assertAssertion($message, $type, $status, $file, $function) {
+    $message = trim(strip_tags($message));
+    $found = FALSE;
+    foreach ($this->childTestResults['assertions'] as $assertion) {
+      if ((strpos($assertion['message'], $message) !== FALSE) &&
+          $assertion['type'] == $type &&
+          $assertion['status'] == $status &&
+          $assertion['file'] == $file &&
+          $assertion['function'] == $function) {
+        $found = TRUE;
+        break;
+      }
+    }
+    return $this->assertTrue($found, format_string('Found assertion {"@message", "@type", "@status", "@file", "@function"}.', ['@message' => $message, '@type' => $type, '@status' => $status, "@file" => $file, "@function" => $function]));
+  }
+
+  /**
+   * Get the results from a test and store them in the class array $results.
+   */
+  public function getTestResults() {
+    $results = [];
+    if ($this->parse()) {
+      if ($details = $this->getResultFieldSet()) {
+        // Code assumes this is the only test in group.
+        $results['summary'] = $this->asText($details->div->div[1]);
+        $results['name'] = $this->asText($details->summary);
+
+        $results['assertions'] = [];
+        $tbody = $details->div->table->tbody;
+        foreach ($tbody->tr as $row) {
+          $assertion = [];
+          $assertion['message'] = $this->asText($row->td[0]);
+          $assertion['type'] = $this->asText($row->td[1]);
+          $assertion['file'] = $this->asText($row->td[2]);
+          $assertion['line'] = $this->asText($row->td[3]);
+          $assertion['function'] = $this->asText($row->td[4]);
+          $ok_url = file_url_transform_relative(file_create_url('core/misc/icons/73b355/check.svg'));
+          $assertion['status'] = ($row->td[5]->img['src'] == $ok_url) ? 'Pass' : 'Fail';
+          $results['assertions'][] = $assertion;
+        }
+      }
+    }
+    $this->childTestResults = $results;
+  }
+
+  /**
+   * Get the details containing the results for group this test is in.
+   */
+  public function getResultFieldSet() {
+    $all_details = $this->xpath('//details');
+    foreach ($all_details as $details) {
+      if ($this->asText($details->summary) == __CLASS__) {
+        return $details;
+      }
+    }
+    return FALSE;
+  }
+
+  /**
+   * Extract the text contained by the element.
+   *
+   * @param $element
+   *   Element to extract text from.
+   *
+   * @return
+   *   Extracted text.
+   */
+  public function asText(\SimpleXMLElement $element) {
+    if (!is_object($element)) {
+      return $this->fail('The element is not an element.');
+    }
+    return trim(html_entity_decode(strip_tags($element->asXML())));
+  }
+
+}