LoggingTest.php in Drupal 8

Namespace

Drupal\KernelTests\Core\Database

File

core/tests/Drupal/KernelTests/Core/Database/LoggingTest.php

<?php

namespace Drupal\KernelTests\Core\Database;

use Drupal\Core\Database\Database;

/**
 * Tests the query logging facility.
 *
 * @group Database
 */
class LoggingTest extends DatabaseTestBase {

  /**
   * Tests that we can log the existence of a query.
   *
   * This test is only marked as legacy to be able to test the deprecated
   * db_query function().
   *
   * @group legacy
   *
   * @expectedDeprecationMessage db_query() is deprecated in drupal:8.0.0. It will be removed before drupal:9.0.0. Instead, get a database connection injected into your service from the container and call query() on it. For example, $injected_database->query($query, $args, $options). See https://www.drupal.org/node/2993033
   */
  public function testEnableLogging() {
    Database::startLog('testing');
    $this->connection
      ->query('SELECT name FROM {test} WHERE age > :age', [
      ':age' => 25,
    ])
      ->fetchCol();
    $this->connection
      ->query('SELECT age FROM {test} WHERE name = :name', [
      ':name' => 'Ringo',
    ])
      ->fetchCol();

    // Trigger a call that does not have file in the backtrace.
    call_user_func_array([
      Database::getConnection(),
      'query',
    ], [
      'SELECT age FROM {test} WHERE name = :name',
      [
        ':name' => 'Ringo',
      ],
    ])
      ->fetchCol();

    // Make sure that the caller is also detected correctly for the deprecated
    // db_query() function.
    db_query('SELECT name FROM {test} WHERE age > :age', [
      ':age' => 25,
    ])
      ->fetchCol();
    $queries = Database::getLog('testing', 'default');
    $this
      ->assertCount(4, $queries, 'Correct number of queries recorded.');
    foreach ($queries as $query) {
      $this
        ->assertEqual($query['caller']['function'], __FUNCTION__, 'Correct function in query log.');
    }
  }

  /**
   * Tests that we can run two logs in parallel.
   */
  public function testEnableMultiLogging() {
    Database::startLog('testing1');
    $this->connection
      ->query('SELECT name FROM {test} WHERE age > :age', [
      ':age' => 25,
    ])
      ->fetchCol();
    Database::startLog('testing2');
    $this->connection
      ->query('SELECT age FROM {test} WHERE name = :name', [
      ':name' => 'Ringo',
    ])
      ->fetchCol();
    $queries1 = Database::getLog('testing1');
    $queries2 = Database::getLog('testing2');
    $this
      ->assertCount(2, $queries1, 'Correct number of queries recorded for log 1.');
    $this
      ->assertCount(1, $queries2, 'Correct number of queries recorded for log 2.');
  }

  /**
   * Tests logging queries against multiple targets on the same connection.
   */
  public function testEnableTargetLogging() {

    // Clone the primary credentials to a replica connection and to another fake
    // connection.
    $connection_info = Database::getConnectionInfo('default');
    Database::addConnectionInfo('default', 'replica', $connection_info['default']);
    Database::startLog('testing1');
    $this->connection
      ->query('SELECT name FROM {test} WHERE age > :age', [
      ':age' => 25,
    ])
      ->fetchCol();
    Database::getConnection('replica')
      ->query('SELECT age FROM {test} WHERE name = :name', [
      ':name' => 'Ringo',
    ])
      ->fetchCol();
    $queries1 = Database::getLog('testing1');
    $this
      ->assertCount(2, $queries1, 'Recorded queries from all targets.');
    $this
      ->assertEqual($queries1[0]['target'], 'default', 'First query used default target.');
    $this
      ->assertEqual($queries1[1]['target'], 'replica', 'Second query used replica target.');
  }

  /**
   * Tests that logs to separate targets use the same connection properly.
   *
   * This test is identical to the one above, except that it doesn't create
   * a fake target so the query should fall back to running on the default
   * target.
   */
  public function testEnableTargetLoggingNoTarget() {
    Database::startLog('testing1');
    $this->connection
      ->query('SELECT name FROM {test} WHERE age > :age', [
      ':age' => 25,
    ])
      ->fetchCol();

    // We use "fake" here as a target because any non-existent target will do.
    // However, because all of the tests in this class share a single page
    // request there is likely to be a target of "replica" from one of the other
    // unit tests, so we use a target here that we know with absolute certainty
    // does not exist.
    Database::getConnection('fake')
      ->query('SELECT age FROM {test} WHERE name = :name', [
      ':name' => 'Ringo',
    ])
      ->fetchCol();
    $queries1 = Database::getLog('testing1');
    $this
      ->assertCount(2, $queries1, 'Recorded queries from all targets.');
    $this
      ->assertEqual($queries1[0]['target'], 'default', 'First query used default target.');
    $this
      ->assertEqual($queries1[1]['target'], 'default', 'Second query used default target as fallback.');
  }

  /**
   * Tests that we can log queries separately on different connections.
   */
  public function testEnableMultiConnectionLogging() {

    // Clone the primary credentials to a fake connection.
    // That both connections point to the same physical database is irrelevant.
    $connection_info = Database::getConnectionInfo('default');
    Database::addConnectionInfo('test2', 'default', $connection_info['default']);
    Database::startLog('testing1');
    Database::startLog('testing1', 'test2');
    $this->connection
      ->query('SELECT name FROM {test} WHERE age > :age', [
      ':age' => 25,
    ])
      ->fetchCol();
    $old_key = Database::setActiveConnection('test2');
    Database::getConnection('replica')
      ->query('SELECT age FROM {test} WHERE name = :name', [
      ':name' => 'Ringo',
    ])
      ->fetchCol();
    Database::setActiveConnection($old_key);
    $queries1 = Database::getLog('testing1');
    $queries2 = Database::getLog('testing1', 'test2');
    $this
      ->assertCount(1, $queries1, 'Correct number of queries recorded for first connection.');
    $this
      ->assertCount(1, $queries2, 'Correct number of queries recorded for second connection.');
  }

  /**
   * Tests that getLog with a wrong key return an empty array.
   */
  public function testGetLoggingWrongKey() {
    $result = Database::getLog('wrong');
    $this
      ->assertEqual($result, [], 'The function getLog with a wrong key returns an empty array.');
  }

}

Classes

Name	Description
LoggingTest	Tests the query logging facility.