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Differences Between: [Versions 310 and 402] [Versions 311 and 402] [Versions 39 and 402] [Versions 400 and 402]

   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * DML read/read-write database handle tests for mysqli_native_moodle_database
  19   *
  20   * @package    core
  21   * @category   dml
  22   * @copyright  2018 Srdjan Janković, Catalyst IT
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  namespace core;
  27  
  28  use moodle_database;
  29  
  30  defined('MOODLE_INTERNAL') || die();
  31  
  32  require_once (__DIR__.'/fixtures/read_slave_moodle_database_mock_mysqli.php');
  33  
  34  /**
  35   * DML mysqli_native_moodle_database read slave specific tests
  36   *
  37   * @package    core
  38   * @category   dml
  39   * @copyright  2018 Catalyst IT
  40   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  41   * @covers     \mysqli_native_moodle_database
  42   */
  43  class dml_mysqli_read_slave_test extends \base_testcase {
  44      /**
  45       * Test readonly handle is not used for reading from special pg_*() call queries,
  46       * pg_try_advisory_lock and pg_advisory_unlock.
  47       *
  48       * @return void
  49       */
  50      public function test_lock(): void {
  51          $DB = new read_slave_moodle_database_mock_mysqli();
  52  
  53          $this->assertEquals(0, $DB->perf_get_reads_slave());
  54  
  55          $DB->query_start("SELECT GET_LOCK('lock',1)", null, SQL_QUERY_SELECT);
  56          $this->assertTrue($DB->db_handle_is_rw());
  57          $DB->query_end(null);
  58          $this->assertEquals(0, $DB->perf_get_reads_slave());
  59  
  60          $DB->query_start("SELECT RELEASE_LOCK('lock',1)", null, SQL_QUERY_SELECT);
  61          $this->assertTrue($DB->db_handle_is_rw());
  62          $DB->query_end(null);
  63          $this->assertEquals(0, $DB->perf_get_reads_slave());
  64      }
  65  
  66      /**
  67       * Test readonly handle is used for SQL_QUERY_AUX_READONLY queries.
  68       *
  69       * @return void
  70       */
  71      public function test_aux_readonly(): void {
  72          global $DB;
  73  
  74          if ($DB->get_dbfamily() != 'mysql') {
  75              $this->markTestSkipped("Not mysql");
  76          }
  77  
  78          // Open second connection.
  79          $cfg = $DB->export_dbconfig();
  80          if (!isset($cfg->dboptions)) {
  81              $cfg->dboptions = [];
  82          }
  83          $cfg->dboptions['readonly'] = [
  84              'instance' => [$cfg->dbhost]
  85          ];
  86          $cfg->dboptions['dbengine'] = null;
  87          $cfg->dboptions['bulkinsertsize'] = null;
  88  
  89          // Get a separate disposable db connection handle with guaranteed 'readonly' config.
  90          $db2 = moodle_database::get_driver_instance($cfg->dbtype, $cfg->dblibrary);
  91          $db2->connect($cfg->dbhost, $cfg->dbuser, $cfg->dbpass, $cfg->dbname, $cfg->prefix, $cfg->dboptions);
  92  
  93          $reads = $db2->perf_get_reads();
  94          $readsprimary = $reads - $db2->perf_get_reads_slave();
  95  
  96          // Readonly handle queries.
  97  
  98          $db2->setup_is_unicodedb();
  99          $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads());
 100          $this->assertEquals($readsprimary, $reads - $db2->perf_get_reads_slave());
 101  
 102          $db2->get_tables();
 103          $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads());
 104          $this->assertEquals($readsprimary, $reads - $db2->perf_get_reads_slave());
 105  
 106          $db2->get_indexes('course');
 107          $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads());
 108          $this->assertEquals($readsprimary, $reads - $db2->perf_get_reads_slave());
 109  
 110          $db2->get_columns('course');
 111          $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads());
 112          $this->assertEquals($readsprimary, $reads - $db2->perf_get_reads_slave());
 113  
 114          // Readwrite handle queries.
 115  
 116          if (PHP_INT_SIZE !== 4) {
 117              $rc = new \ReflectionClass(\mysqli_native_moodle_database::class);
 118              $rcm = $rc->getMethod('insert_chunk_size');
 119  
 120              $rcm->setAccessible(true);
 121              $rcm->invoke($db2);
 122              $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads());
 123              $this->assertGreaterThan($readsprimary, $readsprimary = $reads - $db2->perf_get_reads_slave());
 124          }
 125  
 126          $db2->get_dbengine();
 127          $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads());
 128          $this->assertGreaterThan($readsprimary, $readsprimary = $reads - $db2->perf_get_reads_slave());
 129  
 130          $db2->diagnose();
 131          $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads());
 132          $this->assertGreaterThan($readsprimary, $readsprimary = $reads - $db2->perf_get_reads_slave());
 133  
 134          $db2->get_row_format('course');
 135          $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads());
 136          $this->assertGreaterThan($readsprimary, $readsprimary = $reads - $db2->perf_get_reads_slave());
 137      }
 138  
 139      /**
 140       * Test readonly connection failure with real mysqli connection
 141       *
 142       * @return void
 143       */
 144      public function test_real_readslave_connect_fail(): void {
 145          global $DB;
 146  
 147          if ($DB->get_dbfamily() != 'mysql') {
 148              $this->markTestSkipped('Not mysql');
 149          }
 150  
 151          // Open second connection.
 152          $cfg = $DB->export_dbconfig();
 153          if (!isset($cfg->dboptions)) {
 154              $cfg->dboptions = [];
 155          }
 156          $cfg->dboptions['readonly'] = [
 157              'instance' => ['host.that.is.not'],
 158              'connecttimeout' => 1
 159          ];
 160  
 161          $db2 = moodle_database::get_driver_instance($cfg->dbtype, $cfg->dblibrary);
 162          $db2->connect($cfg->dbhost, $cfg->dbuser, $cfg->dbpass, $cfg->dbname, $cfg->prefix, $cfg->dboptions);
 163          $this->assertTrue(count($db2->get_records('user')) > 0);
 164      }
 165  }