function DBLogTestCase::verifyCron

Verifies that cron correctly applies the database log row limit.

Parameters

int $row_limit: The row limit.

File

modules/dblog/dblog.test, line 124

Class

DBLogTestCase

Tests logging messages to the database.

Code

private function verifyCron($row_limit) {
  // Generate additional log entries.
  $this->generateLogEntries($row_limit + 10);
  // Verify that the database log row count exceeds the row limit.
  $count = db_query('SELECT COUNT(wid) FROM {watchdog}')->fetchField();
  $this->assertTrue($count > $row_limit, format_string('Dblog row count of @count exceeds row limit of @limit', array(
    '@count' => $count,
    '@limit' => $row_limit,
  )));
  // Get last ID to compare against; log entries get deleted, so we can't
  // reliably add the number of newly created log entries to the current count
  // to measure number of log entries created by cron.
  $last_id = db_query('SELECT MAX(wid) FROM {watchdog}')->fetchField();
  // Run a cron job.
  $this->cronRun();
  // Get last ID after cron was run.
  $current_id = db_query('SELECT MAX(wid) FROM {watchdog}')->fetchField();
  // Only one final "cron is finished" message should be logged.
  $this->assertEqual($current_id - $last_id, 1, format_string('Cron added @count of @expected new log entries', array(
    '@count' => $current_id - $last_id,
    '@expected' => 1,
  )));
  // Test enabling of detailed cron logging.
  // Get the number of enabled modules. Cron adds a log entry for each module.
  $module_count = count(module_implements('cron'));
  variable_set('cron_detailed_logging', 1);
  $last_id = db_query('SELECT MAX(wid) FROM {watchdog}')->fetchField();
  $this->cronRun();
  $current_id = db_query('SELECT MAX(wid) FROM {watchdog}')->fetchField();
  // The number of log entries created.
  $this->assertEqual($current_id - $last_id, $module_count + 2, format_string('Cron added @count of @expected new log entries', array(
    '@count' => $current_id - $last_id,
    '@expected' => $module_count + 2,
  )));
}