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,
    )));
}