interface TestRunResultsStorageInterface

interface TestRunResultsStorageInterface {
    
    /**
     * Gets a new unique identifier for a test run.
     *
     * @return int|string
     *   A unique identifier.
     */
    public function createNew() : int|string;
    
    /**
     * Sets the test database prefix of a test run in storage.
     *
     * @param \Drupal\Core\Test\TestRun $test_run
     *   The test run object.
     * @param string $database_prefix
     *   The database prefix.
     *
     * @throws \RuntimeException
     *   If the operation failed.
     */
    public function setDatabasePrefix(TestRun $test_run, string $database_prefix) : void;
    
    /**
     * Adds a test log entry for a test run to the storage.
     *
     * @param \Drupal\Core\Test\TestRun $test_run
     *   The test run object.
     * @param array $entry
     *   The array of the log entry elements.
     *
     * @return bool
     *   TRUE if the addition was successful, FALSE otherwise.
     */
    public function insertLogEntry(TestRun $test_run, array $entry) : bool;
    
    /**
     * Removes the results of a test run from the storage.
     *
     * @param \Drupal\Core\Test\TestRun $test_run
     *   The test run object.
     *
     * @return int
     *   The number of log entries that were removed from storage.
     */
    public function removeResults(TestRun $test_run) : int;
    
    /**
     * Get test results for a test run, ordered by test class.
     *
     * @param \Drupal\Core\Test\TestRun $test_run
     *   The test run object.
     *
     * @return array
     *   Array of results ordered by test class and message id.
     */
    public function getLogEntriesByTestClass(TestRun $test_run) : array;
    
    /**
     * Get state information about a test run, from storage.
     *
     * @param \Drupal\Core\Test\TestRun $test_run
     *   The test run object.
     *
     * @return array
     *   Array of state information, for example 'last_prefix' and 'test_class'.
     */
    public function getCurrentTestRunState(TestRun $test_run) : array;
    
    /**
     * Prepares the test run storage.
     *
     * @param bool $keep_results
     *   If TRUE, any pre-existing storage will be preserved; if FALSE,
     *   pre-existing storage will be cleaned up.
     */
    public function buildTestingResultsEnvironment(bool $keep_results) : void;
    
    /**
     * Checks if the test run storage is valid.
     *
     * @return bool
     *   TRUE when the storage is valid and ready for use, FALSE otherwise.
     *
     * @see ::buildTestingResultsEnvironment()
     */
    public function validateTestingResultsEnvironment() : bool;
    
    /**
     * Resets the test run storage.
     *
     * @return int
     *   The number of log entries that were removed from storage.
     */
    public function cleanUp() : int;

}