class TestRun

class TestRun {
    
    /**
     * The test database prefix.
     *
     * @var string
     */
    protected $databasePrefix;
    
    /**
     * The latest class under test.
     *
     * @var string
     */
    protected $testClass;
    
    /**
     * TestRun constructor.
     *
     * @param \Drupal\Core\Test\TestRunResultsStorageInterface $testRunResultsStorage
     *   The test run results storage.
     * @param int|string $testId
     *   A unique test run id.
     */
    public function __construct(TestRunResultsStorageInterface $testRunResultsStorage, int|string $testId) {
    }
    
    /**
     * Returns a new test run object.
     *
     * @param \Drupal\Core\Test\TestRunResultsStorageInterface $test_run_results_storage
     *   The test run results storage.
     *
     * @return self
     *   The new test run object.
     */
    public static function createNew(TestRunResultsStorageInterface $test_run_results_storage) : TestRun {
        $test_id = $test_run_results_storage->createNew();
        return new static($test_run_results_storage, $test_id);
    }
    
    /**
     * Returns a test run object from storage.
     *
     * @param \Drupal\Core\Test\TestRunResultsStorageInterface $test_run_results_storage
     *   The test run results storage.
     * @param int|string $test_id
     *   The test run id.
     *
     * @return self
     *   The test run object.
     */
    public static function get(TestRunResultsStorageInterface $test_run_results_storage, int|string $test_id) : TestRun {
        return new static($test_run_results_storage, $test_id);
    }
    
    /**
     * Returns the id of the test run object.
     *
     * @return int|string
     *   The id of the test run object.
     */
    public function id() : int|string {
        return $this->testId;
    }
    
    /**
     * Sets the test database prefix.
     *
     * @param string $database_prefix
     *   The database prefix.
     *
     * @throws \RuntimeException
     *   If the database prefix cannot be saved to storage.
     */
    public function setDatabasePrefix(string $database_prefix) : void {
        $this->databasePrefix = $database_prefix;
        $this->testRunResultsStorage
            ->setDatabasePrefix($this, $database_prefix);
    }
    
    /**
     * Gets the test database prefix.
     *
     * @return string
     *   The database prefix.
     */
    public function getDatabasePrefix() : string {
        if (is_null($this->databasePrefix)) {
            $state = $this->testRunResultsStorage
                ->getCurrentTestRunState($this);
            $this->databasePrefix = $state['db_prefix'];
            $this->testClass = $state['test_class'];
        }
        return $this->databasePrefix;
    }
    
    /**
     * Gets the latest class under test.
     *
     * @return string
     *   The test class.
     */
    public function getTestClass() : string {
        if (is_null($this->testClass)) {
            $state = $this->testRunResultsStorage
                ->getCurrentTestRunState($this);
            $this->databasePrefix = $state['db_prefix'];
            $this->testClass = $state['test_class'];
        }
        return $this->testClass;
    }
    
    /**
     * Adds a test log entry.
     *
     * @param array $entry
     *   The array of the log entry elements.
     *
     * @return bool
     *   TRUE if the addition was successful, FALSE otherwise.
     */
    public function insertLogEntry(array $entry) : bool {
        $this->testClass = $entry['test_class'];
        return $this->testRunResultsStorage
            ->insertLogEntry($this, $entry);
    }
    
    /**
     * Get test results for a test run, ordered by test class.
     *
     * @return array
     *   Array of results ordered by test class and message id.
     */
    public function getLogEntriesByTestClass() : array {
        return $this->testRunResultsStorage
            ->getLogEntriesByTestClass($this);
    }
    
    /**
     * Removes the test results from the storage.
     *
     * @return int
     *   The number of log entries that were removed from storage.
     */
    public function removeResults() : int {
        return $this->testRunResultsStorage
            ->removeResults($this);
    }
    
    /**
     * Reads the PHP error log and reports any errors as assertion failures.
     *
     * The errors in the log should only be fatal errors since any other errors
     * will have been recorded by the error handler.
     *
     * @param string $error_log_path
     *   The path of log file.
     * @param string $test_class
     *   The test class to which the log relates.
     *
     * @return bool
     *   Whether any fatal errors were found.
     */
    public function processPhpErrorLogFile(string $error_log_path, string $test_class) : bool {
        $found = FALSE;
        if (file_exists($error_log_path)) {
            foreach (file($error_log_path) as $line) {
                if (preg_match('/\\[.*?\\] (.*?): (.*?) in (.*) on line (\\d+)/', $line, $match)) {
                    // Parse PHP fatal errors for example: PHP Fatal error: Call to
                    // undefined function break_me() in /path/to/file.php on line 17
                    $this->insertLogEntry([
                        'test_class' => $test_class,
                        'status' => 'fail',
                        'message' => $match[2],
                        'message_group' => $match[1],
                        'line' => $match[4],
                        'file' => $match[3],
                    ]);
                }
                else {
                    // Unknown format, place the entire message in the log.
                    $this->insertLogEntry([
                        'test_class' => $test_class,
                        'status' => 'fail',
                        'message' => $line,
                        'message_group' => 'Fatal error',
                    ]);
                }
                $found = TRUE;
            }
        }
        return $found;
    }

}