Websites/test-results/public/include/test-results.php

   1 <?php
   2
   3 require_once('db.php');
   4
   5 function float_to_time($time_in_float) {
   6     $time = new DateTime();
   7     $time->setTimestamp(floatval($time_in_float));
   8     return $time;
   9 }
  10
  11 function add_builder($db, $master, $builder_name) {
  12     if (!in_array($master, config('masters')))
  13         return NULL;
  14
  15     return $db->select_or_insert_row('builders', NULL, array('master' => $master, 'name' => $builder_name));
  16 }
  17
  18 function add_build($db, $builder_id, $build_number) {
  19     return $db->select_or_insert_row('builds', NULL, array('builder' => $builder_id, 'number' => $build_number));
  20 }
  21
  22 function add_slave($db, $name) {
  23     return $db->select_or_insert_row('slaves', NULL, array('name' => $name));
  24 }
  25
  26 function fetch_and_parse_test_results_json($url, $jsonp = FALSE) {
  27     $json_contents = file_get_contents($url);
  28     if (!$json_contents)
  29         return NULL;
  30
  31     if ($jsonp)
  32         $json_contents = preg_replace('/^\w+\(|\);$/', '', $json_contents);
  33
  34     return json_decode($json_contents, true);
  35 }
  36
  37 function store_test_results($db, $test_results, $build_id, $start_time, $end_time, $slave_id) {
  38     $db->begin_transaction();
  39
  40     try {
  41         recursively_add_test_results($db, $build_id, $test_results['tests'], '');
  42
  43         $db->query_and_get_affected_rows(
  44             'UPDATE builds SET (start_time, end_time, slave) = (least($1, start_time), greatest($2, end_time), $3) WHERE id = $4',
  45             array($start_time->format('Y-m-d H:i:s.u'), $end_time->format('Y-m-d H:i:s.u'), $slave_id, $build_id));
  46         $db->commit_transaction();
  47     } catch (Exception $e) {
  48         $db->rollback_transaction();
  49         return FALSE;
  50     }
  51
  52     return TRUE;
  53 }
  54
  55 function recursively_add_test_results($db, $build_id, $tests, $full_name) {
  56     if (!array_key_exists('expected', $tests) and !array_key_exists('actual', $tests)) {
  57         $prefix = $full_name ? $full_name . '/' : '';
  58         foreach ($tests as $name => $subtests) {
  59             require_format('test_name', $name, '/^[A-Za-z0-9 +_\-\.]+$/');
  60             recursively_add_test_results($db, $build_id, $subtests, $prefix . $name);
  61         }
  62         return;
  63     }
  64
  65     require_format('expected_result', $tests['expected'], '/^[A-Za-z \+]+$/');
  66     require_format('actual_result', $tests['actual'], '/^[A-Za-z \+]+$/');
  67     require_format('test_time', $tests['time'], '/^\d*$/');
  68     $modifiers = array_get($tests, 'modifiers');
  69     if ($modifiers)
  70         require_format('test_modifiers', $modifiers, '/^[A-Za-z0-9 \.\/]+$/');
  71     else
  72         $modifiers = NULL;
  73     $category = 'LayoutTest'; // FIXME: Support other test categories.
  74
  75     $test_id = $db->select_or_insert_row('tests', NULL,
  76         array('name' => $full_name),
  77         array('name' => $full_name, 'reftest_type' => json_encode(array_get($tests, 'reftest_type')), 'category' => $category));
  78
  79     $db->insert_row('results', NULL, array('test' => $test_id, 'build' => $build_id,
  80         'expected' => $tests['expected'], 'actual' => $tests['actual'],
  81         'time' => $tests['time'], 'modifiers' => $tests['modifiers']));
  82 }
  83
  84 date_default_timezone_set('UTC');
  85 function parse_revisions_array($postgres_array) {
  86     // e.g. {"(WebKit,131456,\"2012-10-16 14:53:00\")","(Safari,162004,)"}
  87     $outer_array = json_decode('[' . trim($postgres_array, '{}') . ']');
  88     $revisions = array();
  89     foreach ($outer_array as $item) {
  90         $name_and_revision = explode(',', trim($item, '()'));
  91         $time = strtotime(trim($name_and_revision[2], '"')) * 1000;
  92         $revisions[trim($name_and_revision[0], '"')] = array(trim($name_and_revision[1], '"'), $time);
  93     }
  94     return $revisions;
  95 }
  96
  97 function format_result($result) {
  98     return array('buildTime' => strtotime($result['start_time']) * 1000,
  99         'revisions' => parse_revisions_array($result['revisions']),
 100         'slave' => $result['slave'],
 101         'buildNumber' => $result['number'],
 102         'actual' => $result['actual'],
 103         'expected' => $result['expected'],
 104         'time' => $result['time'],
 105         'modifiers' => $result['modifiers']);
 106 }
 107
 108 abstract class ResultsJSONWriter {
 109     private $fp;
 110     private $emitted_results;
 111
 112     public function __construct($fp) {
 113         $this->fp = $fp;
 114         $this->emitted_results = FALSE;
 115     }
 116
 117     public function start($builder_id) {
 118         fwrite($this->fp, "{\"status\": \"OK\", \"builders\": {\"$builder_id\":{");
 119     }
 120
 121     public function end($total_time) {
 122         fwrite($this->fp, "}}, \"totalGenerationTime\": $total_time}");
 123     }
 124
 125     public function add_results_for_test_if_matches($current_test, $current_results) {
 126         if (!count($current_results) || $this->pass_for_failure_type($current_results))
 127             return;
 128         // FIXME: Why do we need to check the count?
 129
 130         $prefix = $this->emitted_results ? ",\n" : "";
 131         fwrite($this->fp, "$prefix\"$current_test\":");
 132         fwrite($this->fp, json_encode($current_results, true));
 133
 134         $this->emitted_results = TRUE;
 135     }
 136
 137     abstract protected function pass_for_failure_type(&$results);
 138 }
 139
 140 class FlakyResultsJSONWriter extends ResultsJSONWriter {
 141     public function __construct($fp) { parent::__construct($fp); }
 142     protected function pass_for_failure_type(&$results) {
 143         $last_index = count($results) - 1;
 144         for ($i = 1; $i < $last_index; $i++) {
 145             $previous_actual = $results[$i - 1]['actual'];
 146             $next_actual = $results[$i + 1]['actual'];
 147             if ($previous_actual == $next_actual && $results[$i]['actual'] != $previous_actual) {
 148                 $results[$i]['oneOffChange'] = TRUE;
 149                 return FALSE;
 150             }
 151         }
 152         return TRUE;
 153     }
 154 }
 155
 156 class WrongExpectationsResultsJSONWriter extends ResultsJSONWriter {
 157     public function __construct($fp) { parent::__construct($fp); }
 158     protected function pass_for_failure_type(&$results) {
 159         $latest_expected_result = $results[0]['expected'];
 160         $latest_actual_result = $results[0]['actual'];
 161
 162         if ($latest_expected_result == $latest_actual_result)
 163             return TRUE;
 164
 165         $tokens = explode(' ', $latest_expected_result);
 166         return array_search($latest_actual_result, $tokens) !== FALSE
 167             || (($latest_actual_result == 'TEXT' || $latest_actual_result == 'TEXT+IMAGE') && array_search('FAIL', $tokens) !== FALSE);
 168     }
 169 }
 170
 171 class FailingResultsJSONWriter extends WrongExpectationsResultsJSONWriter {
 172     public function __construct($fp) { parent::__construct($fp); }
 173     protected function pass_for_failure_type(&$results) {
 174         return $results[0]['actual'] == 'PASS' || parent::pass_for_failure_type($results);
 175     }
 176 }
 177
 178 class ResultsJSONGenerator {
 179     private $db;
 180     private $builder_id;
 181
 182     const MAXIMUM_NUMBER_OF_DAYS = 30;
 183
 184     public function __construct($db, $builder_id)
 185     {
 186         $this->db = $db;
 187         $this->builder_id = $builder_id;
 188     }
 189
 190     public function generate()
 191     {
 192         $start_time = microtime(true);
 193
 194         if (!$this->builder_id)
 195             return FALSE;
 196
 197         $number_of_days = self::MAXIMUM_NUMBER_OF_DAYS;
 198         $all_results = $this->db->query(
 199         "SELECT results.*, builds.* FROM results
 200             JOIN (SELECT builds.*, array_agg((build_revisions.repository, build_revisions.value, build_revisions.time)) AS revisions,
 201                     max(build_revisions.time) AS latest_revision_time
 202                     FROM builds, build_revisions
 203                     WHERE build_revisions.build = builds.id AND builds.builder = $1 AND builds.start_time > now() - interval '$number_of_days days'
 204                     GROUP BY builds.id) as builds ON results.build = builds.id
 205             ORDER BY results.test, latest_revision_time DESC", array($this->builder_id));
 206         if (!$all_results)
 207             return FALSE;
 208
 209         $failing_json_fp = $this->open_json_for_failure_type('failing');
 210         try {
 211             $flaky_json_fp = $this->open_json_for_failure_type('flaky');
 212             try {
 213                 $wrongexpectations_json_fp = $this->open_json_for_failure_type('wrongexpectations');
 214                 try {
 215                     return $this->write_jsons($all_results, array(
 216                         new FailingResultsJSONWriter($failing_json_fp),
 217                         new FlakyResultsJSONWriter($flaky_json_fp),
 218                         new WrongExpectationsResultsJSONWriter($wrongexpectations_json_fp)), $start_time);
 219                 } catch (Exception $exception) {
 220                     fclose($wrongexpectations_json_fp);
 221                     throw $exception;
 222                 }
 223             } catch (Exception $exception) {
 224                 fclose($flaky_json_fp);
 225                 throw $exception;
 226             }
 227         } catch (Exception $exception) {
 228             fclose($failing_json_fp);
 229             throw $exception;
 230         }
 231         return FALSE;
 232     }
 233
 234     private function open_json_for_failure_type($failure_type) {
 235         $failing_json_path = configPath('dataDirectory', $this->builder_id . "-$failure_type.json");
 236         if (!$failing_json_path)
 237             exit_with_error('FailedToDetermineResultsJSONPath', array('builderId' => $this->builder_id, 'failureType' => $failure_type));
 238         $fp = fopen($failing_json_path, 'w');
 239         if (!$fp)
 240             exit_with_error('FailedToOpenResultsJSON', array('builderId' => $this->builder_id, 'failureType' => $failure_type));
 241         return $fp;
 242     }
 243
 244     private function write_jsons($all_results, $writers, $start_time) {
 245         foreach ($writers as $writer)
 246             $writer->start($this->builder_id);
 247         $current_test = NULL;
 248         $current_results = array();
 249         while ($result = $this->db->fetch_next_row($all_results)) {
 250             if ($result['test'] != $current_test) {
 251                 if ($current_test) {
 252                     foreach ($writers as $writer)
 253                         $writer->add_results_for_test_if_matches($current_test, $current_results);
 254                 }
 255                 $current_results = array();
 256                 $current_test = $result['test'];
 257             }
 258             array_push($current_results, format_result($result));
 259         }
 260
 261         $total_time = microtime(true) - $start_time;
 262         foreach ($writers as $writer)
 263             $writer->end($total_time);
 264
 265         return TRUE;
 266     }
 267 }
 268
 269 ?>