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MINOR: test doesn't fail anymore due to time differences between db and php. The test now issues notices, warnings and errors depending on the severity of the offset

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git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/branches/2.4@113933 467b73ca-7a2a-4603-9d3b-597d59a354a9
This commit is contained in:
Andreas Piening 2010-11-18 23:41:35 +00:00 committed by Sam Minnee
parent febcc15c3a
commit 1fb51c6c5d
1 changed files with 22 additions and 2 deletions
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24
tests/model/DbDatetimeTest.php
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@ -1,19 +1,27 @@
<?php
class DbDatetimeTest extends FunctionalTest {
static $fixture_file = 'sapphire/tests/model/DbDatetimeTest.yml';
private static $offset = 0; // number of seconds of php and db time are out of sync
private static $offset_thresholds = array( // throw an error if the offset exceeds 30 minutes
E_USER_ERROR => 1800,
E_USER_WARNING => 60,
E_USER_NOTICE => 5,
);
/**
* Check if dates match more or less. This takes into the account the db query
* can overflow to the next second giving offset readings.
*/
private function matchesRoughly($date1, $date2, $comment = '') {
$allowedDifference = 15; // seconds
$allowedDifference = 5 + abs(self::$offset); // seconds
$time1 = is_numeric($date1) ? $date1 : strtotime($date1);
$time2 = is_numeric($date2) ? $date2 : strtotime($date2);
$this->assertTrue(abs($time1-$time2)<$allowedDifference, $comment . " ($date1, $date2)");
$this->assertTrue(abs($time1-$time2)<$allowedDifference, $comment . " (times differ by " . abs($time1-$time2) . " seconds)");
}
private function getDbNow() {
@ -21,6 +29,18 @@ class DbDatetimeTest extends FunctionalTest {
return DB::query($query)->value();
}
function setUpOnce() {
parent::setUpOnce();
self::$offset = time() - strtotime(DB::query('SELECT ' . DB::getConn()->now())->value());
foreach(self::$offset_thresholds as $code => $offset) {
if(abs(self::$offset) > $offset) {
trigger_error('The time of the databse is out of sync with the webserver by ' . abs(self::$offset) . ' seconds.', $code);
break;
}
}
}
function setUp() {
parent::setUp();
$this->adapter = DB::getConn();