[ticket/17176] Take care of MSSQL being slow

PHPBB3-17176

tests/dbal/migrator_test.php

@@ -98,6 +98,7 @@ class phpbb_dbal_migrator_test extends phpbb_database_test_case
 		$this->migrator->set_migrations(array('phpbb_dbal_migration_dummy'));
 
 		// schema
+		$start_time = time();
 		$this->migrator->update();
 		$this->assertFalse($this->migrator->finished());
 
@@ -106,12 +107,13 @@ class phpbb_dbal_migrator_test extends phpbb_database_test_case
 			"SELECT 1 as success
 				FROM phpbb_migrations
 				WHERE migration_name = 'phpbb_dbal_migration_dummy'
-					AND migration_start_time >= " . (time() - 1) . "
+					AND migration_start_time >= " . ($start_time - 1) . "
 					AND migration_start_time <= " . (time() + 1),
 			'Start time set correctly'
 		);
 
 		// data
+		$start_time = time();
 		$this->migrator->update();
 		$this->assertTrue($this->migrator->finished());
 
@@ -127,7 +129,7 @@ class phpbb_dbal_migrator_test extends phpbb_database_test_case
 				FROM phpbb_migrations
 				WHERE migration_name = 'phpbb_dbal_migration_dummy'
 					AND migration_start_time <= migration_end_time
-					AND migration_end_time >= " . (time() - 1) . "
+					AND migration_end_time >= " . ($start_time - 1) . "
 					AND migration_end_time <= " . (time() + 1),
 			'End time set correctly'
 		);