tests/phpunit/includes/exception/MWExceptionHandlerTest.php

   1 <?php
   2 /**
   3  * @author Antoine Musso
   4  * @copyright Copyright © 2013, Antoine Musso
   5  * @copyright Copyright © 2013, Wikimedia Foundation Inc.
   6  * @file
   7  */
   8
   9 class MWExceptionHandlerTest extends MediaWikiTestCase {
  10
  11         /**
  12          * @covers MWExceptionHandler::getRedactedTrace
  13          */
  14         public function testGetRedactedTrace() {
  15                 $refvar = 'value';
  16                 try {
  17                         $array = [ 'a', 'b' ];
  18                         $object = new stdClass();
  19                         self::helperThrowAnException( $array, $object, $refvar );
  20                 } catch ( Exception $e ) {
  21                 }
  22
  23                 # Make sure our stack trace contains an array and an object passed to
  24                 # some function in the stacktrace. Else, we can not assert the trace
  25                 # redaction achieved its job.
  26                 $trace = $e->getTrace();
  27                 $hasObject = false;
  28                 $hasArray = false;
  29                 foreach ( $trace as $frame ) {
  30                         if ( !isset( $frame['args'] ) ) {
  31                                 continue;
  32                         }
  33                         foreach ( $frame['args'] as $arg ) {
  34                                 $hasObject = $hasObject || is_object( $arg );
  35                                 $hasArray = $hasArray || is_array( $arg );
  36                         }
  37
  38                         if ( $hasObject && $hasArray ) {
  39                                 break;
  40                         }
  41                 }
  42                 $this->assertTrue( $hasObject,
  43                         "The stacktrace must have a function having an object has parameter" );
  44                 $this->assertTrue( $hasArray,
  45                         "The stacktrace must have a function having an array has parameter" );
  46
  47                 # Now we redact the trace.. and make sure no function arguments are
  48                 # arrays or objects.
  49                 $redacted = MWExceptionHandler::getRedactedTrace( $e );
  50
  51                 foreach ( $redacted as $frame ) {
  52                         if ( !isset( $frame['args'] ) ) {
  53                                 continue;
  54                         }
  55                         foreach ( $frame['args'] as $arg ) {
  56                                 $this->assertNotInternalType( 'array', $arg );
  57                                 $this->assertNotInternalType( 'object', $arg );
  58                         }
  59                 }
  60
  61                 $this->assertEquals( 'value', $refvar, 'Ensuring reference variable wasn\'t changed' );
  62         }
  63
  64         /**
  65          * Helper function for testExpandArgumentsInCall
  66          *
  67          * Pass it an object and an array, and something by reference :-)
  68          *
  69          * @throws Exception
  70          */
  71         protected static function helperThrowAnException( $a, $b, &$c ) {
  72                 throw new Exception();
  73         }
  74 }