tests/phpunit/includes/libs/DeferredStringifierTest.php

   1 <?php
   2
   3 class DeferredStringifierTest extends PHPUnit_Framework_TestCase {
   4
   5         /**
   6          * @covers DeferredStringifier
   7          * @dataProvider provideToString
   8          */
   9         public function testToString( $params, $expected ) {
  10                 $class = new ReflectionClass( 'DeferredStringifier' );
  11                 $ds = $class->newInstanceArgs( $params );
  12                 $this->assertEquals( $expected, (string)$ds );
  13         }
  14
  15         public static function provideToString() {
  16                 return [
  17                         // No args
  18                         [
  19                                 [
  20                                         function () {
  21                                                 return 'foo';
  22                                         }
  23                                 ],
  24                                 'foo'
  25                         ],
  26                         // Has args
  27                         [
  28                                 [
  29                                         function ( $i ) {
  30                                                 return $i;
  31                                         },
  32                                         'bar'
  33                                 ],
  34                                 'bar'
  35                         ],
  36                 ];
  37         }
  38
  39         /**
  40          * Verify that the callback is not called if
  41          * it is never converted to a string
  42          */
  43         public function testCallbackNotCalled() {
  44                 $ds = new DeferredStringifier( function () {
  45                         throw new Exception( 'This should not be reached!' );
  46                 } );
  47                 // No exception was thrown
  48                 $this->assertTrue( true );
  49         }
  50 }