tests/phpunit/includes/libs/DeferredStringifierTest.php

   1 <?php
   2
   3 /**
   4  * @covers DeferredStringifier
   5  */
   6 class DeferredStringifierTest extends PHPUnit_Framework_TestCase {
   7
   8         /**
   9          * @dataProvider provideToString
  10          */
  11         public function testToString( $params, $expected ) {
  12                 $class = new ReflectionClass( 'DeferredStringifier' );
  13                 $ds = $class->newInstanceArgs( $params );
  14                 $this->assertEquals( $expected, (string)$ds );
  15         }
  16
  17         public static function provideToString() {
  18                 return [
  19                         // No args
  20                         [
  21                                 [
  22                                         function () {
  23                                                 return 'foo';
  24                                         }
  25                                 ],
  26                                 'foo'
  27                         ],
  28                         // Has args
  29                         [
  30                                 [
  31                                         function ( $i ) {
  32                                                 return $i;
  33                                         },
  34                                         'bar'
  35                                 ],
  36                                 'bar'
  37                         ],
  38                 ];
  39         }
  40
  41         /**
  42          * Verify that the callback is not called if
  43          * it is never converted to a string
  44          */
  45         public function testCallbackNotCalled() {
  46                 $ds = new DeferredStringifier( function () {
  47                         throw new Exception( 'This should not be reached!' );
  48                 } );
  49                 // No exception was thrown
  50                 $this->assertTrue( true );
  51         }
  52 }