tests/qunit/suites/resources/mediawiki/mediawiki.storage.test.js

   1 ( function () {
   2         QUnit.module( 'mediawiki.storage' );
   3
   4         QUnit.test( 'set/get(Object) with storage support', function ( assert ) {
   5                 var data = {},
   6                         object = { test: 'value' },
   7                         stub = {
   8                                 setItem: function ( k, v ) {
   9                                         data[ k ] = v;
  10                                         return true;
  11                                 },
  12                                 getItem: function ( k ) {
  13                                         return Object.prototype.hasOwnProperty.call( data, k ) ? data[ k ] : null;
  14                                 },
  15                                 removeItem: function ( k ) {
  16                                         delete data[ k ];
  17                                         return true;
  18                                 }
  19                         };
  20
  21                 this.sandbox.stub( mw.storage, 'store', stub );
  22
  23                 assert.strictEqual( mw.storage.set( 'foo', 'test' ), true, 'set returns true' );
  24                 assert.strictEqual( mw.storage.get( 'foo' ), 'test', 'Check value gets stored' );
  25                 assert.strictEqual( mw.storage.get( 'bar' ), null, 'Unset values are null' );
  26                 assert.strictEqual( mw.storage.remove( 'foo' ), true, 'remove returns true' );
  27                 assert.strictEqual( mw.storage.get( 'foo' ), null, 'Removed item is null' );
  28
  29                 assert.strictEqual( mw.storage.setObject( 'baz', object ), true, 'setObject returns true' );
  30                 assert.deepEqual( mw.storage.getObject( 'baz' ), object, 'Check value gets stored' );
  31                 assert.notStrictEqual( mw.storage.getObject( 'baz' ), object, 'Retrieved value is a new object' );
  32                 assert.strictEqual( mw.storage.getObject( 'quux' ), null, 'Unset values are null' );
  33                 assert.strictEqual( mw.storage.remove( 'baz' ), true, 'remove returns true' );
  34                 assert.strictEqual( mw.storage.getObject( 'baz' ), null, 'Removed item is null' );
  35
  36                 mw.storage.set( 'baz', 'Non-JSON' );
  37                 assert.strictEqual( mw.storage.getObject( 'baz' ), null, 'Non-JSON values are null' );
  38
  39         } );
  40
  41         QUnit.test( 'set/get(Object) with storage methods disabled', function ( assert ) {
  42                 // This covers browsers where storage is disabled
  43                 // (quota full, or security/privacy settings).
  44                 // On most browsers, these interface will be accessible with
  45                 // their methods throwing.
  46                 var stub = {
  47                         getItem: this.sandbox.stub(),
  48                         removeItem: this.sandbox.stub(),
  49                         setItem: this.sandbox.stub()
  50                 };
  51                 stub.getItem.throws();
  52                 stub.setItem.throws();
  53                 stub.removeItem.throws();
  54                 this.sandbox.stub( mw.storage, 'store', stub );
  55
  56                 assert.strictEqual( mw.storage.get( 'foo' ), false );
  57                 assert.strictEqual( mw.storage.set( 'foo', 'test' ), false );
  58                 assert.strictEqual( mw.storage.remove( 'foo' ), false );
  59
  60                 assert.strictEqual( mw.storage.getObject( 'bar' ), false );
  61                 assert.strictEqual( mw.storage.setObject( 'bar', { test: 'value' } ), false );
  62                 assert.strictEqual( mw.storage.remove( 'bar' ), false );
  63         } );
  64
  65         QUnit.test( 'set/get(Object) with storage object disabled', function ( assert ) {
  66                 // On other browsers, these entire object is disabled.
  67                 // `'localStorage' in window` would be true (and pass feature test)
  68                 // but trying to read the object as window.localStorage would throw
  69                 // an exception. Such case would instantiate SafeStorage with
  70                 // undefined after the internal try/catch.
  71                 var old = mw.storage.store;
  72                 mw.storage.store = undefined;
  73
  74                 assert.strictEqual( mw.storage.get( 'foo' ), false );
  75                 assert.strictEqual( mw.storage.set( 'foo', 'test' ), false );
  76                 assert.strictEqual( mw.storage.remove( 'foo', 'test' ), false );
  77
  78                 assert.strictEqual( mw.storage.getObject( 'bar' ), false );
  79                 assert.strictEqual( mw.storage.setObject( 'bar', { test: 'value' } ), false );
  80                 assert.strictEqual( mw.storage.remove( 'bar' ), false );
  81
  82                 mw.storage.store = old;
  83         } );
  84
  85 }() );