localforage - npm Package Compare versions

Comparing version 0.9.1 to 0.9.2

bower.json

 {
   "name": "localforage",
-  "version": "0.9.1",
+  "version": "0.9.2",
   "main": [
@@ -5,0 +5,0 @@ "dist/localforage.min.js"

CHANGELOG.md

@@ -6,4 +6,8 @@ # About this CHANGELOG
 
-### [Next Version](https://github.com/mozilla/localForage/)
+### Next Version
 
+* `setDriver` now accepts an array of drivers to be used, in order of preference, instead of simply a string. The string option is still supported. (eg. now one can use `setDriver(['WebSQL', 'localStorage'])` instead of `setDriver('WebSQL')`)
+
+### [0.9](https://github.com/mozilla/localForage/releases/tag/0.9.1)
+
 This release drops support for some legacy browsers, though not actually the
@@ -18,4 +22,6 @@ ones you might think. localForage's new policy is to support the current
 * Switch to Mocha tests and test on [Sauce Labs](https://saucelabs.com/).
+* Add a `keys()` method. ([#180](https://github.com/mozilla/localForage/pull/180))
+* Check for localStorage instead of assuming it's available. ([#183](https://github.com/mozilla/localForage/pull/183))
 
-### [Version 0.8.0](https://github.com/mozilla/localForage/releases/tag/0.8.0)
+### [Version 0.8](https://github.com/mozilla/localForage/releases/tag/0.8.1)
 
@@ -35,7 +41,7 @@ * Add support for web workers. ([#144](https://github.com/mozilla/localForage/pull/144), [#147](https://github.com/mozilla/localForage/pull/147)).
 
-### [Version 0.4.0](https://github.com/mozilla/localForage/releases/tag/0.4.0)
+### [Version 0.4](https://github.com/mozilla/localForage/releases/tag/0.4.0)
 
 * Built versions of localForage are now in the top-level directory. ([2d11c90](https://github.com/mozilla/localForage/commit/2d11c90))
 
-### [Version 0.3.0](https://github.com/mozilla/localForage/releases/tag/0.3.0)
+### [Version 0.3](https://github.com/mozilla/localForage/releases/tag/0.3.0)
 
@@ -42,0 +48,0 @@ * Check code quality in test suite ([#124](https://github.com/mozilla/localForage/pull/124))

component.json

 {
   "name": "localforage",
-  "version": "0.9.1",
+  "version": "0.9.2",
   "dependencies": {
-    "then/promise": "4.0.0"
+    "then/promise": "5.0.0"
   },
@@ -7,0 +7,0 @@ "scripts": [

dist/localforage.min.js

@@ -1,1 +0,1 @@
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LIMIT 1",[a],function(a,c){var e=c.rows.length?c.rows.item(0).value:null;e&&(e=j(e)),b&&b(e),d(e)},function(a,c){b&&b(null,c),e(c)})})},e)})}function c(a,b,c){var d=this;return new m(function(e,f){d.ready().then(function(){void 0===b&&(b=null);var d=b;k(b,function(b,g){g?f(g):o.transaction(function(g){g.executeSql("INSERT OR REPLACE INTO "+p.storeName+" (key, value) VALUES (?, ?)",[a,b],function(){c&&c(d),e(d)},function(a,b){c&&c(null,b),f(b)})},function(a){a.code===a.QUOTA_ERR&&(c&&c(null,a),f(a))})})},f)})}function d(a,b){var c=this;return new m(function(d,e){c.ready().then(function(){o.transaction(function(c){c.executeSql("DELETE FROM "+p.storeName+" WHERE key = ?",[a],function(){b&&b(),d()},function(a,c){b&&b(c),e(c)})})},e)})}function e(a){var b=this;return new m(function(c,d){b.ready().then(function(){o.transaction(function(b){b.executeSql("DELETE FROM "+p.storeName,[],function(){a&&a(),c()},function(b,c){a&&a(c),d(c)})})},d)})}function f(a){var b=this;return new m(function(c,d){b.ready().then(function(){o.transaction(function(b){b.executeSql("SELECT COUNT(key) as c FROM "+p.storeName,[],function(b,d){var e=d.rows.item(0).c;a&&a(e),c(e)},function(b,c){a&&a(null,c),d(c)})})},d)})}function g(a,b){var c=this;return new m(function(d,e){c.ready().then(function(){o.transaction(function(c){c.executeSql("SELECT key FROM "+p.storeName+" WHERE id = ? LIMIT 1",[a+1],function(a,c){var e=c.rows.length?c.rows.item(0).key:null;b&&b(e),d(e)},function(a,c){b&&b(null,c),e(c)})})},e)})}function h(a){var b=this;return new m(function(c,d){b.ready().then(function(){o.transaction(function(b){b.executeSql("SELECT key FROM "+p.storeName,[],function(b,d){for(var e=d.rows.length,f=[],g=0;e>g;g++)f.push(d.rows.item(g).key);a&&a(f),c(f)},function(b,c){a&&a(null,c),d(c)})})},d)})}function i(a){var b,c=new Uint8Array(a),d="";for(b=0;b<c.length;b+=3)d+=l[c[b]>>2],d+=l[(3&c[b])<<4|c[b+1]>>4],d+=l[(15&c[b+1])<<2|c[b+2]>>6],d+=l[63&c[b+2]];return c.length%3===2?d=d.substring(0,d.length-1)+"=":c.length%3===1&&(d=d.substring(0,d.length-2)+"=="),d}function j(a){if(a.substring(0,r)!==q)return JSON.parse(a);var b,c,d,e,f,g=a.substring(D),h=a.substring(r,D),i=.75*g.length,j=g.length,k=0;"="===g[g.length-1]&&(i--,"="===g[g.length-2]&&i--);var m=new ArrayBuffer(i),n=new Uint8Array(m);for(b=0;j>b;b+=4)c=l.indexOf(g[b]),d=l.indexOf(g[b+1]),e=l.indexOf(g[b+2]),f=l.indexOf(g[b+3]),n[k++]=c<<2|d>>4,n[k++]=(15&d)<<4|e>>2,n[k++]=(3&e)<<6|63&f;switch(h){case s:return m;case t:return new Blob([m]);case u:return new Int8Array(m);case v:return new Uint8Array(m);case w:return new Uint8ClampedArray(m);case x:return new Int16Array(m);case z:return new Uint16Array(m);case y:return new Int32Array(m);case A:return new Uint32Array(m);case B:return new Float32Array(m);case C:return new Float64Array(m);default:throw new Error("Unkown type: "+h)}}function k(a,b){var c="";if(a&&(c=a.toString()),a&&("[object ArrayBuffer]"===a.toString()||a.buffer&&"[object ArrayBuffer]"===a.buffer.toString())){var d,e=q;a instanceof ArrayBuffer?(d=a,e+=s):(d=a.buffer,"[object Int8Array]"===c?e+=u:"[object Uint8Array]"===c?e+=v:"[object Uint8ClampedArray]"===c?e+=w:"[object Int16Array]"===c?e+=x:"[object Uint16Array]"===c?e+=z:"[object Int32Array]"===c?e+=y:"[object Uint32Array]"===c?e+=A:"[object Float32Array]"===c?e+=B:"[object Float64Array]"===c?e+=C:b(new Error("Failed to get type for BinaryArray"))),b(e+i(d))}else if("[object Blob]"===c){var f=new FileReader;f.onload=function(){var a=i(this.result);b(q+t+a)},f.readAsArrayBuffer(a)}else try{b(JSON.stringify(a))}catch(g){this.console&&this.console.error&&this.console.error("Couldn't convert value into a JSON string: ",a),b(null,g)}}var l="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",m="undefined"!=typeof module&&module.exports?require("promise"):this.Promise,n=this.openDatabase,o=null,p={},q="__lfsc__:",r=q.length,s="arbf",t="blob",u="si08",v="ui08",w="uic8",x="si16",y="si32",z="ur16",A="ui32",B="fl32",C="fl64",D=r+s.length;if(n){var E={_driver:"webSQLStorage",_initStorage:a,getItem:b,setItem:c,removeItem:d,clear:e,length:f,key:g,keys:h};"function"==typeof define&&define.amd?define("webSQLStorage",function(){return E}):"undefined"!=typeof module&&module.exports?module.exports=E:this.webSQLStorage=E}}.call(this),function(){"use strict";var a="undefined"!=typeof module&&module.exports?require("promise"):this.Promise,b=1,c=2,d=3,e=d;"function"==typeof define&&define.amd?e=b:"undefined"!=typeof module&&module.exports&&(e=c);var f=this,g={INDEXEDDB:"asyncStorage",LOCALSTORAGE:"localStorageWrapper",WEBSQL:"webSQLStorage",_config:{description:"",name:"localforage",size:4980736,storeName:"keyvaluepairs",version:1},config:function(a){if("object"==typeof a){if(this._ready)return new Error("Can't call config() after localforage has been used.");for(var b in a)this._config[b]=a[b];return!0}return"string"==typeof a?this._config[a]:this._config},driver:function(){return this._driver||null},_ready:!1,_driverSet:null,setDriver:function(d,g,h){var i=this,j=Array.isArray||function(a){return"[object Array]"===Object.prototype.toString.call(a)};return j(d)||"string"!=typeof d||(d=[d]),this._driverSet=new a(function(j,k){var l=i._getFirstSupportedDriver(d);if(!l){var m=new Error("No available storage method found.");return i._driverSet=a.reject(m),h&&h(m),void k(m)}if(i._ready=null,e===b)return void require([l],function(a){i._extend(a),g&&g(),j()});if(e===c){var n;switch(l){case i.INDEXEDDB:n=require("./drivers/indexeddb");break;case i.LOCALSTORAGE:n=require("./drivers/localstorage");break;case i.WEBSQL:n=require("./drivers/websql")}i._extend(n)}else i._extend(f[l]);g&&g(),j()}),this._driverSet},_getFirstSupportedDriver:function(a){if(a)for(var b=0;b<a.length;b++){var c=a[b];if(this.supports(c))return c}return null},supports:function(a){return!!h[a]},ready:function(b){var c=new a(function(a,b){g._driverSet.then(function(){null===g._ready&&(g._ready=g._initStorage(g._config)),g._ready.then(a,b)},b)});return c.then(b,b),c},_extend:function(a){for(var b in a)a.hasOwnProperty(b)&&(this[b]=a[b])}},h=function(a){var b=b||a.indexedDB||a.webkitIndexedDB||a.mozIndexedDB||a.OIndexedDB||a.msIndexedDB,c={};return c[g.WEBSQL]=!!a.openDatabase,c[g.INDEXEDDB]=!(!b||"function"!=typeof b.open||null!==b.open("_localforage_spec_test",1).onupgradeneeded),c[g.LOCALSTORAGE]=!!function(){try{return localStorage&&"function"==typeof localStorage.setItem}catch(a){return!1}}(),c}(this),i=[g.INDEXEDDB,g.WEBSQL,g.LOCALSTORAGE];g.setDriver(i),e===b?define(function(){return g}):e===c?module.exports=g:this.localforage=g}.call(this);

dist/localforage.nopromises.js

 /*!
     localForage -- Offline Storage, Improved
-    Version 0.9.1
+    Version 0.9.2
     http://mozilla.github.io/localForage
@@ -82,5 +82,3 @@ (c) 2013-2014 Mozilla, Apache License 2.0
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -127,5 +125,3 @@ }
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -141,10 +137,8 @@ }
 
-                // We use `['delete']` instead of `.delete` because IE 8 will
-                // throw a fit if it sees the reserved word "delete" in this
-                // scenario.
-                // See: https://github.com/mozilla/localForage/pull/67
-                //
-                // This can be removed once we no longer care about IE 8, for
-                // what that's worth.
-                var req = store['delete'](key);
+                // We use a Grunt task to make this safe for IE and some
+                // versions of Android (including those used by Cordova).
+                // Normally IE won't like `.delete()` and will insist on
+                // using `['delete']()`, but we have a build step that
+                // fixes this for us now.
+                var req = store["delete"](key);
                 req.onsuccess = function() {
@@ -178,5 +172,3 @@
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -206,5 +198,3 @@ }
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -236,5 +226,3 @@ }
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -307,5 +295,3 @@ }
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -338,3 +324,3 @@ }
                     keys.push(cursor.key);
-                    cursor.continue();
+                    cursor["continue"]();
                 };
@@ -349,5 +335,3 @@
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -458,3 +442,3 @@ }
         var _this = this;
-        return new Promise(function(resolve) {
+        return new Promise(function(resolve, reject) {
             _this.ready().then(function() {
@@ -468,3 +452,3 @@ localStorage.clear();
                 resolve();
-            });
+            }, reject);
         });
@@ -503,3 +487,3 @@ }
                 }
-            });
+            }, reject);
         });
@@ -511,3 +495,3 @@ }
         var _this = this;
-        return new Promise(function(resolve) {
+        return new Promise(function(resolve, reject) {
             _this.ready().then(function() {
@@ -530,3 +514,3 @@ var result;
                 resolve(result);
-            });
+            }, reject);
         });
@@ -537,3 +521,3 @@ }
         var _this = this;
-        return new Promise(function(resolve) {
+        return new Promise(function(resolve, reject) {
             _this.ready().then(function() {
@@ -552,3 +536,3 @@ var length = localStorage.length;
                 resolve(keys);
-            });
+            }, reject);
         });
@@ -560,3 +544,3 @@ }
         var _this = this;
-        return new Promise(function(resolve) {
+        return new Promise(function(resolve, reject) {
             _this.ready().then(function() {
@@ -570,3 +554,3 @@ var result = localStorage.length;
                 resolve(result);
-            });
+            }, reject);
         });
@@ -578,3 +562,3 @@ }
         var _this = this;
-        return new Promise(function(resolve) {
+        return new Promise(function(resolve, reject) {
             _this.ready().then(function() {
@@ -588,3 +572,3 @@ localStorage.removeItem(keyPrefix + key);
                 resolve();
-            });
+            }, reject);
         });
@@ -795,3 +779,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -881,3 +865,3 @@ }
 
-        return new Promise(function(resolve) {
+        return new Promise(function(resolve, reject) {
             // Open the database; the openDatabase API will automatically
@@ -889,3 +873,3 @@ // create it for us if it doesn't exist.
             } catch (e) {
-                return _this.setDriver('localStorageWrapper').then(resolve);
+                return _this.setDriver('localStorageWrapper').then(resolve, reject);
             }
@@ -898,3 +882,5 @@
                     resolve();
-                }, null);
+                }, function(t, error) {
+                    reject(error);
+                });
             });
@@ -932,3 +918,3 @@ });
                 });
-            });
+            }, reject);
         });
@@ -989,3 +975,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -1014,3 +1000,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -1040,3 +1026,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -1070,3 +1056,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -1104,3 +1090,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -1136,3 +1122,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -1367,24 +1353,2 @@ }
 
-    // Initialize IndexedDB; fall back to vendor-prefixed versions if needed.
-    var indexedDB = indexedDB || this.indexedDB || this.webkitIndexedDB ||
-                    this.mozIndexedDB || this.OIndexedDB ||
-                    this.msIndexedDB;
-
-    var supportsIndexedDB = indexedDB &&
-                            typeof indexedDB.open === 'function' &&
-                            indexedDB.open('_localforage_spec_test', 1)
-                                     .onupgradeneeded === null;
-
-    // Check for WebSQL.
-    var openDatabase = this.openDatabase;
-
-    // Check for localStorage.
-    var supportsLocalStorage = (function() {
-        try {
-            return localStorage && typeof localStorage.setItem === 'function';
-        } catch (e) {
-            return false;
-        }
-    })();
-
     // The actual localForage object that we expose as a module or via a
@@ -1444,17 +1408,25 @@ // global. It's extended by pulling in one of our other libraries.
 
-        setDriver: function(driverName, callback, errorCallback) {
+        setDriver: function(drivers, callback, errorCallback) {
             var self = this;
 
+            var isArray = Array.isArray || function(arg) {
+                return Object.prototype.toString.call(arg) === '[object Array]';
+            };
+
+            if (!isArray(drivers) && typeof drivers === 'string') {
+                drivers = [drivers];
+            }
+
             this._driverSet = new Promise(function(resolve, reject) {
-                if ((!supportsIndexedDB &&
-                     driverName === localForage.INDEXEDDB) ||
-                    (!openDatabase && driverName === localForage.WEBSQL) ||
-                    (!supportsLocalStorage &&
-                     driverName === localForage.LOCALSTORAGE)) {
+                var driverName = self._getFirstSupportedDriver(drivers);
 
+                if (!driverName) {
+                    var error = new Error('No available storage method found.');
+                    self._driverSet = Promise.reject(error);
+
                     if (errorCallback) {
-                        errorCallback();
+                        errorCallback(error);
                     }
 
-                    reject(localForage);
+                    reject(error);
 
@@ -1508,4 +1480,22 @@ return;
 
+        _getFirstSupportedDriver: function(drivers) {
+            if (drivers) {
+                for (var i = 0; i < drivers.length; i++) {
+                    var driver = drivers[i];
+
+                    if (this.supports(driver)) {
+                        return driver;
+                    }
+                }
+            }
+
+            return null;
+        },
+
+        supports: function(driverName) {
+            return !!driverSupport[driverName];
+        },
+
         ready: function(callback) {
-            var ready = new Promise(function(resolve) {
+            var ready = new Promise(function(resolve, reject) {
                 localForage._driverSet.then(function() {
@@ -1517,4 +1507,4 @@ if (localForage._ready === null) {
 
-                    localForage._ready.then(resolve);
-                });
+                    localForage._ready.then(resolve, reject);
+                }, reject);
             });
@@ -1536,4 +1526,2 @@
 
-    // Select our storage library.
-    var storageLibrary;
     // Check to see if IndexedDB is available and if it is the latest
@@ -1544,24 +1532,39 @@ // implementation; it's our preferred backend library. We use "_spec_test"
     // See: https://github.com/mozilla/localForage/issues/128
-    if (supportsIndexedDB) {
-        storageLibrary = localForage.INDEXEDDB;
-    } else if (openDatabase) { // WebSQL is available, so we'll use that.
-        storageLibrary = localForage.WEBSQL;
-    } else if (supportsLocalStorage) { // If nothing else is available,
-                                       // we try to use localStorage.
-        storageLibrary = localForage.LOCALSTORAGE;
-    }
+    var driverSupport = (function(_this) {
+        // Initialize IndexedDB; fall back to vendor-prefixed versions
+        // if needed.
+        var indexedDB = indexedDB || _this.indexedDB || _this.webkitIndexedDB ||
+                        _this.mozIndexedDB || _this.OIndexedDB ||
+                        _this.msIndexedDB;
 
-    // If window.localForageConfig is set, use it for configuration.
-    if (this.localForageConfig) {
-        localForage.config = this.localForageConfig;
-    }
+        var result = {};
 
-    // Set the (default) driver, or report the error.
-    if (storageLibrary) {
-        localForage.setDriver(storageLibrary);
-    } else {
-        localForage._ready = Promise.reject(
-            new Error('No available storage method found.'));
-    }
+        result[localForage.WEBSQL] = !!_this.openDatabase;
+        result[localForage.INDEXEDDB] = !!(
+            indexedDB &&
+            typeof indexedDB.open === 'function' &&
+            indexedDB.open('_localforage_spec_test', 1)
+                     .onupgradeneeded === null
+        );
 
+        result[localForage.LOCALSTORAGE] = !!(function() {
+            try {
+                return (localStorage &&
+                        typeof localStorage.setItem === 'function');
+            } catch (e) {
+                return false;
+            }
+        })();
+
+        return result;
+    })(this);
+
+    var driverTestOrder = [
+        localForage.INDEXEDDB,
+        localForage.WEBSQL,
+        localForage.LOCALSTORAGE
+    ];
+
+    localForage.setDriver(driverTestOrder);
+
     // We allow localForage to be declared as a module or as a library
@@ -1568,0 +1571,0 @@ // available without AMD/require.js.

dist/localforage.nopromises.min.js

@@ -1,1 +0,1 @@
-(function(){"use strict";function a(a){if(a)for(var b in a)l[b]=a[b];return new j(function(a,b){var c=m.open(l.name,l.version);c.onerror=function(){b(c.error)},c.onupgradeneeded=function(){c.result.createObjectStore(l.storeName)},c.onsuccess=function(){k=c.result,a()}})}function b(a,b){var c=this;return new j(function(d,e){c.ready().then(function(){var c=k.transaction(l.storeName,"readonly").objectStore(l.storeName),f=c.get(a);f.onsuccess=function(){var a=f.result;void 0===a&&(a=null),i(b,a),d(a)},f.onerror=function(){b&&b(null,f.error),e(f.error)}},function(a){e(a)})})}function c(a,b,c){var d=this;return new j(function(e,f){d.ready().then(function(){var d=k.transaction(l.storeName,"readwrite").objectStore(l.storeName);null===b&&(b=void 0);var g=d.put(b,a);g.onsuccess=function(){void 0===b&&(b=null),i(c,b),e(b)},g.onerror=function(){c&&c(null,g.error),f(g.error)}},function(a){f(a)})})}function d(a,b){var c=this;return new j(function(d,e){c.ready().then(function(){var 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Gruntfile.js

@@ -37,3 +37,3 @@ /* jshint node:true */
                         '    localForage -- Offline Storage, Improved\n' +
-                        '    Version 0.9.1\n' +
+                        '    Version 0.9.2\n' +
                         '    http://mozilla.github.io/localForage\n' +
@@ -67,2 +67,16 @@ '    (c) 2013-2014 Mozilla, Apache License 2.0\n' +
         },
+        es3_safe_recast: {
+            dist: {
+                files: [{
+                    src: ['dist/localforage.js'],
+                    dest: 'dist/localforage.js'
+                }]
+            },
+            nopromises: {
+                files: [{
+                    src: ['dist/localforage.nopromises.js'],
+                    dest: 'dist/localforage.nopromises.js'
+                }]
+            }
+        },
         jscs: {
@@ -116,3 +130,3 @@ source: sourceFiles
                                       'component-build') +
-                         ' -o test -n localforage.component'
+                         ' --dev -o test -n localforage.component'
             },
@@ -157,3 +171,3 @@ 'publish-site': {
     grunt.registerTask('default', ['build', 'connect', 'watch']);
-    grunt.registerTask('build', ['concat', 'uglify']);
+    grunt.registerTask('build', ['concat', 'es3_safe_recast', 'uglify']);
     grunt.registerTask('publish', ['build', 'shell:publish-site']);
@@ -160,0 +174,0 @@ grunt.registerTask('serve', ['build', 'connect:test', 'watch']);

package.json

@@ -11,3 +11,3 @@ {
   ],
-  "version": "0.9.1",
+  "version": "0.9.2",
   "homepage": "https://github.com/mozilla/localForage",
@@ -31,2 +31,3 @@ "repository": {
     "grunt-contrib-watch": "^0.5.0",
+    "grunt-es3-safe-recast": "^0.1.0",
     "grunt-jscs-checker": "^0.4.4",
@@ -33,0 +34,0 @@ "grunt-mocha": "^0.4.10",

site/index.md

@@ -303,2 +303,5 @@ ---
 localforage.setDriver('localStorageWrapper');
+
+// Supply a list of drivers, in order of preference.
+localforage.setDriver(['WebSQLStorage', 'localStorageWrapper']);
 ```
@@ -309,7 +312,11 @@
 localforage.setDriver "localStorageWrapper"
+
+# Supply a list of drivers, in order of preference.
+localforage.setDriver ["WebSQLStorage", "localStorageWrapper"]
 ```
 
-`setDriver(driverName)`
+`setDriver(driverName)`<br>
+`setDriver([driverName, nextDriverName])`
 
-Force usage of a particular driver, if it is available.
+Force usage of a particular driver or drivers, if available.
 
@@ -316,0 +323,0 @@ By default, localForage selects backend drivers for the datastore in this

site/localforage.min.js

@@ -1,1 +0,1 @@
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LIMIT 1",[a],function(a,c){var e=c.rows.length?c.rows.item(0).value:null;e&&(e=j(e)),b&&b(e),d(e)},function(a,c){b&&b(null,c),e(c)})})},e)})}function c(a,b,c){var d=this;return new m(function(e,f){d.ready().then(function(){void 0===b&&(b=null);var d=b;k(b,function(b,g){g?f(g):o.transaction(function(g){g.executeSql("INSERT OR REPLACE INTO "+p.storeName+" (key, value) VALUES (?, ?)",[a,b],function(){c&&c(d),e(d)},function(a,b){c&&c(null,b),f(b)})},function(a){a.code===a.QUOTA_ERR&&(c&&c(null,a),f(a))})})},f)})}function d(a,b){var c=this;return new m(function(d,e){c.ready().then(function(){o.transaction(function(c){c.executeSql("DELETE FROM "+p.storeName+" WHERE key = ?",[a],function(){b&&b(),d()},function(a,c){b&&b(c),e(c)})})},e)})}function e(a){var b=this;return new m(function(c,d){b.ready().then(function(){o.transaction(function(b){b.executeSql("DELETE FROM "+p.storeName,[],function(){a&&a(),c()},function(b,c){a&&a(c),d(c)})})},d)})}function f(a){var b=this;return new m(function(c,d){b.ready().then(function(){o.transaction(function(b){b.executeSql("SELECT COUNT(key) as c FROM "+p.storeName,[],function(b,d){var e=d.rows.item(0).c;a&&a(e),c(e)},function(b,c){a&&a(null,c),d(c)})})},d)})}function g(a,b){var c=this;return new m(function(d,e){c.ready().then(function(){o.transaction(function(c){c.executeSql("SELECT key FROM "+p.storeName+" WHERE id = ? 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Uint32Array]"===c?e+=A:"[object Float32Array]"===c?e+=B:"[object Float64Array]"===c?e+=C:b(new Error("Failed to get type for BinaryArray"))),b(e+i(d))}else if("[object Blob]"===c){var f=new FileReader;f.onload=function(){var a=i(this.result);b(q+t+a)},f.readAsArrayBuffer(a)}else try{b(JSON.stringify(a))}catch(g){this.console&&this.console.error&&this.console.error("Couldn't convert value into a JSON string: ",a),b(null,g)}}var l="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",m="undefined"!=typeof module&&module.exports?require("promise"):this.Promise,n=this.openDatabase,o=null,p={},q="__lfsc__:",r=q.length,s="arbf",t="blob",u="si08",v="ui08",w="uic8",x="si16",y="si32",z="ur16",A="ui32",B="fl32",C="fl64",D=r+s.length;if(n){var E={_driver:"webSQLStorage",_initStorage:a,getItem:b,setItem:c,removeItem:d,clear:e,length:f,key:g,keys:h};"function"==typeof define&&define.amd?define("webSQLStorage",function(){return E}):"undefined"!=typeof module&&module.exports?module.exports=E:this.webSQLStorage=E}}.call(this),function(){"use strict";var a="undefined"!=typeof module&&module.exports?require("promise"):this.Promise,b=1,c=2,d=3,e=d;"function"==typeof define&&define.amd?e=b:"undefined"!=typeof module&&module.exports&&(e=c);var f=this,g={INDEXEDDB:"asyncStorage",LOCALSTORAGE:"localStorageWrapper",WEBSQL:"webSQLStorage",_config:{description:"",name:"localforage",size:4980736,storeName:"keyvaluepairs",version:1},config:function(a){if("object"==typeof a){if(this._ready)return new Error("Can't call config() after localforage has been used.");for(var b in a)this._config[b]=a[b];return!0}return"string"==typeof a?this._config[a]:this._config},driver:function(){return this._driver||null},_ready:!1,_driverSet:null,setDriver:function(d,g,h){var i=this,j=Array.isArray||function(a){return"[object Array]"===Object.prototype.toString.call(a)};return j(d)||"string"!=typeof d||(d=[d]),this._driverSet=new a(function(j,k){var l=i._getFirstSupportedDriver(d);if(!l){var m=new Error("No available storage method found.");return i._driverSet=a.reject(m),h&&h(m),void k(m)}if(i._ready=null,e===b)return void require([l],function(a){i._extend(a),g&&g(),j()});if(e===c){var n;switch(l){case i.INDEXEDDB:n=require("./drivers/indexeddb");break;case i.LOCALSTORAGE:n=require("./drivers/localstorage");break;case i.WEBSQL:n=require("./drivers/websql")}i._extend(n)}else i._extend(f[l]);g&&g(),j()}),this._driverSet},_getFirstSupportedDriver:function(a){if(a)for(var b=0;b<a.length;b++){var c=a[b];if(this.supports(c))return c}return null},supports:function(a){return!!h[a]},ready:function(b){var c=new a(function(a,b){g._driverSet.then(function(){null===g._ready&&(g._ready=g._initStorage(g._config)),g._ready.then(a,b)},b)});return c.then(b,b),c},_extend:function(a){for(var b in a)a.hasOwnProperty(b)&&(this[b]=a[b])}},h=function(a){var b=b||a.indexedDB||a.webkitIndexedDB||a.mozIndexedDB||a.OIndexedDB||a.msIndexedDB,c={};return c[g.WEBSQL]=!!a.openDatabase,c[g.INDEXEDDB]=!(!b||"function"!=typeof b.open||null!==b.open("_localforage_spec_test",1).onupgradeneeded),c[g.LOCALSTORAGE]=!!function(){try{return localStorage&&"function"==typeof localStorage.setItem}catch(a){return!1}}(),c}(this),i=[g.INDEXEDDB,g.WEBSQL,g.LOCALSTORAGE];g.setDriver(i),e===b?define(function(){return g}):e===c?module.exports=g:this.localforage=g}.call(this);

src/drivers/indexeddb.js

@@ -76,5 +76,3 @@ // Some code originally from async_storage.js in
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -121,5 +119,3 @@ }
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -135,10 +131,8 @@ }
 
-                // We use `['delete']` instead of `.delete` because IE 8 will
-                // throw a fit if it sees the reserved word "delete" in this
-                // scenario.
-                // See: https://github.com/mozilla/localForage/pull/67
-                //
-                // This can be removed once we no longer care about IE 8, for
-                // what that's worth.
-                var req = store['delete'](key);
+                // We use a Grunt task to make this safe for IE and some
+                // versions of Android (including those used by Cordova).
+                // Normally IE won't like `.delete()` and will insist on
+                // using `['delete']()`, but we have a build step that
+                // fixes this for us now.
+                var req = store.delete(key);
                 req.onsuccess = function() {
@@ -172,5 +166,3 @@
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -200,5 +192,3 @@ }
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -230,5 +220,3 @@ }
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -301,5 +289,3 @@ }
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -342,5 +328,3 @@ }
                 };
-            }, function(err) {
-               reject(err) ;
-            });
+            }, reject);
         });
@@ -347,0 +331,0 @@ }

src/drivers/localstorage.js

@@ -68,3 +68,3 @@ // If IndexedDB isn't available, we'll fall back to localStorage.
         var _this = this;
-        return new Promise(function(resolve) {
+        return new Promise(function(resolve, reject) {
             _this.ready().then(function() {
@@ -78,3 +78,3 @@ localStorage.clear();
                 resolve();
-            });
+            }, reject);
         });
@@ -113,3 +113,3 @@ }
                 }
-            });
+            }, reject);
         });
@@ -121,3 +121,3 @@ }
         var _this = this;
-        return new Promise(function(resolve) {
+        return new Promise(function(resolve, reject) {
             _this.ready().then(function() {
@@ -140,3 +140,3 @@ var result;
                 resolve(result);
-            });
+            }, reject);
         });
@@ -147,3 +147,3 @@ }
         var _this = this;
-        return new Promise(function(resolve) {
+        return new Promise(function(resolve, reject) {
             _this.ready().then(function() {
@@ -162,3 +162,3 @@ var length = localStorage.length;
                 resolve(keys);
-            });
+            }, reject);
         });
@@ -170,3 +170,3 @@ }
         var _this = this;
-        return new Promise(function(resolve) {
+        return new Promise(function(resolve, reject) {
             _this.ready().then(function() {
@@ -180,3 +180,3 @@ var result = localStorage.length;
                 resolve(result);
-            });
+            }, reject);
         });
@@ -188,3 +188,3 @@ }
         var _this = this;
-        return new Promise(function(resolve) {
+        return new Promise(function(resolve, reject) {
             _this.ready().then(function() {
@@ -198,3 +198,3 @@ localStorage.removeItem(keyPrefix + key);
                 resolve();
-            });
+            }, reject);
         });
@@ -405,3 +405,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -408,0 +408,0 @@ }

src/drivers/websql.js

@@ -59,3 +59,3 @@ /*
 
-        return new Promise(function(resolve) {
+        return new Promise(function(resolve, reject) {
             // Open the database; the openDatabase API will automatically
@@ -67,3 +67,3 @@ // create it for us if it doesn't exist.
             } catch (e) {
-                return _this.setDriver('localStorageWrapper').then(resolve);
+                return _this.setDriver('localStorageWrapper').then(resolve, reject);
             }
@@ -76,3 +76,5 @@
                     resolve();
-                }, null);
+                }, function(t, error) {
+                    reject(error);
+                });
             });
@@ -110,3 +112,3 @@ });
                 });
-            });
+            }, reject);
         });
@@ -167,3 +169,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -192,3 +194,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -218,3 +220,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -248,3 +250,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -282,3 +284,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -314,3 +316,3 @@ }
                 });
-            });
+            }, reject);
         });
@@ -317,0 +319,0 @@ }

src/localforage.js

@@ -25,24 +25,2 @@ (function() {
 
-    // Initialize IndexedDB; fall back to vendor-prefixed versions if needed.
-    var indexedDB = indexedDB || this.indexedDB || this.webkitIndexedDB ||
-                    this.mozIndexedDB || this.OIndexedDB ||
-                    this.msIndexedDB;
-
-    var supportsIndexedDB = indexedDB &&
-                            typeof indexedDB.open === 'function' &&
-                            indexedDB.open('_localforage_spec_test', 1)
-                                     .onupgradeneeded === null;
-
-    // Check for WebSQL.
-    var openDatabase = this.openDatabase;
-
-    // Check for localStorage.
-    var supportsLocalStorage = (function() {
-        try {
-            return localStorage && typeof localStorage.setItem === 'function';
-        } catch (e) {
-            return false;
-        }
-    })();
-
     // The actual localForage object that we expose as a module or via a
@@ -102,17 +80,25 @@ // global. It's extended by pulling in one of our other libraries.
 
-        setDriver: function(driverName, callback, errorCallback) {
+        setDriver: function(drivers, callback, errorCallback) {
             var self = this;
 
+            var isArray = Array.isArray || function(arg) {
+                return Object.prototype.toString.call(arg) === '[object Array]';
+            };
+
+            if (!isArray(drivers) && typeof drivers === 'string') {
+                drivers = [drivers];
+            }
+
             this._driverSet = new Promise(function(resolve, reject) {
-                if ((!supportsIndexedDB &&
-                     driverName === localForage.INDEXEDDB) ||
-                    (!openDatabase && driverName === localForage.WEBSQL) ||
-                    (!supportsLocalStorage &&
-                     driverName === localForage.LOCALSTORAGE)) {
+                var driverName = self._getFirstSupportedDriver(drivers);
 
+                if (!driverName) {
+                    var error = new Error('No available storage method found.');
+                    self._driverSet = Promise.reject(error);
+
                     if (errorCallback) {
-                        errorCallback();
+                        errorCallback(error);
                     }
 
-                    reject(localForage);
+                    reject(error);
 
@@ -166,4 +152,22 @@ return;
 
+        _getFirstSupportedDriver: function(drivers) {
+            if (drivers) {
+                for (var i = 0; i < drivers.length; i++) {
+                    var driver = drivers[i];
+
+                    if (this.supports(driver)) {
+                        return driver;
+                    }
+                }
+            }
+
+            return null;
+        },
+
+        supports: function(driverName) {
+            return !!driverSupport[driverName];
+        },
+
         ready: function(callback) {
-            var ready = new Promise(function(resolve) {
+            var ready = new Promise(function(resolve, reject) {
                 localForage._driverSet.then(function() {
@@ -175,4 +179,4 @@ if (localForage._ready === null) {
 
-                    localForage._ready.then(resolve);
-                });
+                    localForage._ready.then(resolve, reject);
+                }, reject);
             });
@@ -194,4 +198,2 @@
 
-    // Select our storage library.
-    var storageLibrary;
     // Check to see if IndexedDB is available and if it is the latest
@@ -202,24 +204,39 @@ // implementation; it's our preferred backend library. We use "_spec_test"
     // See: https://github.com/mozilla/localForage/issues/128
-    if (supportsIndexedDB) {
-        storageLibrary = localForage.INDEXEDDB;
-    } else if (openDatabase) { // WebSQL is available, so we'll use that.
-        storageLibrary = localForage.WEBSQL;
-    } else if (supportsLocalStorage) { // If nothing else is available,
-                                       // we try to use localStorage.
-        storageLibrary = localForage.LOCALSTORAGE;
-    }
+    var driverSupport = (function(_this) {
+        // Initialize IndexedDB; fall back to vendor-prefixed versions
+        // if needed.
+        var indexedDB = indexedDB || _this.indexedDB || _this.webkitIndexedDB ||
+                        _this.mozIndexedDB || _this.OIndexedDB ||
+                        _this.msIndexedDB;
 
-    // If window.localForageConfig is set, use it for configuration.
-    if (this.localForageConfig) {
-        localForage.config = this.localForageConfig;
-    }
+        var result = {};
 
-    // Set the (default) driver, or report the error.
-    if (storageLibrary) {
-        localForage.setDriver(storageLibrary);
-    } else {
-        localForage._ready = Promise.reject(
-            new Error('No available storage method found.'));
-    }
+        result[localForage.WEBSQL] = !!_this.openDatabase;
+        result[localForage.INDEXEDDB] = !!(
+            indexedDB &&
+            typeof indexedDB.open === 'function' &&
+            indexedDB.open('_localforage_spec_test', 1)
+                     .onupgradeneeded === null
+        );
 
+        result[localForage.LOCALSTORAGE] = !!(function() {
+            try {
+                return (localStorage &&
+                        typeof localStorage.setItem === 'function');
+            } catch (e) {
+                return false;
+            }
+        })();
+
+        return result;
+    })(this);
+
+    var driverTestOrder = [
+        localForage.INDEXEDDB,
+        localForage.WEBSQL,
+        localForage.LOCALSTORAGE
+    ];
+
+    localForage.setDriver(driverTestOrder);
+
     // We allow localForage to be declared as a module or as a library
@@ -226,0 +243,0 @@ // available without AMD/require.js.

test/test.api.js

@@ -1,2 +0,2 @@
-/* global before:true, beforeEach:true, describe:true, expect:true, it:true, Modernizr:true, Promise:true, require:true */
+/* global after:true, before:true, beforeEach:true, describe:true, expect:true, it:true, Modernizr:true, Promise:true, require:true */
 var DRIVERS = [
@@ -22,6 +22,5 @@ localforage.INDEXEDDB,
         if (componentBuild) {
-            var promise = require.modules['then~promise@4.0.0'].exports;
-            expect(typeof promise).to.be('function');
+            expect(require('promise')).to.be.a('function');
         } else {
-            expect(typeof Promise).to.be('function');
+            expect(Promise).to.be.a('function');
         }
@@ -31,2 +30,33 @@ });
 
+describe('localForage', function() {
+    var appropriateDriver;
+
+    before(function() {
+        appropriateDriver =
+            (localforage.supports(localforage.WEBSQL) && localforage.WEBSQL) ||
+            (localforage.supports(localforage.INDEXEDDB) &&
+             localforage.INDEXEDDB) ||
+            (localforage.supports(localforage.localStorage) &&
+             localforage.localStorage);
+    });
+
+    it('automatically selects the most appropriate driver (' +
+       appropriateDriver + ')', function(done) {
+        if (appropriateDriver) {
+            localforage.ready().then(function() {
+                expect(localforage.driver()).to.be(appropriateDriver);
+                done();
+            });
+        } else {
+            localforage.ready().then(null, function(error) {
+                expect(error).to.be.an(Error);
+                expect(error.message).to
+                                     .be('No available storage method found.');
+                expect(localforage.driver()).to.be(null);
+                done();
+            });
+        }
+    });
+});
+
 DRIVERS.forEach(function(driverName) {
@@ -53,24 +83,31 @@ if ((!Modernizr.indexeddb && driverName === localforage.INDEXEDDB) ||
         it('has a localStorage API', function() {
-            expect(typeof localforage.getItem).to.be('function');
-            expect(typeof localforage.setItem).to.be('function');
-            expect(typeof localforage.clear).to.be('function');
-            expect(typeof localforage.length).to.be('function');
-            expect(typeof localforage.removeItem).to.be('function');
-            expect(typeof localforage.key).to.be('function');
+            expect(localforage.getItem).to.be.a('function');
+            expect(localforage.setItem).to.be.a('function');
+            expect(localforage.clear).to.be.a('function');
+            expect(localforage.length).to.be.a('function');
+            expect(localforage.removeItem).to.be.a('function');
+            expect(localforage.key).to.be.a('function');
         });
 
         it('has the localForage API', function() {
-            expect(typeof localforage._initStorage).to.be('function');
-            expect(typeof localforage.config).to.be('function');
-            expect(typeof localforage.driver).to.be('function');
-            expect(typeof localforage.getItem).to.be('function');
-            expect(typeof localforage.setItem).to.be('function');
-            expect(typeof localforage.clear).to.be('function');
-            expect(typeof localforage.length).to.be('function');
-            expect(typeof localforage.removeItem).to.be('function');
-            expect(typeof localforage.key).to.be('function');
-            expect(typeof localforage.setDriver).to.be('function');
-            expect(typeof localforage.ready).to.be('function');
+            expect(localforage._initStorage).to.be.a('function');
+            expect(localforage.config).to.be.a('function');
+            expect(localforage.driver).to.be.a('function');
+            expect(localforage.supports).to.be.a('function');
+            expect(localforage.getItem).to.be.a('function');
+            expect(localforage.setItem).to.be.a('function');
+            expect(localforage.clear).to.be.a('function');
+            expect(localforage.length).to.be.a('function');
+            expect(localforage.removeItem).to.be.a('function');
+            expect(localforage.key).to.be.a('function');
+            expect(localforage.setDriver).to.be.a('function');
+            expect(localforage.ready).to.be.a('function');
         });
 
+        // Make sure we don't support bogus drivers.
+        it('supports ' + driverName + ' database driver', function() {
+            expect(localforage.supports(driverName) === true);
+            expect(localforage.supports('I am not a driver') === false);
+        });
+
         it('sets the right database driver', function() {
@@ -337,2 +374,97 @@ expect(localforage.driver() === driverName);
     });
+
+    describe(driverName + ' driver', function() {
+        'use strict';
+
+        var driverPreferedOrder;
+
+        before(function() {
+            // add some unsupported drivers before
+            // and after the target driver
+            driverPreferedOrder = ['I am a not supported driver'];
+
+            if (!Modernizr.websqldatabase) {
+                driverPreferedOrder.push(localforage.WEBSQL);
+            }
+            if (!Modernizr.indexeddb) {
+                driverPreferedOrder.push(localforage.INDEXEDDB);
+            }
+            if (!Modernizr.localstorage) {
+                driverPreferedOrder.push(localforage.localStorage);
+            }
+
+            driverPreferedOrder.push(driverName);
+
+            driverPreferedOrder.push('I am another not supported driver');
+        });
+
+        it('is used according to setDriver preference order', function(done) {
+            localforage.setDriver(driverPreferedOrder).then(function() {
+                expect(localforage.driver()).to.be(driverName);
+                done();
+            });
+        });
+    });
+
+    describe(driverName + ' driver when ready() gets rejected', function() {
+        'use strict';
+
+        var _oldReady;
+
+        before(function(done) {
+            _oldReady = localforage.ready;
+            localforage.ready = function() {
+                return Promise.reject();
+            };
+            done();
+        });
+
+        after(function(done) {
+            localforage.ready = _oldReady;
+            _oldReady = null;
+            done();
+        });
+
+        it('rejects getItem() promise', function(done) {
+            localforage.getItem().then(null, function(/*err*/) {
+                done();
+            });
+        });
+
+        it('rejects setItem() promise', function(done) {
+            localforage.setItem().then(null, function(/*err*/) {
+                done();
+            });
+        });
+
+        it('rejects clear() promise', function(done) {
+            localforage.clear().then(null, function(/*err*/) {
+                done();
+            });
+        });
+
+        it('rejects length() promise', function(done) {
+            localforage.length().then(null, function(/*err*/) {
+                done();
+            });
+        });
+
+        it('rejects removeItem() promise', function(done) {
+            localforage.removeItem().then(null, function(/*err*/) {
+                done();
+            });
+        });
+
+        it('rejects key() promise', function(done) {
+            localforage.key().then(null, function(/*err*/) {
+                done();
+            });
+        });
+
+        it('rejects keys() promise', function(done) {
+            localforage.keys().then(null, function(/*err*/) {
+                done();
+            });
+        });
+    });
 });

test/test.config.js

@@ -115,3 +115,3 @@ /* global before:true, beforeEach:true, describe:true, expect:true, it:true */
     it("returns all values when config isn't passed arguments", function() {
-        expect(typeof localforage.config()).to.be('object');
+        expect(localforage.config()).to.be.an('object');
         expect(Object.keys(localforage.config()).length).to.be(5);
@@ -118,0 +118,0 @@ });

test/test.datatypes.js

@@ -52,7 +52,7 @@ /* global before:true, beforeEach:true, describe:true, expect:true, it:true, Modernizr:true */
                 expect(setValue).to.be(546);
-                expect(typeof setValue).to.be('number');
+                expect(setValue).to.be.a('number');
 
                 localforage.getItem('number', function(value) {
                     expect(value).to.be(setValue);
-                    expect(typeof value).to.be('number');
+                    expect(value).to.be.a('number');
                     done();
@@ -65,3 +65,3 @@ });
                 expect(setValue).to.be(546);
-                expect(typeof setValue).to.be('number');
+                expect(setValue).to.be.a('number');
 
@@ -71,3 +71,3 @@ return localforage.getItem('number');
                 expect(value).to.be(546);
-                expect(typeof value).to.be('number');
+                expect(value).to.be.a('number');
                 done();
@@ -80,7 +80,7 @@ });
                 expect(setValue).to.be(false);
-                expect(typeof setValue).to.be('boolean');
+                expect(setValue).to.be.a('boolean');
 
                 localforage.getItem('boolean', function(value) {
                     expect(value).to.be(setValue);
-                    expect(typeof value).to.be('boolean');
+                    expect(value).to.be.a('boolean');
                     done();
@@ -93,3 +93,3 @@ });
                 expect(setValue).to.be(false);
-                expect(typeof setValue).to.be('boolean');
+                expect(setValue).to.be.a('boolean');
 
@@ -99,3 +99,3 @@ return localforage.getItem('boolean');
                 expect(value).to.be(false);
-                expect(typeof value).to.be('boolean');
+                expect(value).to.be.a('boolean');
                 done();
@@ -108,7 +108,5 @@ });
                 expect(setValue).to.be(null);
-                expect(typeof setValue).to.be('object');
 
                 localforage.getItem('null', function(value) {
-                    expect(value).to.be(setValue);
-                    expect(typeof value).to.be('object');
+                    expect(value).to.be(null);
                     done();
@@ -121,3 +119,2 @@ });
                 expect(setValue).to.be(null);
-                expect(typeof setValue).to.be('object');
 
@@ -127,3 +124,2 @@ return localforage.getItem('null');
                 expect(value).to.be(null);
-                expect(typeof value).to.be('object');
                 done();
@@ -136,7 +132,5 @@ });
                 expect(setValue).to.be(null);
-                expect(typeof setValue).to.be('object');
 
                 localforage.getItem('null', function(value) {
-                    expect(value).to.be(setValue);
-                    expect(typeof value).to.be('object');
+                    expect(value).to.be(null);
                     done();
@@ -149,3 +143,2 @@ });
                 expect(setValue).to.be(null);
-                expect(typeof setValue).to.be('object');
 
@@ -155,3 +148,2 @@ return localforage.getItem('null');
                 expect(value).to.be(null);
-                expect(typeof value).to.be('object');
                 done();
@@ -164,7 +156,7 @@ });
                 expect(setValue).to.be(546.041);
-                expect(typeof setValue).to.be('number');
+                expect(setValue).to.be.a('number');
 
                 localforage.getItem('float', function(value) {
                     expect(value).to.be(setValue);
-                    expect(typeof value).to.be('number');
+                    expect(value).to.be.a('number');
                     done();
@@ -177,3 +169,3 @@ });
                 expect(setValue).to.be(546.041);
-                expect(typeof setValue).to.be('number');
+                expect(setValue).to.be.a('number');
 
@@ -183,3 +175,3 @@ return localforage.getItem('float');
                 expect(value).to.be(546.041);
-                expect(typeof value).to.be('number');
+                expect(value).to.be.a('number');
                 done();
@@ -198,3 +190,3 @@ });
                     expect(value instanceof Array).to.be(true);
-                    expect(typeof value[1]).to.be('string');
+                    expect(value[1]).to.be.a('string');
                     done();
@@ -213,3 +205,3 @@ });
                 expect(value instanceof Array).to.be(true);
-                expect(typeof value[1]).to.be('string');
+                expect(value[1]).to.be.a('string');
                 done();
@@ -224,2 +216,8 @@ });
             },
+            nestedObjects: [
+                {truth: true},
+                {theCake: 'is a lie'},
+                {happiness: 'is a warm gun'},
+                false
+            ],
             string: 'bar'
@@ -231,3 +229,3 @@ };
                     .to.be(Object.keys(objectToSave).length);
-                expect(typeof setValue).to.be('object');
+                expect(setValue).to.be.an('object');
 
@@ -237,4 +235,7 @@ localforage.getItem('obj', function(value) {
                         .to.be(Object.keys(objectToSave).length);
-                    expect(typeof value).to.be('object');
-                    expect(typeof value.nested).to.be('object');
+                    expect(value).to.be.an('object');
+                    expect(value.nested).to.be.an('object');
+                    expect(value.nestedObjects[0].truth).to.be.a('boolean');
+                    expect(value.nestedObjects[1].theCake).to.be.a('string');
+                    expect(value.nestedObjects[3]).to.be(false);
                     done();
@@ -248,3 +249,3 @@ });
                     .to.be(Object.keys(objectToSave).length);
-                expect(typeof setValue).to.be('object');
+                expect(setValue).to.be.an('object');
 
@@ -255,4 +256,7 @@ return localforage.getItem('obj');
                     .to.be(Object.keys(objectToSave).length);
-                expect(typeof value).to.be('object');
-                expect(typeof value.nested).to.be('object');
+                expect(value).to.be.an('object');
+                expect(value.nested).to.be.an('object');
+                expect(value.nestedObjects[0].truth).to.be.a('boolean');
+                expect(value.nestedObjects[1].theCake).to.be.a('string');
+                expect(value.nestedObjects[3]).to.be(false);
                 done();
@@ -259,0 +263,0 @@ });

test/test.nodriver.js

@@ -1,44 +0,85 @@
-/* global before:true, describe:true, expect:true, it:true */
+/* global describe:true, expect:true, it:true, Modernizr:true */
 describe('When No Drivers Are Available', function() {
     'use strict';
 
-    before(function(done) {
-        try {
-            window.indexedDB.open = null;
-        } catch (error) {
-        }
-        try {
-            window.localStorage.setItem = null;
-        } catch (error) {
-        }
-        try {
-            window.openDatabase = null;
-        } catch (error) {
-        }
+    var DRIVERS = [
+        localforage.INDEXEDDB,
+        localforage.LOCALSTORAGE,
+        localforage.WEBSQL
+    ];
 
-        done();
+    it('agrees with Modernizr on storage drivers support', function() {
+        expect(localforage.supports(localforage.INDEXEDDB)).to.be(false);
+        expect(localforage.supports(localforage.INDEXEDDB))
+            .to.be(Modernizr.indexeddb);
+
+        expect(localforage.supports(localforage.LOCALSTORAGE))
+            .to.be(false);
+        expect(localforage.supports(localforage.LOCALSTORAGE))
+            .to.be(Modernizr.localstorage);
+
+        expect(localforage.supports(localforage.WEBSQL)).to.be(false);
+        expect(localforage.supports(localforage.WEBSQL))
+            .to.be(Modernizr.websqldatabase);
     });
 
-    // Test to make sure localStorage isn't used when it isn't available.
-    // it("can't use unsupported localStorage [callback]", function(done) {
-    //     var _oldLS = window.localStorage;
-    //     window.localStorage = null;
-    //
-    //     localforage.setDriver(localforage.LOCALSTORAGE, null, function() {
-    //         expect(localforage.driver()).to.be(previousDriver);
-    //         done();
-    //     });
-    // });
-    it.skip('fails to load localForage [promise]', function(done) {
-        localforage.ready(null, function(error) {
-            expect(error).to.be('No available storage method found.');
+    it('fails to load localForage [callback]', function(done) {
+        localforage.ready(function(error) {
+            expect(error).to.be.an(Error);
+            expect(error.message).to.be('No available storage method found.');
             done();
         });
-        // localforage.setDriver(localforage.LOCALSTORAGE).then(null,
-        //                                                      function(error) {
-        //     expect(error).to.be('No available storage method found.');
-        //     window.localStorage = _oldLS;
-        //     done();
-        // });
     });
+
+    it('fails to load localForage [promise]', function(done) {
+        localforage.ready().then(null, function(error) {
+            expect(error).to.be.an(Error);
+            expect(error.message).to.be('No available storage method found.');
+            done();
+        });
+    });
+
+    it('has no driver set', function(done) {
+        localforage.ready(function() {
+            expect(localforage.driver()).to.be(null);
+            done();
+        });
+    });
+
+    DRIVERS.forEach(function(driverName) {
+        it('fails to setDriver ' + driverName + ' [callback]', function(done) {
+            localforage.setDriver(driverName, null, function(error) {
+                expect(error).to.be.an(Error);
+                expect(error.message).to
+                                     .be('No available storage method found.');
+                done();
+            });
+        });
+
+        it('fails to setDriver ' + driverName + ' [promise]', function(done) {
+            localforage.setDriver(driverName).then(null, function(error) {
+                expect(error).to.be.an(Error);
+                expect(error.message).to
+                                     .be('No available storage method found.');
+                done();
+            });
+        });
+    });
+
+    it('fails to setDriver using array parameter [callback]', function(done) {
+        localforage.setDriver(DRIVERS, null, function(error) {
+            expect(error).to.be.an(Error);
+            expect(error.message).to.be('No available storage method found.');
+            done();
+        });
+    });
+
+    it('fails to setDriver using array parameter [promise]', function(done) {
+        localforage.setDriver(DRIVERS).then(null, function(error) {
+            expect(error).to.be.an(Error);
+            expect(error.message).to.be('No available storage method found.');
+            done();
+        });
+    });
+
 });

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