1 files changed, 56 insertions, 0 deletions
diff --git a/www/wiki/tests/qunit/suites/resources/mediawiki/mediawiki.storage.test.js b/www/wiki/tests/qunit/suites/resources/mediawiki/mediawiki.storage.test.js
new file mode 100644
index 00000000..436cb2ed
--- /dev/null
+++ b/www/wiki/tests/qunit/suites/resources/mediawiki/mediawiki.storage.test.js
@@ -0,0 +1,56 @@
+( function ( mw ) {
+	QUnit.module( 'mediawiki.storage' );
+
+	QUnit.test( 'set/get with storage support', function ( assert ) {
+		var stub = {
+			setItem: this.sandbox.spy(),
+			getItem: this.sandbox.stub()
+		};
+		stub.getItem.withArgs( 'foo' ).returns( 'test' );
+		stub.getItem.returns( null );
+		this.sandbox.stub( mw.storage, 'store', stub );
+
+		mw.storage.set( 'foo', 'test' );
+		assert.ok( stub.setItem.calledOnce );
+
+		assert.strictEqual( mw.storage.get( 'foo' ), 'test', 'Check value gets stored.' );
+		assert.strictEqual( mw.storage.get( 'bar' ), null, 'Unset values are null.' );
+	} );
+
+	QUnit.test( 'set/get with storage methods disabled', function ( assert ) {
+		// This covers browsers where storage is disabled
+		// (quota full, or security/privacy settings).
+		// On most browsers, these interface will be accessible with
+		// their methods throwing.
+		var stub = {
+			getItem: this.sandbox.stub(),
+			removeItem: this.sandbox.stub(),
+			setItem: this.sandbox.stub()
+		};
+		stub.getItem.throws();
+		stub.setItem.throws();
+		stub.removeItem.throws();
+		this.sandbox.stub( mw.storage, 'store', stub );
+
+		assert.strictEqual( mw.storage.get( 'foo' ), false );
+		assert.strictEqual( mw.storage.set( 'foo', 'test' ), false );
+		assert.strictEqual( mw.storage.remove( 'foo', 'test' ), false );
+	} );
+
+	QUnit.test( 'set/get with storage object disabled', function ( assert ) {
+		// On other browsers, these entire object is disabled.
+		// `'localStorage' in window` would be true (and pass feature test)
+		// but trying to read the object as window.localStorage would throw
+		// an exception. Such case would instantiate SafeStorage with
+		// undefined after the internal try/catch.
+		var old = mw.storage.store;
+		mw.storage.store = undefined;
+
+		assert.strictEqual( mw.storage.get( 'foo' ), false );
+		assert.strictEqual( mw.storage.set( 'foo', 'test' ), false );
+		assert.strictEqual( mw.storage.remove( 'foo', 'test' ), false );
+
+		mw.storage.store = old;
+	} );
+
+}( mediaWiki ) );