fix(ios) : Convert property ‘value’ to string inside hasText function

iphone/Classes/TiUITextWidgetProxy.m

@@ -63,7 +63,7 @@ - (NSNumber *)hasText:(id)unused
         YES);
     return [NSNumber numberWithBool:viewHasText];
   } else {
-    NSString *value = [self valueForKey:@"value"];
+    NSString *value = [TiUtils stringValue:[self valueForKey:@"value"]];
     BOOL viewHasText = value != nil && [value length] > 0;
     return [NSNumber numberWithBool:viewHasText];
   }

tests/Resources/ti.ui.textfield.addontest.js

@@ -0,0 +1,45 @@
+/*
+ * Appcelerator Titanium Mobile
+ * Copyright (c) 2011-Present by Appcelerator, Inc. All Rights Reserved.
+ * Licensed under the terms of the Apache Public License
+ * Please see the LICENSE included with this distribution for details.
+ */
+/* eslint-env mocha */
+/* global Ti, Titanium */
+/* eslint no-unused-expressions: "off" */
+'use strict';
+var should = require('./utilities/assertions');
+
+describe('Titanium.UI.TextField', function () {
+	var win;
+
+	afterEach(function () {
+		if (win) {
+			win.close();
+		}
+		win = null;
+	});
+
+	it.ios('hasText', function () {
+		win = Ti.UI.createWindow();
+		var textFieldA = Ti.UI.createTextField({
+			top: '60dip',
+			value: 0
+		});
+
+		win.add(textFieldA);
+
+		var textFieldB = Ti.UI.createTextField({
+			top: '120dip',
+			value: 0
+		});
+
+		win.add(textFieldB);
+
+		should(textFieldA.hasText()).be.true;
+		should(textFieldB.hasText()).be.true;
+
+		win.open();
+	});
+
+});