Unit Tests

- Added More Unit Tests

tests/PayPal/Test/Validation/UrlValidatorTest.php

@@ -0,0 +1,55 @@
+<?php
+namespace PayPal\Test\Validation;
+
+use PayPal\Validation\UrlValidator;
+
+class UrlValidatorTest extends \PHPUnit_Framework_TestCase
+{
+
+    public static function positiveProvider()
+    {
+        return array(
+            array("https://www.paypal.com"),
+            array("http://www.paypal.com"),
+            array("https://paypal.com"),
+            array("https://www.paypal.com/directory/file"),
+            array("https://www.paypal.com/directory/file?something=1&other=true"),
+            array("https://www.paypal.com?value="),
+            array("https://www.paypal.com/123123"),
+            array("https://www.subdomain.paypal.com"),
+            array("https://www.sub-domain-with-dash.paypal-website.com"),
+            array("https://www.paypal.com?value=space%20separated%20value"),
+            array("https://www.special@character.com"),
+        );
+    }
+
+    public static function invalidProvider()
+    {
+        return array(
+            array("www.paypal.com"),
+            array(""),
+            array(null),
+            array("https://www.sub_domain_with_underscore.paypal.com"),
+        );
+    }
+
+    /**
+     *
+     * @dataProvider positiveProvider
+     */
+    public function testValidate($input)
+    {
+        UrlValidator::validate($input, "Test Value");
+    }
+
+    /**
+     *
+     * @dataProvider invalidProvider
+     * @expectedException \InvalidArgumentException
+     */
+    public function testValidateException($input)
+    {
+       UrlValidator::validate($input, "Test Value");
+    }
+
+}