test(encoding): test unicode, delims, and res char

tests/Imgix/Tests/PathEncodingTest.php

@@ -0,0 +1,34 @@
+<?php
+
+use Imgix\UrlBuilder;
+
+class PathEncodingTest extends \PHPUnit\Framework\TestCase {
+  // NOTE: all the expected urls bellow resolve to an actual image.
+    const HOST = "sdk-test.imgix.net";
+
+    public function testBracketEncoding() {
+    $builder = new UrlBuilder(self::HOST, true, "",  false);
+    $url = $builder->createURL("/ <>[]{}|\\^%.jpg");
+    $this->assertEquals(
+      "https://sdk-test.imgix.net/%20%3C%3E%5B%5D%7B%7D%7C%5C%5E%25.jpg",
+       $url);
+    }
+
+    public function testSpecialCharsEncoding() {
+    $builder = new UrlBuilder(self::HOST, true, "",  false);
+    $url = $builder->createURL("&$+,:;=?@#.jpg");
+    $this->assertEquals(
+      "https://sdk-test.imgix.net/%26%24%2B%2C:%3B%3D%3F@%23.jpg",
+       $url);
+    }
+
+    public function testUnicodeEncoding() {
+    $builder = new UrlBuilder(self::HOST, true, "",  false);
+    $url = $builder->createURL("/ساندویچ.jpg");
+    $this->assertEquals(
+      "https://sdk-test.imgix.net/%D8%B3%D8%A7%D9%86%D8%AF%D9%88%DB%8C%DA%86.jpg",
+       $url);
+    }
+
+  }
+?>