started writing tests

.gitignore

@@ -1,3 +1,5 @@
 .buildpath
 .project
 .settings
+vendor
+composer.lock

composer.json

@@ -19,5 +19,8 @@
         "psr-4": {
             "Allegro\\REST\\": "src"
         }
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^5.7"
     }
 }

tests/test.php

@@ -0,0 +1,32 @@
+<?php
+require_once dirname(__DIR__) . '/vendor/autoload.php';
+require_once dirname(__DIR__) . '/src/Resource.php';
+require_once dirname(__DIR__) . '/src/Api.php';
+
+use PHPUnit\Framework\TestCase;
+
+class ApiTest extends TestCase
+{
+    function testGetUri()
+    {
+        $api = new Allegro\REST\Api('eggs', 'spam', 'ham', 'beans');
+
+        $this->assertEquals('https://allegroapi.io/',
+                            $api->getUri());
+
+        $this->assertEquals('https://allegroapi.io/categories/',
+                            $api->categories->getUri());
+
+        $this->assertEquals('https://allegroapi.io/categories/12/',
+                            $api->categories(12)->getUri());
+    }
+
+    function testGetAutorizationUri()
+    {
+        $api = new Allegro\REST\Api('eggs', 'spam', 'ham', 'beans');
+
+        $this->assertEquals('https://ssl.allegro.pl/auth/oauth/authorize' .
+                            '?response_type=code&client_id=eggs&api-key=ham&redirect_uri=beans',
+                            $api->getAuthorizationUri());
+    }
+}