diff --git a/.travis.yml b/.travis.yml
index 0006510..bc7dbf0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,5 @@
 language: php
 php:
-  - '5.5'
   - '5.6'
   - '7.0'
 services:
diff --git a/tests/BaseHelperTest.php b/tests/BaseHelperTest.php
new file mode 100644
index 0000000..a40551a
--- /dev/null
+++ b/tests/BaseHelperTest.php
@@ -0,0 +1,39 @@
+<?php
+use App\Helpers\BaseHelper;
+
+class BaseHelperTest extends TestCase
+{
+    /**
+     * Test BaseHelper
+     *
+     * @return void
+     */
+
+    private static function checkBaseGen($num) {
+        $toBase32 = BaseHelper::toBase($num, 32);
+        $toBase62 = BaseHelper::toBase($num, 62);
+
+        $fromBase32 = BaseHelper::toBase10($toBase32, 32);
+        $fromBase62 = BaseHelper::toBase10($toBase62, 62);
+
+        if ($fromBase62 == $num && $fromBase32 == $num) {
+            return true;
+        }
+        return false;
+    }
+    public function testLogin() {
+        $nums = [
+            523002,
+            1204,
+            23,
+            0,
+            1,
+            45
+        ];
+
+        foreach ($nums as $n) {
+            $this->assertEquals(true, self::checkBaseGen($n));
+        }
+
+    }
+}