Updated facade to return correct accessor

composer.json

@@ -16,12 +16,13 @@
     },
     "require-dev": {
         "mockery/mockery": "dev-master",
-        "phpunit/phpunit": "4.8.*"
+        "phpunit/phpunit": "4.8.*",
+        "illuminate/support": "^5.1"
     },
     "autoload": {
         "psr-4": {
             "Fadion\\Fixerio\\": "src"
         }
     },
     "minimum-stability": "stable"
-}
+}

src/Facades/Exchange.php

@@ -14,6 +14,9 @@ class Exchange extends Facade
      *
      * @return string
      */
-    protected static function getFacadeAccessor() { return 'exchange'; }
+    protected static function getFacadeAccessor()
+    {
+        return \Fadion\Fixerio\Exchange::class;
+    }
 
-}
+}

tests/LaravelIntegrationTest.php

@@ -0,0 +1,18 @@
+<?php
+
+use Fadion\Fixerio\ExchangeServiceProvider;
+use Fadion\Fixerio\Facades\Exchange as Facade;
+
+class LaravelIntegrationTest extends \PHPUnit\Framework\TestCase
+{
+    public function testServiceProviderProvidesFacadeAccessor()
+    {
+        $provides = (new ExchangeServiceProvider(null))->provides();
+
+        $app = array_combine($provides, $provides);
+
+        Facade::setFacadeApplication($app);
+
+        $this->assertContains(Facade::getFacadeRoot(), $provides);
+    }
+}