diff --git a/tests/admin/ModelRetailcrmInventoryAdminTest.php b/tests/admin/ModelRetailcrmInventoryAdminTest.php
new file mode 100644
index 0000000..5b14eed
--- /dev/null
+++ b/tests/admin/ModelRetailcrmInventoryAdminTest.php
@@ -0,0 +1,37 @@
+<?php
+
+require_once __DIR__ . '/../' . getenv('TEST_SUITE') . '/TestCase.php';
+
+class ModelRetailcrmInventoryAdminTest extends TestCase
+{
+    private $inventoriesModel;
+    private $apiClientMock;
+
+    public function setUp()
+    {
+        parent::setUp();
+
+        $this->inventoriesModel = $this->loadModel('extension/retailcrm/inventories');
+
+        $this->apiClientMock = $this->getMockBuilder(\RetailcrmProxy::class)
+            ->disableOriginalConstructor()
+            ->setMethods(array(
+                'storeInventoriesUpload',
+            ))
+            ->getMock();
+
+        self::$registry->set(\RetailcrmProxy::class, $this->apiClientMock);
+    }
+
+    public function testUploadToCrm()
+    {
+        $productModel = $this->loadModel('catalog/product');
+        $product = $productModel->getProducts([]);
+        $productSend = $this->inventoriesModel->uploadToCrm($product, $this->apiClientMock);
+        $product= $productSend[0][0];
+
+        $this->assertInternalType('array', $productSend);
+        $this->assertArrayHasKey('externalId', $product);
+        $this->assertArrayHasKey('stores', $product);
+    }
+}