magento/graphql-ce#975: [Test coverage] deleteCustomerAddress mutation.

Author: atwixfirster

dev/tests/api-functional/testsuite/Magento/GraphQl/Customer/DeleteCustomerAddressTest.php

@@ -224,6 +224,28 @@ public function testDeleteAnotherCustomerAddress()
         $this->graphQlMutation($mutation, [], '', $this->getCustomerAuthHeaders($userName, $password));
     }
 
+    /**
+     * @magentoApiDataFixture Magento/Customer/_files/customer.php
+     * @magentoApiDataFixture Magento/Customer/_files/customer_two_addresses.php
+     *
+     * @expectedException Exception
+     * @expectedExceptionMessage Address "id" value should be specified
+     */
+    public function testDeleteCustomerAddressWithZeroAddressEntityId()
+    {
+        $userName = '[email protected]';
+        $password = 'password';
+        $addressId = 0;
+
+        $mutation
+            = <<<MUTATION
+mutation {
+  deleteCustomerAddress(id: {$addressId})
+}
+MUTATION;
+        $this->graphQlMutation($mutation, [], '', $this->getCustomerAuthHeaders($userName, $password));
+    }
+
     /**
      * @magentoApiDataFixture Magento/Customer/_files/customer.php
      * @magentoApiDataFixture Magento/Customer/_files/customer_two_addresses.php