Fix file volume-cancel

Author: Fernando Ojeda

SoftLayer/managers/file.py

@@ -482,6 +482,9 @@ def cancel_file_volume(self, volume_id, reason='No longer needed', immediate=Fal
         file_volume = self.get_file_volume_details(
             volume_id,
             mask='mask[id,billingItem[id,hourlyFlag]]')
+
+        if 'billingItem' not in file_volume:
+            raise exceptions.SoftLayerError('The volume has already been canceled')
         billing_item_id = file_volume['billingItem']['id']
 
         if utils.lookup(file_volume, 'billingItem', 'hourlyFlag'):

tests/CLI/modules/file_tests.py

@@ -4,6 +4,7 @@
 
     :license: MIT, see LICENSE for more details.
 """
+from SoftLayer import exceptions
 from SoftLayer import testing
 
 import json
@@ -94,6 +95,31 @@ def test_volume_cancel(self):
         self.assert_called_with('SoftLayer_Billing_Item', 'cancelItem',
                                 args=(False, True, None))
 
+    def test_volume_cancel_with_billing_item(self):
+        result = self.run_command([
+            '--really', 'file', 'volume-cancel', '1234'])
+
+        self.assert_no_fail(result)
+        self.assertEqual('File volume with id 1234 has been marked'
+                         ' for cancellation\n', result.output)
+        self.assert_called_with('SoftLayer_Network_Storage', 'getObject')
+
+    def test_volume_cancel_without_billing_item(self):
+        p_mock = self.set_mock('SoftLayer_Network_Storage', 'getObject')
+        p_mock.return_value = {
+            "accountId": 1234,
+            "capacityGb": 20,
+            "createDate": "2015-04-29T06:55:55-07:00",
+            "id": 11111,
+            "nasType": "NAS",
+            "username": "SL01SEV307608_1"
+        }
+
+        result = self.run_command([
+            '--really', 'file', 'volume-cancel', '1234'])
+
+        self.assertIsInstance(result.exception, exceptions.SoftLayerError)
+
     def test_volume_detail(self):
         result = self.run_command(['file', 'volume-detail', '1234'])