Error handling in ImageCollection.load

Signed-off-by: Joffrey F <joffrey@docker.com>

docker/errors.py

@@ -144,6 +144,10 @@ class BuildError(Exception):
     pass
 
 
+class ImageLoadError(DockerException):
+    pass
+
+
 def create_unexpected_kwargs_error(name, kwargs):
     quoted_kwargs = ["'{}'".format(k) for k in sorted(kwargs)]
     text = ["{}() ".format(name)]

docker/models/images.py

@@ -3,7 +3,7 @@ import re
 import six
 
 from ..api import APIClient
-from ..errors import BuildError
+from ..errors import BuildError, ImageLoadError
 from ..utils.json_stream import json_stream
 from .resource import Collection, Model
 
@@ -258,6 +258,9 @@ class ImageCollection(Collection):
                 if match:
                     image_id = match.group(2)
                     images.append(image_id)
+            if 'error' in chunk:
+                raise ImageLoadError(chunk['error'])
+
         return [self.get(i) for i in images]
 
     def pull(self, name, tag=None, **kwargs):

tests/integration/models_images_test.py

@@ -71,6 +71,11 @@ class ImageCollectionTest(BaseIntegrationTest):
         image = client.images.pull('alpine', tag='3.3')
         assert 'alpine:3.3' in image.attrs['RepoTags']
 
+    def test_load_error(self):
+        client = docker.from_env(version=TEST_API_VERSION)
+        with pytest.raises(docker.errors.ImageLoadError):
+            client.images.load('abc')
+
 
 class ImageTest(BaseIntegrationTest):