Unit test for Client.update_container method

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

tests/unit/container_test.py

@@ -1407,3 +1407,21 @@ class ContainerTest(DockerClientTest):
             params={'ps_args': 'waux'},
             timeout=DEFAULT_TIMEOUT_SECONDS
         )
+
+    @requires_api_version('1.22')
+    def test_container_update(self):
+        self.client.update_container(
+            fake_api.FAKE_CONTAINER_ID, mem_limit='2k', cpu_shares=124,
+            blkio_weight=345
+        )
+        args = fake_request.call_args
+        self.assertEqual(
+            args[0][1], url_prefix + 'containers/3cc2351ab11b/update'
+        )
+        self.assertEqual(
+            json.loads(args[1]['data']),
+            {'Memory': 2 * 1024, 'CpuShares': 124, 'BlkioWeight': 345}
+        )
+        self.assertEqual(
+            args[1]['headers']['Content-Type'], 'application/json'
+        )

tests/unit/fake_api.py

@@ -441,6 +441,11 @@ def get_fake_volume():
 def fake_remove_volume():
     return 204, None
 
+
+def post_fake_update_container():
+    return 200, {'Warnings': []}
+
+
 # Maps real api url to fake response callback
 prefix = 'http+docker://localunixsocket'
 fake_responses = {
@@ -478,6 +483,8 @@ fake_responses = {
     get_fake_diff,
     '{1}/{0}/containers/3cc2351ab11b/export'.format(CURRENT_VERSION, prefix):
     get_fake_export,
+    '{1}/{0}/containers/3cc2351ab11b/update'.format(CURRENT_VERSION, prefix):
+    post_fake_update_container,
     '{1}/{0}/containers/3cc2351ab11b/exec'.format(CURRENT_VERSION, prefix):
     post_fake_exec_create,
     '{1}/{0}/exec/d5d177f121dc/start'.format(CURRENT_VERSION, prefix):