Remove extra calls to docker server.

Fix broken integration tests

Signed-off-by: Daniel Nephin <dnephin@gmail.com>

fig/container.py

@@ -97,11 +97,8 @@ class Container(object):
     @property
     def environment(self):
         self.inspect_if_not_inspected()
-        out = {}
-        for var in self.dictionary.get('Config', {}).get('Env', []):
-            k, v = var.split('=', 1)
-            out[k] = v
-        return out
+        return dict(var.split("=", 1)
+                    for var in self.dictionary.get('Config', {}).get('Env', []))
 
     @property
     def is_running(self):
@@ -132,6 +129,7 @@ class Container(object):
 
     def inspect(self):
         self.dictionary = self.client.inspect_container(self.id)
+        self.has_been_inspected = True
         return self.dictionary
 
     def links(self):

fig/project.py

@@ -1,6 +1,7 @@
 from __future__ import unicode_literals
 from __future__ import absolute_import
 import logging
+
 from .service import Service
 from .container import Container
 from .packages.docker.errors import APIError
@@ -179,12 +180,11 @@ class Project(object):
         for service in self.get_services(service_names):
             service.remove_stopped(**options)
 
-    def containers(self, service_names=None, *args, **kwargs):
-        l = []
-        for service in self.get_services(service_names):
-            for container in service.containers(*args, **kwargs):
-                l.append(container)
-        return l
+    def containers(self, service_names=None, stopped=False, one_off=False):
+        return [Container.from_ps(self.client, container)
+                for container in self.client.containers(all=stopped)
+                for service in self.get_services(service_names)
+                if service.has_container(container, one_off=one_off)]
 
     def _inject_links(self, acc, service):
         linked_names = service.get_linked_names()

fig/service.py

@@ -65,15 +65,17 @@ class Service(object):
         self.options = options
 
     def containers(self, stopped=False, one_off=False):
-        l = []
-        for container in self.client.containers(all=stopped):
-            name = get_container_name(container)
-            if not name or not is_valid_name(name, one_off):
-                continue
-            project, name, number = parse_name(name)
-            if project == self.project and name == self.name:
-                l.append(Container.from_ps(self.client, container))
-        return l
+        return [Container.from_ps(self.client, container)
+                for container in self.client.containers(all=stopped)
+                if self.has_container(container, one_off=one_off)]
+
+    def has_container(self, container, one_off=False):
+        """Return True if `container` was created to fulfill this service."""
+        name = get_container_name(container)
+        if not name or not is_valid_name(name, one_off):
+            return False
+        project, name, number = parse_name(name)
+        return project == self.project and name == self.name
 
     def start(self, **options):
         for c in self.containers(stopped=True):

tests/integration/project_test.py

@@ -108,8 +108,9 @@ class ProjectTest(DockerClientTestCase):
         self.assertEqual(len(project.containers()), 2)
 
         db_container = [c for c in project.containers() if 'db' in c.name][0]
-        self.assertNotEqual(c.id, old_db_id)
-        self.assertEqual(c.inspect()['Volumes']['/var/db'], db_volume_path)
+        self.assertNotEqual(db_container.id, old_db_id)
+        self.assertEqual(db_container.inspect()['Volumes']['/var/db'],
+                         db_volume_path)
 
         project.kill()
         project.remove_stopped()
@@ -130,8 +131,9 @@ class ProjectTest(DockerClientTestCase):
         self.assertEqual(len(project.containers()), 2)
 
         db_container = [c for c in project.containers() if 'db' in c.name][0]
-        self.assertEqual(c.id, old_db_id)
-        self.assertEqual(c.inspect()['Volumes']['/var/db'], db_volume_path)
+        self.assertEqual(db_container.id, old_db_id)
+        self.assertEqual(db_container.inspect()['Volumes']['/var/db'],
+                         db_volume_path)
 
         project.kill()
         project.remove_stopped()
@@ -158,8 +160,9 @@ class ProjectTest(DockerClientTestCase):
         self.assertEqual(len(new_containers), 2)
 
         db_container = [c for c in new_containers if 'db' in c.name][0]
-        self.assertEqual(c.id, old_db_id)
-        self.assertEqual(c.inspect()['Volumes']['/var/db'], db_volume_path)
+        self.assertEqual(db_container.id, old_db_id)
+        self.assertEqual(db_container.inspect()['Volumes']['/var/db'],
+                         db_volume_path)
 
         project.kill()
         project.remove_stopped()

tests/integration/service_test.py

@@ -1,11 +1,13 @@
 from __future__ import unicode_literals
 from __future__ import absolute_import
+import os
+
 from fig import Service
 from fig.service import CannotBeScaledError
 from fig.container import Container
 from fig.packages.docker.errors import APIError
 from .testcases import DockerClientTestCase
-import os
+
 
 class ServiceTest(DockerClientTestCase):
     def test_containers(self):
@@ -143,7 +145,9 @@ class ServiceTest(DockerClientTestCase):
 
         self.assertEqual(len(self.client.containers(all=True)), num_containers_before)
         self.assertNotEqual(old_container.id, new_container.id)
-        self.assertRaises(APIError, lambda: self.client.inspect_container(intermediate_container.id))
+        self.assertRaises(APIError,
+                          self.client.inspect_container,
+                          intermediate_container.id)
 
     def test_recreate_containers_when_containers_are_stopped(self):
         service = self.create_service(

tests/unit/container_test.py

@@ -1,7 +1,12 @@
 from __future__ import unicode_literals
 from .. import unittest
+
+import mock
+from fig.packages import docker
+
 from fig.container import Container
 
+
 class ContainerTest(unittest.TestCase):
     def test_from_ps(self):
         container = Container.from_ps(None, {
@@ -67,3 +72,16 @@ class ContainerTest(unittest.TestCase):
             "Names":["/figtest_db_1"]
         }, has_been_inspected=True)
         self.assertEqual(container.name_without_project, "db_1")
+
+    def test_inspect_if_not_inspected(self):
+        mock_client = mock.create_autospec(docker.Client)
+        container = Container(mock_client, dict(Id="the_id"))
+
+        container.inspect_if_not_inspected()
+        mock_client.inspect_container.assert_called_once_with("the_id")
+        self.assertEqual(container.dictionary,
+                         mock_client.inspect_container.return_value)
+        self.assertTrue(container.has_been_inspected)
+
+        container.inspect_if_not_inspected()
+        self.assertEqual(mock_client.inspect_container.call_count, 1)