add integration tests

Author: Thomas Grainger

.travis.yml

@@ -1,4 +1,7 @@
 language: python
+sudo: true
+services:
+  - docker
 python:
   - "2.7"
   - "3.5"

tests/conftest.py

@@ -0,0 +1,50 @@
+from __future__ import absolute_import
+
+import time
+
+import requests
+from requests import exceptions
+import docker
+import pytest
+from docker import utils as docker_utils
+
+
+@pytest.fixture(scope='session')
+def docker_client():
+    client_cfg = docker_utils.kwargs_from_env()
+    return docker.Client(version='1.21', **client_cfg)
+
+
+def wait_till_up(url, attempts):
+    for i in range(attempts-1):
+        try:
+            requests.get(url)
+            return
+        except exceptions.ConnectionError as e:
+            time.sleep(0.1 * 2**i)
+    else:
+        requests.get(url)
+
+
+@pytest.yield_fixture(scope='session')
+def registry(docker_client):
+    cli = docker_client
+    cli.pull('registry', '2')
+    cont = cli.create_container(
+        'registry:2',
+        ports=[5000],
+        host_config=cli.create_host_config(
+            port_bindings={
+                5000: 5000,
+            },
+        ),
+    )
+    try:
+        cli.start(cont)
+        wait_till_up('http://localhost:5000', 3)
+        try:
+            yield
+        finally:
+            cli.stop(cont)
+    finally:
+        cli.remove_container(cont, v=True, force=True)

tests/integration/__init__.py

@@ -0,0 +1,6 @@
+from docker_registry_client import BaseClient
+
+
+def test_base_client(registry):
+    cli = BaseClient('http://localhost:5000', api_version=2)
+    assert cli.catalog() == {'repositories': []}

tests/integration/test_base_client.py

@@ -4,6 +4,7 @@ envlist = py{27,35,36}, lint
 [testenv]
 commands = py.test {posargs}
 deps =
+    docker-py==1.10.6
     flexmock==0.10.2
     pytest==3.0.5