Remove redundant single-socket select call

Clean up + use pytest-timeout
Signed-off-by: Joffrey F <joffrey@docker.com>

docker/types/daemon.py

@@ -59,5 +59,4 @@ class CancellableStream(object):
                 sock = sock_fp._sock
 
             sock.shutdown(socket.SHUT_RDWR)
-            sock.makefile().close()
             sock.close()

docker/utils/socket.py

@@ -22,8 +22,7 @@ def read(socket, n=4096):
 
     recoverable_errors = (errno.EINTR, errno.EDEADLK, errno.EWOULDBLOCK)
 
-    # wait for data to become available
-    if not isinstance(socket, NpipeSocket):
+    if six.PY3 and not isinstance(socket, NpipeSocket):
         select.select([socket], [], [])
 
     try:

test-requirements.txt

+coverage==3.7.1
+flake8==3.4.1
 mock==1.0.1
 pytest==2.9.1
-coverage==3.7.1
 pytest-cov==2.1.0
-flake8==3.4.1
+pytest-timeout==1.2.1

tests/integration/api_container_test.py

@@ -881,6 +881,7 @@ Line2'''
 
         assert logs == (snippet + '\n').encode(encoding='ascii')
 
+    @pytest.mark.timeout(5)
     def test_logs_streaming_and_follow_and_cancel(self):
         snippet = 'Flowering Nights (Sakuya Iyazoi)'
         container = self.client.create_container(
@@ -892,17 +893,11 @@ Line2'''
         logs = six.binary_type()
 
         generator = self.client.logs(id, stream=True, follow=True)
-
-        exit_timer = threading.Timer(3, os._exit, args=[1])
-        exit_timer.start()
-
         threading.Timer(1, generator.close).start()
 
         for chunk in generator:
             logs += chunk
 
-        exit_timer.cancel()
-
         assert logs == (snippet + '\n').encode(encoding='ascii')
 
     def test_logs_with_dict_instead_of_id(self):
@@ -1251,6 +1246,7 @@ class AttachContainerTest(BaseAPIIntegrationTest):
         output = self.client.attach(container, stream=False, logs=True)
         assert output == 'hello\n'.encode(encoding='ascii')
 
+    @pytest.mark.timeout(5)
     def test_attach_stream_and_cancel(self):
         container = self.client.create_container(
             BUSYBOX, 'sh -c "echo hello && sleep 60"',
@@ -1260,17 +1256,12 @@ class AttachContainerTest(BaseAPIIntegrationTest):
         self.client.start(container)
         output = self.client.attach(container, stream=True, logs=True)
 
-        exit_timer = threading.Timer(3, os._exit, args=[1])
-        exit_timer.start()
-
         threading.Timer(1, output.close).start()
 
         lines = []
         for line in output:
             lines.append(line)
 
-        exit_timer.cancel()
-
         assert len(lines) == 1
         assert lines[0] == 'hello\r\n'.encode(encoding='ascii')
 

tests/integration/models_containers_test.py

-import os
 import tempfile
 import threading
 
@@ -143,21 +142,17 @@ class ContainerCollectionTest(BaseIntegrationTest):
         assert logs[0] == b'hello\n'
         assert logs[1] == b'world\n'
 
+    @pytest.mark.timeout(5)
     def test_run_with_streamed_logs_and_cancel(self):
         client = docker.from_env(version=TEST_API_VERSION)
         out = client.containers.run(
             'alpine', 'sh -c "echo hello && echo world"', stream=True
         )
 
-        exit_timer = threading.Timer(3, os._exit, args=[1])
-        exit_timer.start()
-
         threading.Timer(1, out.close).start()
 
         logs = [line for line in out]
 
-        exit_timer.cancel()
-
         assert len(logs) == 2
         assert logs[0] == b'hello\n'
         assert logs[1] == b'world\n'