Fix system tests running locally

.scrutinizer.yml

@@ -11,6 +11,8 @@ build:
  python: 3.6.0
  postgresql: false
  redis: false
+ variables:
+ with_sudo: true
  docker:
  remote_engine: true
  cache:

tests/test_system/test_alpine.py

@@ -1,41 +1,44 @@
 """Test connectivity between to hosts in Mininet."""
+import os
 from unittest import TestCase
 
 import pexpect
 
 CONTAINER = 'kytos_tests'
 IMAGE = 'alpine'
 PROMPT = '/ # '
+WITH_SUDO = os.environ.get('with_sudo', True)
 
 
 class TestAlpine(TestCase):
  """Test the alpine container."""
 
+ @classmethod
+ def execute(cls, command, expected=None, timeout=60, with_sudo=True):
+ if with_sudo:
+ command = 'sudo '+ command
+ cls._kytos = pexpect.spawn(command)
+ if expected is not None:
+ cls._kytos.expect(expected, timeout=timeout)
+
  @classmethod
  def setUpClass(cls):
  """Setup the alpine container.
 
  Download the alpine image and starts a new container.
  """
- # Start the docker daemon
-# cls._kytos = pexpect.spawn(f'sudo dockerd')
- cls._kytos = pexpect.spawn(f'sudo service docker start')
- cls._kytos.expect(pexpect.EOF)
+ cls.execute('dockerd', with_sudo=True)
+ cls.execute('service docker start', with_sudo=True)
 
  # Download the alpine container
- cls._kytos = pexpect.spawn(f'sudo docker pull alpine')
- expected = ['Status: Downloaded newer image for alpine:latest']
- cls._kytos.expect(expected, timeout=120)
+ cls.execute('docker pull alpine', 'alpine:latest', with_sudo=WITH_SUDO)
 
  # Verify whether the alpine image is installed.
- cls._kytos = pexpect.spawn(f'sudo docker images')
- cls._kytos.expect('alpine', timeout=60)
+ cls.execute('docker images', 'alpine')
 
  # Start the alpine container to run the tests
- cls._kytos = pexpect.spawn(
- f'sudo docker run --rm -it --privileged --name {CONTAINER} {IMAGE}'
- )
- cls._kytos.expect(PROMPT, timeout=60)
+ cmd = f'docker run --rm -it --name {CONTAINER} {IMAGE}'
+ cls.execute(cmd, PROMPT, with_sudo=WITH_SUDO)
 
  def test0000_uname_a(self):
  """Test expected 'uname -a' command using the container."""
@@ -47,6 +50,9 @@ def test0000_uname_a(self):
  def tearDownClass(cls):
  """Stop container."""
  bash = pexpect.spawn('/bin/bash')
- bash.sendline(f'sudo docker kill {CONTAINER} && exit')
+ command = f'docker kill {CONTAINER} && exit'
+ if WITH_SUDO:
+ command = 'sudo '+ command
+ bash.sendline(command)
  bash.expect(f'\r\n{CONTAINER}\r\n', timeout=120)
  bash.wait()