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diff -rup cloud-init-17.1.orig/cloudinit/net/sysconfig.py cloud-init-17.1/cloudinit/net/sysconfig.py
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--- cloud-init-17.1.orig/cloudinit/net/sysconfig.py 2018-03-26 19:22:35.693111559 +0200
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+++ cloud-init-17.1/cloudinit/net/sysconfig.py 2018-03-26 23:47:41.424803588 +0200
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@@ -586,7 +586,17 @@ class Renderer(renderer.Renderer):
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# always write /etc/sysconfig/network configuration
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sysconfig_path = util.target_path(target, "etc/sysconfig/network")
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- netcfg = [_make_header(), 'NETWORKING=yes']
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+ # Make sure that existing lines, other than overriding ones, remain
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+ netcfg = []
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+ for line in util.load_file(sysconfig_path, quiet=True).split('\n'):
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+ if 'cloud-init' in line:
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+ break
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+ if not line.startswith(('NETWORKING=',
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+ 'IPV6_AUTOCONF=',
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+ 'NETWORKING_IPV6=')):
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+ netcfg.append(line)
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+ # Now generate the cloud-init portion of sysconfig/network
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+ netcfg.extend([_make_header(), 'NETWORKING=yes'])
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if network_state.use_ipv6:
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netcfg.append('NETWORKING_IPV6=yes')
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netcfg.append('IPV6_AUTOCONF=no')
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diff -rup cloud-init-17.1.orig/tests/unittests/test_distros/test_netconfig.py cloud-init-17.1/tests/unittests/test_distros/test_netconfig.py
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--- cloud-init-17.1.orig/tests/unittests/test_distros/test_netconfig.py 2018-03-26 19:22:35.717111557 +0200
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+++ cloud-init-17.1/tests/unittests/test_distros/test_netconfig.py 2018-03-26 22:08:25.008717651 +0200
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@@ -384,6 +384,82 @@ hn0: flags=8843
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buf.write(content)
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write_bufs[filename] = buf
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+ def replace_load_file(filename, *args, **kwargs):
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+ if filename == '/etc/sysconfig/network':
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+ return 'TEST=yes\nTEST2=yes'
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+ else:
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+ return ''
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+
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+ with ExitStack() as mocks:
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+ mocks.enter_context(
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+ mock.patch.object(util, 'write_file', replace_write))
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+ mocks.enter_context(
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+ mock.patch.object(util, 'load_file', replace_load_file))
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+ mocks.enter_context(
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+ mock.patch.object(os.path, 'isfile', return_value=False))
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+
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+ rh_distro.apply_network(BASE_NET_CFG, False)
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+
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+ self.assertEqual(len(write_bufs), 4)
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+ self.assertIn('/etc/sysconfig/network-scripts/ifcfg-lo',
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+ write_bufs)
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+ write_buf = write_bufs['/etc/sysconfig/network-scripts/ifcfg-lo']
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+ expected_buf = '''
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+DEVICE="lo"
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+ONBOOT=yes
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+'''
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+ self.assertCfgEquals(expected_buf, str(write_buf))
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+ self.assertEqual(write_buf.mode, 0o644)
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+
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+ self.assertIn('/etc/sysconfig/network-scripts/ifcfg-eth0',
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+ write_bufs)
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+ write_buf = write_bufs['/etc/sysconfig/network-scripts/ifcfg-eth0']
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+ expected_buf = '''
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+DEVICE="eth0"
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+BOOTPROTO="static"
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+NETMASK="255.255.255.0"
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+IPADDR="192.168.1.5"
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+ONBOOT=yes
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+GATEWAY="192.168.1.254"
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+BROADCAST="192.168.1.0"
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+'''
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+ self.assertCfgEquals(expected_buf, str(write_buf))
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+ self.assertEqual(write_buf.mode, 0o644)
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+
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+ self.assertIn('/etc/sysconfig/network-scripts/ifcfg-eth1',
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+ write_bufs)
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+ write_buf = write_bufs['/etc/sysconfig/network-scripts/ifcfg-eth1']
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+ expected_buf = '''
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+DEVICE="eth1"
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+BOOTPROTO="dhcp"
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+ONBOOT=yes
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+'''
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+ self.assertCfgEquals(expected_buf, str(write_buf))
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+ self.assertEqual(write_buf.mode, 0o644)
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+
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+ self.assertIn('/etc/sysconfig/network', write_bufs)
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+ write_buf = write_bufs['/etc/sysconfig/network']
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+ expected_buf = '''
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+# Created by cloud-init v. 0.7
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+NETWORKING=yes
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+TEST=yes
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+TEST2=yes
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+'''
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+ self.assertCfgEquals(expected_buf, str(write_buf))
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+ self.assertEqual(write_buf.mode, 0o644)
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+
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+ def test_simple_write_rh_no_extra(self):
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+ rh_distro = self._get_distro('rhel')
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+
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+ write_bufs = {}
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+
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+ def replace_write(filename, content, mode=0o644, omode="wb"):
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+ buf = WriteBuffer()
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+ buf.mode = mode
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+ buf.omode = omode
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+ buf.write(content)
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+ write_bufs[filename] = buf
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+
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with ExitStack() as mocks:
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mocks.enter_context(
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mock.patch.object(util, 'write_file', replace_write))
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@@ -453,6 +529,12 @@ NETWORKING=yes
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buf.write(content)
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write_bufs[filename] = buf
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+ def replace_load_file(filename, *args, **kwargs):
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+ if filename == '/etc/sysconfig/network':
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+ return 'TEST=yes\nTEST2=yes'
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+ else:
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+ return ''
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+
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with ExitStack() as mocks:
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# sysconfig availability checks
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mocks.enter_context(
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@@ -460,7 +542,7 @@ NETWORKING=yes
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mocks.enter_context(
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mock.patch.object(util, 'write_file', replace_write))
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mocks.enter_context(
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- mock.patch.object(util, 'load_file', return_value=''))
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+ mock.patch.object(util, 'load_file', replace_load_file))
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mocks.enter_context(
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mock.patch.object(os.path, 'isfile', return_value=True))
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@@ -509,6 +591,8 @@ USERCTL=no
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expected_buf = '''
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# Created by cloud-init v. 0.7
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NETWORKING=yes
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+TEST=yes
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+TEST2=yes
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'''
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self.assertCfgEquals(expected_buf, str(write_buf))
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self.assertEqual(write_buf.mode, 0o644)
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@@ -525,13 +609,20 @@ NETWORKING=yes
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buf.write(content)
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write_bufs[filename] = buf
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+ def replace_load_file(filename, *args, **kwargs):
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+ if filename == '/etc/sysconfig/network':
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+ return 'TEST=yes\nTEST2=yes'
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+ else:
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+ return ''
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+
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with ExitStack() as mocks:
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mocks.enter_context(
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mock.patch.object(util, 'write_file', replace_write))
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mocks.enter_context(
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- mock.patch.object(util, 'load_file', return_value=''))
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+ mock.patch.object(util, 'load_file', replace_load_file))
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mocks.enter_context(
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mock.patch.object(os.path, 'isfile', return_value=False))
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+
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rh_distro.apply_network(BASE_NET_CFG_IPV6, False)
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self.assertEqual(len(write_bufs), 4)
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@@ -587,6 +678,8 @@ IPV6_DEFAULTGW="2607:f0d0:1002:0011::1"
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NETWORKING=yes
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NETWORKING_IPV6=yes
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IPV6_AUTOCONF=no
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+TEST=yes
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+TEST2=yes
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'''
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self.assertCfgEquals(expected_buf, str(write_buf))
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self.assertEqual(write_buf.mode, 0o644)
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@@ -604,13 +697,19 @@ IPV6_AUTOCONF=no
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buf.write(content)
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write_bufs[filename] = buf
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+ def replace_load_file(filename, *args, **kwargs):
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+ if filename == '/etc/sysconfig/network':
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+ return 'TEST=yes\nTEST2=yes'
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+ else:
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+ return ''
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+
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with ExitStack() as mocks:
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mocks.enter_context(
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mock.patch.object(util, 'which', return_value=True))
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mocks.enter_context(
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mock.patch.object(util, 'write_file', replace_write))
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mocks.enter_context(
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- mock.patch.object(util, 'load_file', return_value=''))
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+ mock.patch.object(util, 'load_file', replace_load_file))
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mocks.enter_context(
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mock.patch.object(os.path, 'isfile', return_value=True))
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@@ -658,6 +757,8 @@ USERCTL=no
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NETWORKING=yes
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NETWORKING_IPV6=yes
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IPV6_AUTOCONF=no
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+TEST=yes
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+TEST2=yes
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'''
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self.assertCfgEquals(expected_buf, str(write_buf))
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self.assertEqual(write_buf.mode, 0o644)
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