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From 675af6905b424f2a927e4737a53f9b844e0cd9cc Mon Sep 17 00:00:00 2001
From: Michal Sekletar <msekleta@redhat.com>
Date: Wed, 15 Feb 2017 12:40:52 +0100
Subject: [PATCH] tests: add new test for issue #518
(cherry picked from commit 123d672e85d0c52ff7cf81997d4910990da409c1)
Related: #1404657, #1471230
---
Makefile.am | 3 +-
test/test-exec-deserialization.py | 192 ++++++++++++++++++++++++++++++
2 files changed, 194 insertions(+), 1 deletion(-)
create mode 100755 test/test-exec-deserialization.py
diff --git a/Makefile.am b/Makefile.am
index f06bc29c25..c4a96e1fd1 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5711,7 +5711,8 @@ EXTRA_DIST += \
src/network/networkd-network-gperf.gperf \
src/network/networkd-netdev-gperf.gperf \
units/systemd-networkd.service.in \
- units/systemd-networkd-wait-online.service.in
+ units/systemd-networkd-wait-online.service.in \
+ test/test-exec-deserialization.py
CLEANFILES += \
src/network/networkd-network-gperf.c \
diff --git a/test/test-exec-deserialization.py b/test/test-exec-deserialization.py
new file mode 100755
index 0000000000..b974b1c133
--- /dev/null
+++ b/test/test-exec-deserialization.py
@@ -0,0 +1,192 @@
+#!/usr/bin/python3
+
+#
+# Copyright 2017 Michal Sekletar <msekleta@redhat.com>
+#
+# systemd is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
+# ATTENTION: This uses the *installed* systemd, not the one from the built
+# source tree.
+
+import unittest
+import time
+import os
+import tempfile
+import subprocess
+
+from enum import Enum
+
+class UnitFileChange(Enum):
+ NO_CHANGE = 0
+ LINES_SWAPPED = 1
+ COMMAND_ADDED_BEFORE = 2
+ COMMAND_ADDED_AFTER = 3
+ COMMAND_INTERLEAVED = 4
+ REMOVAL = 5
+
+class ExecutionResumeTest(unittest.TestCase):
+ def setUp(self):
+ self.unit = 'test-issue-518.service'
+ self.unitfile_path = '/run/systemd/system/{0}'.format(self.unit)
+ self.output_file = tempfile.mktemp()
+ self.unit_files = {}
+
+ unit_file_content = '''
+ [Service]
+ Type=oneshot
+ ExecStart=/bin/sleep 2
+ ExecStart=/bin/bash -c "echo foo >> {0}"
+ '''.format(self.output_file)
+ self.unit_files[UnitFileChange.NO_CHANGE] = unit_file_content
+
+ unit_file_content = '''
+ [Service]
+ Type=oneshot
+ ExecStart=/bin/bash -c "echo foo >> {0}"
+ ExecStart=/bin/sleep 2
+ '''.format(self.output_file)
+ self.unit_files[UnitFileChange.LINES_SWAPPED] = unit_file_content
+
+ unit_file_content = '''
+ [Service]
+ Type=oneshot
+ ExecStart=/bin/bash -c "echo bar >> {0}"
+ ExecStart=/bin/sleep 2
+ ExecStart=/bin/bash -c "echo foo >> {0}"
+ '''.format(self.output_file)
+ self.unit_files[UnitFileChange.COMMAND_ADDED_BEFORE] = unit_file_content
+
+ unit_file_content = '''
+ [Service]
+ Type=oneshot
+ ExecStart=/bin/sleep 2
+ ExecStart=/bin/bash -c "echo foo >> {0}"
+ ExecStart=/bin/bash -c "echo bar >> {0}"
+ '''.format(self.output_file)
+ self.unit_files[UnitFileChange.COMMAND_ADDED_AFTER] = unit_file_content
+
+ unit_file_content = '''
+ [Service]
+ Type=oneshot
+ ExecStart=/bin/bash -c "echo baz >> {0}"
+ ExecStart=/bin/sleep 2
+ ExecStart=/bin/bash -c "echo foo >> {0}"
+ ExecStart=/bin/bash -c "echo bar >> {0}"
+ '''.format(self.output_file)
+ self.unit_files[UnitFileChange.COMMAND_INTERLEAVED] = unit_file_content
+
+ unit_file_content = '''
+ [Service]
+ Type=oneshot
+ ExecStart=/bin/bash -c "echo bar >> {0}"
+ ExecStart=/bin/bash -c "echo baz >> {0}"
+ '''.format(self.output_file)
+ self.unit_files[UnitFileChange.REMOVAL] = unit_file_content
+
+ def reload(self):
+ subprocess.check_call(['systemctl', 'daemon-reload'])
+
+ def write_unit_file(self, unit_file_change):
+ if not isinstance(unit_file_change, UnitFileChange):
+ raise ValueError('Unknown unit file change')
+
+ content = self.unit_files[unit_file_change]
+
+ with open(self.unitfile_path, 'w') as f:
+ f.write(content)
+
+ self.reload()
+
+ def check_output(self, expected_output):
+ try:
+ with open(self.output_file, 'r') as log:
+ output = log.read()
+ except IOError:
+ self.fail()
+
+ self.assertEqual(output, expected_output)
+
+ def setup_unit(self):
+ self.write_unit_file(UnitFileChange.NO_CHANGE)
+ subprocess.check_call(['systemctl', '--job-mode=replace', '--no-block', 'start', self.unit])
+
+ def test_no_change(self):
+ expected_output = 'foo\n'
+
+ self.setup_unit()
+ self.reload()
+ time.sleep(4)
+
+ self.check_output(expected_output)
+
+ def test_swapped(self):
+ expected_output = ''
+
+ self.setup_unit()
+ self.write_unit_file(UnitFileChange.LINES_SWAPPED)
+ self.reload()
+ time.sleep(4)
+
+ self.assertTrue(not os.path.exists(self.output_file))
+
+ def test_added_before(self):
+ expected_output = 'foo\n'
+
+ self.setup_unit()
+ self.write_unit_file(UnitFileChange.COMMAND_ADDED_BEFORE)
+ self.reload()
+ time.sleep(4)
+
+ self.check_output(expected_output)
+
+ def test_added_after(self):
+ expected_output = 'foo\nbar\n'
+
+ self.setup_unit()
+ self.write_unit_file(UnitFileChange.COMMAND_ADDED_AFTER)
+ self.reload()
+ time.sleep(4)
+
+ self.check_output(expected_output)
+
+ def test_interleaved(self):
+ expected_output = 'foo\nbar\n'
+
+ self.setup_unit()
+ self.write_unit_file(UnitFileChange.COMMAND_INTERLEAVED)
+ self.reload()
+ time.sleep(4)
+
+ self.check_output(expected_output)
+
+ def test_removal(self):
+ self.setup_unit()
+ self.write_unit_file(UnitFileChange.REMOVAL)
+ self.reload()
+ time.sleep(4)
+
+ self.assertTrue(not os.path.exists(self.output_file))
+
+ def tearDown(self):
+ for f in [self.output_file, self.unitfile_path]:
+ try:
+ os.remove(f)
+ except OSError:
+ # ignore error if log file doesn't exist
+ pass
+
+ self.reload()
+
+if __name__ == '__main__':
+ unittest.main()