CI: Add tuntap to test

Sample run

```

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::   Test
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

:: [ 17:14:21 ] :: [   LOG    ] :: ip tuntap tests
:: [ 17:14:21 ] :: [  BEGIN   ] :: Running '/usr/bin/python3 /usr/bin/ip-tuntap-tests.py'
test_add_tap (__main__.IPTuntapTests) ... fopen /sys/class/net/ip6gre0/tun_flags: No such file or directory
fopen /sys/class/net/wlan0/tun_flags: No such file or directory
ok

ok
test_add_tun_user_group (__main__.IPTuntapTests) ... fopen /sys/class/net/ip6gre0/tun_flags: No such file or directory
ok

----------------------------------------------------------------------
Ran 3 tests in 0.049s

OK
:: [ 17:14:21 ] :: [   PASS   ] :: Command '/usr/bin/python3 /usr/bin/ip-tuntap-tests.py' (Expected 0, got 0)
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::   Duration: 0s
::   Assertions: 1 good, 0 bad
::   RESULT: PASS

```

tests/ip-tuntap-sanity-test/Makefile

@@ -0,0 +1,47 @@
+#!/bin/bash
+# SPDX-License-Identifier: LGPL-2.1+
+# ~~~
+#   runtest.sh of /CoreOS/iproute/Sanity/ip-tuntap-sanity-test
+#   Description: Test basic ip tuntap funcionality
+#
+#   Author: Susant Sahani <susant@redhat.com>
+#   Copyright (c) 2018 Red Hat, Inc.
+#~~~
+
+export TEST=/CoreOS/iproute/Sanity/ip-tuntap-sanity-test
+export TESTVERSION=1.0
+
+BUILT_FILES=
+
+FILES=$(METADATA) runtest.sh Makefile PURPOSE
+
+.PHONY: all install download clean
+
+run: $(FILES) build
+	./runtest.sh
+
+build: $(BUILT_FILES)
+	test -x runtest.sh || chmod a+x runtest.sh
+
+clean:
+	rm -f *~ $(BUILT_FILES)
+
+
+include /usr/share/rhts/lib/rhts-make.include
+
+$(METADATA): Makefile
+	@echo "Owner:           Susant Sahani <susant@redhat.com>" > $(METADATA)
+	@echo "Name:            $(TEST)" >> $(METADATA)
+	@echo "TestVersion:     $(TESTVERSION)" >> $(METADATA)
+	@echo "Path:            $(TEST_DIR)" >> $(METADATA)
+	@echo "Description:     Test basic ip tuntap funcionality" >> $(METADATA)
+	@echo "Type:            Sanity" >> $(METADATA)
+	@echo "TestTime:        15m" >> $(METADATA)
+	@echo "RunFor:          iproute" >> $(METADATA)
+	@echo "Requires:        iproute" >> $(METADATA)
+	@echo "Priority:        Normal" >> $(METADATA)
+	@echo "License:         GPLv2" >> $(METADATA)
+	@echo "Confidential:    no" >> $(METADATA)
+	@echo "Destructive:     no" >> $(METADATA)
+
+	rhts-lint $(METADATA)

tests/ip-tuntap-sanity-test/PURPOSE

@@ -0,0 +1,3 @@
+PURPOSE of /CoreOS/iproute/Sanity/ip-tuntap-sanity-test
+Description: Test basic ip tuntap funcionality
+Author: Susant Sahani <susant@redhat.com>

tests/ip-tuntap-sanity-test/ip-tuntap-tests.py

@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: LGPL-2.1+
+# ~~~
+#   runtest.sh of /CoreOS/iproute/Sanity/ip-tuntap-sanity-test
+#   Description: Test basic ip tuntap funcionality
+#
+#   Author: Susant Sahani <susant@redhat.com>
+#   Copyright (c) 2018 Red Hat, Inc.
+# ~~~
+
+import errno
+import os
+import sys
+import time
+import unittest
+import subprocess
+import signal
+import shutil
+
+def setUpModule():
+
+    if shutil.which('ip') is None:
+        raise OSError(errno.ENOENT, 'ip not found')
+
+class IPLinkUtilities():
+
+    def link_exists(self, link):
+        self.assertTrue(os.path.exists(os.path.join('/sys/class/net', link)))
+
+class IPTuntapTests(unittest.TestCase, IPLinkUtilities):
+
+    def test_add_tap(self):
+
+        subprocess.check_output(['ip', 'tuntap', 'add', 'name', 'tap-test', 'mode', 'tap'])
+        self.link_exists('tap-test')
+
+        output=subprocess.check_output(['ip', 'tuntap', 'show', 'dev', 'tap-test']).rstrip().decode('utf-8')
+        self.assertRegex(output, "tap-test: tap")
+
+        subprocess.check_output(['ip', 'link', 'del', 'tap-test'])
+
+    def test_add_tun(self):
+
+        subprocess.check_output(['ip', 'tuntap', 'add', 'name', 'tun-test', 'mode', 'tun'])
+        self.link_exists('tun-test')
+
+        output=subprocess.check_output(['ip', 'tuntap', 'show', 'dev', 'tun-test']).rstrip().decode('utf-8')
+        self.assertRegex(output, "tun-test: tun")
+
+        subprocess.check_output(['ip', 'link', 'del', 'tun-test'])
+
+    def test_add_tun_user_group(self):
+
+        subprocess.check_output(['ip', 'tuntap', 'add', 'name', 'tun-test', 'mode', 'tun', 'user', 'root', 'group', 'root'])
+        self.link_exists('tun-test')
+
+        output=subprocess.check_output(['ip', 'tuntap', 'show', 'dev', 'tun-test']).rstrip().decode('utf-8')
+        self.assertRegex(output, "tun-test: tun")
+        self.assertRegex(output, "user 0 group 0")
+
+        subprocess.check_output(['ip', 'link', 'del', 'tun-test'])
+
+if __name__ == '__main__':
+    unittest.main(testRunner=unittest.TextTestRunner(stream=sys.stdout,
+                                                     verbosity=2))

tests/ip-tuntap-sanity-test/runtest.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+# SPDX-License-Identifier: LGPL-2.1+
+# ~~~
+#   runtest.sh of /CoreOS/iproute/Sanity/ip-tuntap-sanity-test
+#   Description: Test basic ip tuntap funcionality
+#
+#   Author: Susant Sahani <susant@redhat.com>
+#   Copyright (c) 2018 Red Hat, Inc.
+#~~~
+
+# Include Beaker environment
+. /usr/share/beakerlib/beakerlib.sh || exit 1
+
+PACKAGE="iproute"
+
+rlJournalStart
+    rlPhaseStartSetup
+        rlAssertRpm $PACKAGE
+        rlRun "cp ip-tuntap-tests.py /usr/bin"
+    rlPhaseEnd
+
+    rlPhaseStartTest
+        rlLog "ip tuntap tests"
+        rlRun "/usr/bin/python3 /usr/bin/ip-tuntap-tests.py"
+    rlPhaseEnd
+
+    rlPhaseStartCleanup
+        rlRun "rm /usr/bin/ip-tuntap-tests.py"
+        rlLog "ip tuntap tests done"
+    rlPhaseEnd
+rlJournalPrintText
+rlJournalEnd
+
+rlGetTestState

tests/tests.yml

@@ -15,6 +15,7 @@
     - ip-address-label-sanity-test
     - ip-fou-sanity-test
     - ip-token-sanity-test
+    - ip-tuntap-sanity-test
     required_packages:
     - iproute
     - bridge-utils