tests/topotests: add bgp_instance_del_test to test for crashes seen during bgp instance deletes

Signed-off-by: Lou Berger <lberger@labn.net>

tests/topotests/bgp_instance_del_test/ce1

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+../bgp_l3vpn_to_bgp_vrf/ce1

tests/topotests/bgp_instance_del_test/ce2

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+../bgp_l3vpn_to_bgp_vrf/ce2

tests/topotests/bgp_instance_del_test/ce3

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+../bgp_l3vpn_to_bgp_vrf/ce3

tests/topotests/bgp_instance_del_test/ce4

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+../bgp_l3vpn_to_bgp_vrf/ce4

tests/topotests/bgp_instance_del_test/customize.py

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+../bgp_l3vpn_to_bgp_vrf/customize.py

tests/topotests/bgp_instance_del_test/r1

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+../bgp_l3vpn_to_bgp_vrf/r1

tests/topotests/bgp_instance_del_test/r2

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+../bgp_l3vpn_to_bgp_vrf/r2

tests/topotests/bgp_instance_del_test/r3

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+../bgp_l3vpn_to_bgp_vrf/r3

tests/topotests/bgp_instance_del_test/r4

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+../bgp_l3vpn_to_bgp_vrf/r4

tests/topotests/bgp_instance_del_test/scripts

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+../bgp_l3vpn_to_bgp_vrf/scripts

tests/topotests/bgp_instance_del_test/test_bgp_instance_del_test.py

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+#!/usr/bin/env python
+
+#
+# Part of NetDEF Topology Tests
+#
+# Copyright (c) 2018, LabN Consulting, L.L.C.
+# Authored by Lou Berger <lberger@labn.net>
+#
+# Permission to use, copy, modify, and/or distribute this software
+# for any purpose with or without fee is hereby granted, provided
+# that the above copyright notice and this permission notice appear
+# in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
+# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+# OF THIS SOFTWARE.
+#
+
+import os
+import sys
+import pytest
+
+sys.path.append(os.path.join(os.path.dirname(os.path.realpath(__file__)), '../'))
+
+from lib.ltemplate import *
+
+def test_check_linux_vrf():
+    CliOnFail = None
+    # For debugging, uncomment the next line
+    #CliOnFail = 'tgen.mininet_cli'
+    CheckFunc = 'ltemplateVersionCheck(\'4.1\', iproute2=\'4.9\')'
+    #uncomment next line to start cli *before* script is run
+    #CheckFunc = 'ltemplateVersionCheck(\'4.1\', cli=True, iproute2=\'4.9\')'
+    ltemplateTest('scripts/check_linux_vrf.py', False, CliOnFail, CheckFunc)
+
+def test_adjacencies():
+    CliOnFail = None
+    # For debugging, uncomment the next line
+    #CliOnFail = 'tgen.mininet_cli'
+    CheckFunc = 'ltemplateVersionCheck(\'4.1\')'
+    #uncomment next line to start cli *before* script is run
+    #CheckFunc = 'ltemplateVersionCheck(\'4.1\', cli=True)'
+    ltemplateTest('scripts/adjacencies.py', False, CliOnFail, CheckFunc)
+
+def SKIP_test_add_routes():
+    CliOnFail = None
+    # For debugging, uncomment the next line
+    #CliOnFail = 'tgen.mininet_cli'
+    CheckFunc = 'ltemplateVersionCheck(\'4.1\')'
+    #uncomment next line to start cli *before* script is run
+    #CheckFunc = 'ltemplateVersionCheck(\'4.1\', cli=True)'
+    ltemplateTest('scripts/add_routes.py', False, CliOnFail, CheckFunc)
+
+def test_check_routes():
+    CliOnFail = None
+    # For debugging, uncomment the next line
+    #CliOnFail = 'tgen.mininet_cli'
+    CheckFunc = 'ltemplateVersionCheck(\'4.1\')'
+    #uncomment next line to start cli *before* script is run
+    #CheckFunc = 'ltemplateVersionCheck(\'4.1\', cli=True)'
+    ltemplateTest('scripts/check_routes.py', False, CliOnFail, CheckFunc)
+
+#manual data path setup test - remove once have bgp/zebra vrf path working
+def test_check_linux_mpls():
+    CliOnFail = None
+    # For debugging, uncomment the next line
+    #CliOnFail = 'tgen.mininet_cli'
+    CheckFunc = 'ltemplateVersionCheck(\'4.1\', iproute2=\'4.9\')'
+    #uncomment next line to start cli *before* script is run
+    #CheckFunc = 'ltemplateVersionCheck(\'4.1\', cli=True, iproute2=\'4.9\')'
+    ltemplateTest('scripts/check_linux_mpls.py', False, CliOnFail, CheckFunc)
+
+def test_del_bgp_instances():
+    CliOnFail = None
+    # For debugging, uncomment the next line
+    #CliOnFail = 'tgen.mininet_cli'
+    CheckFunc = 'ltemplateVersionCheck(\'4.1\')'
+    #uncomment next line to start cli *before* script is run
+    #CheckFunc = 'ltemplateVersionCheck(\'4.1\', cli=True)'
+    ltemplateTest('scripts/del_bgp_instances.py', False, CliOnFail, CheckFunc)
+
+if __name__ == '__main__':
+    retval = pytest.main(["-s"])
+    sys.exit(retval)

tests/topotests/bgp_l3vpn_to_bgp_vrf/scripts/del_bgp_instances.py

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+from lutil import luCommand
+
+luCommand('r1','/usr/lib/frr/vtysh -c "conf ter" -c "no router bgp 5227 vrf r1-cust1" -c "no router bgp 5226"','.','none','Cleared bgp instances')
+luCommand('r2','/usr/lib/frr/vtysh -c "conf ter" -c "no router bgp 5226"','.','none','Cleared bgp instances')
+luCommand('r3','/usr/lib/frr/vtysh -c "conf ter" -c "no router bgp 5227 vrf r3-cust1" -c "no router bgp 5226"','.','none','Cleared bgp instances')
+luCommand('r4','/usr/lib/frr/vtysh -c "conf ter" -c "no router bgp 5228 vrf r4-cust2" -c "no router bgp 5227 vrf r4-cust1"  -c "no router bgp 5226"','.','none','Cleared bgp instances')
+