tests: Add a couple simple Null0 spelling tests

[donaldsharp]

Add a bit of code to test different spelling of Null0 routes.
This was broken at some point in the past and with recent
changes is working again, but it would be nice to
know when this breaks again.

Signed-off-by: Donald Sharp sharpd@cumulusnetworks.com

[LabN-CI]

💚 Basic BGPD CI results: SUCCESS, 0 tests failed

Results table

_	_
Result	SUCCESS git merge/4864 a7e52bd
Date	08/21/2019
Start	12:15:24
Finish	12:37:51
Run-Time	22:27
Total	1818
Pass	1818
Fail	0
Valgrind-Errors	0
Valgrind-Loss	0
Details	vncregress-2019-08-21-12:15:24.txt
Log	autoscript-2019-08-21-12:16:40.log.bz2
Memory	435 417 360

For details, please contact louberger

[NetDEF-CI]

Continuous Integration Result: FAILED

See below for issues.
CI System Testrun URL: https://ci1.netdef.org/browse/FRR-FRRPULLREQ-8670/

This is a comment from an automated CI system.
For questions and feedback in regards to this CI system, please feel free to email
Martin Winter - mwinter (at) opensourcerouting.org.

Get source / Pull Request: Successful

Building Stage: Successful

Basic Tests: Failed

Topology tests on Ubuntu 18.04 amd64: Failed (click for details)

Topology tests on Ubuntu 18.04 amd64: No useful log found

Topotest tests on Ubuntu 16.04 i386: Failed (click for details)

Topotest tests on Ubuntu 16.04 i386: No useful log found

Topology tests on Ubuntu 16.04 amd64: Failed (click for details)

Topology tests on Ubuntu 16.04 amd64: No useful log found

Successful on other platforms

• Ubuntu 12.04 deb pkg check
• Fedora 29 rpm pkg check
• Static analyzer (clang)
• IPv6 protocols on Ubuntu 14.04
• Ubuntu 16.04 deb pkg check
• CentOS 7 rpm pkg check
• Addresssanitizer topotest
• Debian 10 deb pkg check
• Debian 8 deb pkg check
• Debian 9 deb pkg check
• IPv4 protocols on Ubuntu 14.04
• IPv4 ldp protocol on Ubuntu 16.04
• Ubuntu 14.04 deb pkg check

---

CLANG Static Analyzer Summary

• Github Pull Request 4864, comparing to Git base SHA 9316c82

No Changes in Static Analysis warnings compared to base

1 Static Analyzer issues remaining.

See details at
https://ci1.netdef.org/browse/FRR-FRRPULLREQ-8670/artifact/shared/static_analysis/index.html

[donaldsharp]

ci:rerun

[NetDEF-CI]

Continuous Integration Result: SUCCESSFUL

Congratulations, this patch passed basic tests

Tested-by: NetDEF / OpenSourceRouting.org CI System

CI System Testrun URL: https://ci1.netdef.org/browse/FRR-FRRPULLREQ-8670/

This is a comment from an automated CI system.
For questions and feedback in regards to this CI system, please feel free to email
Martin Winter - mwinter (at) opensourcerouting.org.

---

CLANG Static Analyzer Summary

• Github Pull Request 4864, comparing to Git base SHA 9316c82

No Changes in Static Analysis warnings compared to base

1 Static Analyzer issues remaining.

See details at
https://ci1.netdef.org/browse/FRR-FRRPULLREQ-8670/artifact/shared/static_analysis/index.html

[NetDEF-CI]

Continuous Integration Result: SUCCESSFUL

Congratulations, this patch passed basic tests

Tested-by: NetDEF / OpenSourceRouting.org CI System

CI System Testrun URL: https://ci1.netdef.org/browse/FRR-FRRPULLREQ-8673/

This is a comment from an automated CI system.
For questions and feedback in regards to this CI system, please feel free to email
Martin Winter - mwinter (at) opensourcerouting.org.

---

CLANG Static Analyzer Summary

• Github Pull Request 4864, comparing to Git base SHA 9316c82

No Changes in Static Analysis warnings compared to base

1 Static Analyzer issues remaining.

See details at
https://ci1.netdef.org/browse/FRR-FRRPULLREQ-8673/artifact/shared/static_analysis/index.html