libcli/dns/cmocka-tests waf scripting

[Dimitris Gravanis]

Hi,

In my Samba fork 
<https://github.com/dimgrav/samba/tree/master/libcli/dns>, in 
libcli/dns/cmocka-tests/, I've written a wscript to configure and build 
the unit tests in the directory. The script is attached below.

Running |wax configure| completes successfully, |wax build| results in 
this error:

|AttributeError: 'BuildContext' object has no attribute 'SAMBA_BINARY'|

The wscript_build in libcli/dns (top level) is:

|bld.SAMBA_SUBSYSTEM('clidns',||
||        source='cli_dns.c',||
||        public_deps='LIBTSOCKET tevent-util')|

Can anyone help me fix the script to properly use SAMBA_BINARY as an 
object attribute? I looked into testsuites/unittests/ and The Waf Book 
to figure out Waf scripting for cmocka unit tests, I've also gone 
through top level wscript and wscript_build scripts, as well as almost 
every other in Samba, I believe I have understood the recursive building 
concept well enough, but obviously I lack significant background in Waf 
and its Samba implementations :).

Cheers,

Dimitris

-- 
Δ. Γραβάνης | D. Gravanis

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#!/usr/bin/env python

import os

APPNAME = 'DNS Client Tests'

top = '.'
out = 'build-tests'

# configuration options
def options(opt):
	opt.get_option_group('configure options')

# configures and builds test suites for cmocka-tests
def configure(conf):
	print('prefix set to: ' + conf.options.prefix)
	print('src dir (blank: default): ' + conf.options.top)
	print('bld dir (blank: default): ' + conf.options.out)
	print('configuring test suites in build dir...')
	return

def build(bld):
	print('building cli_crypto_test...')
	bld.SAMBA_BINARY('cli_crypto_test',
			source='cli_crypto_test.c',
			deps='LIBTSOCKET tevent-util cmocka',
			install=False)

	print('building dns_tcp_test...')
	bld.SAMBA_BINARY('dns_tcp_test',
			source='dns_tcp_test.c',
			deps='LIBTSOCKET tevent-util cmocka',
			install=False)

	print('building dns_udp_test...')
	bld.SAMBA_BINARY('dns_udp_test',
			source='dns_udp_test.c',
			deps='LIBTSOCKET tevent-util cmocka',
			install=False)

	# builds the combined client test (not yet implemented)
	'''
	bld.SAMBA_BINARY('client_tests',
			source='cli_tests.c',
			deps='LIBTSOCKET tevent-util cmocka',
			install=False)
	'''
	print('DONE')

# creates tarball
def dist(ctx):
	ctx.base_name = 'libcli-dns-tests'
	ctx.algo = 'tar.gz'
	ctx.excl = '**/wscript'