test: basic unit-test for WebSocket face

Change-Id: I41dcc2ecff57225db1aff8e359d507f0e89d4c96
Refs: #1553
diff --git a/wscript b/wscript
index 677d5e9..7b42d28 100644
--- a/wscript
+++ b/wscript
@@ -64,7 +64,7 @@
     conf.check_cfg(package='libndn-cxx', args=['--cflags', '--libs'],
                    uselib_store='NDN_CXX', mandatory=True)
 
-    boost_libs = 'system chrono program_options'
+    boost_libs = 'system chrono program_options random'
     if conf.options.with_tests:
         conf.env['WITH_TESTS'] = 1
         conf.define('WITH_TESTS', 1);