import all modules, even if there are no tests

This makes the coverage estimate a better description of the overall
level of coverage

.coveragerc

@@ -0,0 +1 @@
+common/coveragerc

common/coveragerc

@@ -0,0 +1,31 @@
+[report]
+# Regexes for lines to exclude from consideration
+exclude_lines =
+    # Have to re-enable the standard pragma
+    pragma: no cover
+
+    # Don't complain about missing debug-only code:
+    def __repr__
+    if self\.debug
+
+    # Don't complain if tests don't hit defensive assertion code:
+    raise AssertionError
+    raise NotImplementedError
+
+    # Don't complain if non-runnable code isn't run:
+    if 0:
+    if __name__ == .__main__.:
+    if runtime.platformType  == 'win32'
+
+    # 'pass' generally means 'this won't be called'
+    ^ *pass *$
+
+include =
+    master/*
+    slave/*
+
+omit =
+    # omit all of our tests
+    */test/*
+    # templates cause coverage errors
+    */templates/*

master/buildbot/test/test_extra_coverage.py

@@ -0,0 +1,65 @@
+# This file is part of Buildbot.  Buildbot is free software: you can
+# redistribute it and/or modify it under the terms of the GNU General Public
+# License as published by the Free Software Foundation, version 2.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc., 51
+# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Copyright Buildbot Team Members
+
+# this file imports a number of source files that are not
+# included in the coverage because none of the tests import
+# them; this results in a more accurate total coverage percent.
+
+modules = [] # for the benefit of pyflakes
+
+from buildbot import buildslave
+modules.extend([buildslave])
+from buildbot.changes import p4poller, svnpoller
+modules.extend([p4poller, svnpoller])
+from buildbot.clients import base, sendchange, tryclient
+modules.extend([base, sendchange, tryclient])
+from buildbot.process import mtrlogobserver, subunitlogobserver
+modules.extend([mtrlogobserver, subunitlogobserver])
+from buildbot.scripts import checkconfig, logwatcher, reconfig, runner, startup
+modules.extend([checkconfig, logwatcher, reconfig, runner, startup])
+from buildbot.status import client, html, status_gerrit, status_push
+modules.extend([client, html, status_gerrit, status_push])
+from buildbot.status import tinderbox, words
+modules.extend([tinderbox, words])
+from buildbot.status.web import baseweb, build, builder, buildstatus, changes
+modules.extend([baseweb, build, builder, buildstatus, changes])
+from buildbot.status.web import console, feeds, grid, logs, olpb, root, slaves
+modules.extend([console, feeds, grid, logs, olpb, root, slaves])
+from buildbot.status.web import status_json, step, tests, waterfall
+modules.extend([status_json, step, tests, waterfall])
+from buildbot.steps import dummy, master, maxq, python, python_twisted, subunit
+modules.extend([dummy, master, maxq, python, python_twisted, subunit])
+from buildbot.steps import trigger, vstudio
+modules.extend([trigger, vstudio])
+from buildbot.steps.package.rpm import rpmbuild, rpmlint, rpmspec
+modules.extend([rpmbuild, rpmlint, rpmspec])
+from buildbot.util import collections, eventual, loop, monkeypatches
+modules.extend([collections, eventual, loop, monkeypatches])
+
+# require gobject
+#import buildbot.clients.gtkPanes
+#import buildbot.clients.debug
+
+# requires mercurial
+#import buildbot.changes.hgbuildbot
+
+# requires libboto
+#import buildbot.ec2buildslave
+
+# requires libvirt
+#import buildbot.libvirtbuildslave
+
+# requires pycrypto
+#import buildbot.manhole

slave/buildslave/test/test_extra_coverage.py

@@ -0,0 +1,23 @@
+# This file is part of Buildbot.  Buildbot is free software: you can
+# redistribute it and/or modify it under the terms of the GNU General Public
+# License as published by the Free Software Foundation, version 2.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc., 51
+# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Copyright Buildbot Team Members
+
+# this file imports a number of source files that are not
+# included in the coverage because none of the tests import
+# them; this results in a more accurate total coverage percent.
+
+modules = [] # for the benefit of pyflakes
+
+from buildslave.scripts import logwatcher, runner, startup
+modules.extend([logwatcher, runner, startup])