diff --git a/python/mozbuild/README.rst b/python/mozbuild/README.rst
index 7256b9ee0f5f..bd621fae3550 100644
--- a/python/mozbuild/README.rst
+++ b/python/mozbuild/README.rst
@@ -10,5 +10,4 @@ Modules Overview
 
 * mozbuild.compilation -- Functionality related to compiling. This
   includes managing compiler warnings.
-* mozbuild.testing -- Interfaces for running tests.
 
diff --git a/python/mozbuild/mozbuild/test/test_base.py b/python/mozbuild/mozbuild/test/test_base.py
index 5206492a98ab..5b9f0fdf3425 100644
--- a/python/mozbuild/mozbuild/test/test_base.py
+++ b/python/mozbuild/mozbuild/test/test_base.py
@@ -9,10 +9,12 @@ import unittest
 
 from tempfile import NamedTemporaryFile
 
-from mozbuild.base import BuildConfig
-from mozbuild.base import MozbuildObject
-from mozbuild.config import ConfigSettings
-from mozbuild.logger import LoggingManager
+from mach.logging import LoggingManager
+
+from mozbuild.base import (
+    BuildConfig,
+    MozbuildObject,
+)
 
 
 curdir = os.path.dirname(__file__)
@@ -20,20 +22,9 @@ topsrcdir = os.path.normpath(os.path.join(curdir, '..', '..', '..', '..'))
 log_manager = LoggingManager()
 
 
-class TestBuildConfig(unittest.TestCase):
-    def test_basic(self):
-        c = ConfigSettings()
-        c.register_provider(BuildConfig)
-
-        c.build.threads = 6
-
-
 class TestMozbuildObject(unittest.TestCase):
     def get_base(self):
-        settings = ConfigSettings()
-        settings.register_provider(BuildConfig)
-
-        return MozbuildObject(topsrcdir, settings, log_manager)
+        return MozbuildObject(topsrcdir, None, log_manager)
 
     def test_mozconfig_parsing(self):
         with NamedTemporaryFile(mode='wt') as mozconfig: