Add test to check stateful partition contents

server/site_tests/suite_BuildVerify/control

Index: server/site_tests/suite_BuildVerify/control
diff --git a/server/site_tests/suite_BuildVerify/control b/server/site_tests/suite_BuildVerify/control
index 73ec38a3e0bb892f03f8e88de8d0b4c0c7352e2c..5af085baf484bfcfe874cf69a3abea35ccb650c1 100644
--- a/server/site_tests/suite_BuildVerify/control
+++ b/server/site_tests/suite_BuildVerify/control
@@ -90,6 +90,14 @@ client_at.run_test('hardware_SAT', seconds=20)
 
 client_at.run_test('login_CryptohomeMounted', tag='success')
 
+# Check volume of logging, and expect less than 50% of this machine's
+# stateful partition is used.  Also make sure there's not a serious
+# problem with the patterns being too permissive by assuming most were
+# required.
+client_at.run_test('logging_LogVolume',
+                  constraints=['percent_stateful_used <= 50',
+                               'percent_unused_patterns <= 70'])
+
 client_at.run_test('network_DisableInterface',
                    iface_name='eth0', tag='eth0')
 client_at.run_test('network_DisableInterface',