test: Add unit tests for session expiration

Add simple tests to ensure the session expire method is called when
the timeout is set to zero.

Signed-off-by: Kun Yi <kunyi731@gmail.com>
Change-Id: Ic6e973ede760a6a6f15726d5b6c93a892d858c8b
diff --git a/test/Makefile.am b/test/Makefile.am
index ea45d7b..722b6b7 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -34,6 +34,7 @@
 	manager_unittest \
 	manager_getsession_unittest \
 	manager_open_unittest \
+	manager_expire_unittest \
 	manager_stat_unittest \
 	manager_sessionstat_unittest \
 	manager_commit_unittest \
@@ -95,6 +96,9 @@
 manager_open_unittest_SOURCES = manager_open_unittest.cpp
 manager_open_unittest_LDADD = $(top_builddir)/libblobcmds_common.la
 
+manager_expire_unittest_SOURCES = manager_expire_unittest.cpp
+manager_expire_unittest_LDADD = $(top_builddir)/libblobcmds_common.la
+
 manager_stat_unittest_SOURCES = manager_stat_unittest.cpp
 manager_stat_unittest_LDADD = $(top_builddir)/libblobcmds_common.la