tests: InterThread: adapt to have reproducible output and enable autotest

Change-Id: I05d4067890b526bd72d2eb31cf76de43ee11e80f
diff --git a/tests/testsuite.at b/tests/testsuite.at
index 2c1e0b5..5d519d2 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -7,11 +7,11 @@
 AT_CHECK([$abs_top_builddir/tests/CommonLibs/BitVectorTest], [], [expout], [])
 AT_CLEANUP
 
-#AT_SETUP([InterthreadTest])
-#AT_KEYWORDS([InterthreadTest])
-#cat $abs_srcdir/CommonLibs/InterthreadTest.ok > expout
-#AT_CHECK([$abs_top_builddir/tests/CommonLibs/InterthreadTest], [], [expout], [])
-#AT_CLEANUP
+AT_SETUP([InterthreadTest])
+AT_KEYWORDS([InterthreadTest])
+cat $abs_srcdir/CommonLibs/InterthreadTest.ok > expout
+AT_CHECK([$abs_top_builddir/tests/CommonLibs/InterthreadTest], [], [expout], [ignore])
+AT_CLEANUP
 
 #AT_SETUP([LogTest])
 #AT_KEYWORDS([LogTest])