tests: unit-tests-{core,tools} no longer require a global io_service

BaseFixture is moved to tests/daemon and renamed to GlobalIoFixture

Refs: #4528
Change-Id: If9184e9f7f1d6072b0103d3ea3ca6c31a9e505c8
diff --git a/tests/daemon/rib/rib.t.cpp b/tests/daemon/rib/rib.t.cpp
index 26a47b3..a1b8363 100644
--- a/tests/daemon/rib/rib.t.cpp
+++ b/tests/daemon/rib/rib.t.cpp
@@ -26,13 +26,14 @@
 #include "rib/rib.hpp"
 
 #include "tests/test-common.hpp"
+#include "tests/daemon/global-io-fixture.hpp"
 #include "tests/daemon/rib/create-route.hpp"
 
 namespace nfd {
 namespace rib {
 namespace tests {
 
-BOOST_FIXTURE_TEST_SUITE(TestRib, nfd::tests::BaseFixture)
+BOOST_FIXTURE_TEST_SUITE(TestRib, nfd::tests::GlobalIoFixture)
 
 BOOST_AUTO_TEST_CASE(Parent)
 {