tests: respect naming conventions and improve nesting of some test suites

Change-Id: I255c27b552b32570871a9d5f8bda814ba8723c80
Refs: #2497
diff --git a/tests/unit-tests/security/sec-rule-relative.t.cpp b/tests/unit-tests/security/sec-rule-relative.t.cpp
index a94e6c1..21f805e 100644
--- a/tests/unit-tests/security/sec-rule-relative.t.cpp
+++ b/tests/unit-tests/security/sec-rule-relative.t.cpp
@@ -28,9 +28,10 @@
 
 using namespace ndn::tests;
 
-BOOST_FIXTURE_TEST_SUITE(SecuritySecRuleRelative, IdentityManagementFixture)
+BOOST_AUTO_TEST_SUITE(Security)
+BOOST_FIXTURE_TEST_SUITE(TestSecRuleRelative, IdentityManagementFixture)
 
-BOOST_AUTO_TEST_CASE(SecRuleRelativeTest)
+BOOST_AUTO_TEST_CASE(Basic)
 {
   Name rsaIdentity("/SecurityTestSecRule/Basic/Rsa");
   BOOST_REQUIRE(addIdentity(rsaIdentity, RsaKeyParams()));
@@ -61,7 +62,8 @@
   BOOST_CHECK_EQUAL(rule.matchSignerName(sha256Data), false);
 }
 
-BOOST_AUTO_TEST_SUITE_END()
+BOOST_AUTO_TEST_SUITE_END() // TestSecRuleRelative
+BOOST_AUTO_TEST_SUITE_END() // Security
 
 } // namespace tests
 } // namespace security