Move BOOST_CONCEPT_ASSERT to unit tests where possible

Change-Id: I0c6ae494eb7be4ab2ff422ba6d866ead9e75f4eb
diff --git a/tests/unit/security/certificate.t.cpp b/tests/unit/security/certificate.t.cpp
index 37243d6..44ae731 100644
--- a/tests/unit/security/certificate.t.cpp
+++ b/tests/unit/security/certificate.t.cpp
@@ -37,6 +37,11 @@
 
 using namespace ndn::tests;
 
+BOOST_CONCEPT_ASSERT((WireEncodable<Certificate>));
+BOOST_CONCEPT_ASSERT((WireDecodable<Certificate>));
+static_assert(std::is_convertible_v<Certificate::Error*, Data::Error*>,
+              "Certificate::Error must inherit from Data::Error");
+
 BOOST_AUTO_TEST_SUITE(Security)
 BOOST_FIXTURE_TEST_SUITE(TestCertificate, ClockFixture)