ATF_REQUIRE_EQ(kvl.len, 1);
kv = pkg_kv_new("akey", "value");
ATF_REQUIRE(pkg_kv_insert_sorted(&kvl, kv) != NULL);
ATF_REQUIRE_EQ(pkg_kv_insert_sorted(&kvl, kv), NULL);
ATF_REQUIRE_EQ(kvl.len, 2);
ATF_REQUIRE_STREQ(kvl.d[0]->key, "akey");
ATF_REQUIRE_STREQ(kvl.d[1]->key, "key");