DNSSEC: fix leaks in unit tests

tests/dnssec_keys.c

@@ -236,6 +236,7 @@ int main(int argc, char *argv[])
 		             sizeof(decoded_secret)) == 0,
 		   "knot_tsig_key_from_params(), secret set properly");
 
+		knot_free_key_params(&params);
 		knot_tsig_key_free(&tsig_key);
 	}
 

tests/dnssec_sign.c

@@ -21,6 +21,7 @@
 
 #include "common/errcode.h"
 #include "libknot/dnssec/sign.h"
+#include "libknot/dnssec/cleanup.h"
 
 #ifdef OPENSSL_NO_ECDSA
 static const int ecdsa_supported = 0;
@@ -82,6 +83,8 @@ static void test_algorithm(const char *alg, const knot_key_params_t *kp)
 
 		result = knot_dnssec_sign_verify(ctx, sig, sig_size);
 		is_int(KNOT_EOK, result, "%s: verify valid signature", alg);
+
+		free(sig);
 	}
 
 	knot_dnssec_sign_free(ctx);
@@ -137,5 +140,7 @@ int main(int argc, char *argv[])
 		knot_free_key_params(&kp);
 	}
 
+	knot_dnssec_cleanup();
+
 	return 0;
 }