tests: Prevent memory leaks from test

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
(cherry picked from commit bc0c027ac0)

tests/unittests/torture_pki_ecdsa_uri.c

@@ -93,6 +93,7 @@ static int setup_directory_structure(void **state)
 
     rc = torture_change_dir(temp_dir);
     assert_int_equal(rc, 0);
+    SAFE_FREE(temp_dir);
 
     test_state->temp_dir = torture_get_current_working_dir();
     assert_non_null(test_state->temp_dir);
@@ -188,6 +189,7 @@ static void torture_pki_ecdsa_publickey_from_privatekey_uri(void **state, const
     assert_return_code(rc, errno);
     assert_true(rc == SSH_OK);
     assert_non_null(pblob);
+    ssh_string_free(pblob);
 
     rc = ssh_pki_export_privkey_to_pubkey(privkey, &pubkey);
     assert_return_code(rc, errno);
@@ -246,6 +248,7 @@ static void import_pubkey_without_loading_public_uri(void **state, const char *u
     rc = ssh_pki_export_pubkey_blob(privkey, &pblob);
     assert_int_not_equal(rc, 0);
     assert_null(pblob);
+    ssh_string_free(pblob);
 
     rc = ssh_pki_export_privkey_to_pubkey(privkey, &pubkey);
     assert_int_not_equal(rc, 0);
@@ -320,7 +323,7 @@ static void torture_ecdsa_sign_verify_uri(void **state, const char *uri, enum ss
     type_char = ssh_key_type_to_char(type);
     etype_char = ssh_pki_key_ecdsa_name(privkey);
 
-    switch(dig_type) {
+    switch (dig_type) {
     case SSH_DIGEST_SHA256:
         assert_true(type == SSH_KEYTYPE_ECDSA_P256);
         assert_string_equal(type_char, "ecdsa-sha2-nistp256");
@@ -340,6 +343,7 @@ static void torture_ecdsa_sign_verify_uri(void **state, const char *uri, enum ss
         printf("Invalid hash type: %d\n", dig_type);
     }
 
+    ssh_free(session);
     ssh_signature_free(sign);
     SSH_KEY_FREE(privkey);
     SSH_KEY_FREE(pubkey);
@@ -549,6 +553,7 @@ int torture_run_tests(void) {
     torture_filter_tests(tests);
     rc = cmocka_run_group_tests(tests, setup_directory_structure, teardown_directory_structure);
 
+    ssh_free(session);
     ssh_finalize();
 
     return rc;