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add a unit test with an empty node

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the db_test unit test now looks up an empty nonterminal node
to exercise the behavior of the step() function in qpzone.
This commit is contained in:
Evan Hunt 2025-03-05 15:46:17 -08:00
parent 7d98aba3ac
commit ecde0ea2d7
1 changed files with 33 additions and 1 deletions
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34
tests/dns/db_test.c
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@ -351,8 +351,40 @@ ISC_LOOP_TEST_IMPL(version) {
result = dns_db_find(db, name, ver, dns_rdatatype_a, 0, 0, &node, result = dns_db_find(db, name, ver, dns_rdatatype_a, 0, 0, &node,
foundname, &rdataset, NULL); foundname, &rdataset, NULL);
assert_int_equal(result, ISC_R_SUCCESS); assert_int_equal(result, ISC_R_SUCCESS);
dns_rdataset_disassociate(&rdataset);
dns_db_detachnode(db, &node); dns_db_detachnode(db, &node);
/* Now we create a node with an empty parent */
result = dns_db_newversion(db, &new);
dns_test_namefromstring("long.ent.name.test.test.", &fname);
result = dns_db_findnode(db, name, true, &node);
assert_int_equal(result, ISC_R_SUCCESS);
result = dns_db_addrdataset(db, node, new, 0, &rdataset, 0, NULL);
assert_int_equal(result, ISC_R_SUCCESS);
dns_rdataset_disassociate(&rdataset);
dns_rdataset_init(&rdataset);
/* look up the ENT; it should be empty */
dns_test_namefromstring("ent.name.test.test.", &fname);
dns_db_detachnode(db, &node);
result = dns_db_find(db, name, new, dns_rdatatype_a, 0, 0, &node,
foundname, &rdataset, NULL);
assert_int_equal(result, DNS_R_EMPTYNAME);
/* ... but then we roll it back... */
dns_db_closeversion(db, &new, false);
/* ... and the ENT should be NXDOMAIN now */
dns_test_namefromstring("ent.name.test.test.", &fname);
result = dns_db_find(db, name, ver, dns_rdatatype_a, 0, 0, &node,
foundname, &rdataset, NULL);
assert_int_equal(result, DNS_R_NXDOMAIN);
if (dns_rdataset_isassociated(&rdataset)) {
dns_rdataset_disassociate(&rdataset);
}
if (node != NULL) {
dns_db_detachnode(db, &node);
}
dns_db_closeversion(db, &ver, false); dns_db_closeversion(db, &ver, false);
dns_db_detach(&db); dns_db_detach(&db);