Commit 90f37119f3 for bind

commit 90f37119f3ead51cb9579fe200d292dab5d9ca0b
Author: Mark Andrews <marka@isc.org>
Date:   Thu Oct 8 11:56:43 2026 +1100

    Test that DST_ALG_FORMATSIZE is big enough

    DST_ALG_FORMATSIZE should be big enough that dst_algorithm_totext
    will succeed for every possible algorithm value allowing for the
    NUL byte added by dst_algorithm_format.

diff --git a/tests/dns/dst_test.c b/tests/dns/dst_test.c
index d73718af85..0c97dfba75 100644
--- a/tests/dns/dst_test.c
+++ b/tests/dns/dst_test.c
@@ -122,6 +122,29 @@ ISC_RUN_TEST_IMPL(algorithm_format) {
 	}
 }

+ISC_RUN_TEST_IMPL(algorithm_totext) {
+	/*
+	 * Checks that DST_ALG_FORMATSIZE is big enough
+	 * by asserting ISC_R_SUCCESS.  Subtract 1 to allow
+	 * for terminating NUL added in dst_algorithm_format.
+	 */
+	char algstr[DST_ALG_FORMATSIZE - 1];
+	isc_buffer_t b;
+	isc_result_t result;
+
+	/* Assigned range. */
+	for (dst_algorithm_t i = 0; i < DST_MAX_ALGS; i++) {
+		isc_buffer_init(&b, algstr, sizeof(algstr));
+		result = dst_algorithm_totext(i, &b);
+		assert_int_equal(result, ISC_R_SUCCESS);
+	}
+
+	/* Maximum possible value. */
+	isc_buffer_init(&b, algstr, sizeof(algstr));
+	result = dst_algorithm_totext((dst_algorithm_t)~0, &b);
+	assert_int_equal(result, ISC_R_SUCCESS);
+}
+
 ISC_RUN_TEST_IMPL(key_format) {
 	isc_result_t result;
 	dst_key_t *key = NULL;
@@ -601,6 +624,7 @@ ISC_RUN_TEST_IMPL(ecdsa_determinism_test) {
 ISC_TEST_LIST_START
 ISC_TEST_ENTRY(algorithm_fromdata)
 ISC_TEST_ENTRY(algorithm_format)
+ISC_TEST_ENTRY(algorithm_totext)
 ISC_TEST_ENTRY(key_format)
 ISC_TEST_ENTRY(sig_test)
 ISC_TEST_ENTRY(cmp_test)