Author: rinrab
Date: Sat Jan 3 23:16:03 2026
New Revision: 1931079
Log:
checksum-test: Add test case to ensure that a context without any updates gives
the exact same result when finalized as one with a dummy update that pushes
zero-sized data.
* subversion/tests/libsvn_subr/checksum-test.c
(test_checksum_ctx_no_updates): New test.
(test_funcs): Run new test.
Modified:
subversion/trunk/subversion/tests/libsvn_subr/checksum-test.c
Modified: subversion/trunk/subversion/tests/libsvn_subr/checksum-test.c
==============================================================================
--- subversion/trunk/subversion/tests/libsvn_subr/checksum-test.c Sat Jan
3 16:27:50 2026 (r1931078)
+++ subversion/trunk/subversion/tests/libsvn_subr/checksum-test.c Sat Jan
3 23:16:03 2026 (r1931079)
@@ -25,6 +25,7 @@
#include <zlib.h>
+#include "svn_checksum.h"
#include "svn_error.h"
#include "svn_io.h"
@@ -406,6 +407,29 @@ do_bench_test(apr_size_t blocksize, svn_
}
static svn_error_t *
+test_checksum_ctx_no_updates(apr_pool_t *pool)
+{
+ svn_checksum_kind_t kind;
+
+ for (kind = svn_checksum_md5; kind <= svn_checksum_fnv1a_32x4; ++kind)
+ {
+ svn_checksum_ctx_t *ctx;
+ svn_checksum_t *checksum1, *checksum2;
+
+ ctx = svn_checksum_ctx_create(kind, pool);
+ SVN_ERR(svn_checksum_final(&checksum1, ctx, pool));
+
+ ctx = svn_checksum_ctx_create(kind, pool);
+ SVN_ERR(svn_checksum_update(ctx, "", 0));
+ SVN_ERR(svn_checksum_final(&checksum2, ctx, pool));
+
+ SVN_TEST_INT_ASSERT(svn_checksum_match(checksum1, checksum2), TRUE);
+ }
+
+ return SVN_NO_ERROR;
+}
+
+static svn_error_t *
test_checksum_performance(apr_pool_t *pool)
{
SVN_ERR(do_bench_test(/* 16 KB */ 16 * (1 << 10),
@@ -456,6 +480,8 @@ static struct svn_test_descriptor_t test
"reset checksummed stream"),
SVN_TEST_PASS2(test_checksum_performance,
"test checksum performance"),
+ SVN_TEST_PASS2(test_checksum_ctx_no_updates,
+ "test checksum context without updates"),
SVN_TEST_NULL
};
