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-rw-r--r--src/or/test.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/src/or/test.c b/src/or/test.c
index b08f202c20..dc71db4e1d 100644
--- a/src/or/test.c
+++ b/src/or/test.c
@@ -43,6 +43,7 @@ const char tor_svn_revision[] = "";
#include "torgzip.h"
#include "mempool.h"
#include "memarea.h"
+#include "di_ops.h"
#ifdef USE_DMALLOC
#include <dmalloc.h>
@@ -1331,6 +1332,59 @@ test_util(void)
;
}
+static void
+test_util_di_ops(void)
+{
+#define LT -1
+#define GT 1
+#define EQ 0
+ const struct {
+ const char *a; int want_sign; const char *b;
+ } examples[] = {
+ { "Foo", EQ, "Foo" },
+ { "foo", GT, "bar", },
+ { "foobar", EQ ,"foobar" },
+ { "foobar", LT, "foobaw" },
+ { "foobar", GT, "f00bar" },
+ { "foobar", GT, "boobar" },
+ { "", EQ, "" },
+ { NULL, 0, NULL },
+ };
+
+ int i;
+
+ for (i = 0; examples[i].a; ++i) {
+ size_t len = strlen(examples[i].a);
+ int eq1, eq2, neq1, neq2, cmp1, cmp2;
+ test_eq(len, strlen(examples[i].b));
+ /* We do all of the operations, with operands in both orders. */
+ eq1 = tor_memeq(examples[i].a, examples[i].b, len);
+ eq2 = tor_memeq(examples[i].b, examples[i].a, len);
+ neq1 = tor_memneq(examples[i].a, examples[i].b, len);
+ neq2 = tor_memneq(examples[i].b, examples[i].a, len);
+ cmp1 = tor_memcmp(examples[i].a, examples[i].b, len);
+ cmp2 = tor_memcmp(examples[i].b, examples[i].a, len);
+
+ /* Check for correctness of cmp1 */
+ if (cmp1 < 0 && examples[i].want_sign != LT)
+ test_fail();
+ else if (cmp1 > 0 && examples[i].want_sign != GT)
+ test_fail();
+ else if (cmp1 == 0 && examples[i].want_sign != EQ)
+ test_fail();
+
+ /* Check for consistency of everything else with cmp1 */
+ test_eq(eq1, eq2);
+ test_eq(neq1, neq2);
+ test_eq(cmp1, -cmp2);
+ test_eq(eq1, cmp1 == 0);
+ test_eq(neq1, !eq1);
+ }
+
+ done:
+ ;
+}
+
/** Helper: assert that IPv6 addresses <b>a</b> and <b>b</b> are the same. On
* failure, reports an error, describing the addresses as <b>e1</b> and
* <b>e2</b>, and reporting the line number as <b>line</b>. */
@@ -4753,6 +4807,7 @@ static struct {
SUBENT(crypto, aes_iv),
SUBENT(crypto, base32_decode),
ENT(util),
+ SUBENT(util, di_ops),
SUBENT(util, ip6_helpers),
SUBENT(util, gzip),
SUBENT(util, datadir),