[tor-commits] [tor/master] Test get_guard_selection_by_name

[nickm@xxxxxxxxxxxxxx]

commit a7bc73935b030100b0d7b9f39c5dec5ef6eb0a85
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Wed Nov 23 15:08:07 2016 -0500

    Test get_guard_selection_by_name
---
 src/or/entrynodes.c        |  2 +-
 src/or/entrynodes.h        |  2 ++
 src/test/test_entrynodes.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 51 insertions(+), 1 deletion(-)

diff --git a/src/or/entrynodes.c b/src/or/entrynodes.c
index 860be9b..cf35b02 100644
--- a/src/or/entrynodes.c
+++ b/src/or/entrynodes.c
@@ -201,7 +201,7 @@ guard_selection_new(const char *name)
  * <b>create_if_absent</b> is true, then create and return it.  If there
  * is none, and <b>create_if_absent</b> is false, then return NULL.
  */
-static guard_selection_t *
+STATIC guard_selection_t *
 get_guard_selection_by_name(const char *name, int create_if_absent)
 {
   if (!guard_contexts) {
diff --git a/src/or/entrynodes.h b/src/or/entrynodes.h
index a514c13..285664d 100644
--- a/src/or/entrynodes.h
+++ b/src/or/entrynodes.h
@@ -416,6 +416,8 @@ int num_bridges_usable(void);
 // ---------- XXXX these functions and definitions are post-prop271.
 HANDLE_DECL(entry_guard, entry_guard_t, STATIC)
 STATIC guard_selection_t *guard_selection_new(const char *name);
+STATIC guard_selection_t *get_guard_selection_by_name(
+                                    const char *name, int create_if_absent);
 STATIC void guard_selection_free(guard_selection_t *gs);
 STATIC entry_guard_t *get_sampled_guard_with_id(guard_selection_t *gs,
                                                 const uint8_t *rsa_id);
diff --git a/src/test/test_entrynodes.c b/src/test/test_entrynodes.c
index cdf8672..785503b 100644
--- a/src/test/test_entrynodes.c
+++ b/src/test/test_entrynodes.c
@@ -1236,6 +1236,52 @@ test_entry_guard_parse_from_state_partial_failure(void *arg)
 }
 
 static void
+test_entry_guard_get_guard_selection_by_name(void *arg)
+{
+  (void)arg;
+  guard_selection_t *gs1, *gs2, *gs3;
+
+  gs1 = get_guard_selection_by_name("unlikely", 0);
+  tt_assert(gs1 == NULL);
+  gs1 = get_guard_selection_by_name("unlikely", 1);
+  tt_assert(gs1 != NULL);
+  gs2 = get_guard_selection_by_name("unlikely", 1);
+  tt_assert(gs2 == gs1);
+  gs2 = get_guard_selection_by_name("unlikely", 0);
+  tt_assert(gs2 == gs1);
+
+  gs2 = get_guard_selection_by_name("implausible", 0);
+  tt_assert(gs2 == NULL);
+  gs2 = get_guard_selection_by_name("implausible", 1);
+  tt_assert(gs2 != NULL);
+  tt_assert(gs2 != gs1);
+  gs3 = get_guard_selection_by_name("implausible", 0);
+  tt_assert(gs3 == gs2);
+
+  gs3 = get_guard_selection_by_name("default", 0);
+  tt_assert(gs3 == NULL);
+  gs3 = get_guard_selection_by_name("default", 1);
+  tt_assert(gs3 != NULL);
+  tt_assert(gs3 != gs2);
+  tt_assert(gs3 != gs1);
+  tt_assert(gs3 == get_guard_selection_info());
+
+#if 0
+  or_options_t *options = get_options_mutable();
+  options->UseDeprecatedGuardAlgorithm = 1;
+  gs4 = get_guard_selection_info();
+  tt_assert(gs4 != gs3);
+  tt_assert(gs4 == get_guard_selection_by_name("legacy", 1));
+
+  options->UseDeprecatedGuardAlgorithm = 0;
+  tt_assert(gs3 == get_guard_selection_info());
+#endif
+
+ done:
+  entry_guards_free_all();
+}
+
+static void
 test_entry_guard_add_single_guard(void *arg)
 {
   (void)arg;
@@ -2245,6 +2291,8 @@ struct testcase_t entrynodes_tests[] = {
     test_entry_guard_parse_from_state_failure, 0, NULL, NULL },
   { "parse_from_state_partial_failure",
     test_entry_guard_parse_from_state_partial_failure, 0, NULL, NULL },
+  { "get_guard_selection_by_name",
+    test_entry_guard_get_guard_selection_by_name, TT_FORK, NULL, NULL },
   BFN_TEST(add_single_guard),
   BFN_TEST(node_filter),
   BFN_TEST(expand_sample),



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