fixup! Unit tests for router download functions.

(Add missing test_routerlist.c that I forgot to add from arlo's branch
last time.  Oops.)

1 files changed, 104 insertions, 0 deletions

diff --git a/src/test/test_routerlist.c b/src/test/test_routerlist.c
new file mode 100644
index 0000000000..1c2b1f8379
--- /dev/null
+++ b/src/test/test_routerlist.c
@@ -0,0 +1,104 @@
+/* Copyright (c) 2014, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+#define ROUTERLIST_PRIVATE
+#include "or.h"
+#include "routerlist.h"
+#include "directory.h"
+#include "test.h"
+
+
+/* 4 digests + 3 sep + pre + post + NULL */
+static char output[4*BASE64_DIGEST256_LEN+3+2+2+1];
+
+static void
+mock_get_from_dirserver(uint8_t dir_purpose, uint8_t router_purpose,
+                             const char *resource, int pds_flags)
+{
+  (void)dir_purpose;
+  (void)router_purpose;
+  (void)pds_flags;
+  test_assert(resource);
+  strlcpy(output, resource, sizeof(output));
+ done:
+  ;
+}
+
+static void
+test_routerlist_initiate_descriptor_downloads(void *arg)
+{
+  const char *prose = "unhurried and wise, we perceive.";
+  smartlist_t *digests = smartlist_new();
+  (void)arg;
+
+  for (int i = 0; i < 20; i++) {
+    smartlist_add(digests, (char*)prose);
+  }
+
+  MOCK(directory_get_from_dirserver, mock_get_from_dirserver);
+  initiate_descriptor_downloads(NULL, DIR_PURPOSE_FETCH_MICRODESC,
+                                digests, 3, 7, 0);
+  UNMOCK(directory_get_from_dirserver);
+
+  test_streq(output, "d/" \
+                     "dW5odXJyaWVkIGFuZCB3aXNlLCB3ZSBwZXJjZWl2ZS4-" \
+                     "dW5odXJyaWVkIGFuZCB3aXNlLCB3ZSBwZXJjZWl2ZS4-" \
+                     "dW5odXJyaWVkIGFuZCB3aXNlLCB3ZSBwZXJjZWl2ZS4-" \
+                     "dW5odXJyaWVkIGFuZCB3aXNlLCB3ZSBwZXJjZWl2ZS4" \
+                     ".z");
+
+ done:
+  smartlist_free(digests);
+}
+
+static int count = 0;
+
+static void
+mock_initiate_descriptor_downloads(const routerstatus_t *source,
+                                   int purpose, smartlist_t *digests,
+                                   int lo, int hi, int pds_flags)
+{
+  (void)source;
+  (void)purpose;
+  (void)digests;
+  (void)pds_flags;
+  (void)hi;
+  (void)lo;
+  count += 1;
+}
+
+static void
+test_routerlist_launch_descriptor_downloads(void *arg)
+{
+  smartlist_t *downloadable = smartlist_new();
+  time_t now = time(NULL);
+  char *cp;
+  (void)arg;
+
+  for (int i = 0; i < 100; i++) {
+    cp = tor_malloc(DIGEST256_LEN);
+    test_assert(cp);
+    crypto_rand(cp, DIGEST256_LEN);
+    smartlist_add(downloadable, cp);
+  }
+
+  MOCK(initiate_descriptor_downloads, mock_initiate_descriptor_downloads);
+  launch_descriptor_downloads(DIR_PURPOSE_FETCH_MICRODESC, downloadable,
+                              NULL, now);
+  tt_int_op(3, ==, count);
+  UNMOCK(initiate_descriptor_downloads);
+
+ done:
+  SMARTLIST_FOREACH(downloadable, char *, cp1, tor_free(cp1));
+  smartlist_free(downloadable);
+}
+
+#define NODE(name, flags) \
+  { #name, test_routerlist_##name, (flags), NULL, NULL }
+
+struct testcase_t routerlist_tests[] = {
+  NODE(initiate_descriptor_downloads, 0),
+  NODE(launch_descriptor_downloads, 0),
+  END_OF_TESTCASES
+};
+