Use do-while instead of while in tests.

This forces all the loop bodies to be executed at least once, which is
harmless since it just means one more tox event loop iteration. This
reduces the jitter we see in coverage measurements, which is partially
caused by loops sometimes being entered and sometimes not (because their
condition happens to randomly already be true).

1 files changed, 6 insertions, 6 deletions

diff --git a/auto_tests/conference_test.c b/auto_tests/conference_test.c
index 8f8f9357..235200cd 100644
--- a/auto_tests/conference_test.c
+++ b/auto_tests/conference_test.c
@@ -216,7 +216,7 @@ static void test_many_group(void)
     printf("waiting for everyone to come online\n");
     unsigned online_count = 0;
 
-    while (online_count != NUM_GROUP_TOX) {
+    do {
         online_count = 0;
 
         for (uint16_t i = 0; i < NUM_GROUP_TOX; ++i) {
@@ -228,7 +228,7 @@ static void test_many_group(void)
         fflush(stdout);
 
         c_sleep(1000);
-    }
+    } while (online_count != NUM_GROUP_TOX);
 
     printf("friends connected, took %d seconds\n", (int)(time(nullptr) - cur_time));
 
@@ -243,7 +243,7 @@ static void test_many_group(void)
     printf("waiting for invitations to be made\n");
     uint16_t invited_count = 0;
 
-    while (invited_count != NUM_GROUP_TOX - 1) {
+    do {
         invited_count = 0;
 
         for (uint16_t i = 0; i < NUM_GROUP_TOX; ++i) {
@@ -252,13 +252,13 @@ static void test_many_group(void)
         }
 
         c_sleep(50);
-    }
+    } while (invited_count != NUM_GROUP_TOX - 1);
 
     cur_time = time(nullptr);
     printf("waiting for all toxes to be in the group\n");
     uint16_t fully_connected_count = 0;
 
-    while (fully_connected_count != NUM_GROUP_TOX) {
+    do {
         fully_connected_count = 0;
         printf("current peer counts: [");
 
@@ -284,7 +284,7 @@ static void test_many_group(void)
         fflush(stdout);
 
         c_sleep(200);
-    }
+    } while (fully_connected_count != NUM_GROUP_TOX);
 
     for (uint16_t i = 0; i < NUM_GROUP_TOX; ++i) {
         uint32_t peer_count = tox_conference_peer_count(toxes[i], 0, nullptr);