Fix unit tests that were broken after last fix of #932.

With the last fix of task 932 (5f03d6c), client requests are only added to
the history when they happen after the start of the current history. This
conflicts with the unit tests that insert current requests first (defining
the start of the client request history) followed by requests in the past.
The fix is to insert requests in chronological order in the unit tests.

src/or/test.c

@@ -4678,25 +4678,25 @@ test_geoip(void)
   get_options()->BridgeRecordUsageByCountry = 1;
   /* Put 9 observations in AB... */
   for (i=32; i < 40; ++i)
-    geoip_note_client_seen(GEOIP_CLIENT_CONNECT, i, now);
-  geoip_note_client_seen(GEOIP_CLIENT_CONNECT, 225, now);
+    geoip_note_client_seen(GEOIP_CLIENT_CONNECT, i, now-7200);
+  geoip_note_client_seen(GEOIP_CLIENT_CONNECT, 225, now-7200);
   /* and 3 observations in XY, several times. */
   for (j=0; j < 10; ++j)
     for (i=52; i < 55; ++i)
       geoip_note_client_seen(GEOIP_CLIENT_CONNECT, i, now-3600);
   /* and 17 observations in ZZ... */
   for (i=110; i < 127; ++i)
-    geoip_note_client_seen(GEOIP_CLIENT_CONNECT, i, now-7200);
+    geoip_note_client_seen(GEOIP_CLIENT_CONNECT, i, now);
   s = geoip_get_client_history(now+5*24*60*60, GEOIP_CLIENT_CONNECT);
   test_assert(s);
   test_streq("zz=24,ab=16,xy=8", s);
   tor_free(s);
 
-  /* Now clear out all the zz observations. */
+  /* Now clear out all the AB observations. */
   geoip_remove_old_clients(now-6000);
   s = geoip_get_client_history(now+5*24*60*60, GEOIP_CLIENT_CONNECT);
   test_assert(s);
-  test_streq("ab=16,xy=8", s);
+  test_streq("zz=24,xy=8", s);
 
  done:
   tor_free(s);