test: Increase time limit for IP creation in an HS test.

This should avoid most intermittent test failures on developer and CI machines,
but there could (and probably should) be a more elegant solution.

Also, this test was testing that the IP was created and its expiration time was
set to a time greater than or equal to `now+INTRO_POINT_LIFETIME_MIN_SECONDS+5`:

    /* Time to expire MUST also be in that range. We add 5 seconds because
     * there could be a gap between setting now and the time taken in
     * service_intro_point_new. On ARM, it can be surprisingly slow... */
    tt_u64_op(ip->time_to_expire, OP_GE,
              now + INTRO_POINT_LIFETIME_MIN_SECONDS + 5);

However, this appears to be a typo, since, according to the comment above it,
adding five seconds was done because the IP creation can be slow on some
systems.  But the five seconds is added to the *minimum* time we're comparing
against, and so it actually functions to make this test *more* likely to fail on
slower systems.  (It should either subtract five seconds, or instead add it to
time_to_expire.)

 * FIXES #25450: https://bugs.torproject.org/25450

1 files changed, 9 insertions, 0 deletions

diff --git a/changes/bug25450 b/changes/bug25450
new file mode 100644
index 0000000000..d6127a5d23
--- /dev/null
+++ b/changes/bug25450
@@ -0,0 +1,9 @@
+  o Minor bugfixes (testing):
+    - Avoid intermittent test failures due to relying on hidden service
+      introductory point creation within 5 seconds of real clock time.  The
+      time limit for the test has been increased to 500 seconds, which may
+      still result in intermittent failures (e.g. if the system doing the
+      testing enters sleep/hibernation or experiences some other clock jump).
+      However, this should elliminate test failures currently happening on
+      developer and CI systems.  Fixes bug 25450 (shoddily); bugfix on
+      0.3.1.3-alpha.