[PATCH] test/test_rack_hijack.rb: try to increase test reliability

[Eric Wong <e@80x24.org>]

We need to wait for the hijacked process to run and write to the
log before we check it.  Since we may not have inotify, try to
trigger a sched_yield() syscall instead.
---
 test/test_rack_hijack.rb | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/test/test_rack_hijack.rb b/test/test_rack_hijack.rb
index 5bfc31f..2a9f23e 100644
--- a/test/test_rack_hijack.rb
+++ b/test/test_rack_hijack.rb
@@ -62,6 +62,10 @@ class TestRackHijack < Testcase
     assert_equal "zzz", res["X-Test"]
     assert_equal "1.1", res.http_version
 
+    # hope this calls sched_yield() so the forked process runs and writes
+    # to the log.
+    Thread.new { Thread.pass }.join
+
     errs = File.readlines(err.path).grep(/DieIfUsed/)
     assert_equal([ "INFO #{pid} closed DieIfUsed 1\n",
                    "INFO #{pid} closed DieIfUsed 2\n" ], errs)
-- 
EW