various fixes to the test library

From: Clemens Buchacher <drizzd@aon.at>
Date: Jun 1, 2009, 12:14 UTC
Message-ID: <1243858482-6353-1-git-send-email-drizzd@aon.at>

If a http test failed, and the test was run with --immediate, the cleanup code would not be executed and stale web server instance were left behind. This is fixed by 2/3.

Clemens

[PATCH 1/3] test-lib: fail if invalid options are passed [PATCH 2/3] test-lib: allow exit trap to be used for cleanup by tests [PATCH 3/3] test-lib: fix http exit codes

 t/lib-httpd.sh |    6 ++++--
 t/test-lib.sh  |   23 +++++++++++++++--------
 2 files changed, 19 insertions(+), 10 deletions(-)