Test suite for nginx.

Use prove to run tests as one usually do for perl tests.  Individual tests
may be run as well.

Note: tests run nginx (and backend daemons if needed) listening on localhost
and may use various ports in 8000 .. 8999 range.

Usage:

    $ TEST_NGINX_BINARY=/path/to/nginx prove .

By default tests expect nginx binary to be at ../nginx/objs/nginx.

Environment variables:

TEST_NGINX_BINARY

    Sets path to nginx binary to be tested, defaults to "../nginx/objs/nginx".

TEST_NGINX_MODULES

    Sets path to modules directory, defaults to dirname of TEST_NGINX_BINARY.

TEST_NGINX_VERBOSE

    Be a bit more verbose (in particular, print requests sent and responses
    got from nginx).  Note that this requires prove -v (or HARNESS_VERBOSE).

TEST_NGINX_LEAVE

    If set, temporary directory with configs and logs won't be deleted on test
    completion.  Useful for debugging.

TEST_NGINX_CATLOG

    Cat error log to stdout after test completion.  Useful for debugging.

TEST_NGINX_UNSAFE

    Run unsafe tests.

TEST_NGINX_VALGRIND

    Run nginx under Valgrind during tests.

TEST_NGINX_GLOBALS

    Sets additional directives in main context.

TEST_NGINX_GLOBALS_HTTP

    Sets additional directives in http context.

TEST_NGINX_GLOBALS_STREAM

    Sets additional directives in stream context.

Happy testing!