This defines a skip() function in the tests preamble which can
be used to skip tests. Skipped tests are counted, and a reason
for them being skipped printed after running the tests.
The script downloads and validates the download against a built-in
list of known checksums for the release ZIP files.
More on pup: https://github.com/ericchiang/pup/
For static builds we still need to manually reorder $HTTP_MODULES, and we
cannot source "auto/module" like the new-style configuration mode needs,
because the "auto/module" snippet modifies $HTTP_MODULES itself, but ignores
the new $ngx_module_order variable when doing a static build.
Fortunately, the old-style way of configuring the module is still working in
all Nginx versions for statically built modules, so we can keep using that
for static builds.
This fixes issue #46.
This avoids potential issues when running the tests in environments which
might set variables which Nginx tries to read on startup. For example,
the $NGINX variable was being picked from the Travis-CI build matrix
configuration.
Adrian Perez de Castro