(Most of this work was done by acrefoot in an earlier branch.
I took over the branch to fix casper tests that were broken during
the upgrade (which were fixed in a different commit). I also
made most of the changes to run-casper.)
This also upgrades phantomjs to 2.1.7.
The huge structural change here is that we no longer vendor casperjs
or download phantomjs with our own script. Instead, we just use
casperjs and phantomjs from npm, via package.json.
Another thing that we do now is run casperjs tests individually, so
that we don't get strange test flakes from test interactions. (Tests
can still influence each other in terms of changing data, since we
don't yet have code to clear the test database in between tests.)
A lot of this diff is just removing files and obsolete configurations.
The main new piece is in package.json, which causes npm to install the
new version.
Also, run-casper now runs files individually, as mentioned above.
We had vendored casperjs in the past. I didn't bring over any of our
changes. Some of the changes were performance-related (primarily
5fd58cf249), so the upgraded version may
be slower in some instances. (I didn't do much measurement of that,
since most of our slowness when running tests is about the setup
environment, not casper itself.) Any bug fixes that we may have
implemented in the past were either magically fixed by changes to
casper itself or by improvements we have made in the tests themselves
over the years.
Tim tested the Casper suite on his machine and running the full Casper
test suite is faster than it was before this change (1m30 vs. 1m50),
so we're at least not regressing overall performance.
Previously, the generate-fixtures shell script by called into Django
multiple times in order to check whether the database was in a
reasonable state. Since there's a lot of overhead to starting up
Django, this resulted in `test-backend` and `test-js-with-casper`
being quite slow to run a single small test (2.8s or so) even on my
very fast laptop.
We fix this is by moving the checks into a new Python library, so that
we can avoid paying the Django startup overhead 3 times unnecessarily.
The result saves about 1.2s (~40%) from the time required to run a
single backend test.
Fixes#1221.
This adds support for running a Zulip production server with each
realm on its own unique subdomain, e.g. https://realm_name.example.com.
This patch includes a ton of important features:
* Configuring the Zulip sesion middleware to issue cookier correctly
for the subdomains case.
* Throwing an error if the user tries to visit an invalid subdomain.
* Runs a portion of the Casper tests with REALMS_HAVE_SUBDOMAINS
enabled to test the subdomain signup process.
* Updating our integrations documentation to refer to the current subdomain.
* Enforces that users can only login to the subdomain of their realm
(but does not restrict the API; that will be tightened in a future commit).
Note that toggling settings.REALMS_HAVE_SUBDOMAINS on a live server is
not supported without manual intervention (the main problem will be
adding "subdomain" values for all the existing realms).
[substantially modified by tabbott as part of merging]
Since relatively few systems have the typing module, this makes the
checks for whether the user is properly running our test scripts in
the virtualenv more likely to trigger well.
This should make users much more likely to be able to debug issues
where they ran Zulip outside the Vagrant environment or virtualenv.
[error messages tweaked by tabbott]