(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.
0bdc9fef5c