Commit graph

12 commits

Author SHA1 Message Date
Stephen Niedzielski ae44042cbf Hygiene: add assertion messages
Change-Id: Ic0a47bd468532824e8648c3f6371cc403896603c
2018-05-08 15:55:23 -05:00
Stephen Niedzielski cb362d125c Hygiene: replace calledOnce / Twice w/ callCount
Replace all test assertions for calledOnce / Twice with callCount.
assert.ok( calledOnce / Twice ) only lets the dev know that a test
fails. assert.strictEqual( callCount, EXPECTATION ) starts the debugging
process when it fails since it provides the difference in the failure
output. strictEqual() was deliberately used since it's a saner default
and the codebase already favors === equivalency checks.

  find tests -name \*.js|
  xargs -rd\\n sed -ri '
    s%ok\(([^,]+)calledOnce%strictEqual(\1callCount, 1%g;
    s%ok\(([^,]+)calledTwice%strictEqual(\1callCount, 2%g;
  '

Change-Id: I07c3c6d20e07c5b8107583a01d820e3fbd68a4e1
2018-05-08 15:01:16 -05:00
jdlrobson 912402e840 Remove A/B testing code
No longer needed. We can't turn something off again for people
now they expect it to exist.

Clarified usage instructions of PopupsEventLogging to make sure
it's more scary given the implications

Bug: T173952
Change-Id: I7be005b79da498d8e7b7df8f18b60c1327636a2c
2018-05-07 12:37:41 -07:00
Stephen Niedzielski 57762e0417 Hygiene: favor const
Bug: T165036
Change-Id: I17d374eaac6627ca6a8ba178862b2a9cff2538c0
2018-03-21 10:44:24 +00:00
Stephen Niedzielski 0bee0906d4 Hygiene: replace var with let and const
eslint \
    --cache \
    --max-warnings 0 \
    --report-unused-disable-directives \
    --fix \
    src tests

Change-Id: I051275126ae7fa9affd16c2504017c0584f2d9c7
2018-03-20 14:14:02 -05:00
Stephen Niedzielski a67466acc0 Hygiene: replace obvious function methods
Replace easily identifiable object functions with method syntax:

  find \
    -not \( \( -name node_modules -o -name .git -o -name vendor -o -name doc -o -name resources \) -prune \) \
    -iname \*.js|
  xargs -rd\\n sed -ri 's%:\s*function\s*(\([^)]*\))%\1%g'

Bug: T165036
Change-Id: I90693ee99a6a36dff820dd5ae6f6000429763058
2018-03-20 09:27:07 -05:00
joakin 807100bcca Limit line length to 80 characters
Enforce it with eslint.

Ignore:
* Comment lines with eslint disable directives
* QUnit test lines as they contain long subjects (QUnit.* (only, test,
  module, skip, etc)
* Strings, since long strings are used extensively in tests
  * Ignore template literals for similar reasons
* Regex literals as they may be too long, but can't be easily
  split in several lines
* Long urls

See bug for more general proposal for eslint-wikimedia-config.

Bug: T185295
Change-Id: I3aacaf46e61a4d96547c513073e179ef997deb09
2018-01-19 14:20:39 +01:00
jdlrobson e4e9bb3bd6 Popups A/B test infrastructure
Introduce PopupsAnonsExperimentalGroupSize config variable. This defines
a population size who will be subject to experimentation. If the group
size is undefined or 0 (default) and PopupsBetaFeature is false
(default value) Popups will be enabled for everyone. If it is any other
value, half that group will see page previews.

Drop the config variable PopupsSchemaSamplingRate - we will now only
EventLog when an experiment is occuring. This means we can simplify the
MWEventLogger class as shouldLog will always be truthy. Given server
side eventlogging is only used for preference changes
traffic should be low and not need sampling.

Introduce getUserBucket which determines whether a user is in a bucket
on, off or control based on the value of
PopupsAnonsExperimentalGroupSize. Add tests showing how these
buckets are calculated.

Caution:
A kill switch wgPopupsEventLogging is provided for safety.
It defaults to false. Before merging, please check if any config changes
are necessary.

Bug: T171853
Change-Id: If2a0c5fceae78262c44cb522af38a925cc5919d3
2017-08-17 21:07:07 +00:00
joakin e6081106f1 Use EcmaScript modules instead of common.js modules
Why: Because they are the approved standard by TC39 and Ecma for
JavaScript modules.

Changes:
  * Wrap mw-node-qunit in run.js to register babel to transpile modules
    for node v6
  * Change all sources in src/ to use ES modules
    * Change constants.js to be able to run without
      jQuery.bracketedDevicePixelRatio given ES modules are hoisted to
      the top by spec so we can't patch globals before importing it
  * Change all tests in tests/node-qunit/ to use ES modules
  * Drop usage of mock-require given ES modules are easy to stub with
    sinon

Additional changes:
  * Rename tests/node-qunit/renderer.js to renderer.test.js to follow
    the convention of all the other files
  * Make npm run test:node run only .test.js test files so that it
    doesn't run the stubs.js or run.js file.

Bug: T171951
Change-Id: I17a0b76041d5e2fd18e2d54950d9d7c0db99a941
2017-07-31 23:05:44 +00:00
Sam Smith ba3c0b7f76 Hygiene: i13n: Return false over not sampling
Previously, if the browser didn't support the Beacon API, then
instrumentation/eventLogging#isEnabled would bucket the user with a
sampling rate of 0, which is equivalent to returning false. This change
simply does the latter.

Additional changes:
* Update the documented module names of the instrumentation/eventLogging
  and statsv modules.

Bug: T168847
Change-Id: I7ae5c10da42ca614b5b1a6619f9555e5665344cf
2017-07-26 17:06:58 +00:00
Piotr Miazga a82e54bf2d Override eventLogging to enabled when debug flag is on
In order to debug the EventLogging instrumentation in production
environments, we want to be able to bucket ourselves at will.
When the debug flag (?debug=true) is passed send all events
for given page view.

Bug: T168847
Change-Id: Id1b13b0ecaa791b4f26be4d1151bdbbe5270b64d
2017-06-30 18:52:51 +00:00
Sam Smith dcf8532cdf Hygiene: Group instrumentation modules
Following on from I4f653bba, since the schema and statsvInstrumentation
modules are similar, let's group/rename them:

  schema -> instrumentation/eventLogging
  statsvInstrumentation -> instrumentation/statsv

Change-Id: Ic59e0da7d4917f6733fd090f15d3c269af863f05
2017-06-20 11:41:37 +01:00