This commit is replacing the system specs driver (selenium) by
Playwright: https://playwright.dev/
We are still using Capybara to write the specs but they will now be run
by Playwright. To achieve this we are using the non official ruby
driver: https://github.com/YusukeIwaki/capybara-playwright-driver
### Notable changes
- `CHROME_DEV_TOOLS` has been removed, it's not working well with
playwright use `pause_test` and inspect browser for now.
- `fill_in` is not generating key events in playwright, use `send_keys`
if you need this.
### New spec options
#### trace
Allows to capture a trace in a zip file which you can load at
https://trace.playwright.dev or locally through `npx playwright
show-trace /path/to/trace.zip`
_Example usage:_
```ruby
it "shows bar", trace: true do
visit("/")
find(".foo").click
expect(page).to have_css(".bar")
end
```
#### video
Allows to capture a video of your spec.
_Example usage:_
```ruby
it "shows bar", video: true do
visit("/")
find(".foo").click
expect(page).to have_css(".bar")
end
```
### New env variable
#### PLAYWRIGHT_SLOW_MO_MS
Allow to force playwright to wait DURATION (in ms) at each action.
_Example usage:_
```
PLAYWRIGHT_SLOW_MO_MS=1000 rspec foo_spec.rb
```
#### PLAYWRIGHT_HEADLESS
Allow to be in headless mode or not. Default will be headless.
_Example usage:_
```
PLAYWRIGHT_HEADLESS=0 rspec foo_spec.rb # will show the browser
```
### New helpers
#### with_logs
Allows to access the browser logs and check if something specific has
been logged.
_Example usage:_
```ruby
with_logs do |logger|
# do something
expect(logger.logs.map { |log| log[:message] }).to include("foo")
end
```
#### add_cookie
Allows to add a cookie on the browser session.
_Example usage:_
```ruby
add_cookie(name: "destination_url", value: "/new")
```
#### get_style
Get the property style value of an element.
_Example usage:_
```ruby
expect(get_style(find(".foo"), "height")).to eq("200px")
```
#### get_rgb_color
Get the rgb color of an element.
_Example usage:_
```ruby
expect(get_rgb_color(find("html"), "backgroundColor")).to eq("rgb(170, 51, 159)")
```
Followup 2f2da7274732cba30d03b6c5c3a4194652cb6783
This commit moves topic view tracking from happening
every time a Topic is requested, which is susceptible
to inflating numbers of views from web crawlers, to
our request tracker middleware.
In this new location, topic views are only tracked when
the following headers are sent:
* HTTP_DISCOURSE_TRACK_VIEW - This is sent on every page navigation when
clicking around the ember app. We count these as browser page views
because we know it comes from the AJAX call in our app. The topic ID
is extracted from HTTP_DISCOURSE_TRACK_VIEW_TOPIC_ID
* HTTP_DISCOURSE_DEFERRED_TRACK_VIEW - Sent when MessageBus initializes
after first loading the page to count the initial page load view. The
topic ID is extracted from HTTP_DISCOURSE_DEFERRED_TRACK_VIEW.
This will bring topic views more in line with the change we
made to page views in the referenced commit and result in
more realistic topic view counts.
Our 'page_view_crawler' / 'page_view_anon' metrics are based purely on the User Agent sent by clients. This means that 'badly behaved' bots which are imitating real user agents are counted towards 'anon' page views.
This commit introduces a new method of tracking visitors. When an initial HTML request is made, we assume it is a 'non-browser' request (i.e. a bot). Then, once the JS application has booted, we notify the server to count it as a 'browser' request. This reliance on a JavaScript-capable browser matches up more closely to dedicated analytics systems like Google Analytics.
Existing data collection and graphs are unchanged. Data collected via the new technique is available in a new 'experimental' report.
