Now we implement the "red background" end-to-end test exactly once.
While at it, start using a 800x600 window size, which is a bit more
realistic than 600x600, and will catch if we got either dimension wrong.
The interface only has two methods for now, but it will be expanded in
the future to also support input such as clicks.
Keeping state in the test driver, such as a context or a connection, is
a bit awkward but necessary so that we don't have to repeat arguments
over and over. The same applies to testing.T.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
chromedp was defaulting to log.Printf, which is not good for tests.
The xgb and xgbutil logs were suppressed if -v wasn't given, but they
were sent straight to os.Stderr otherwise:
=== RUN TestX11
=== PAUSE TestX11
=== CONT TestX11
XGB: conn.go:47: Could not get authority info: EOF
XGB: conn.go:48: Trying connection without authority info...
--- PASS: TestX11 (0.87s)
Instead, direct their loggers to an io.Writer implementation that sends
its output to t.Logf:
=== RUN TestX11
=== PAUSE TestX11
=== CONT TestX11
TestX11: x11_test.go:187: XGB: conn.go:47: Could not get authority info: EOF
TestX11: x11_test.go:187: XGB: conn.go:48: Trying connection without authority info...
--- PASS: TestX11 (0.86s)
We do end up with duplicate log prefixes, but at least we don't write
straight to stderr, which will be a problem as we add more concurrent
tests.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
On FreeBSD the X11 test seems to succeed except for the alpha
value:
--- FAIL: TestX11 (2.04s)
js_test.go:138: got 0xffff000000000000 at (5,5), want 0xffff00000000ffff
js_test.go:138: got 0xffff000000000000 at (595,595), want 0xffff00000000ffff
FAIL
Ignore alpha values for now.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Right now it's very similar to the JS test on Chrome. Like it, this one
just runs the "red.go" gio app, takes a screenshot, and expects to see
red.
It also supports the -headless flag; when true, Xvfb is used and it's
entirely headless and hidden. Otherwise, Xephyr is used and once can see
the test in action. If the tool isn't installed, the test is skipped.
We need to add xgb as a dependency, so that we can connect to the X
server and interact with it, like taking screenshots.
Finally, this is an initial version, and a number of TODOs are left for
a later time. They'll get fixed in follow-up patches.
While at it, start making all tests parallel, since the end-to-end tests
take about a second each and neither are very cpu-intensive.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
After some investigation, it turns out that both Alpine and Arch suffer
from the same bug - their packages completely lack SwiftShader.
The current workaround is still the best that we have right now. But at
least we can actually provide a good explanation why, and a TODO to
improve this once the issues filed with the distros are fixed.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
For example, if the browser doesn't have webgl at all, the gio app will
fail to load. This will result in the screenshot being incorrect,
without an apparent reason:
--- FAIL: TestJSOnChrome (0.89s)
js_test.go:122: got 0xffffffffffffffff at (5,5), want 0xffff00000000ffff
js_test.go:122: got 0xffffffffffffffff at (595,595), want 0xffff00000000ffff
The underlying webgl error was accessible if one added a sleep and ran
'go test -headless=false', allowing to open the console and see the
error messages.
Instead, capture them via chromedp and print them to the test's logger:
--- FAIL: TestJSOnChrome (0.89s)
js_test.go:79: console log: "2019/10/29 12:41:07 app: webgl is not supported"
js_test.go:79: console warning: "exit code:", 1
js_test.go:122: got 0xffffffffffffffff at (5,5), want 0xffff00000000ffff
js_test.go:122: got 0xffffffffffffffff at (595,595), want 0xffff00000000ffff
JS Exceptions are a completely different mechanism, so they're not
covered by this patch. We can add them at a later time if needed.
While at it, update to the latest tagged version of chromedp.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
First, add a headless boolean flag that defaults to true. That way, one
can run 'go test -headless=false' to, for example, see how Chrome runs
the webassembly endtoend test.
Second, skip the Chrome test if the browser isn't installed.
While at it, run 'gofmt -s' on the package.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
Package ui is now only about units except for the Config.Now method.
Remove Now and rename Config to Converter. Add layout.Config to
replace the old ui.Config.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit adds the first fully end-to-end test. It builds a very
simple Gio app, loads it on Chrome, and checks that it works.
To control Chrome, we use chromedp, a library in pure Go that takes care
of starting the browser and talking to it via the devtools protocol.
We add the test directly in the cmd module, since it mainly interacts
with the gogio tool, and also because the code might turn into some sort
of 'gogio test' command in the future. This does add chromedp and ui as
test dependencies to go.mod, but GOPROXY should allow a 'go get' of
gogio to not download their entire source code archives.
We don't replace ui with ../../ui in the go.mod, to ensure that testing
the cmd module works from anywhere without unintended differences.
The test app being used is inside a testdata directory, to ensure it's
not go-gettable, and that it doesn't otherwise affect the cmd module.
Finally, the test itself is pretty simple. The app just paints a red
background, and the test verifies that, once loaded, the background of
the browser viewport is indeed red.
The test does currently require Chrome or Chromium to be installed,
which is fine for now. It may also require a GPU, though I don't have a
headless machine to check for sure. The test uses Chrome in headless
mode though, so it doesn't open up any visible browser window.
All in all, the test succeeds in just over a second on my laptop with
Chromium 77.0.3865.75.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
Daniel Martí