Also rename TestPlatform.isDartVm to isDartVM to match the style guide
for two-letter acronyms.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1269833003 .

This will later be filled out with methods to aid in debugging.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1263503008 .

StreamQueue.fork and CancelableFuture will (hopefully) land in async,
but we're putting them here for now to avoid being blocked.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1262623006 .

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1263593005 .

Hooray for standard packages!

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1260253005 .

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1256833003 .

This class provides a place for runner-specific logic associated with a
suite that doesn't leak information to the backend code.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1258163002 .

Closes #304

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1258113004 .

Currently this only support windowed browsers and the runner can only be
unpaused from the command line.

See #294

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1248073003 .

Closes #302

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1254673002 .

This makes the tests cleaner and more concise, as well as providing more
information for debugging.

This gets rid of the "does not preserve state" browser tests, because it turns
out that they weren't actually doing anything anyway (otherwise IE would have
failed, since it *does* preserve state). It also adds tests for every browser
being able to run successful and failing tests.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1243293002 .

R=nweiz@google.com

Review URL: https://codereview.chromium.org//1247203002 .

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1240553004 .

It's always been weird that a Suite has a string representation of its platform,
and that that platform has no guarantee of actually reflecting the platform its
metadata has been resolved against. This cleans that up.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1239693002 .

Previously, we could try to send a message to the browser after the
WebSocket connection had already closed because of a signal.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1228943005 .

This is useful as an object because it provides all the private methods with
full access to the configuration, the engine, and the loader without having to
pass them around or create top-level variables. It also creates a cleaner
distinction between receiving a signal and closing various components.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1239613002 .

Closes #287

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1233023002 .

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1230983002 .

Previously, all errors were getting reported as part of the first suite
loaded in a given browser, and future suites were timing out. Now one
error is reported per suite.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1224423002 .

It turns out that comma is a shell-active character on Windows. This
makes it so that Windows users can copy-paste the invocation into their
shell and have it work.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1218173009.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1219073003.

The compact reporter was canceling a timer when it might not have been
initialized.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1214773003.

Closes #271

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1219653003.

If the tests were run with an absolute URL passed as --package-root (as
is true for `pub run` in 1.12), it would try to treat it as a path and
crash. Now it converts it from a URL before doing any path manipulation.

Closes #281

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1220913002.

Previously, the clock was only updated when a line was going to be
printed anyway, but that made it appear to stutter and not always keep
accurate time.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1212313005.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1214573002.

This helps ensure that the test runner won't run out of memory when
running many test suites that each load a large amount of code.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1206033004.

This class exposes the progress of a loading a test file in a way that can be
easily displayed by reporters. It also allows us to start running some tests while
others are still loading.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1196413003.

The previous CL shouldn't have been a release version, since this branch
still uses the Git version of the async package. There's now a new
branch for the 0.12.3+x releases, and this branch is going back to 0.12.4-dev.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1188123003.

We weren't properly converting a path to URL format, which mostly broke
Windows but could also break other operating systems if weird characters
were in the path.

See #277

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1196483002.

We weren't properly converting a path to URL format, which mostly broke
Windows but could also break other operating systems if weird characters
were in the path.

See #277

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1196483002.

Instead of providing all test suites to the Engine's constructor, the
engine now has a sink that can be used to add suites over time and
closed to indicate that no more suites are coming. This makes the use
pattern more flexible, and is a step towards supporting a live test
runner and to more memory efficiency.

Reporters no longer wrap the Engine. Instead, they expose a static
`watch` function which subscribes to the events the Engine emits.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1187103004.

The cleanup logic in the server was waiting for the browser to actually
connect to the browser manager, which caused the browser to exit before
the test runner knew that exit was allowed.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1179193003.

Closes #274

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1185203003.

This also ensures that a launcher that fails after being closed doesn't
break anything.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1175163003.

Rather than trying to keep up with the latest and greatest
implementations of Function.toString, this just avoids verifying the
function string values at all.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1180613008.

R=nweiz@google.com

Review URL: https://codereview.chromium.org//1182333002.

This captures some syntax errors that were previously falling by the wayside,
and cleans up some edge cases in displaying syntax errors in general.

R=kevmoo@google.com

Review URL: https://codereview.chromium.org//1172213002.