ff838bca89
Based on the [message format syntax](https://unicode-org.github.io/icu/userguide/format_parse/messages/#examples) for [ICU4J](https://unicode-org.github.io/icu-docs/apidoc/released/icu4j/com/ibm/icu/text/MessageFormat.html). This adds new syntax to the current Flutter messageFormat parser which should allow developers to add locale-specific date formatting. ## Usage example ``` "datetimeTest": "Today is {today, date, ::yMd}", "@datetimeTest": { "placeholders": { "today": { "description": "The date placeholder", "type": "DateTime" } } } ``` compiles to ``` String datetimeTest(DateTime today) { String _temp0 = intl.DateFormat.yMd(localeName).format(today); return 'Today is $_temp0'; } ``` Fixes https://github.com/flutter/flutter/issues/127304.
Integration tests
These tests are not hermetic, and use the actual Flutter SDK. While
they don't require actual devices, they run flutter_tester to test
Dart VM and Flutter integration.
Use this command to run (from the flutter_tools directory):
../../bin/cache/dart-sdk/bin/dart run test test/integration.shard
You need to have downloaded the Dart SDK in your Flutter clone for this
to work. Running ../../bin/flutter will automatically download it.
Coverage exclusion
These tests are expensive to run and do not give meaningful coverage
information for the flutter tool (since they are black-box tests that
run the tool as a subprocess, rather than being unit tests). For this
reason, they are in a separate shard when running on continuous
integration and are not run when calculating coverage.