Jenny Messerly
c9e9c1d8e9
This disables most runtime features of dart:isolate, similar to dart:io. For now, this supports `new ReceivePort()` and `ReceivePort.close` as those are used by async tests to keep the Dart VM alive. Those are no-ops in DDC. Also removes most of dart:_isolate_helper, except for the JS API that's used to bootstrap DDC `main()`. Change-Id: I84eab6cd39d05a70a6afe982e952076ddaaa8c0f Reviewed-on: https://dart-review.googlesource.com/45754 Commit-Queue: Jenny Messerly <jmesserly@google.com> Reviewed-by: Vijay Menon <vsm@google.com>
Testing of source maps
This folder contains two types of tests for validating sourcemaps: the debugging behavior and the stacktrace behavior.
For both there are 2 suits: One for (legacy) DDC and one for DDC with kernel (DDK).
Running the tests likely requires the compilation of the correct targets. DDK currently also
requires ddc_sdk.dill inside
{sdkroot}/{out,xcodebuild}/ReleaseX64/gen/utils/dartdevc/kernel/ddc_sdk.dill.
Except for that, running them should simply be a matter of executing the *_suite.dart files.
All tests are plain Dart files and goes in "testfiles" (debugging tests) or "stacktrace_testfiles" (stacktrace tests). They are automatically picked up by the testing framework.
Debugging tests (step tests)
See README.md in pkg/sourcemap_testing.
Debugging a test
One can filter which tests are run by running (from the sourcemap folder):
dart sourcemaps_ddc_suite.dart -- sourcemaps_ddc//printing_class_fields
One can additionally get debug output for failing tests (i.e. tests with different outcome than expected), e.g.:
dart sourcemaps_ddc_suite.dart -Ddebug=true -- sourcemaps_ddc//printing_class_fields
The latter is also useful in combination with /*fail*/ when adding new tests to see all the places
where the debugger stopped (both in JS positions and translated to dart positions).
For instance -Ddebug=true -- sourcemaps_ddk//next_through_catch_test with a /*fail*/
currently gives output like the following:
Stop #1
test.main = function() { | main() {
try { | try {
let value = /*STOP*/"world"; | var value = /*STOP*/"world";
dart.throw(dart.str`Hello, ${value}`); | // Comment
} catch (e) { | throw "Hello, $value";
Stop #2
try { | var value = "world";
let value = "world"; | // Comment
/*STOP*/dart.throw(dart.str`Hello, ${value}`); | /*STOP*/throw "Hello, $value";
} catch (e) { | }
let st = dart.stackTrace(e); | // Comment
Stop #3
dart.throw(dart.str`Hello, ${value}`); | }
} catch (e) { | // Comment
let st = /*STOP*/dart.stackTrace(e); | catch (e, /*STOP*/st) {
{ | print(e);
core.print(e); | print(st);
[...]