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outdatedDart 1 only

Coverage data manipulation and formatting

Coverage #

Coverage provides coverage data collection, manipulation, and formatting for Dart.

Tools #

collect_coverage.dart collects coverage JSON from the Dart VM Observatory. format_coverage.dart formats JSON coverage data into either LCOV or pretty-printed format.

Collecting coverage from the VM

dart --enable-vm-service:NNNN --pin-isolates script.dart
dart bin/collect_coverage.dart --port=NNNN -o coverage.json --unpin-isolates

The --pin-isolates VM flag is used to prevent isolates from being cleaned up until coverage has been collected. collect_coverage.dart can be invoked before the VM from which coverage is to be collected, and will wait until it detects a VM observatory port. An optional --connect-timeout may be specified in in seconds.

Collecting coverage from Dartium

dartium --remote-debugging-port=NNNN
# execute code in Dartium
dart bin/collect_coverage.dart --port=NNNN -o coverage.json

As noted above, collect_coverage.dart may be invoked before Dartium, in which case it will wait until it detects a Dartium remote debugging port, up to the (optional) timeout.

Formatting coverage data

dart bin/format_coverage.dart --package-root=app_package_root -i coverage.json

where app_package_root is the package-root of the code whose coverage is being collected. If --sdk-root is set, Dart SDK coverage will also be output.

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Publisher

verified publishertools.dart.dev

Coverage data manipulation and formatting

Repository (GitHub)
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License

unknown (LICENSE)

Dependencies

args, http, path

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Packages that depend on coverage