coverage 0.3.1 coverage: ^0.3.1 copied to clipboard
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.