melbournedeveloper/dart_sdk_skills/run-dart-tests

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Run Dart SDK tests — language tests, corelib tests, analyzer tests, dart2js tests, and package-level tests. Use when running tests after building the SDK or verifying language changes.

Install

npx vskill@latest install melbournedeveloper/dart_sdk_skills/run-dart-tests

SKILL.md

Run Dart SDK Tests

Official docs: docs/Testing.md

Prerequisites

Build most and run_ffi_unit_tests before running tests:

bash
bash .claude/skills/build-dart-sdk/scripts/build.sh most run_ffi_unit_tests

Quick test

bash
# Run VM language tests (most common)
bash .claude/skills/run-dart-tests/scripts/test.sh language
 
# Run a single test
bash .claude/skills/run-dart-tests/scripts/test.sh language/record_spreads/record_spread_test
 
# Run corelib tests
bash .claude/skills/run-dart-tests/scripts/test.sh corelib

Test configurations

bash
# VM tests (default)
bash .claude/skills/run-dart-tests/scripts/test.sh language
 
# Analyzer tests
bash .claude/skills/run-dart-tests/scripts/test.sh --compiler dart2analyzer language
 
# dart2js tests
bash .claude/skills/run-dart-tests/scripts/test.sh --compiler dart2js --runtime chrome language
 
# DDC tests
bash .claude/skills/run-dart-tests/scripts/test.sh --compiler ddc --runtime chrome language

Package-level tests

For pure-Dart packages under pkg/, use the bootstrapping SDK directly:

bash
# Analyze a package
./tools/sdks/dart-sdk/bin/dart analyze pkg/front_end
 
# Run package tests
./tools/sdks/dart-sdk/bin/dart test pkg/analyzer
 
# Analyze with experiments enabled
./tools/sdks/dart-sdk/bin/dart analyze --enable-experiment=record-spreads pkg/front_end

Test suites

SuiteDirectoryWhat it tests
languagetests/language/Language feature tests (null-safe)
corelibtests/corelib/Core library tests
libtests/lib/SDK library tests
standalonetests/standalone/Standalone VM tests
webtests/web/Web-specific tests
ffitests/ffi/FFI tests
co19tests/co19/Dart spec compliance

Update static error test expectations

After changing error messages or locations:

bash
./tools/sdks/dart-sdk/bin/dart pkg/test_runner/tool/update_static_error_tests.dart -u "**/your_test.dart"

Update parser test expectations

After changing parser behavior:

bash
./tools/sdks/dart-sdk/bin/dart pkg/front_end/tool/update_expectations.dart

For test format details (multitests, static error tests), see test-formats.md.

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