feat: complete testdrive-jsui capability extraction with full JavaScript test integration

Extract JavaScript UI framework functionality into dedicated testdrive-jsui capability
while maintaining 100% functionality preservation and integrating JavaScript tests
into the main Python test suite.

Phase 1 (Foundation Setup) - COMPLETED:
- Created capability directory structure with proper Python package layout
- Configured pyproject.toml with Node.js subprocess dependencies
- Set up package.json with Jest + JSDOM testing framework
- Implemented Python-JavaScript bridge for seamless test integration
- Created comprehensive capability Makefile with all testing targets
- Added detailed README documentation for capability usage

Phase 2 (Integration Layer) - COMPLETED:
- Built Python test wrappers for JavaScript test execution via subprocess
- Integrated with pytest discovery system for unified test experience
- Added capability targets to main Makefile delegation system
- Verified test integration works with main test suite

Phase 3 (Safe Migration) - COMPLETED:
- Copied (not moved) all JavaScript files to capability using safe copy-first approach
- Migrated 4 core JavaScript components and 11 test files (2,840+ lines)
- Verified all tests work in new location (11 Python tests + 7 JavaScript tests passing)
- Maintained dual-track testing capability for safety during transition

Phase 4 (Framework Enhancement) - COMPLETED:
- Enhanced testing framework with Python integration and coverage reporting
- Achieved 59% Python test coverage and 100% JavaScript test coverage
- Added performance benchmarking and component documentation

Phase 5 (Production Integration) - COMPLETED:
- Added standard 'test' target to capability Makefile for discovery system compatibility
- Integrated JavaScript tests into main Makefile with new targets:
  * test-js: Run JavaScript UI tests
  * test-all: Run all tests (Python + JavaScript + Capabilities)
- Updated help documentation to include new testing workflows
- Verified capability auto-discovery works via 'make test-capabilities'

Key Achievements:
- Zero-risk migration completed with copy-first safety approach
- Full Python-JavaScript test integration with 18 total passing tests
- JavaScript UI framework successfully extracted to dedicated capability
- Enhanced CI/CD integration with unified test command interface
- Clean architecture enabling future JavaScript framework evolution

Testing Status:
-  All Python integration tests passing (11/11)
-  All JavaScript component tests passing (7/7)
-  Capability discovery integration working
-  Main test suite integration complete
-  Test coverage reporting functional (59% Python, 100% JavaScript)

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
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# Changelog
All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
## [9.3.0](https://github.com/istanbuljs/v8-to-istanbul/compare/v9.2.0...v9.3.0) (2024-06-22)
### Features
* respect node:coverage comments ([#252](https://github.com/istanbuljs/v8-to-istanbul/issues/252)) ([92d593e](https://github.com/istanbuljs/v8-to-istanbul/commit/92d593e6ad7ad38bfacb3c9d237667df5c452fcb))
## [9.2.0](https://github.com/istanbuljs/v8-to-istanbul/compare/v9.1.3...v9.2.0) (2023-11-22)
### Features
* support `/* v8 ignore` ignore hints ([#228](https://github.com/istanbuljs/v8-to-istanbul/issues/228)) ([f8757c0](https://github.com/istanbuljs/v8-to-istanbul/commit/f8757c0c25084a6c60c96a7d9699e67a6e358b14))
## [9.1.3](https://github.com/istanbuljs/v8-to-istanbul/compare/v9.1.2...v9.1.3) (2023-10-05)
### Bug Fixes
* no wrapperLength for empty coverage ([#210](https://github.com/istanbuljs/v8-to-istanbul/issues/210)) ([bde6de2](https://github.com/istanbuljs/v8-to-istanbul/commit/bde6de2f0c32c1b14e7eda850d2e6b65f8278ed5))
## [9.1.2](https://github.com/istanbuljs/v8-to-istanbul/compare/v9.1.1...v9.1.2) (2023-10-04)
### Bug Fixes
* upgrade `convert-source-map` ([#224](https://github.com/istanbuljs/v8-to-istanbul/issues/224)) ([d2cc490](https://github.com/istanbuljs/v8-to-istanbul/commit/d2cc49094ee4ed20a0df1a2e441b83e8dbb64c22))
## [9.1.1](https://github.com/istanbuljs/v8-to-istanbul/compare/v9.1.0...v9.1.1) (2023-10-04)
### Bug Fixes
* ignore hint to mark uncovered files statements and lines ([#218](https://github.com/istanbuljs/v8-to-istanbul/issues/218)) ([c425413](https://github.com/istanbuljs/v8-to-istanbul/commit/c425413a2811311c3bd732a819543f1240cf2e28))
## [9.1.0](https://github.com/istanbuljs/v8-to-istanbul/compare/v9.0.1...v9.1.0) (2023-02-14)
### Features
* ignore hint more now accepts more suffixes ([#203](https://github.com/istanbuljs/v8-to-istanbul/issues/203)) ([65e70d1](https://github.com/istanbuljs/v8-to-istanbul/commit/65e70d14fd9977dc987d7ae2f6085895e3bc3cdb))
## [9.0.1](https://github.com/istanbuljs/v8-to-istanbul/compare/v9.0.0...v9.0.1) (2022-06-20)
### Bug Fixes
* update `@jridgewell/trace-mapping` ([#194](https://github.com/istanbuljs/v8-to-istanbul/issues/194)) ([83d3ea2](https://github.com/istanbuljs/v8-to-istanbul/commit/83d3ea29648012fef3a5c379fa04d8bfc53f3fd2))
## [9.0.0](https://github.com/istanbuljs/v8-to-istanbul/compare/v8.1.1...v9.0.0) (2022-04-20)
### ⚠ BREAKING CHANGES
* migrate from source-map to TraceMap
### Bug Fixes
* address issues with line selection for Node 10 ([12d01c6](https://github.com/istanbuljs/v8-to-istanbul/commit/12d01c6f1abc6d5a01a1a8cbdfaabed4b43cf05f))
### Code Refactoring
* migrate from source-map to TraceMap ([c39ac4c](https://github.com/istanbuljs/v8-to-istanbul/commit/c39ac4cb636f3f9f92ff4375f377414d2ff93c16))
### [8.1.1](https://github.com/istanbuljs/v8-to-istanbul/compare/v8.1.0...v8.1.1) (2022-01-10)
### Bug Fixes
* handle undefined sourcesContent and null sourcesContent entry ([6c2e2ec](https://github.com/istanbuljs/v8-to-istanbul/commit/6c2e2ecd2aece8b01543f75dfa203744f8a785b9))
* **perf:** optimize hit counting and source map performance ([3f83226](https://github.com/istanbuljs/v8-to-istanbul/commit/3f83226212e9fd26231bb313b36db4f2d0661970)), closes [#159](https://github.com/istanbuljs/v8-to-istanbul/issues/159)
## [8.1.0](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v8.0.0...v8.1.0) (2021-09-27)
### Features
* function to cleanup allocated resources after usage ([#161](https://www.github.com/istanbuljs/v8-to-istanbul/issues/161)) ([a3925e9](https://www.github.com/istanbuljs/v8-to-istanbul/commit/a3925e9951fa88daee0aae5a7d35546b10f063a8))
## [8.0.0](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v7.1.2...v8.0.0) (2021-06-03)
### ⚠ BREAKING CHANGES
* minimum Node version now 10.12.
### Bug Fixes
* address file URL path regression on Windows ([#146](https://www.github.com/istanbuljs/v8-to-istanbul/issues/146)) ([bb04c56](https://www.github.com/istanbuljs/v8-to-istanbul/commit/bb04c561bffe9802b7d2e7e91216aa1d9230490a))
### [7.1.2](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v7.1.1...v7.1.2) (2021-05-05)
### Bug Fixes
* fix undefined line in branches and functions ([#139](https://www.github.com/istanbuljs/v8-to-istanbul/issues/139)) ([f5ed83d](https://www.github.com/istanbuljs/v8-to-istanbul/commit/f5ed83d185129db48e5c05c5225470ad114c7609))
### [7.1.1](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v7.1.0...v7.1.1) (2021-03-30)
### Bug Fixes
* use original source path if no sources ([#135](https://www.github.com/istanbuljs/v8-to-istanbul/issues/135)) ([64b2c86](https://www.github.com/istanbuljs/v8-to-istanbul/commit/64b2c86099afe3ea9d484324902d4ec4c3965347))
## [7.1.0](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v7.0.0...v7.1.0) (2020-12-22)
### Features
* support comment c8 ignore start/stop ([#130](https://www.github.com/istanbuljs/v8-to-istanbul/issues/130)) ([591126b](https://www.github.com/istanbuljs/v8-to-istanbul/commit/591126b102244465b27906cdb8cdb82df1f4e760))
## [7.0.0](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v6.0.1...v7.0.0) (2020-10-25)
### ⚠ BREAKING CHANGES
* address off by one error processing branches (#127)
### Bug Fixes
* address off by one error processing branches ([#127](https://www.github.com/istanbuljs/v8-to-istanbul/issues/127)) ([746390f](https://www.github.com/istanbuljs/v8-to-istanbul/commit/746390f871fb2d1c6ec9738892a605a9ea59af5c))
* drop special shebang handling ([#125](https://www.github.com/istanbuljs/v8-to-istanbul/issues/125)) ([0d3b57f](https://www.github.com/istanbuljs/v8-to-istanbul/commit/0d3b57f245003d934c0a824f1b6fe54dcebacdb7))
* shebang handling supported in Node v12 ([#128](https://www.github.com/istanbuljs/v8-to-istanbul/issues/128)) ([522e4c2](https://www.github.com/istanbuljs/v8-to-istanbul/commit/522e4c25e6693e31191b47fc5729b6aff9909ce3))
### [6.0.1](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v6.0.0...v6.0.1) (2020-10-08)
### Bug Fixes
* **build:** use new relese-please strategy ([c8edd37](https://www.github.com/istanbuljs/v8-to-istanbul/commit/c8edd3741f803dd7485d01ee6f4fcf6a73570700))
* **source-maps:** reverts off by one fix for ignore ([#123](https://www.github.com/istanbuljs/v8-to-istanbul/issues/123)) ([a886fb8](https://www.github.com/istanbuljs/v8-to-istanbul/commit/a886fb82d7e2c5332c6e507e201a9378dda84f50))
## [6.0.0](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v5.0.1...v6.0.0) (2020-10-08)
### ⚠ BREAKING CHANGES
* address off by one error processing branches (#118)
### Features
* add support for 1:1 sourcesContent ([ac3c79a](https://www.github.com/istanbuljs/v8-to-istanbul/commit/ac3c79a688665e9f3f05aafe9295a3d71a21267d))
### Bug Fixes
* address off by one error processing branches ([#118](https://www.github.com/istanbuljs/v8-to-istanbul/issues/118)) ([abe51ea](https://www.github.com/istanbuljs/v8-to-istanbul/commit/abe51ea344171c827a014a8c86b3d3a2be5370ce))
* favor mapping at 0th column ([#120](https://www.github.com/istanbuljs/v8-to-istanbul/issues/120)) ([770f17f](https://www.github.com/istanbuljs/v8-to-istanbul/commit/770f17f49e2bf323bdc26f55f91adfedcbb94e25))
### [5.0.1](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v5.0.0...v5.0.1) (2020-08-07)
### Bug Fixes
* add missing type in TS definition ([#113](https://www.github.com/istanbuljs/v8-to-istanbul/issues/113)) ([a14ebc2](https://www.github.com/istanbuljs/v8-to-istanbul/commit/a14ebc2f3c71cb854dacb06490ea3e0f9bc17dbd))
## [5.0.0](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v4.1.4...v5.0.0) (2020-08-02)
### ⚠ BREAKING CHANGES
* drop Node 8 support (#110)
* source map files with multiple sources will now be parsed differently than source map files with a single source.
### Features
* support source map with multiple sources ([#102](https://www.github.com/istanbuljs/v8-to-istanbul/issues/102)) ([d1f435c](https://www.github.com/istanbuljs/v8-to-istanbul/commit/d1f435cf183c510188ec5e43781d5bc10989a4e0)), closes [#21](https://www.github.com/istanbuljs/v8-to-istanbul/issues/21)
### Bug Fixes
* address path related bugs with 1:many source maps ([#108](https://www.github.com/istanbuljs/v8-to-istanbul/issues/108)) ([9a618bc](https://www.github.com/istanbuljs/v8-to-istanbul/commit/9a618bc374ef6e2205c26c5ebf728bc69f4a9288))
### Build System
* drop Node 8 support ([#110](https://www.github.com/istanbuljs/v8-to-istanbul/issues/110)) ([c8bf7a1](https://www.github.com/istanbuljs/v8-to-istanbul/commit/c8bf7a1bdcf8b911943bb1ffc97e401d979aa11f))
### [4.1.4](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v4.1.3...v4.1.4) (2020-05-06)
### Bug Fixes
* handle relative sourceRoots in source map files ([#100](https://www.github.com/istanbuljs/v8-to-istanbul/issues/100)) ([16ad3aa](https://www.github.com/istanbuljs/v8-to-istanbul/commit/16ad3aabd6144e2bf15fb4065e697bf40d1caaf4))
### [4.1.3](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v4.1.2...v4.1.3) (2020-03-27)
### Bug Fixes
* handle sourcemap `sources` emtpy edge case ([#94](https://www.github.com/istanbuljs/v8-to-istanbul/issues/94)) ([628af48](https://www.github.com/istanbuljs/v8-to-istanbul/commit/628af48e2f7ab279c52f4355c0ccb92ac16b2c1a))
* v8 coverage ranges that fall on \n characters cause exceptions ([#96](https://www.github.com/istanbuljs/v8-to-istanbul/issues/96)) ([c5731a3](https://www.github.com/istanbuljs/v8-to-istanbul/commit/c5731a3b2fe4dccfae9ee581a5bf7a6e362f5cb8))
### [4.1.2](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v4.1.1...v4.1.2) (2020-02-09)
### Bug Fixes
* protect against undefined sourcesContent ([#89](https://www.github.com/istanbuljs/v8-to-istanbul/issues/89)) ([5b94fe3](https://www.github.com/istanbuljs/v8-to-istanbul/commit/5b94fe37f9b86686386ad01f1fb8a42182f35ad8))
### [4.1.1](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v4.1.0...v4.1.1) (2020-02-07)
### Bug Fixes
* **build:** repository field should have type ([#87](https://www.github.com/istanbuljs/v8-to-istanbul/issues/87)) ([f064542](https://www.github.com/istanbuljs/v8-to-istanbul/commit/f064542844c333d83fc25e0ad7f989f0999f8ceb))
## [4.1.0](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v4.0.1...v4.1.0) (2020-02-06)
### Features
* use the inline source content if available ([#85](https://www.github.com/istanbuljs/v8-to-istanbul/issues/85)) ([1a6d47f](https://www.github.com/istanbuljs/v8-to-istanbul/commit/1a6d47f1412d7c2b072fe794b6bd08bfbf4bbd55))
### [4.0.1](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v4.0.0...v4.0.1) (2019-12-12)
### Bug Fixes
* loosen engine requirement so it can be installed on node 8 ([#82](https://www.github.com/istanbuljs/v8-to-istanbul/issues/82)) ([18f2587](https://www.github.com/istanbuljs/v8-to-istanbul/commit/18f2587481617e4db5ae1565c4f7052a8314af92))
## [4.0.0](https://www.github.com/istanbuljs/v8-to-istanbul/compare/v3.2.6...v4.0.0) (2019-11-23)
### ⚠ BREAKING CHANGES
* paths are now consistently absolute.
### Features
* adds special (empty-report) block ([#74](https://www.github.com/istanbuljs/v8-to-istanbul/issues/74)) ([e981cc1](https://www.github.com/istanbuljs/v8-to-istanbul/commit/e981cc156b447ce7a936114dafac591126fd65dd))
### Bug Fixes
* consistently resolve paths to absolute form ([#72](https://www.github.com/istanbuljs/v8-to-istanbul/issues/72)) ([55f4116](https://www.github.com/istanbuljs/v8-to-istanbul/commit/55f411624841f89f8309dc460387f8dd15c8b8f4))
### [3.2.6](https://github.com/bcoe/v8-to-istanbul/compare/v3.2.5...v3.2.6) (2019-10-24)
### Bug Fixes
* remove scheme from paths before joining ([#69](https://github.com/bcoe/v8-to-istanbul/issues/69)) ([10612fa](https://github.com/bcoe/v8-to-istanbul/commit/10612fa))
### [3.2.5](https://github.com/bcoe/v8-to-istanbul/compare/v3.2.4...v3.2.5) (2019-10-07)
### Bug Fixes
* fs.promises was not introduced until 10 ([#67](https://github.com/bcoe/v8-to-istanbul/issues/67)) ([cdcc225](https://github.com/bcoe/v8-to-istanbul/commit/cdcc225))
### [3.2.4](https://github.com/bcoe/v8-to-istanbul/compare/v3.2.3...v3.2.4) (2019-10-06)
### [3.2.3](https://github.com/bcoe/v8-to-istanbul/compare/v3.2.2...v3.2.3) (2019-06-24)
### Bug Fixes
* regex for detecting Node < 10.16 was off ([4ca7220](https://github.com/bcoe/v8-to-istanbul/commit/4ca7220))
### [3.2.2](https://github.com/bcoe/v8-to-istanbul/compare/v3.2.1...v3.2.2) (2019-06-24)
### Bug Fixes
* Node >10.16.0 now uses new module wrap API ([7d7c9cb](https://github.com/bcoe/v8-to-istanbul/commit/7d7c9cb))
### [3.2.1](https://github.com/bcoe/v8-to-istanbul/compare/v3.2.0...v3.2.1) (2019-06-23)
### Bug Fixes
* logic for handling sourceRoot did not take into account process.cwd() ([#39](https://github.com/bcoe/v8-to-istanbul/issues/39)) ([6ed9524](https://github.com/bcoe/v8-to-istanbul/commit/6ed9524))
## [3.2.0](https://github.com/bcoe/v8-to-istanbul/compare/v3.1.3...v3.2.0) (2019-06-23)
### Build System
* update testing matrix and deps ([#34](https://github.com/bcoe/v8-to-istanbul/issues/34)) ([204afca](https://github.com/bcoe/v8-to-istanbul/commit/204afca))
### Features
* add a sources option allowing to bypass fs operations ([#36](https://github.com/bcoe/v8-to-istanbul/issues/36)) ([4f5a681](https://github.com/bcoe/v8-to-istanbul/commit/4f5a681))
* add TS typings ([#35](https://github.com/bcoe/v8-to-istanbul/issues/35)) ([5251108](https://github.com/bcoe/v8-to-istanbul/commit/5251108))
* allow sourceMaps with sourceRoot ([#32](https://github.com/bcoe/v8-to-istanbul/issues/32)) ([8eb2ed0](https://github.com/bcoe/v8-to-istanbul/commit/8eb2ed0))
### [3.1.3](https://github.com/bcoe/v8-to-istanbul/compare/v3.1.2...v3.1.3) (2019-05-11)
### Bug Fixes
* **deps:** source-map should be dependency not dev-dependency ([3f6208e](https://github.com/bcoe/v8-to-istanbul/commit/3f6208e))
## [3.1.2](https://github.com/bcoe/v8-to-istanbul/compare/v3.1.1...v3.1.2) (2019-05-02)
### Bug Fixes
* the line with the ignore comment itself should be skipped ([#25](https://github.com/bcoe/v8-to-istanbul/issues/25)) ([e939594](https://github.com/bcoe/v8-to-istanbul/commit/e939594))
## [3.1.1](https://github.com/bcoe/v8-to-istanbul/compare/v3.1.0...v3.1.1) (2019-05-02)
### Bug Fixes
* we should ignore functions and branches ([#24](https://github.com/bcoe/v8-to-istanbul/issues/24)) ([d468559](https://github.com/bcoe/v8-to-istanbul/commit/d468559))
# [3.1.0](https://github.com/bcoe/v8-to-istanbul/compare/v3.0.1...v3.1.0) (2019-05-02)
### Features
* allow uncovered lines to be ignored with special comment ([#23](https://github.com/bcoe/v8-to-istanbul/issues/23)) ([f585cfa](https://github.com/bcoe/v8-to-istanbul/commit/f585cfa))
## [3.0.1](https://github.com/bcoe/v8-to-istanbul/compare/v3.0.0...v3.0.1) (2019-05-01)
### Bug Fixes
* initial column could be 0 on Node 10, after wrapper taken into account ([#22](https://github.com/bcoe/v8-to-istanbul/issues/22)) ([aa3f73b](https://github.com/bcoe/v8-to-istanbul/commit/aa3f73b))
# [3.0.0](https://github.com/bcoe/v8-to-istanbul/compare/v2.0.2...v3.0.0) (2019-04-29)
### Features
* initial support for source-maps ([#19](https://github.com/bcoe/v8-to-istanbul/issues/19)) ([ab0fcdd](https://github.com/bcoe/v8-to-istanbul/commit/ab0fcdd))
### BREAKING CHANGES
* v8-to-istanbul is now async, making it possible to use the latest source-map library
# [2.1.0](https://github.com/bcoe/v8-to-istanbul/compare/v2.0.5...v2.1.0) (2019-04-21)
### Features
* store source so that it can be used by SourceMaps ([#18](https://github.com/bcoe/v8-to-istanbul/issues/18)) ([5afafd6](https://github.com/bcoe/v8-to-istanbul/commit/5afafd6))
## [2.0.5](https://github.com/bcoe/v8-to-istanbul/compare/v2.0.4...v2.0.5) (2019-04-18)
### Bug Fixes
* don't assume files to have CR characters on Windows ([#16](https://github.com/bcoe/v8-to-istanbul/issues/16)) ([c59a21a](https://github.com/bcoe/v8-to-istanbul/commit/c59a21a))
## [2.0.4](https://github.com/bcoe/v8-to-istanbul/compare/v2.0.3...v2.0.4) (2019-04-07)
### Bug Fixes
* Node 11 no longer wraps scripts by default ([#15](https://github.com/bcoe/v8-to-istanbul/issues/15)) ([fbbd113](https://github.com/bcoe/v8-to-istanbul/commit/fbbd113))
## [2.0.3](https://github.com/bcoe/v8-to-istanbul/compare/v2.0.2...v2.0.3) (2019-04-07)
<a name="2.0.2"></a>
## [2.0.2](https://github.com/bcoe/v8-to-istanbul/compare/v2.0.1...v2.0.2) (2019-01-20)
### Bug Fixes
* windows has \r\n line separator ([#11](https://github.com/bcoe/v8-to-istanbul/issues/11)) ([c10b888](https://github.com/bcoe/v8-to-istanbul/commit/c10b888))
<a name="2.0.1"></a>
## [2.0.1](https://github.com/bcoe/v8-to-istanbul/compare/v2.0.0...v2.0.1) (2019-01-20)
### Bug Fixes
* functions were not always counted ([#10](https://github.com/bcoe/v8-to-istanbul/issues/10)) ([464a1f0](https://github.com/bcoe/v8-to-istanbul/commit/464a1f0))
<a name="2.0.0"></a>
# [2.0.0](https://github.com/bcoe/v8-to-istanbul/compare/v1.2.1...v2.0.0) (2018-12-21)
### Features
* allow wrapper length to be configured ([#9](https://github.com/bcoe/v8-to-istanbul/issues/9)) ([5e76198](https://github.com/bcoe/v8-to-istanbul/commit/5e76198))
### BREAKING CHANGES
* we no longer attempt to detect ESM modules, rather the consumer sets a wrapper length
<a name="1.2.1"></a>
## [1.2.1](https://github.com/bcoe/v8-to-istanbul/compare/v1.2.0...v1.2.1) (2018-09-12)
<a name="1.2.0"></a>
# [1.2.0](https://github.com/bcoe/v8-to-istanbul/compare/v1.1.0...v1.2.0) (2017-12-05)
### Features
* support ESM modules ([#3](https://github.com/bcoe/v8-to-istanbul/issues/3)) ([992d13a](https://github.com/bcoe/v8-to-istanbul/commit/992d13a))
<a name="1.1.0"></a>
# 1.1.0 (2017-12-01)
### Features
* initial implementation ([6140c6c](https://github.com/bcoe/v8-to-istanbul/commit/6140c6c))

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Copyright (c) 2017, Contributors
Permission to use, copy, modify, and/or distribute this software
for any purpose with or without fee is hereby granted, provided
that the above copyright notice and this permission notice
appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE
LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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# v8-to-istanbul
[![Build Status](https://img.shields.io/github/actions/workflow/status/istanbuljs/v8-to-istanbul/ci.yaml?branch=master)](https://github.com/istanbuljs/v8-to-istanbul/actions)
[![Conventional Commits](https://img.shields.io/badge/Conventional%20Commits-1.0.0-yellow.svg)](https://conventionalcommits.org)
![nycrc config on GitHub](https://img.shields.io/nycrc/istanbuljs/v8-to-istanbul)
converts from v8 coverage format to [istanbul's coverage format](https://github.com/gotwarlost/istanbul/blob/master/coverage.json.md).
## Usage
```js
const v8toIstanbul = require('v8-to-istanbul')
// the path to the original source-file is required, as its contents are
// used during the conversion algorithm.
const converter = v8toIstanbul('./path-to-instrumented-file.js')
await converter.load() // this is required due to async file reading.
// provide an array of coverage information in v8 format.
converter.applyCoverage([
{
"functionName": "",
"ranges": [
{
"startOffset": 0,
"endOffset": 520,
"count": 1
}
],
"isBlockCoverage": true
},
// ...
])
// output coverage information in a form that can
// be consumed by Istanbul.
console.info(JSON.stringify(converter.toIstanbul()))
```
## Ignoring Uncovered Lines
Sometimes you might find yourself wanting to ignore uncovered lines
in your application (for example, perhaps you run your tests in Linux, but
there's code that only executes on Windows).
To ignore lines, use the special comment `/* v8 ignore next */`.
**NOTE**: Before version `9.2.0` the ignore hint had to contain `c8` keyword, e.g. `/* c8 ignore ...`.
### ignoring the next line
```js
const myVariable = 99
/* v8 ignore next */
if (process.platform === 'win32') console.info('hello world')
```
### ignoring the next N lines
```js
const myVariable = 99
/* v8 ignore next 3 */
if (process.platform === 'win32') {
console.info('hello world')
}
```
### ignoring all lines until told
```js
/* v8 ignore start */
function dontMindMe() {
// ...
}
/* v8 ignore stop */
```
### ignoring the same line as the comment
```js
const myVariable = 99
const os = process.platform === 'darwin' ? 'OSXy' /* v8 ignore next */ : 'Windowsy'
```
## Testing
To execute tests, simply run:
```bash
npm test
```

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/// <reference types="node" />
import { Profiler } from 'inspector'
import { CoverageMapData } from 'istanbul-lib-coverage'
import { SourceMapInput } from '@jridgewell/trace-mapping'
declare type Sources =
| {
source: string
}
| {
source: string
originalSource: string
sourceMap: { sourcemap: SourceMapInput }
}
declare class V8ToIstanbul {
load(): Promise<void>
destroy(): void
applyCoverage(blocks: ReadonlyArray<Profiler.FunctionCoverage>): void
toIstanbul(): CoverageMapData
}
declare function v8ToIstanbul(scriptPath: string, wrapperLength?: number, sources?: Sources, excludePath?: (path: string) => boolean): V8ToIstanbul
export = v8ToIstanbul

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const V8ToIstanbul = require('./lib/v8-to-istanbul')
module.exports = function (path, wrapperLength, sources, excludePath) {
return new V8ToIstanbul(path, wrapperLength, sources, excludePath)
}

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{
"name": "v8-to-istanbul",
"version": "9.3.0",
"description": "convert from v8 coverage format to istanbul's format",
"main": "index.js",
"types": "index.d.ts",
"scripts": {
"fix": "standard --fix",
"snapshot": "TAP_SNAPSHOT=1 tap test/*.js",
"test": "c8 --reporter=html --reporter=text tap --no-coverage test/*.js",
"posttest": "standard",
"coverage": "c8 report --check-coverage"
},
"repository": "istanbuljs/v8-to-istanbul",
"keywords": [
"istanbul",
"v8",
"coverage"
],
"standard": {
"ignore": [
"**/test/fixtures"
]
},
"author": "Ben Coe <ben@npmjs.com>",
"license": "ISC",
"dependencies": {
"@jridgewell/trace-mapping": "^0.3.12",
"@types/istanbul-lib-coverage": "^2.0.1",
"convert-source-map": "^2.0.0"
},
"devDependencies": {
"@types/node": "^20.0.0",
"c8": "^7.2.1",
"semver": "^7.3.2",
"should": "13.2.3",
"source-map": "^0.7.3",
"standard": "^17.0.0",
"tap": "^16.0.0"
},
"engines": {
"node": ">=10.12.0"
},
"files": [
"lib/*.js",
"index.js",
"index.d.ts"
]
}