This commit adds code coverage functionality to the node:test
module. When node:test is used in conjunction with the new
--test-coverage CLI flag, a coverage report is created when
the test runner finishes. The coverage summary is forwarded to
any test runner reporters so that the display can be customized
as desired. This new functionality is compatible with the
existing NODE_V8_COVERAGE environment variable as well.

There are still several limitations, which will be addressed in
subsequent pull requests:

- Coverage is only reported for a single process. It is possible
  to merge coverage reports together. Once this is done, the
  --test flag will be supported as well.
- Source maps are not currently supported.
- Excluding specific files or directories from the coverage
  report is not currently supported. Node core modules and
  node_modules/ are excluded though.

PR-URL: #46017
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Add experimental to the name as requested during review.

PR-URL: #46017
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Notable changes:

deps:
  * upgrade npm to 9.5.0 (npm team) #46673
  * add ada as a dependency (Yagiz Nizipli) #46410
doc:
  * add debadree25 to collaborators (Debadree Chatterjee) #46716
  * add deokjinkim to collaborators (Deokjin Kim) #46444
doc,lib,src,test:
  * rename --test-coverage (Colin Ihrig) #46017
lib:
  * (SEMVER-MINOR) add aborted() utility function (Debadree Chatterjee) #46494
src:
  * (SEMVER-MINOR) add initial support for single executable applications (Darshan Sen) #45038
  * (SEMVER-MINOR) allow optional Isolate termination in node::Stop() (Shelley Vohr) #46583
  * (SEMVER-MINOR) allow blobs in addition to `FILE*`s in embedder snapshot API (Anna Henningsen) #46491
  * (SEMVER-MINOR) allow snapshotting from the embedder API (Anna Henningsen) #45888
  * (SEMVER-MINOR) make build_snapshot a per-Isolate option, rather than a global one (Anna Henningsen) #45888
  * (SEMVER-MINOR) add snapshot support for embedder API (Anna Henningsen) #45888
  * (SEMVER-MINOR) allow embedder control of code generation policy (Shelley Vohr) #46368
stream:
  * (SEMVER-MINOR) add abort signal for ReadableStream and WritableStream (Debadree Chatterjee) #46273
test_runner:
  * add initial code coverage support (Colin Ihrig) #46017
url:
  * replace url-parser with ada (Yagiz Nizipli) #46410

PR-URL: TODO

Notable changes:

deps:
  * upgrade npm to 9.5.0 (npm team) #46673
  * add ada as a dependency (Yagiz Nizipli) #46410
doc:
  * add debadree25 to collaborators (Debadree Chatterjee) #46716
  * add deokjinkim to collaborators (Deokjin Kim) #46444
doc,lib,src,test:
  * rename --test-coverage (Colin Ihrig) #46017
lib:
  * (SEMVER-MINOR) add aborted() utility function (Debadree Chatterjee) #46494
src:
  * (SEMVER-MINOR) add initial support for single executable applications (Darshan Sen) #45038
  * (SEMVER-MINOR) allow optional Isolate termination in node::Stop() (Shelley Vohr) #46583
  * (SEMVER-MINOR) allow blobs in addition to `FILE*`s in embedder snapshot API (Anna Henningsen) #46491
  * (SEMVER-MINOR) allow snapshotting from the embedder API (Anna Henningsen) #45888
  * (SEMVER-MINOR) make build_snapshot a per-Isolate option, rather than a global one (Anna Henningsen) #45888
  * (SEMVER-MINOR) add snapshot support for embedder API (Anna Henningsen) #45888
  * (SEMVER-MINOR) allow embedder control of code generation policy (Shelley Vohr) #46368
stream:
  * (SEMVER-MINOR) add abort signal for ReadableStream and WritableStream (Debadree Chatterjee) #46273
test_runner:
  * add initial code coverage support (Colin Ihrig) #46017
url:
  * replace url-parser with ada (Yagiz Nizipli) #46410

PR-URL: #46725

Notable changes:

deps:
  * upgrade npm to 9.5.0 (npm team) nodejs#46673
  * add ada as a dependency (Yagiz Nizipli) nodejs#46410
doc:
  * add debadree25 to collaborators (Debadree Chatterjee) nodejs#46716
  * add deokjinkim to collaborators (Deokjin Kim) nodejs#46444
doc,lib,src,test:
  * rename --test-coverage (Colin Ihrig) nodejs#46017
lib:
  * (SEMVER-MINOR) add aborted() utility function (Debadree Chatterjee) nodejs#46494
src:
  * (SEMVER-MINOR) add initial support for single executable applications (Darshan Sen) nodejs#45038
  * (SEMVER-MINOR) allow optional Isolate termination in node::Stop() (Shelley Vohr) nodejs#46583
  * (SEMVER-MINOR) allow blobs in addition to `FILE*`s in embedder snapshot API (Anna Henningsen) nodejs#46491
  * (SEMVER-MINOR) allow snapshotting from the embedder API (Anna Henningsen) nodejs#45888
  * (SEMVER-MINOR) make build_snapshot a per-Isolate option, rather than a global one (Anna Henningsen) nodejs#45888
  * (SEMVER-MINOR) add snapshot support for embedder API (Anna Henningsen) nodejs#45888
  * (SEMVER-MINOR) allow embedder control of code generation policy (Shelley Vohr) nodejs#46368
stream:
  * (SEMVER-MINOR) add abort signal for ReadableStream and WritableStream (Debadree Chatterjee) nodejs#46273
test_runner:
  * add initial code coverage support (Colin Ihrig) nodejs#46017
url:
  * replace url-parser with ada (Yagiz Nizipli) nodejs#46410

PR-URL: nodejs#46725

Notable changes:

deps:
  * upgrade npm to 9.5.0 (npm team) #46673
  * add ada as a dependency (Yagiz Nizipli) #46410
doc:
  * add debadree25 to collaborators (Debadree Chatterjee) #46716
  * add deokjinkim to collaborators (Deokjin Kim) #46444
doc,lib,src,test:
  * rename --test-coverage (Colin Ihrig) #46017
lib:
  * (SEMVER-MINOR) add aborted() utility function (Debadree Chatterjee) #46494
src:
  * (SEMVER-MINOR) add initial support for single executable applications (Darshan Sen) #45038
  * (SEMVER-MINOR) allow optional Isolate termination in node::Stop() (Shelley Vohr) #46583
  * (SEMVER-MINOR) allow blobs in addition to `FILE*`s in embedder snapshot API (Anna Henningsen) #46491
  * (SEMVER-MINOR) allow snapshotting from the embedder API (Anna Henningsen) #45888
  * (SEMVER-MINOR) make build_snapshot a per-Isolate option, rather than a global one (Anna Henningsen) #45888
  * (SEMVER-MINOR) add snapshot support for embedder API (Anna Henningsen) #45888
  * (SEMVER-MINOR) allow embedder control of code generation policy (Shelley Vohr) #46368
stream:
  * (SEMVER-MINOR) add abort signal for ReadableStream and WritableStream (Debadree Chatterjee) #46273
test_runner:
  * add initial code coverage support (Colin Ihrig) #46017
url:
  * replace url-parser with ada (Yagiz Nizipli) #46410

PR-URL: #46725

Notable changes:

deps:
  * upgrade npm to 9.5.0 (npm team) #46673
  * add ada as a dependency (Yagiz Nizipli) #46410
doc:
  * add debadree25 to collaborators (Debadree Chatterjee) #46716
  * add deokjinkim to collaborators (Deokjin Kim) #46444
doc,lib,src,test:
  * rename --test-coverage (Colin Ihrig) #46017
lib:
  * (SEMVER-MINOR) add aborted() utility function (Debadree Chatterjee) #46494
src:
  * (SEMVER-MINOR) add initial support for single executable applications (Darshan Sen) #45038
  * (SEMVER-MINOR) allow optional Isolate termination in node::Stop() (Shelley Vohr) #46583
  * (SEMVER-MINOR) allow blobs in addition to `FILE*`s in embedder snapshot API (Anna Henningsen) #46491
  * (SEMVER-MINOR) allow snapshotting from the embedder API (Anna Henningsen) #45888
  * (SEMVER-MINOR) make build_snapshot a per-Isolate option, rather than a global one (Anna Henningsen) #45888
  * (SEMVER-MINOR) add snapshot support for embedder API (Anna Henningsen) #45888
  * (SEMVER-MINOR) allow embedder control of code generation policy (Shelley Vohr) #46368
stream:
  * (SEMVER-MINOR) add abort signal for ReadableStream and WritableStream (Debadree Chatterjee) #46273
test_runner:
  * add initial code coverage support (Colin Ihrig) #46017
url:
  * replace url-parser with ada (Yagiz Nizipli) #46410

PR-URL: #46725

Notable changes:

deps:
  * upgrade npm to 9.5.0 (npm team) #46673
  * add ada as a dependency (Yagiz Nizipli) #46410
doc:
  * add debadree25 to collaborators (Debadree Chatterjee) #46716
  * add deokjinkim to collaborators (Deokjin Kim) #46444
doc,lib,src,test:
  * rename --test-coverage (Colin Ihrig) #46017
lib:
  * (SEMVER-MINOR) add aborted() utility function (Debadree Chatterjee) #46494
src:
  * (SEMVER-MINOR) add initial support for single executable applications (Darshan Sen) #45038
  * (SEMVER-MINOR) allow optional Isolate termination in node::Stop() (Shelley Vohr) #46583
  * (SEMVER-MINOR) allow blobs in addition to `FILE*`s in embedder snapshot API (Anna Henningsen) #46491
  * (SEMVER-MINOR) allow snapshotting from the embedder API (Anna Henningsen) #45888
  * (SEMVER-MINOR) make build_snapshot a per-Isolate option, rather than a global one (Anna Henningsen) #45888
  * (SEMVER-MINOR) add snapshot support for embedder API (Anna Henningsen) #45888
  * (SEMVER-MINOR) allow embedder control of code generation policy (Shelley Vohr) #46368
stream:
  * (SEMVER-MINOR) add abort signal for ReadableStream and WritableStream (Debadree Chatterjee) #46273
test_runner:
  * add initial code coverage support (Colin Ihrig) #46017
url:
  * replace url-parser with ada (Yagiz Nizipli) #46410

PR-URL: #46725

Notable changes:

deps:
  * upgrade npm to 9.5.0 (npm team) #46673
  * add ada as a dependency (Yagiz Nizipli) #46410
doc:
  * add debadree25 to collaborators (Debadree Chatterjee) #46716
  * add deokjinkim to collaborators (Deokjin Kim) #46444
doc,lib,src,test:
  * rename --test-coverage (Colin Ihrig) #46017
lib:
  * (SEMVER-MINOR) add aborted() utility function (Debadree Chatterjee) #46494
src:
  * (SEMVER-MINOR) add initial support for single executable applications (Darshan Sen) #45038
  * (SEMVER-MINOR) allow optional Isolate termination in node::Stop() (Shelley Vohr) #46583
  * (SEMVER-MINOR) allow blobs in addition to `FILE*`s in embedder snapshot API (Anna Henningsen) #46491
  * (SEMVER-MINOR) allow snapshotting from the embedder API (Anna Henningsen) #45888
  * (SEMVER-MINOR) make build_snapshot a per-Isolate option, rather than a global one (Anna Henningsen) #45888
  * (SEMVER-MINOR) add snapshot support for embedder API (Anna Henningsen) #45888
  * (SEMVER-MINOR) allow embedder control of code generation policy (Shelley Vohr) #46368
stream:
  * (SEMVER-MINOR) add abort signal for ReadableStream and WritableStream (Debadree Chatterjee) #46273
test_runner:
  * add initial code coverage support (Colin Ihrig) #46017
url:
  * replace url-parser with ada (Yagiz Nizipli) #46410

PR-URL: #46725

This commit adds code coverage functionality to the node:test
module. When node:test is used in conjunction with the new
--test-coverage CLI flag, a coverage report is created when
the test runner finishes. The coverage summary is forwarded to
any test runner reporters so that the display can be customized
as desired. This new functionality is compatible with the
existing NODE_V8_COVERAGE environment variable as well.

There are still several limitations, which will be addressed in
subsequent pull requests:

- Coverage is only reported for a single process. It is possible
  to merge coverage reports together. Once this is done, the
  --test flag will be supported as well.
- Source maps are not currently supported.
- Excluding specific files or directories from the coverage
  report is not currently supported. Node core modules and
  node_modules/ are excluded though.

PR-URL: nodejs#46017
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Add experimental to the name as requested during review.

PR-URL: nodejs#46017
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

This commit adds code coverage functionality to the node:test
module. When node:test is used in conjunction with the new
--test-coverage CLI flag, a coverage report is created when
the test runner finishes. The coverage summary is forwarded to
any test runner reporters so that the display can be customized
as desired. This new functionality is compatible with the
existing NODE_V8_COVERAGE environment variable as well.

There are still several limitations, which will be addressed in
subsequent pull requests:

- Coverage is only reported for a single process. It is possible
  to merge coverage reports together. Once this is done, the
  --test flag will be supported as well.
- Source maps are not currently supported.
- Excluding specific files or directories from the coverage
  report is not currently supported. Node core modules and
  node_modules/ are excluded though.

PR-URL: nodejs#46017
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Add experimental to the name as requested during review.

PR-URL: nodejs#46017
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Add experimental to the name as requested during review.

PR-URL: nodejs#46017
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

This commit adds code coverage functionality to the node:test
module. When node:test is used in conjunction with the new
--test-coverage CLI flag, a coverage report is created when
the test runner finishes. The coverage summary is forwarded to
any test runner reporters so that the display can be customized
as desired. This new functionality is compatible with the
existing NODE_V8_COVERAGE environment variable as well.

There are still several limitations, which will be addressed in
subsequent pull requests:

- Coverage is only reported for a single process. It is possible
  to merge coverage reports together. Once this is done, the
  --test flag will be supported as well.
- Source maps are not currently supported.
- Excluding specific files or directories from the coverage
  report is not currently supported. Node core modules and
  node_modules/ are excluded though.

PR-URL: #46017
Backport-PR-URL: #46839
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Add experimental to the name as requested during review.

PR-URL: #46017
Backport-PR-URL: #46839
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Notable Changes:

buffer:
  * (SEMVER-MINOR) add isAscii method (Yagiz Nizipli) #46046
doc,lib,src,test:
  * rename --test-coverage (Colin Ihrig) #46017
fs:
  * (SEMVER-MINOR) add statfs() functions (Colin Ihrig) #46358
src,lib:
  * (SEMVER-MINOR) add constrainedMemory API for process (theanarkh) #46218
test_runner:
  * add initial code coverage support (Colin Ihrig) #46017
  * (SEMVER-MINOR) add reporters (Moshe Atlow) #45712
v8:
  * (SEMVER-MINOR) support gc profile (theanarkh) #46255
vm:
  * (SEMVER-MINOR) expose cachedDataRejected for vm.compileFunction (Anna Henningsen) #46320

PR-URL: #46920

This commit adds code coverage functionality to the node:test
module. When node:test is used in conjunction with the new
--test-coverage CLI flag, a coverage report is created when
the test runner finishes. The coverage summary is forwarded to
any test runner reporters so that the display can be customized
as desired. This new functionality is compatible with the
existing NODE_V8_COVERAGE environment variable as well.

There are still several limitations, which will be addressed in
subsequent pull requests:

- Coverage is only reported for a single process. It is possible
  to merge coverage reports together. Once this is done, the
  --test flag will be supported as well.
- Source maps are not currently supported.
- Excluding specific files or directories from the coverage
  report is not currently supported. Node core modules and
  node_modules/ are excluded though.

PR-URL: #46017
Backport-PR-URL: #46839
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Add experimental to the name as requested during review.

PR-URL: #46017
Backport-PR-URL: #46839
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>

Notable changes:

buffer:
  * (SEMVER-MINOR) add isAscii method (Yagiz Nizipli) #46046
doc,lib,src,test:
  * rename --test-coverage (Colin Ihrig) #46017
fs:
  * (SEMVER-MINOR) add statfs() functions (Colin Ihrig) #46358
src,lib:
  * (SEMVER-MINOR) add constrainedMemory API for process (theanarkh) #46218
test_runner:
  * add initial code coverage support (Colin Ihrig) #46017
  * (SEMVER-MINOR) add reporters (Moshe Atlow) #45712
v8:
  * (SEMVER-MINOR) support gc profile (theanarkh) #46255
vm:
  * (SEMVER-MINOR) expose cachedDataRejected for vm.compileFunction (Anna Henningsen) #46320

PR-URL: https://github.com/nodejs/node/pull/46920/commits

Notable changes:

buffer:
  * (SEMVER-MINOR) add isAscii method (Yagiz Nizipli) #46046
doc,lib,src,test:
  * rename --test-coverage (Colin Ihrig) #46017
fs:
  * (SEMVER-MINOR) add statfs() functions (Colin Ihrig) #46358
src,lib:
  * (SEMVER-MINOR) add constrainedMemory API for process (theanarkh) #46218
test_runner:
  * add initial code coverage support (Colin Ihrig) #46017
  * (SEMVER-MINOR) add reporters (Moshe Atlow) #45712
v8:
  * (SEMVER-MINOR) support gc profile (theanarkh) #46255
vm:
  * (SEMVER-MINOR) expose cachedDataRejected for vm.compileFunction (Anna Henningsen) #46320

PR-URL: #46920

Notable changes:

buffer:
  * (SEMVER-MINOR) add isAscii method (Yagiz Nizipli) #46046
doc,lib,src,test:
  * rename --test-coverage (Colin Ihrig) #46017
fs:
  * (SEMVER-MINOR) add statfs() functions (Colin Ihrig) #46358
src,lib:
  * (SEMVER-MINOR) add constrainedMemory API for process (theanarkh) #46218
test_runner:
  * add initial code coverage support (Colin Ihrig) #46017
  * (SEMVER-MINOR) add reporters (Moshe Atlow) #45712
v8:
  * (SEMVER-MINOR) support gc profile (theanarkh) #46255
vm:
  * (SEMVER-MINOR) expose cachedDataRejected for vm.compileFunction (Anna Henningsen) #46320

PR-URL: #46920

Notable changes:

buffer:
  * (SEMVER-MINOR) add isAscii method (Yagiz Nizipli) #46046
doc,lib,src,test:
  * rename --test-coverage (Colin Ihrig) #46017
fs:
  * (SEMVER-MINOR) add statfs() functions (Colin Ihrig) #46358
src,lib:
  * (SEMVER-MINOR) add constrainedMemory API for process (theanarkh) #46218
test_runner:
  * add initial code coverage support (Colin Ihrig) #46017
  * (SEMVER-MINOR) add reporters (Moshe Atlow) #45712
v8:
  * (SEMVER-MINOR) support gc profile (theanarkh) #46255
vm:
  * (SEMVER-MINOR) expose cachedDataRejected for vm.compileFunction (Anna Henningsen) #46320

PR-URL: #46920