test_runner: support function mocking #45326

cjihrig · 2022-11-05T05:00:38Z

This commit allows tests in the test runner to mock functions and methods.

lib/internal/test_runner/mock.js

lib/internal/test_runner/test.js

lib/test.js

MoLow · 2022-11-05T17:43:34Z

I wonder if this should be part of CallTracker, the basic functionality already exists there.

cjihrig · 2022-11-05T17:53:53Z

I wonder if this should be part of CallTracker, the basic functionality already exists there.

I was thinking the opposite. CallTracker could be implemented on top of this in the future. CallTracker is a pretty limited API.

MoLow · 2022-11-05T18:00:19Z

I was thinking the opposite. CallTracker could be implemented on top of this in the future. CallTracker is a pretty limited API.

that is ok as well, but do we need two separate APIs? regardless of the implementation, it can be pretty confusing to expose two overlapping classes.

in addition, exposing this class via node:assert makes more sense to me than via node:test, but this is not a strong opinion

cjihrig · 2022-11-05T18:11:24Z

but do we need two separate APIs?

I don't think so. I don't want to get into CallTracker too much in this PR, but we have options there. First, it's unstable and could be removed completely. It could also be implemented on top of the mock functionality. It would be possible to add an entire API on the mock object exposed here (foo.mock.wasCalledTimes(n), etc.), but I don't really want to go down that path in this initial PR.

MoLow · 2022-11-05T21:08:39Z

lib/internal/test_runner/mock.js

+    validateObject(options, 'options');
+
+    const {
+      getter = false,


can we expose mock.getter(obj, 'key', impl) as an alias for mock.method(obj, 'key', impl, { getter: true })?
same for mock.setter(obj, 'key', impl)

Yea we can. I'd prefer adding that kind of sugar in follow up PRs though.

lib/internal/test_runner/mock.js

MoLow · 2022-11-05T21:25:26Z

lib/internal/test_runner/mock.js

+    this.#mocks.set(call, implementation);
+  }
+
+  restore() {


I think a resetHistory / resetCalls can be very useful as well. can be in a follow-up PR as well

Lacking documentation

lib/internal/test_runner/mock.js

doc/api/test.md

mcollina

lgtm

nodejs-github-bot · 2022-11-07T18:30:52Z

CI: https://ci.nodejs.org/job/node-test-pull-request/47769/

nodejs-github-bot · 2022-11-07T20:48:04Z

CI: https://ci.nodejs.org/job/node-test-pull-request/47772/

nodejs-github-bot · 2022-11-07T21:36:18Z

CI: https://ci.nodejs.org/job/node-test-pull-request/47774/

nodejs-github-bot · 2022-11-07T22:38:27Z

CI: https://ci.nodejs.org/job/node-test-pull-request/47776/

This commit allows tests in the test runner to mock functions and methods. PR-URL: nodejs#45326 Reviewed-By: Moshe Atlow <[email protected]> Reviewed-By: Matteo Collina <[email protected]>

This commit allows tests in test runner to use the `getter` and `setter` methods as "syntax sugar" for `MockTracker.method` with the `options.getter` or `options.setter` set to true in the options. Refs: #45326 (comment) PR-URL: #45506 Reviewed-By: Moshe Atlow <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Antoine du Hamel <[email protected]>

This commit allows tests in test runner to reset the calls of mock function Refs: #45326 (comment) PR-URL: #45710 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Moshe Atlow <[email protected]> Reviewed-By: Yagiz Nizipli <[email protected]>

Notable changes: Add support for externally shared js builtins: By default Node.js is built so that all dependencies are bundled into the Node.js binary itself. Some Node.js distributions prefer to manage dependencies externally. There are existing build options that allow dependencies with native code to be externalized. This commit adds additional options so that dependencies with JavaScript code (including WASM) can also be externalized. This addition does not affect binaries shipped by the Node.js project but will allow other distributions to externalize additional dependencies when needed. Contributed by Michael Dawson in #44376 fs.watch recursive support on Linux: `fs.watch` supports recursive watch using the `recursive: true` option. ```js const watcher = fs.watch(testDirectory, { recursive: true }); watcher.on('change', function(event, filename) { }); ``` Contributed by Yagiz Nizipli in #45098 Support function mocking on Node.js test runner: The `node:test` module supports mocking during testing via a top-level `mock` object. ```js test('spies on an object method', (t) => { const number = { value: 5, add(a) { return this.value + a; }, }; t.mock.method(number, 'add'); assert.strictEqual(number.add(3), 8); assert.strictEqual(number.add.mock.calls.length, 1); }); ``` Contributed by Colin Ihrig in #45326 Other notable changes: buffer: * (SEMVER-MINOR) introduce File (Khafra) #45139 build: * disable v8 snapshot compression by default (Joyee Cheung) #45716 crypto: * update root certificates (Luigi Pinca) #45490 deps: * update ICU to 72.1 (Michaël Zasso) #45068 doc: * add doc-only deprecation for headers/trailers setters (Rich Trott) #45697 * add Rafael to the tsc (Michael Dawson) #45691 * deprecate use of invalid ports in `url.parse` (Antoine du Hamel) #45576 * add lukekarrys to collaborators (Luke Karrys) #45180 * add anonrig to collaborators (Yagiz Nizipli) #45002 * deprecate url.parse() (Rich Trott) #44919 lib: * drop fetch experimental warning (Matteo Collina) #45287 net: * (SEMVER-MINOR) add autoSelectFamily and autoSelectFamilyAttemptTimeout options (Paolo Insogna) #44731 * src: * (SEMVER-MINOR) add uvwasi version (Jithil P Ponnan) #45639 * (SEMVER-MINOR) add initial shadow realm support (Chengzhong Wu) #42869 test_runner: * (SEMVER-MINOR) add t.after() hook (Colin Ihrig) #45792 * (SEMVER-MINOR) don't use a symbol for runHook() (Colin Ihrig) #45792 tls: * (SEMVER-MINOR) add "ca" property to certificate object (Ben Noordhuis) #44935 * remove trustcor root ca certificates (Ben Noordhuis) #45776 tools: * update certdata.txt (Luigi Pinca) #45490 util: * add fast path for utf8 encoding (Yagiz Nizipli) #45412 * improve textdecoder decode performance (Yagiz Nizipli) #45294 * (SEMVER-MINOR) add MIME utilities (#21128) (Bradley Farias) #21128 PR-URL: TBD

Notable changes: Add support for externally shared js builtins: By default Node.js is built so that all dependencies are bundled into the Node.js binary itself. Some Node.js distributions prefer to manage dependencies externally. There are existing build options that allow dependencies with native code to be externalized. This commit adds additional options so that dependencies with JavaScript code (including WASM) can also be externalized. This addition does not affect binaries shipped by the Node.js project but will allow other distributions to externalize additional dependencies when needed. Contributed by Michael Dawson in #44376 fs.watch recursive support on Linux: `fs.watch` supports recursive watch using the `recursive: true` option. ```js const watcher = fs.watch(testDirectory, { recursive: true }); watcher.on('change', function(event, filename) { }); ``` Contributed by Yagiz Nizipli in #45098 Support function mocking on Node.js test runner: The `node:test` module supports mocking during testing via a top-level `mock` object. ```js test('spies on an object method', (t) => { const number = { value: 5, add(a) { return this.value + a; }, }; t.mock.method(number, 'add'); assert.strictEqual(number.add(3), 8); assert.strictEqual(number.add.mock.calls.length, 1); }); ``` Contributed by Colin Ihrig in #45326 Other notable changes: buffer: * (SEMVER-MINOR) introduce File (Khafra) #45139 build: * disable v8 snapshot compression by default (Joyee Cheung) #45716 crypto: * update root certificates (Luigi Pinca) #45490 deps: * update ICU to 72.1 (Michaël Zasso) #45068 doc: * add doc-only deprecation for headers/trailers setters (Rich Trott) #45697 * add Rafael to the tsc (Michael Dawson) #45691 * deprecate use of invalid ports in `url.parse` (Antoine du Hamel) #45576 * add lukekarrys to collaborators (Luke Karrys) #45180 * add anonrig to collaborators (Yagiz Nizipli) #45002 * deprecate url.parse() (Rich Trott) #44919 lib: * drop fetch experimental warning (Matteo Collina) #45287 net: * (SEMVER-MINOR) add autoSelectFamily and autoSelectFamilyAttemptTimeout options (Paolo Insogna) #44731 * src: * (SEMVER-MINOR) add uvwasi version (Jithil P Ponnan) #45639 * (SEMVER-MINOR) add initial shadow realm support (Chengzhong Wu) #42869 test_runner: * (SEMVER-MINOR) add t.after() hook (Colin Ihrig) #45792 * (SEMVER-MINOR) don't use a symbol for runHook() (Colin Ihrig) #45792 tls: * (SEMVER-MINOR) add "ca" property to certificate object (Ben Noordhuis) #44935 * remove trustcor root ca certificates (Ben Noordhuis) #45776 tools: * update certdata.txt (Luigi Pinca) #45490 util: * add fast path for utf8 encoding (Yagiz Nizipli) #45412 * improve textdecoder decode performance (Yagiz Nizipli) #45294 * (SEMVER-MINOR) add MIME utilities (#21128) (Bradley Farias) #21128 PR-URL: #46025

This commit allows tests in the test runner to mock functions and methods. PR-URL: #45326 Reviewed-By: Moshe Atlow <[email protected]> Reviewed-By: Matteo Collina <[email protected]>

This commit allows tests in test runner to use the `getter` and `setter` methods as "syntax sugar" for `MockTracker.method` with the `options.getter` or `options.setter` set to true in the options. Refs: #45326 (comment) PR-URL: #45506 Reviewed-By: Moshe Atlow <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Antoine du Hamel <[email protected]>

This commit allows tests in test runner to reset the calls of mock function Refs: #45326 (comment) PR-URL: #45710 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Moshe Atlow <[email protected]> Reviewed-By: Yagiz Nizipli <[email protected]>

Notable changes: Add support for externally shared js builtins: By default Node.js is built so that all dependencies are bundled into the Node.js binary itself. Some Node.js distributions prefer to manage dependencies externally. There are existing build options that allow dependencies with native code to be externalized. This commit adds additional options so that dependencies with JavaScript code (including WASM) can also be externalized. This addition does not affect binaries shipped by the Node.js project but will allow other distributions to externalize additional dependencies when needed. Contributed by Michael Dawson in #44376 fs.watch recursive support on Linux: `fs.watch` supports recursive watch using the `recursive: true` option. ```js const watcher = fs.watch(testDirectory, { recursive: true }); watcher.on('change', function(event, filename) { }); ``` Contributed by Yagiz Nizipli in #45098 Support function mocking on Node.js test runner: The `node:test` module supports mocking during testing via a top-level `mock` object. ```js test('spies on an object method', (t) => { const number = { value: 5, add(a) { return this.value + a; }, }; t.mock.method(number, 'add'); assert.strictEqual(number.add(3), 8); assert.strictEqual(number.add.mock.calls.length, 1); }); ``` Contributed by Colin Ihrig in #45326 Other notable changes: buffer: * (SEMVER-MINOR) introduce File (Khafra) #45139 build: * disable v8 snapshot compression by default (Joyee Cheung) #45716 crypto: * update root certificates (Luigi Pinca) #45490 deps: * update ICU to 72.1 (Michaël Zasso) #45068 doc: * add doc-only deprecation for headers/trailers setters (Rich Trott) #45697 * add Rafael to the tsc (Michael Dawson) #45691 * deprecate use of invalid ports in `url.parse` (Antoine du Hamel) #45576 * add lukekarrys to collaborators (Luke Karrys) #45180 * add anonrig to collaborators (Yagiz Nizipli) #45002 * deprecate url.parse() (Rich Trott) #44919 lib: * drop fetch experimental warning (Matteo Collina) #45287 net: * (SEMVER-MINOR) add autoSelectFamily and autoSelectFamilyAttemptTimeout options (Paolo Insogna) #44731 * src: * (SEMVER-MINOR) add uvwasi version (Jithil P Ponnan) #45639 * (SEMVER-MINOR) add initial shadow realm support (Chengzhong Wu) #42869 test_runner: * (SEMVER-MINOR) add t.after() hook (Colin Ihrig) #45792 * (SEMVER-MINOR) don't use a symbol for runHook() (Colin Ihrig) #45792 tls: * (SEMVER-MINOR) add "ca" property to certificate object (Ben Noordhuis) #44935 * remove trustcor root ca certificates (Ben Noordhuis) #45776 tools: * update certdata.txt (Luigi Pinca) #45490 util: * add fast path for utf8 encoding (Yagiz Nizipli) #45412 * improve textdecoder decode performance (Yagiz Nizipli) #45294 * (SEMVER-MINOR) add MIME utilities (#21128) (Bradley Farias) #21128 PR-URL: #46025

Notable changes: Add support for externally shared js builtins: By default Node.js is built so that all dependencies are bundled into the Node.js binary itself. Some Node.js distributions prefer to manage dependencies externally. There are existing build options that allow dependencies with native code to be externalized. This commit adds additional options so that dependencies with JavaScript code (including WASM) can also be externalized. This addition does not affect binaries shipped by the Node.js project but will allow other distributions to externalize additional dependencies when needed. Contributed by Michael Dawson in #44376 Introduce `File`: The File class is part of the [FileAPI](https://w3c.github.io/FileAPI/). It can be used anywhere a Blob can, for example in `URL.createObjectURL` and `FormData`. It contains two properties that Blobs do not have: `lastModified`, the last time the file was modified in ms, and `name`, the name of the file. Contributed by Khafra in #45139 Support function mocking on Node.js test runner: The `node:test` module supports mocking during testing via a top-level `mock` object. ```js test('spies on an object method', (t) => { const number = { value: 5, add(a) { return this.value + a; }, }; t.mock.method(number, 'add'); assert.strictEqual(number.add(3), 8); assert.strictEqual(number.add.mock.calls.length, 1); }); ``` Contributed by Colin Ihrig in #45326 Other notable changes: build: * disable v8 snapshot compression by default (Joyee Cheung) #45716 crypto: * update root certificates (Luigi Pinca) #45490 deps: * update ICU to 72.1 (Michaël Zasso) #45068 doc: * add doc-only deprecation for headers/trailers setters (Rich Trott) #45697 * add Rafael to the tsc (Michael Dawson) #45691 * deprecate use of invalid ports in `url.parse` (Antoine du Hamel) #45576 * add lukekarrys to collaborators (Luke Karrys) #45180 * add anonrig to collaborators (Yagiz Nizipli) #45002 * deprecate url.parse() (Rich Trott) #44919 lib: * drop fetch experimental warning (Matteo Collina) #45287 net: * (SEMVER-MINOR) add autoSelectFamily and autoSelectFamilyAttemptTimeout options (Paolo Insogna) #44731 * src: * (SEMVER-MINOR) add uvwasi version (Jithil P Ponnan) #45639 * (SEMVER-MINOR) add initial shadow realm support (Chengzhong Wu) #42869 test_runner: * (SEMVER-MINOR) add t.after() hook (Colin Ihrig) #45792 * (SEMVER-MINOR) don't use a symbol for runHook() (Colin Ihrig) #45792 tls: * (SEMVER-MINOR) add "ca" property to certificate object (Ben Noordhuis) #44935 * remove trustcor root ca certificates (Ben Noordhuis) #45776 tools: * update certdata.txt (Luigi Pinca) #45490 util: * add fast path for utf8 encoding (Yagiz Nizipli) #45412 * improve textdecoder decode performance (Yagiz Nizipli) #45294 * (SEMVER-MINOR) add MIME utilities (#21128) (Bradley Farias) #21128 PR-URL: #46025