Replace ts-jest with @swc/jest for TypeScript test transforms by Copilot · Pull Request #313 · USTC-KnowledgeComputingLab/ds

Copilot · 2026-04-06T12:28:25Z

Update root jest.config.mjs: replace ts-jest transform with @swc/jest
Update egg/jest.config.mjs: replace ts-jest transform with @swc/jest
Update root package.json: remove ts-jest, add @swc/core and @swc/jest devDependencies
Update egg/package.json: remove ts-jest, add @swc/core and @swc/jest devDependencies
Run npm install in root and egg/ to update package-lock.json
Fix CI failure: add SWC options (jsc.parser.syntax: "typescript", jsc.target: "es2022", module.type: "es6") to both jest configs so @swc/jest uses the TypeScript parser and emits ESM
Note: bnf/jest.config.mjs has no ts transform, no changes needed there

Agent-Logs-Url: https://github.com/USTC-KnowledgeComputingLab/ds/sessions/d8688cd9-2efc-4773-acb9-b665cf6559cb Co-authored-by: hzhangxyz <11623447+hzhangxyz@users.noreply.github.com>

Copilot

Pull request overview

This PR replaces ts-jest with @swc/jest for transforming TypeScript during Jest runs to avoid tsc-triggered failures (notably TS5107 on deprecated moduleResolution modes) while keeping the Jest setup largely unchanged.

Changes:

Swaps Jest’s TypeScript transform from ts-jest to @swc/jest (root + egg/).
Updates devDependencies to remove ts-jest and add @swc/core + @swc/jest (root + egg/), with corresponding lockfile updates.

Reviewed changes

Copilot reviewed 4 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
package.json	Replaces `ts-jest` devDependency with `@swc/core` and `@swc/jest`.
package-lock.json	Lockfile updates reflecting removal of `ts-jest` and addition of SWC packages.
jest.config.mjs	Switches transform to `@swc/jest`.
egg/package.json	Mirrors root dependency change for the `egg/` package.
egg/package-lock.json	Mirrors root lockfile changes for `egg/`.
egg/jest.config.mjs	Mirrors root Jest transform change for `egg/`.

Files not reviewed (1)

egg/package-lock.json: Language not supported

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Copilot · 2026-04-06T15:11:41Z

    extensionsToTreatAsEsm: [".mts"],
    transform: {
-        "^.+\\.m?tsx?$": ["ts-jest", {}],
+        "^.+\\.m?tsx?$": ["@swc/jest"],


@swc/jest defaults to emitting CommonJS. Since this repo is ESM (package.json has type: "module") and Jest treats .mts as ESM (extensionsToTreatAsEsm: [".mts"]), transforming atsds/index.mts (which uses top-level await) to CommonJS is likely to break test execution. Configure the SWC transform to emit ESM (module type es6/esnext) and target a runtime that supports top-level await (e.g., es2022/esnext), either by passing options to the transform entry or by adding a project .swcrc used by Jest.

Suggested change

"^.+\\.m?tsx?$": ["@swc/jest"],

"^.+\\.m?tsx?$": [

"@swc/jest",

{

module: {

type: "es6",

},

jsc: {

target: "es2022",

},

},

],

Copilot · 2026-04-06T15:11:41Z

    extensionsToTreatAsEsm: [".mts"],
    transform: {
-        "^.+\\.m?tsx?$": ["ts-jest", {}],
+        "^.+\\.m?tsx?$": ["@swc/jest"],


Same concern as root config: with type: "module" and .mts treated as ESM, @swc/jest needs to be configured to output ESM (and a target that supports top-level await) or Jest may fail when importing .mts sources during tests.

Suggested change

"^.+\\.m?tsx?$": ["@swc/jest"],

"^.+\\.m?tsx?$": ["@swc/jest", {

jsc: {

parser: {

syntax: "typescript",

tsx: true,

},

target: "es2022",

},

module: {

type: "es6",

},

}],

hzhangxyz

github action 报错了：

cross-env NODE_OPTIONS='$NODE_OPTIONS --experimental-vm-modules' jest --config=jest.config.mjs

(node:4308) ExperimentalWarning: VM Modules is an experimental feature and might change at any time
(Use `node --trace-warnings ...` to show where the warning was created)
FAIL tests/test_chain.mjs
  ● Test suite failed to run

      x Expected ',', got '*'
       ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
     4 |  */
     5 | 
     6 | import create_ds from "./ds.mjs";
     7 | import type * as dst from "./ds.d.mts";
       :             ^
     8 | 
     9 | const ds: dst.EmbindModule = await create_ds();
       `----


    Caused by:
        Syntax Error

      ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
       4 |  */
       5 | 
       6 | import create_ds from "./ds.mjs";
       7 | import type * as dst from "./ds.d.mts";
         :             ^
       8 | 
       9 | const ds: dst.EmbindModule = await create_ds();
         `----
      Caused by:
          Syntax Error

(node:4309) ExperimentalWarning: VM Modules is an experimental feature and might change at any time
(Use `node --trace-warnings ...` to show where the warning was created)
FAIL tests/test_rule.mjs
  ● Test suite failed to run

      x Expected ',', got '*'
       ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
     4 |  */
     5 | 
     6 | import create_ds from "./ds.mjs";
     7 | import type * as dst from "./ds.d.mts";
       :             ^
     8 | 
     9 | const ds: dst.EmbindModule = await create_ds();
       `----


    Caused by:
        Syntax Error

      ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
       4 |  */
       5 | 
       6 | import create_ds from "./ds.mjs";
       7 | import type * as dst from "./ds.d.mts";
         :             ^
       8 | 
       9 | const ds: dst.EmbindModule = await create_ds();
         `----
      Caused by:
          Syntax Error

(node:4310) ExperimentalWarning: VM Modules is an experimental feature and might change at any time
(Use `node --trace-warnings ...` to show where the warning was created)
FAIL tests/test_term.mjs
  ● Test suite failed to run

      x Expected ',', got '*'
       ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
     4 |  */
     5 | 
     6 | import create_ds from "./ds.mjs";
     7 | import type * as dst from "./ds.d.mts";
       :             ^
     8 | 
     9 | const ds: dst.EmbindModule = await create_ds();
       `----


    Caused by:
        Syntax Error

      ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
       4 |  */
       5 | 
       6 | import create_ds from "./ds.mjs";
       7 | import type * as dst from "./ds.d.mts";
         :             ^
       8 | 
       9 | const ds: dst.EmbindModule = await create_ds();
         `----
      Caused by:
          Syntax Error

FAIL tests/test_search.mjs
  ● Test suite failed to run

      x Expected ',', got '*'
       ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
     4 |  */
     5 | 
     6 | import create_ds from "./ds.mjs";
     7 | import type * as dst from "./ds.d.mts";
       :             ^
     8 | 
     9 | const ds: dst.EmbindModule = await create_ds();
       `----


    Caused by:
        Syntax Error

      ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
       4 |  */
       5 | 
       6 | import create_ds from "./ds.mjs";
       7 | import type * as dst from "./ds.d.mts";
         :             ^
       8 | 
       9 | const ds: dst.EmbindModule = await create_ds();
         `----
      Caused by:
          Syntax Error

FAIL tests/test_variable.mjs
  ● Test suite failed to run

      x Expected ',', got '*'
       ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
     4 |  */
     5 | 
     6 | import create_ds from "./ds.mjs";
     7 | import type * as dst from "./ds.d.mts";
       :             ^
     8 | 
     9 | const ds: dst.EmbindModule = await create_ds();
       `----


    Caused by:
        Syntax Error

      ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
       4 |  */
       5 | 
       6 | import create_ds from "./ds.mjs";
       7 | import type * as dst from "./ds.d.mts";
         :             ^
       8 | 
       9 | const ds: dst.EmbindModule = await create_ds();
         `----
      Caused by:
          Syntax Error

FAIL tests/test_list.mjs
  ● Test suite failed to run

      x Expected ',', got '*'
       ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
     4 |  */
     5 | 
     6 | import create_ds from "./ds.mjs";
     7 | import type * as dst from "./ds.d.mts";
       :             ^
     8 | 
     9 | const ds: dst.EmbindModule = await create_ds();
       `----


    Caused by:
        Syntax Error

      ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
       4 |  */
       5 | 
       6 | import create_ds from "./ds.mjs";
       7 | import type * as dst from "./ds.d.mts";
         :             ^
       8 | 
       9 | const ds: dst.EmbindModule = await create_ds();
         `----
      Caused by:
          Syntax Error

FAIL tests/test_item.mjs
  ● Test suite failed to run

      x Expected ',', got '*'
       ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
     4 |  */
     5 | 
     6 | import create_ds from "./ds.mjs";
     7 | import type * as dst from "./ds.d.mts";
       :             ^
     8 | 
     9 | const ds: dst.EmbindModule = await create_ds();
       `----


    Caused by:
        Syntax Error

      ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
       4 |  */
       5 | 
       6 | import create_ds from "./ds.mjs";
       7 | import type * as dst from "./ds.d.mts";
         :             ^
       8 | 
       9 | const ds: dst.EmbindModule = await create_ds();
         `----
      Caused by:
          Syntax Error

FAIL tests/test_string.mjs
  ● Test suite failed to run

      x Expected ',', got '*'
       ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
     4 |  */
     5 | 
     6 | import create_ds from "./ds.mjs";
     7 | import type * as dst from "./ds.d.mts";
       :             ^
     8 | 
     9 | const ds: dst.EmbindModule = await create_ds();
       `----


    Caused by:
        Syntax Error

      ,-[/home/runner/work/ds/ds/atsds/index.mts:7:1]
       4 |  */
       5 | 
       6 | import create_ds from "./ds.mjs";
       7 | import type * as dst from "./ds.d.mts";
         :             ^
       8 | 
       9 | const ds: dst.EmbindModule = await create_ds();
         `----
      Caused by:
          Syntax Error

----------|---------|----------|---------|---------|-------------------
File      | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s 
----------|---------|----------|---------|---------|-------------------
All files |       0 |        0 |       0 |       0 |                   
----------|---------|----------|---------|---------|-------------------
Test Suites: 8 failed, 8 total
Tests:       0 total
Snapshots:   0 total
Time:        0.697 s
Ran all test suites.
ERROR: "test" exited with 1.
Error: Process completed with exit code 1.

…rget Agent-Logs-Url: https://github.com/USTC-KnowledgeComputingLab/ds/sessions/83f8342a-8eae-44c2-affd-0431f0cea60e Co-authored-by: hzhangxyz <11623447+hzhangxyz@users.noreply.github.com>

Copilot · 2026-04-06T15:22:55Z

github action 报错了：

Fixed in b522d17. Both jest.config.mjs and egg/jest.config.mjs now pass explicit SWC options to @swc/jest:

jsc.parser.syntax: "typescript" — enables the TypeScript parser so import type * is recognized
jsc.target: "es2022" — supports top-level await
module.type: "es6" — emits ESM, matching the type: "module" package config

Initial plan

5380967

Copilot AI assigned Copilot and hzhangxyz Apr 6, 2026

Copilot started work on behalf of hzhangxyz April 6, 2026 12:28 View session

Copilot AI linked an issue Apr 6, 2026 that may be closed by this pull request

使用 swc jest而不是ts-jest #312

Closed

Replace ts-jest with @swc/jest for Jest TypeScript transforms

364f8a3

Agent-Logs-Url: https://github.com/USTC-KnowledgeComputingLab/ds/sessions/d8688cd9-2efc-4773-acb9-b665cf6559cb Co-authored-by: hzhangxyz <11623447+hzhangxyz@users.noreply.github.com>

Copilot AI changed the title ~~[WIP] 使用 swc jest 取代 ts-jest~~ Replace ts-jest with @swc/jest for TypeScript test transforms Apr 6, 2026

Copilot AI requested a review from hzhangxyz April 6, 2026 12:32

Copilot finished work on behalf of hzhangxyz April 6, 2026 12:32

hzhangxyz marked this pull request as ready for review April 6, 2026 15:06

Copilot AI review requested due to automatic review settings April 6, 2026 15:06

Copilot started reviewing on behalf of hzhangxyz April 6, 2026 15:08 View session

Copilot AI reviewed Apr 6, 2026

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hzhangxyz requested changes Apr 6, 2026

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Copilot started work on behalf of hzhangxyz April 6, 2026 15:21 View session

Configure @swc/jest with TypeScript parser, ESM output, and es2022 ta…

b522d17

…rget Agent-Logs-Url: https://github.com/USTC-KnowledgeComputingLab/ds/sessions/83f8342a-8eae-44c2-affd-0431f0cea60e Co-authored-by: hzhangxyz <11623447+hzhangxyz@users.noreply.github.com>

Copilot finished work on behalf of hzhangxyz April 6, 2026 15:23

Copilot AI requested a review from hzhangxyz April 6, 2026 15:23

hzhangxyz merged commit 82ec5a0 into main Apr 6, 2026
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Replace ts-jest with @swc/jest for TypeScript test transforms - #313

Replace ts-jest with @swc/jest for TypeScript test transforms#313
hzhangxyz merged 3 commits into
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copilot/swc-jest-ts-jest

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-        "^.+\\.m?tsx?$": ["@swc/jest"],
+        "^.+\\.m?tsx?$": [
+            "@swc/jest",
+            {
+                module: {
+                    type: "es6",
+                },
+                jsc: {
+                    target: "es2022",
+                },
+            },
+        ],

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Copilot AI commented Apr 6, 2026 •

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