remove comment

Signed-off-by: Meredith Lancaster <malancas@github.com>

.github/workflows/check-dist.yml

@@ -28,11 +28,11 @@ jobs:
     steps:
       - name: Checkout
         id: checkout
-        uses: actions/checkout@v6.0.1
+        uses: actions/checkout@v6.0.2
 
       - name: Setup Node.js
         id: setup-node
-        uses: actions/setup-node@v6.1.0
+        uses: actions/setup-node@v6.2.0
         with:
           node-version-file: .node-version
           cache: npm

.github/workflows/ci.yml

@@ -21,11 +21,11 @@ jobs:
     steps:
       - name: Checkout
         id: checkout
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v5.0.1
+        uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v5.0.1
 
       - name: Setup Node.js
         id: setup-node
-        uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
+        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
         with:
           node-version-file: .node-version
           cache: npm
@@ -58,7 +58,7 @@ jobs:
     steps:
       - name: Checkout
         id: checkout
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v5.0.1
+        uses: actions/checkout@0c366fd6a839edf440554fa01a7085ccba70ac98 # v5.0.1
       - name: Calculate subject digest
         id: subject
         env:

.github/workflows/codeql-analysis.yml

@@ -32,7 +32,7 @@ jobs:
     steps:
       - name: Checkout
         id: checkout
-        uses: actions/checkout@v6.0.1
+        uses: actions/checkout@v6.0.2
 
       - name: Initialize CodeQL
         id: initialize

__tests__/index.test.ts

@@ -2,20 +2,26 @@
  * Unit tests for the action's entrypoint, src/index.ts
  */
 
-import * as core from '@actions/core'
-import * as main from '../src/main'
+import { jest, describe, expect, beforeEach } from '@jest/globals'
 
-// Mock the action's entrypoint
-const runMock = jest.spyOn(main, 'run').mockImplementation()
-const getBooleanInputMock = jest.spyOn(core, 'getBooleanInput')
+// Mock modules before importing them
+const runMock = jest.fn<() => Promise<void>>()
+
+jest.unstable_mockModule('../src/main', () => ({
+  run: runMock
+}))
+
+jest.unstable_mockModule('@actions/core', () => ({
+  getInput: jest.fn(() => ''),
+  getBooleanInput: jest.fn(() => false)
+}))
 
 describe('index', () => {
   beforeEach(() => {
-    getBooleanInputMock.mockImplementation(() => false)
+    jest.clearAllMocks()
   })
-  it('calls run when imported', () => {
-    // eslint-disable-next-line @typescript-eslint/no-require-imports
-    require('../src/index')
+  it('calls run when imported', async () => {
+    await import('../src/index.js')
 
     expect(runMock).toHaveBeenCalled()
   })

__tests__/main.test.ts

@@ -5,41 +5,110 @@
  * Specifically, the inputs listed in `action.yml` should be set as environment
  * variables following the pattern `INPUT_<INPUT_NAME>`.
  */
-import * as core from '@actions/core'
-import * as github from '@actions/github'
-import { mockFulcio, mockRekor, mockTSA } from '@sigstore/mock'
-import * as oci from '@sigstore/oci'
-import * as attest from '@actions/attest'
-import * as localAttest from '../src/attest'
-import fs from 'fs/promises'
-import nock from 'nock'
-import os from 'os'
-import path from 'path'
-import { MockAgent, setGlobalDispatcher } from 'undici'
-import { SEARCH_PUBLIC_GOOD_URL } from '../src/endpoints'
-import * as main from '../src/main'
+import {
+  jest,
+  describe,
+  expect,
+  beforeEach,
+  afterEach,
+  it
+} from '@jest/globals'
+import type { RunInputs } from '../src/main.js'
 
-// Mock the GitHub Actions core library
-const infoMock = jest.spyOn(core, 'info')
-const warningMock = jest.spyOn(core, 'warning')
-const startGroupMock = jest.spyOn(core, 'startGroup')
-const setOutputMock = jest.spyOn(core, 'setOutput')
-const setFailedMock = jest.spyOn(core, 'setFailed')
+// Create mock functions for core
+const infoMock = jest.fn()
+const warningMock = jest.fn()
+const startGroupMock = jest.fn()
+const endGroupMock = jest.fn()
+const setOutputMock = jest.fn()
+const setFailedMock = jest.fn()
+const summaryWriteMock = jest.fn<() => Promise<void>>()
 
-// Ensure that setFailed doesn't set an exit code during tests
-setFailedMock.mockImplementation(() => {})
+// Create a mock summary object
+const mockSummary = {
+  addHeading: jest.fn().mockReturnThis(),
+  addRaw: jest.fn().mockReturnThis(),
+  addTable: jest.fn().mockReturnThis(),
+  addSeparator: jest.fn().mockReturnThis(),
+  addLink: jest.fn().mockReturnThis(),
+  addBreak: jest.fn().mockReturnThis(),
+  addList: jest.fn().mockReturnThis(),
+  write: summaryWriteMock.mockResolvedValue(undefined)
+}
 
-const summaryWriteMock = jest.spyOn(core.summary, 'write')
-summaryWriteMock.mockResolvedValue(core.summary)
+// Mock @actions/core before importing
+jest.unstable_mockModule('@actions/core', () => ({
+  info: infoMock,
+  warning: warningMock,
+  startGroup: startGroupMock,
+  endGroup: endGroupMock,
+  setOutput: setOutputMock,
+  setFailed: setFailedMock,
+  summary: mockSummary
+}))
 
-// Mock the action's main function
-const runMock = jest.spyOn(main, 'run')
+// Create mocks for OCI and attest modules
+/* eslint-disable @typescript-eslint/no-explicit-any */
+const getRegistryCredentialsMock = jest.fn<(...args: any[]) => any>()
+const attachArtifactToImageMock = jest.fn<(...args: any[]) => any>()
+const createStorageRecordMock = jest.fn<(...args: any[]) => any>()
+const attestMock = jest.fn<(...args: any[]) => any>()
+/* eslint-enable @typescript-eslint/no-explicit-any */
+
+// Mock @sigstore/oci
+jest.unstable_mockModule('@sigstore/oci', () => ({
+  getRegistryCredentials: getRegistryCredentialsMock,
+  attachArtifactToImage: attachArtifactToImageMock
+}))
+
+// Mock @actions/attest
+jest.unstable_mockModule('@actions/attest', () => ({
+  attest: attestMock,
+  createStorageRecord: createStorageRecordMock
+}))
+
+// Create a mutable context object for @actions/github
+const mockContext: Record<string, unknown> = {}
+
+// Mock for getOctokit to return a mock octokit client
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+const mockReposGet = jest.fn<(...args: any[]) => any>()
+const mockOctokit = {
+  rest: {
+    repos: {
+      get: mockReposGet
+    }
+  }
+}
+
+jest.unstable_mockModule('@actions/github', () => ({
+  context: mockContext,
+  getOctokit: jest.fn(() => mockOctokit)
+}))
+
+// Helper to set the mocked GitHub context
+function setGHContext(context: object): void {
+  Object.keys(mockContext).forEach(key => delete mockContext[key])
+  Object.assign(mockContext, context)
+}
+
+// Now import the modules after mocking
+const { mockFulcio, mockRekor, mockTSA } = await import('@sigstore/mock')
+const fs = (await import('fs/promises')).default
+const nock = (await import('nock')).default
+const os = (await import('os')).default
+const path = (await import('path')).default
+const { MockAgent, setGlobalDispatcher } = await import('undici')
+const { SEARCH_PUBLIC_GOOD_URL } = await import('../src/endpoints.js')
+const { run } = (await import('../src/main.js')) as {
+  run: (inputs: RunInputs) => Promise<void>
+}
 
 // MockAgent for mocking @actions/github
 const mockAgent = new MockAgent()
 setGlobalDispatcher(mockAgent)
 
-const defaultInputs: main.RunInputs = {
+const defaultInputs: RunInputs = {
   predicate: '',
   predicateType: '',
   predicatePath: '',
@@ -55,10 +124,8 @@ const defaultInputs: main.RunInputs = {
 }
 
 describe('action', () => {
-  // Capture original environment variables and GitHub context so we can restore
-  // them after each test
+  // Capture original environment variables so we can restore them after each test
   const originalEnv = process.env
-  const originalContext = { ...github.context }
 
   // Mock OIDC token endpoint
   const tokenURL = 'https://token.url'
@@ -82,6 +149,34 @@ describe('action', () => {
   beforeEach(() => {
     jest.clearAllMocks()
 
+    // Set up default GitHub context with empty payload
+    setGHContext({
+      payload: {},
+      repo: { owner: 'test-owner', repo: 'test-repo' }
+    })
+
+    // Set up default return value for attestMock (without tlogID for private/GitHub sigstore)
+    attestMock.mockResolvedValue({
+      attestationID,
+      bundle: {
+        mediaType: 'application/vnd.dev.sigstore.bundle.v0.3+json',
+        verificationMaterial: {
+          certificate: {
+            rawBytes: Buffer.from(
+              '-----BEGIN CERTIFICATE-----\ntest\n-----END CERTIFICATE-----'
+            ).toString('base64')
+          },
+          tlogEntries: []
+        },
+        content: {}
+      },
+      certificate:
+        '-----BEGIN CERTIFICATE-----\ntest\n-----END CERTIFICATE-----'
+    })
+
+    // Set up default return value for createStorageRecordMock (returns array of record IDs)
+    createStorageRecordMock.mockResolvedValue([storageRecordID])
+
     nock(tokenURL)
       .get('/')
       .query({ audience: 'sigstore' })
@@ -114,12 +209,12 @@ describe('action', () => {
     // Restore the original environment
     process.env = originalEnv
 
-    // Restore the original github.context
-    setGHContext(originalContext)
+    // Clear the github context
+    setGHContext({ payload: {}, repo: { owner: '', repo: '' } })
   })
 
   describe('when ACTIONS_ID_TOKEN_REQUEST_URL is not set', () => {
-    const inputs: main.RunInputs = {
+    const inputs: RunInputs = {
       ...defaultInputs,
       subjectDigest,
       subjectName,
@@ -134,9 +229,8 @@ describe('action', () => {
     })
 
     it('sets a failed status', async () => {
-      await main.run(inputs)
+      await run(inputs)
 
-      expect(runMock).toHaveReturned()
       expect(setFailedMock).toHaveBeenCalledWith(
         new Error(
           'missing "id-token" permission. Please add "permissions: id-token: write" to your workflow.'
@@ -147,9 +241,8 @@ describe('action', () => {
 
   describe('when no inputs are provided', () => {
     it('sets a failed status', async () => {
-      await main.run(defaultInputs)
+      await run(defaultInputs)
 
-      expect(runMock).toHaveReturned()
       expect(setFailedMock).toHaveBeenCalledWith(
         new Error(
           'One of subject-path, subject-digest, or subject-checksums must be provided'
@@ -159,7 +252,7 @@ describe('action', () => {
   })
 
   describe('when the repository is private', () => {
-    const inputs: main.RunInputs = {
+    const inputs: RunInputs = {
       ...defaultInputs,
       subjectDigest,
       subjectName,
@@ -183,10 +276,9 @@ describe('action', () => {
     })
 
     it('invokes the action w/o error', async () => {
-      await main.run(inputs)
+      await run(inputs)
 
-      expect(runMock).toHaveReturned()
-      expect(setFailedMock).not.toHaveBeenCalledWith()
+      expect(setFailedMock).not.toHaveBeenCalled()
       expect(infoMock).toHaveBeenNthCalledWith(
         1,
         expect.stringMatching(
@@ -229,13 +321,7 @@ describe('action', () => {
   })
 
   describe('when the repository is public', () => {
-    const getRegCredsSpy = jest.spyOn(oci, 'getRegistryCredentials')
-    const attachArtifactSpy = jest.spyOn(oci, 'attachArtifactToImage')
-    const repoOwnerIsOrgSpy = jest.spyOn(localAttest, 'repoOwnerIsOrg')
-    const createStorageRecordSpy = jest.spyOn(attest, 'createStorageRecord')
-    const createAttestationSpy = jest.spyOn(localAttest, 'createAttestation')
-
-    const inputs: main.RunInputs = {
+    const inputs: RunInputs = {
       ...defaultInputs,
       subjectDigest,
       subjectName,
@@ -258,28 +344,50 @@ describe('action', () => {
       })
       await mockRekor({ baseURL: 'https://rekor.sigstore.dev' })
 
-      getRegCredsSpy.mockImplementation(() => ({
+      getRegistryCredentialsMock.mockImplementation(() => ({
         username: 'username',
         password: 'password'
       }))
-      attachArtifactSpy.mockResolvedValue({
+      attachArtifactToImageMock.mockResolvedValue({
         digest: 'sha256:123456',
         mediaType: 'application/vnd.cncf.notary.v2',
         size: 123456
       })
-      repoOwnerIsOrgSpy.mockResolvedValue(true)
+
+      // Set up attestMock with tlogID for public good sigstore
+      attestMock.mockResolvedValue({
+        attestationID,
+        bundle: {
+          mediaType: 'application/vnd.dev.sigstore.bundle.v0.3+json',
+          verificationMaterial: {
+            certificate: {
+              rawBytes: Buffer.from(
+                '-----BEGIN CERTIFICATE-----\ntest\n-----END CERTIFICATE-----'
+              ).toString('base64')
+            },
+            tlogEntries: [{ logIndex: '123' }]
+          },
+          content: {}
+        },
+        certificate:
+          '-----BEGIN CERTIFICATE-----\ntest\n-----END CERTIFICATE-----',
+        tlogID: '123'
+      })
+
+      // Mock the repos.get API call for repoOwnerIsOrg check
+      mockReposGet.mockResolvedValue({
+        data: { owner: { type: 'Organization' } }
+      })
     })
 
     it('invokes the action w/o error', async () => {
-      await main.run(inputs)
+      await run(inputs)
 
-      expect(runMock).toHaveReturned()
       expect(setFailedMock).not.toHaveBeenCalled()
-      expect(getRegCredsSpy).toHaveBeenCalledWith(subjectName)
-      expect(attachArtifactSpy).toHaveBeenCalled()
-      expect(createAttestationSpy).toHaveBeenCalled()
-      expect(repoOwnerIsOrgSpy).toHaveBeenCalled()
-      expect(createStorageRecordSpy).toHaveBeenCalled()
+      expect(getRegistryCredentialsMock).toHaveBeenCalledWith(subjectName)
+      expect(attachArtifactToImageMock).toHaveBeenCalled()
+      expect(attestMock).toHaveBeenCalled()
+      expect(createStorageRecordMock).toHaveBeenCalled()
       expect(warningMock).not.toHaveBeenCalled()
       expect(infoMock).toHaveBeenNthCalledWith(
         1,
@@ -344,16 +452,14 @@ describe('action', () => {
 
     it('catches error when storage record creation fails and continues', async () => {
       // Mock the createStorageRecord function and throw an error
-      createStorageRecordSpy.mockRejectedValueOnce(
+      createStorageRecordMock.mockRejectedValueOnce(
         new Error('Failed to persist storage record: Not Found')
       )
 
-      await main.run(inputs)
+      await run(inputs)
 
-      expect(runMock).toHaveReturned()
-      expect(createAttestationSpy).toHaveBeenCalled()
-      expect(repoOwnerIsOrgSpy).toHaveBeenCalled()
-      expect(createStorageRecordSpy).toHaveBeenCalled()
+      expect(attestMock).toHaveBeenCalled()
+      expect(createStorageRecordMock).toHaveBeenCalled()
       expect(setFailedMock).not.toHaveBeenCalled()
       expect(warningMock).toHaveBeenNthCalledWith(
         1,
@@ -362,17 +468,16 @@ describe('action', () => {
     })
 
     it('does not create a storage record when the repo is owned by a user', async () => {
-      repoOwnerIsOrgSpy.mockResolvedValueOnce(false)
+      // Mock the repos.get API to return a user-owned repo
+      mockReposGet.mockResolvedValueOnce({ data: { owner: { type: 'User' } } })
 
-      await main.run(inputs)
+      await run(inputs)
 
-      expect(runMock).toHaveReturned()
       expect(setFailedMock).not.toHaveBeenCalled()
-      expect(getRegCredsSpy).toHaveBeenCalledWith(subjectName)
-      expect(attachArtifactSpy).toHaveBeenCalled()
-      expect(createAttestationSpy).toHaveBeenCalled()
-      expect(repoOwnerIsOrgSpy).toHaveBeenCalled()
-      expect(createStorageRecordSpy).not.toHaveBeenCalled()
+      expect(getRegistryCredentialsMock).toHaveBeenCalledWith(subjectName)
+      expect(attachArtifactToImageMock).toHaveBeenCalled()
+      expect(attestMock).toHaveBeenCalled()
+      expect(createStorageRecordMock).not.toHaveBeenCalled()
       expect(warningMock).not.toHaveBeenCalled()
       expect(infoMock).toHaveBeenCalledWith(
         expect.stringMatching(
@@ -436,16 +541,15 @@ describe('action', () => {
     })
 
     it('invokes the action w/o error', async () => {
-      const inputs: main.RunInputs = {
+      const inputs: RunInputs = {
         ...defaultInputs,
         subjectPath: path.join(dir, `${filename}-*`),
         predicateType,
         predicate,
         githubToken: 'gh-token'
       }
-      await main.run(inputs)
+      await run(inputs)
 
-      expect(runMock).toHaveReturned()
       expect(setFailedMock).not.toHaveBeenCalled()
       expect(infoMock).toHaveBeenNthCalledWith(
         1,
@@ -484,16 +588,15 @@ describe('action', () => {
     })
 
     it('sets a failed status', async () => {
-      const inputs: main.RunInputs = {
+      const inputs: RunInputs = {
         ...defaultInputs,
         subjectPath: path.join(dir, `${filename}-*`),
         predicateType,
         predicate,
         githubToken: 'gh-token'
       }
-      await main.run(inputs)
+      await run(inputs)
 
-      expect(runMock).toHaveReturned()
       expect(setFailedMock).toHaveBeenCalledWith(
         new Error(
           'Too many subjects specified. The maximum number of subjects is 1024.'
@@ -502,9 +605,3 @@ describe('action', () => {
     })
   })
 })
-
-// Stubbing the GitHub context is a bit tricky. We need to use
-// `Object.defineProperty` because `github.context` is read-only.
-function setGHContext(context: object): void {
-  Object.defineProperty(github, 'context', { value: context })
-}

__tests__/predicate.test.ts

@@ -1,7 +1,7 @@
 import fs from 'fs/promises'
 import os from 'os'
 import path from 'path'
-import { predicateFromInputs, PredicateInputs } from '../src/predicate'
+import { predicateFromInputs, PredicateInputs } from '../src/predicate.js'
 
 describe('subjectFromInputs', () => {
   const blankInputs: PredicateInputs = {

__tests__/style.test.ts

@@ -1,4 +1,4 @@
-import { highlight, mute } from '../src/style'
+import { highlight, mute } from '../src/style.js'
 
 describe('style', () => {
   describe('highlight', () => {

__tests__/subject.test.ts

@@ -6,7 +6,7 @@ import {
   formatSubjectDigest,
   subjectFromInputs,
   SubjectInputs
-} from '../src/subject'
+} from '../src/subject.js'
 
 describe('subjectFromInputs', () => {
   const blankInputs: SubjectInputs = {
@@ -264,10 +264,15 @@ describe('subjectFromInputs', () => {
         expect(subjects).toBeDefined()
         expect(subjects).toHaveLength(3)
 
-        subjects.forEach((subject, i) => {
-          expect(subject.name).toEqual(`${filename}-${i}`)
-          expect(subject.digest).toEqual({ sha256: expectedDigest })
-        })
+        subjects.forEach(
+          (
+            subject: { name: string; digest: Record<string, string> },
+            i: number
+          ) => {
+            expect(subject.name).toEqual(`${filename}-${i}`)
+            expect(subject.digest).toEqual({ sha256: expectedDigest })
+          }
+        )
       })
     })
 

dist/606.index.js

@@ -1,7 +1,6 @@
-"use strict";
-exports.id = 606;
-exports.ids = [606];
-exports.modules = {
+export const id = 606;
+export const ids = [606];
+export const modules = {
 
 /***/ 606:
 /***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => {
@@ -19,7 +18,7 @@ async function pMap(
 		signal,
 	} = {},
 ) {
-	return new Promise((resolve, reject_) => {
+	return new Promise((resolve_, reject_) => {
 		if (iterable[Symbol.iterator] === undefined && iterable[Symbol.asyncIterator] === undefined) {
 			throw new TypeError(`Expected \`input\` to be either an \`Iterable\` or \`AsyncIterable\`, got (${typeof iterable})`);
 		}
@@ -42,10 +41,24 @@ async function pMap(
 		let currentIndex = 0;
 		const iterator = iterable[Symbol.iterator] === undefined ? iterable[Symbol.asyncIterator]() : iterable[Symbol.iterator]();
 
+		const signalListener = () => {
+			reject(signal.reason);
+		};
+
+		const cleanup = () => {
+			signal?.removeEventListener('abort', signalListener);
+		};
+
+		const resolve = value => {
+			resolve_(value);
+			cleanup();
+		};
+
 		const reject = reason => {
 			isRejected = true;
 			isResolved = true;
 			reject_(reason);
+			cleanup();
 		};
 
 		if (signal) {
@@ -53,9 +66,7 @@ async function pMap(
 				reject(signal.reason);
 			}
 
-			signal.addEventListener('abort', () => {
-				reject(signal.reason);
-			});
+			signal.addEventListener('abort', signalListener, {once: true});
 		}
 
 		const next = async () => {
@@ -203,31 +214,32 @@ function pMapIterable(
 			const iterator = iterable[Symbol.asyncIterator] === undefined ? iterable[Symbol.iterator]() : iterable[Symbol.asyncIterator]();
 
 			const promises = [];
-			let runningMappersCount = 0;
+			let pendingPromisesCount = 0;
 			let isDone = false;
 			let index = 0;
 
 			function trySpawn() {
-				if (isDone || !(runningMappersCount < concurrency && promises.length < backpressure)) {
+				if (isDone || !(pendingPromisesCount < concurrency && promises.length < backpressure)) {
 					return;
 				}
 
+				pendingPromisesCount++;
+
 				const promise = (async () => {
 					const {done, value} = await iterator.next();
 
 					if (done) {
+						pendingPromisesCount--;
 						return {done: true};
 					}
 
-					runningMappersCount++;
-
 					// Spawn if still below concurrency and backpressure limit
 					trySpawn();
 
 					try {
 						const returnValue = await mapper(await value, index++);
 
-						runningMappersCount--;
+						pendingPromisesCount--;
 
 						if (returnValue === pMapSkip) {
 							const index = promises.indexOf(promise);
@@ -242,6 +254,7 @@ function pMapIterable(
 
 						return {done: false, value: returnValue};
 					} catch (error) {
+						pendingPromisesCount--;
 						isDone = true;
 						return {error};
 					}
@@ -284,4 +297,3 @@ const pMapSkip = Symbol('skip');
 /***/ })
 
 };
-;

dist/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}

eslint.config.mjs

@@ -89,6 +89,13 @@ export default tseslint.config(
           allowObject: true
         }
       ]
+    },
+    settings: {
+      'import/resolver': {
+        typescript: {
+          project: './tsconfig.lint.json'
+        }
+      }
     }
   }
 )

jest.config.ts

@@ -0,0 +1,37 @@
+export default {
+  preset: "ts-jest",
+  verbose: true,
+  clearMocks: true,
+  testEnvironment: 'node',
+  moduleFileExtensions: ['js', 'ts'],
+  testMatch: ['**/*.test.ts'],
+  testPathIgnorePatterns: [
+    "/node_modules/",
+    "/dist/"
+  ],
+  transform: {
+    '^.+\\.ts$': [
+      'ts-jest',
+      {
+        useESM: true,
+        diagnostics: {
+          ignoreCodes: [151002]
+        }
+      }
+    ]
+  },
+  coverageReporters: [
+    "json-summary",
+    "text",
+    "lcov"
+  ],
+  collectCoverage: true,
+  collectCoverageFrom: [
+    "./src/**"
+  ],
+  extensionsToTreatAsEsm: ['.ts'],
+  transformIgnorePatterns: ['node_modules/(?!(@actions)/)'],
+  moduleNameMapper: {
+    '^(\\.{1,2}/.*)\\.js$': '$1'
+  },
+}

jest.setup.js

@@ -1 +0,0 @@
-process.stdout.write = jest.fn()

package.json

@@ -2,6 +2,7 @@
   "name": "actions/attest",
   "description": "Generate signed attestations for workflow artifacts",
   "version": "3.2.0",
+  "type": "module",
   "author": "",
   "private": true,
   "homepage": "https://github.com/actions/attest",
@@ -24,7 +25,7 @@
   },
   "scripts": {
     "bundle": "npm run format:write && npm run package",
-    "ci-test": "jest",
+    "ci-test": "node --experimental-vm-modules node_modules/jest/bin/jest.js",
     "format:write": "prettier --write **/*.ts",
     "format:check": "prettier --check **/*.ts",
     "lint:eslint": "npx eslint",
@@ -32,68 +33,38 @@
     "lint": "npm run lint:eslint && npm run lint:markdown",
     "package": "ncc build src/index.ts --license licenses.txt",
     "package:watch": "npm run package -- --watch",
-    "test": "jest",
+    "test": "node --experimental-vm-modules node_modules/jest/bin/jest.js",
     "all": "npm run format:write && npm run lint && npm run test && npm run package"
   },
   "license": "MIT",
-  "jest": {
-    "preset": "ts-jest",
-    "setupFilesAfterEnv": [
-      "./jest.setup.js"
-    ],
-    "verbose": true,
-    "clearMocks": true,
-    "testEnvironment": "node",
-    "moduleFileExtensions": [
-      "js",
-      "ts"
-    ],
-    "testMatch": [
-      "**/*.test.ts"
-    ],
-    "testPathIgnorePatterns": [
-      "/node_modules/",
-      "/dist/"
-    ],
-    "transform": {
-      "^.+\\.ts$": "ts-jest"
-    },
-    "coverageReporters": [
-      "json-summary",
-      "text",
-      "lcov"
-    ],
-    "collectCoverage": true,
-    "collectCoverageFrom": [
-      "./src/**"
-    ]
-  },
   "dependencies": {
-    "@actions/attest": "^2.1.0",
-    "@actions/core": "^2.0.1",
-    "@actions/github": "^6.0.1",
+    "@actions/attest": "^2.2.1",
+    "@actions/core": "^2.0.2",
+    "@actions/github": "^7.0.0",
     "@actions/glob": "^0.5.0",
     "@sigstore/oci": "^0.6.0",
     "csv-parse": "^5.6.0"
   },
   "devDependencies": {
     "@eslint/js": "^9.39.2",
+    "@jest/globals": "^30.2.0",
     "@sigstore/mock": "^0.11.0",
     "@types/jest": "^30.0.0",
     "@types/make-fetch-happen": "^10.0.4",
-    "@types/node": "^25.0.3",
+    "@types/node": "^25.2.0",
     "@vercel/ncc": "^0.38.4",
     "eslint": "^9.39.2",
+    "eslint-import-resolver-typescript": "^4.4.4",
     "eslint-plugin-import": "^2.32.0",
-    "eslint-plugin-jest": "^29.9.0",
+    "eslint-plugin-jest": "^29.12.1",
     "jest": "^30.2.0",
     "js-yaml": "^4.1.1",
     "markdownlint-cli": "^0.47.0",
     "nock": "^13.5.6",
-    "prettier": "^3.7.4",
+    "prettier": "^3.8.1",
     "ts-jest": "^29.4.6",
     "typescript": "^5.9.3",
-    "typescript-eslint": "^8.50.1",
-    "undici": "^7.18.2"
+    "typescript-eslint": "^8.54.0",
+    "undici": "^7.20.0"
   }
 }

src/attest.ts

@@ -6,7 +6,7 @@ import {
   createStorageRecord
 } from '@actions/attest'
 import { attachArtifactToImage, getRegistryCredentials } from '@sigstore/oci'
-import { formatSubjectDigest } from './subject'
+import { formatSubjectDigest } from './subject.js'
 import * as core from '@actions/core'
 import * as github from '@actions/github'
 

src/index.ts

@@ -2,7 +2,7 @@
  * The entrypoint for the action.
  */
 import * as core from '@actions/core'
-import { run, RunInputs } from './main'
+import { run, RunInputs } from './main.js'
 
 const inputs: RunInputs = {
   subjectPath: core.getInput('subject-path'),

src/main.ts

@@ -3,15 +3,15 @@ import * as github from '@actions/github'
 import fs from 'fs'
 import os from 'os'
 import path from 'path'
-import { AttestResult, SigstoreInstance, createAttestation } from './attest'
-import { SEARCH_PUBLIC_GOOD_URL } from './endpoints'
-import { PredicateInputs, predicateFromInputs } from './predicate'
-import * as style from './style'
+import { AttestResult, SigstoreInstance, createAttestation } from './attest.js'
+import { SEARCH_PUBLIC_GOOD_URL } from './endpoints.js'
+import { PredicateInputs, predicateFromInputs } from './predicate.js'
+import * as style from './style.js'
 import {
   SubjectInputs,
   formatSubjectDigest,
   subjectFromInputs
-} from './subject'
+} from './subject.js'
 
 import type { Subject } from '@actions/attest'
 

tsconfig.json

@@ -16,5 +16,5 @@
     "skipLibCheck": true,
     "newLine": "lf"
   },
-  "exclude": ["./dist", "./node_modules", "./__tests__", "./coverage"]
+  "exclude": ["./dist", "./node_modules", "./__tests__", "./coverage", "./jest.config.ts"]
 }

tsconfig.lint.json

@@ -2,8 +2,9 @@
   "$schema": "https://json.schemastore.org/tsconfig",
   "extends": "./tsconfig.json",
   "compilerOptions": {
-    "noEmit": true
+    "noEmit": true,
+    "rootDir": "."
   },
-  "include": ["./__tests__/**/*", "./src/**/*"],
+  "include": ["./__tests__/**/*", "./src/**/*", "./jest.config.ts"],
   "exclude": ["./dist", "./node_modules", "./coverage", "*.json"]
 }