Upgrade the module to ESM and bump dependencies

__tests__/merge.test.ts

@@ -1,8 +1,65 @@
-import * as core from '@actions/core'
-import artifact from '@actions/artifact'
-import {run} from '../src/merge/merge-artifacts'
-import {Inputs} from '../src/merge/constants'
-import * as search from '../src/shared/search'
+import {jest, describe, test, expect, beforeEach} from '@jest/globals'
+
+// Mock @actions/github before importing modules that use it
+jest.unstable_mockModule('@actions/github', () => ({
+  context: {
+    repo: {
+      owner: 'actions',
+      repo: 'toolkit'
+    },
+    runId: 123,
+    serverUrl: 'https://github.com'
+  },
+  getOctokit: jest.fn()
+}))
+
+// Mock @actions/core
+jest.unstable_mockModule('@actions/core', () => ({
+  getInput: jest.fn(),
+  getBooleanInput: jest.fn(),
+  setOutput: jest.fn(),
+  setFailed: jest.fn(),
+  setSecret: jest.fn(),
+  info: jest.fn(),
+  warning: jest.fn(),
+  debug: jest.fn(),
+  error: jest.fn(),
+  notice: jest.fn(),
+  startGroup: jest.fn(),
+  endGroup: jest.fn(),
+  isDebug: jest.fn(() => false),
+  getState: jest.fn(),
+  saveState: jest.fn(),
+  exportVariable: jest.fn(),
+  addPath: jest.fn(),
+  group: jest.fn((name: string, fn: () => Promise<unknown>) => fn()),
+  toPlatformPath: jest.fn((p: string) => p),
+  toWin32Path: jest.fn((p: string) => p),
+  toPosixPath: jest.fn((p: string) => p)
+}))
+
+// Mock fs/promises
+const actualFsPromises = await import('fs/promises')
+jest.unstable_mockModule('fs/promises', () => ({
+  ...actualFsPromises,
+  mkdtemp:
+    jest.fn<() => Promise<string>>().mockResolvedValue('/tmp/merge-artifact'),
+  rm: jest.fn<() => Promise<void>>().mockResolvedValue(undefined)
+}))
+
+// Mock shared search module
+const mockFindFilesToUpload = jest.fn<
+  () => Promise<{filesToUpload: string[]; rootDirectory: string}>
+>()
+jest.unstable_mockModule('../src/shared/search.js', () => ({
+  findFilesToUpload: mockFindFilesToUpload
+}))
+
+// Dynamic imports after mocking
+const core = await import('@actions/core')
+const artifact = await import('@actions/artifact')
+const {run} = await import('../src/merge/merge-artifacts.js')
+const {Inputs} = await import('../src/merge/constants.js')
 
 const fixtures = {
   artifactName: 'my-merged-artifact',
@@ -34,27 +91,10 @@ const fixtures = {
   ]
 }
 
-jest.mock('@actions/github', () => ({
-  context: {
-    repo: {
-      owner: 'actions',
-      repo: 'toolkit'
-    },
-    runId: 123,
-    serverUrl: 'https://github.com'
-  }
-}))
-
-jest.mock('@actions/core')
-
-jest.mock('fs/promises', () => ({
-  mkdtemp: jest.fn().mockResolvedValue('/tmp/merge-artifact'),
-  rm: jest.fn().mockResolvedValue(undefined)
-}))
-
-/* eslint-disable no-unused-vars */
-const mockInputs = (overrides?: Partial<{[K in Inputs]?: any}>) => {
-  const inputs = {
+const mockInputs = (
+  overrides?: Partial<{[K in (typeof Inputs)[keyof typeof Inputs]]?: any}>
+) => {
+  const inputs: Record<string, any> = {
     [Inputs.Name]: 'my-merged-artifact',
     [Inputs.Pattern]: '*',
     [Inputs.SeparateDirectories]: false,
@@ -64,10 +104,14 @@ const mockInputs = (overrides?: Partial<{[K in Inputs]?: any}>) => {
     ...overrides
   }
 
-  ;(core.getInput as jest.Mock).mockImplementation((name: string) => {
-    return inputs[name]
-  })
-  ;(core.getBooleanInput as jest.Mock).mockImplementation((name: string) => {
+  ;(core.getInput as jest.Mock<typeof core.getInput>).mockImplementation(
+    (name: string) => {
+      return inputs[name]
+    }
+  )
+  ;(
+    core.getBooleanInput as jest.Mock<typeof core.getBooleanInput>
+  ).mockImplementation((name: string) => {
     return inputs[name]
   })
 
@@ -77,44 +121,45 @@ const mockInputs = (overrides?: Partial<{[K in Inputs]?: any}>) => {
 describe('merge', () => {
   beforeEach(async () => {
     mockInputs()
+    jest.clearAllMocks()
 
     jest
-      .spyOn(artifact, 'listArtifacts')
+      .spyOn(artifact.default, 'listArtifacts')
       .mockResolvedValue({artifacts: fixtures.artifacts})
 
-    jest.spyOn(artifact, 'downloadArtifact').mockResolvedValue({
+    jest.spyOn(artifact.default, 'downloadArtifact').mockResolvedValue({
       downloadPath: fixtures.tmpDirectory
     })
 
-    jest.spyOn(search, 'findFilesToUpload').mockResolvedValue({
+    mockFindFilesToUpload.mockResolvedValue({
       filesToUpload: fixtures.filesToUpload,
       rootDirectory: fixtures.tmpDirectory
     })
 
-    jest.spyOn(artifact, 'uploadArtifact').mockResolvedValue({
+    jest.spyOn(artifact.default, 'uploadArtifact').mockResolvedValue({
       size: 123,
       id: 1337
     })
 
     jest
-      .spyOn(artifact, 'deleteArtifact')
-      .mockImplementation(async artifactName => {
-        const artifact = fixtures.artifacts.find(a => a.name === artifactName)
-        if (!artifact) throw new Error(`Artifact ${artifactName} not found`)
-        return {id: artifact.id}
+      .spyOn(artifact.default, 'deleteArtifact')
+      .mockImplementation(async (artifactName: string) => {
+        const found = fixtures.artifacts.find(a => a.name === artifactName)
+        if (!found) throw new Error(`Artifact ${artifactName} not found`)
+        return {id: found.id}
       })
   })
 
-  it('merges artifacts', async () => {
+  test('merges artifacts', async () => {
     await run()
 
     for (const a of fixtures.artifacts) {
-      expect(artifact.downloadArtifact).toHaveBeenCalledWith(a.id, {
+      expect(artifact.default.downloadArtifact).toHaveBeenCalledWith(a.id, {
         path: fixtures.tmpDirectory
       })
     }
 
-    expect(artifact.uploadArtifact).toHaveBeenCalledWith(
+    expect(artifact.default.uploadArtifact).toHaveBeenCalledWith(
       fixtures.artifactName,
       fixtures.filesToUpload,
       fixtures.tmpDirectory,
@@ -122,23 +167,23 @@ describe('merge', () => {
     )
   })
 
-  it('fails if no artifacts found', async () => {
+  test('fails if no artifacts found', async () => {
     mockInputs({[Inputs.Pattern]: 'this-does-not-match'})
 
-    expect(run()).rejects.toThrow()
+    await expect(run()).rejects.toThrow()
 
-    expect(artifact.uploadArtifact).not.toBeCalled()
-    expect(artifact.downloadArtifact).not.toBeCalled()
+    expect(artifact.default.uploadArtifact).not.toHaveBeenCalled()
+    expect(artifact.default.downloadArtifact).not.toHaveBeenCalled()
   })
 
-  it('supports custom compression level', async () => {
+  test('supports custom compression level', async () => {
     mockInputs({
       [Inputs.CompressionLevel]: 2
     })
 
     await run()
 
-    expect(artifact.uploadArtifact).toHaveBeenCalledWith(
+    expect(artifact.default.uploadArtifact).toHaveBeenCalledWith(
       fixtures.artifactName,
       fixtures.filesToUpload,
       fixtures.tmpDirectory,
@@ -146,14 +191,14 @@ describe('merge', () => {
     )
   })
 
-  it('supports custom retention days', async () => {
+  test('supports custom retention days', async () => {
     mockInputs({
       [Inputs.RetentionDays]: 7
     })
 
     await run()
 
-    expect(artifact.uploadArtifact).toHaveBeenCalledWith(
+    expect(artifact.default.uploadArtifact).toHaveBeenCalledWith(
       fixtures.artifactName,
       fixtures.filesToUpload,
       fixtures.tmpDirectory,
@@ -161,7 +206,7 @@ describe('merge', () => {
     )
   })
 
-  it('supports deleting artifacts after merge', async () => {
+  test('supports deleting artifacts after merge', async () => {
     mockInputs({
       [Inputs.DeleteMerged]: true
     })
@@ -169,7 +214,7 @@ describe('merge', () => {
     await run()
 
     for (const a of fixtures.artifacts) {
-      expect(artifact.deleteArtifact).toHaveBeenCalledWith(a.name)
+      expect(artifact.default.deleteArtifact).toHaveBeenCalledWith(a.name)
     }
   })
 })