diff --git a/packages/artifact/__tests__/list-artifacts.test.ts b/packages/artifact/__tests__/list-artifacts.test.ts
new file mode 100644
index 00000000..7c8699e7
--- /dev/null
+++ b/packages/artifact/__tests__/list-artifacts.test.ts
@@ -0,0 +1,242 @@
+import * as github from '@actions/github'
+import type {RestEndpointMethods} from '@octokit/plugin-rest-endpoint-methods/dist-types/generated/method-types'
+import type {RestEndpointMethodTypes} from '@octokit/plugin-rest-endpoint-methods/dist-types/generated/parameters-and-response-types'
+import {
+  listArtifactsInternal,
+  listArtifactsPublic
+} from '../src/internal/find/list-artifacts'
+import * as config from '../src/internal/shared/config'
+import {ArtifactServiceClientJSON, Timestamp} from '../src/generated'
+import * as util from '../src/internal/shared/util'
+import {noopLogs} from './common'
+import {Artifact} from '../src/internal/shared/interfaces'
+
+type MockedListWorkflowRunArtifacts = jest.MockedFunction<
+  RestEndpointMethods['actions']['listWorkflowRunArtifacts']
+>
+
+jest.mock('@actions/github', () => ({
+  getOctokit: jest.fn().mockReturnValue({
+    rest: {
+      actions: {
+        listWorkflowRunArtifacts: jest.fn()
+      }
+    }
+  })
+}))
+
+const artifactsToListResponse = (
+  artifacts: Artifact[]
+): RestEndpointMethodTypes['actions']['listWorkflowRunArtifacts']['response']['data'] => {
+  return {
+    total_count: artifacts.length,
+    artifacts: artifacts.map(artifact => ({
+      name: artifact.name,
+      id: artifact.id,
+      size_in_bytes: artifact.size,
+      created_at: artifact.createdAt?.toISOString() || '',
+      run_id: fixtures.runId,
+      // unused fields for tests
+      url: '',
+      archive_download_url: '',
+      expired: false,
+      expires_at: '',
+      node_id: '',
+      run_url: '',
+      type: '',
+      updated_at: ''
+    }))
+  }
+}
+
+const fixtures = {
+  repo: 'toolkit',
+  owner: 'actions',
+  token: 'ghp_1234567890',
+  runId: 123,
+  backendIds: {
+    workflowRunBackendId: 'c4d7c21f-ba3f-4ddc-a8c8-6f2f626f8422',
+    workflowJobRunBackendId: '760803a1-f890-4d25-9a6e-a3fc01a0c7cf'
+  },
+  artifacts: [
+    {
+      id: 1,
+      name: 'my-artifact',
+      size: 456,
+      createdAt: new Date('2023-12-01')
+    },
+    {
+      id: 2,
+      name: 'my-artifact',
+      size: 456,
+      createdAt: new Date('2023-12-02')
+    }
+  ]
+}
+
+describe('list-artifact', () => {
+  beforeAll(() => {
+    noopLogs()
+  })
+
+  describe('public', () => {
+    it('should return a list of artifacts', async () => {
+      const mockListArtifacts = github.getOctokit(fixtures.token).rest.actions
+        .listWorkflowRunArtifacts as MockedListWorkflowRunArtifacts
+
+      mockListArtifacts.mockResolvedValueOnce({
+        status: 200,
+        headers: {},
+        url: '',
+        data: artifactsToListResponse(fixtures.artifacts)
+      })
+
+      const response = await listArtifactsPublic(
+        fixtures.runId,
+        fixtures.owner,
+        fixtures.repo,
+        fixtures.token,
+        false
+      )
+
+      expect(response).toEqual({
+        artifacts: fixtures.artifacts
+      })
+    })
+
+    it('should return the latest artifact when latest is specified', async () => {
+      const mockListArtifacts = github.getOctokit(fixtures.token).rest.actions
+        .listWorkflowRunArtifacts as MockedListWorkflowRunArtifacts
+
+      mockListArtifacts.mockResolvedValueOnce({
+        status: 200,
+        headers: {},
+        url: '',
+        data: artifactsToListResponse(fixtures.artifacts)
+      })
+
+      const response = await listArtifactsPublic(
+        fixtures.runId,
+        fixtures.owner,
+        fixtures.repo,
+        fixtures.token,
+        true
+      )
+
+      expect(response).toEqual({
+        artifacts: [fixtures.artifacts[1]]
+      })
+    })
+
+    it('can return empty artifacts', async () => {
+      const mockListArtifacts = github.getOctokit(fixtures.token).rest.actions
+        .listWorkflowRunArtifacts as MockedListWorkflowRunArtifacts
+
+      mockListArtifacts.mockResolvedValueOnce({
+        status: 200,
+        headers: {},
+        url: '',
+        data: {
+          total_count: 0,
+          artifacts: []
+        }
+      })
+
+      const response = await listArtifactsPublic(
+        fixtures.runId,
+        fixtures.owner,
+        fixtures.repo,
+        fixtures.token,
+        true
+      )
+
+      expect(response).toEqual({
+        artifacts: []
+      })
+    })
+
+    it('should fail if non-200 response', async () => {
+      const mockListArtifacts = github.getOctokit(fixtures.token).rest.actions
+        .listWorkflowRunArtifacts as MockedListWorkflowRunArtifacts
+
+      mockListArtifacts.mockRejectedValue(new Error('boom'))
+
+      await expect(
+        listArtifactsPublic(
+          fixtures.runId,
+          fixtures.owner,
+          fixtures.repo,
+          fixtures.token,
+          false
+        )
+      ).rejects.toThrow('boom')
+    })
+  })
+
+  describe('internal', () => {
+    beforeEach(() => {
+      jest.spyOn(config, 'getRuntimeToken').mockReturnValue('test-token')
+      jest
+        .spyOn(util, 'getBackendIdsFromToken')
+        .mockReturnValue(fixtures.backendIds)
+      jest
+        .spyOn(config, 'getResultsServiceUrl')
+        .mockReturnValue('https://results.local')
+    })
+
+    it('should return a list of artifacts', async () => {
+      jest
+        .spyOn(ArtifactServiceClientJSON.prototype, 'ListArtifacts')
+        .mockResolvedValue({
+          artifacts: fixtures.artifacts.map(artifact => ({
+            ...fixtures.backendIds,
+            databaseId: artifact.id.toString(),
+            name: artifact.name,
+            size: artifact.size.toString(),
+            createdAt: Timestamp.fromDate(artifact.createdAt)
+          }))
+        })
+      const response = await listArtifactsInternal(false)
+      expect(response).toEqual({
+        artifacts: fixtures.artifacts
+      })
+    })
+
+    it('should return the latest artifact when latest is specified', async () => {
+      jest
+        .spyOn(ArtifactServiceClientJSON.prototype, 'ListArtifacts')
+        .mockResolvedValue({
+          artifacts: fixtures.artifacts.map(artifact => ({
+            ...fixtures.backendIds,
+            databaseId: artifact.id.toString(),
+            name: artifact.name,
+            size: artifact.size.toString(),
+            createdAt: Timestamp.fromDate(artifact.createdAt)
+          }))
+        })
+      const response = await listArtifactsInternal(true)
+      expect(response).toEqual({
+        artifacts: [fixtures.artifacts[1]]
+      })
+    })
+
+    it('can return empty artifacts', async () => {
+      jest
+        .spyOn(ArtifactServiceClientJSON.prototype, 'ListArtifacts')
+        .mockResolvedValue({
+          artifacts: []
+        })
+      const response = await listArtifactsInternal(false)
+      expect(response).toEqual({
+        artifacts: []
+      })
+    })
+
+    it('should fail if non-200 response', async () => {
+      jest
+        .spyOn(ArtifactServiceClientJSON.prototype, 'ListArtifacts')
+        .mockRejectedValue(new Error('boom'))
+      await expect(listArtifactsInternal(false)).rejects.toThrow('boom')
+    })
+  })
+})