Add release functions tests

__mocks__/@actions/github.ts

@@ -0,0 +1,41 @@
+const mockApi = {
+  rest: {
+    issues: {
+      addLabels: jest.fn(),
+      removeLabel: jest.fn(),
+    },
+    pulls: {
+      get: jest.fn().mockResolvedValue({}),
+      listFiles: {
+        endpoint: {
+          merge: jest.fn().mockReturnValue({}),
+        },
+      },
+    },
+    repos: {
+      getContent: jest.fn(),
+      listReleases: jest.fn(),
+      createRelease: jest.fn(),
+      updateRelease: jest.fn(),
+      generateReleaseNotes: jest.fn(),
+    },
+  },
+  paginate: jest.fn().mockImplementation(async (method, options) => {
+    const response = await method(options)
+    return response.data
+  }),
+}
+export const context = {
+  payload: {
+    pull_request: {
+      number: 123,
+    },
+  },
+  repo: {
+    owner: 'monalisa',
+    repo: 'helloworld',
+  },
+  ref: 'refs/heads/main',
+}
+
+export const getOctokit = jest.fn().mockImplementation(() => mockApi)

__tests__/release.test.ts

@@ -0,0 +1,236 @@
+import {getRelease, createOrUpdateRelease} from '../src/release'
+import * as github from '@actions/github'
+import {Inputs} from '../src/context'
+
+const fs = jest.requireActual('fs')
+
+jest.mock('@actions/core')
+jest.mock('@actions/github')
+
+let gh: ReturnType<typeof github.getOctokit>
+
+describe('getRelease', () => {
+  beforeEach(() => {
+    jest.clearAllMocks()
+    gh = github.getOctokit('_')
+  })
+
+  it('should return the latest release when multiple releases exist', async () => {
+    const mockResponse: any = {
+      headers: {},
+      status: 200,
+      data: [
+        {
+          tag_name: 'v1.0.2',
+          target_commitish: 'main',
+          draft: false,
+        },
+        {
+          tag_name: 'v1.0.1',
+          target_commitish: 'main',
+          draft: false,
+        },
+        {
+          tag_name: 'v1.0.0',
+          target_commitish: 'main',
+          draft: false,
+        },
+      ],
+    }
+
+    const mockReleases = jest.spyOn(gh.rest.repos, 'listReleases')
+    mockReleases.mockResolvedValue(mockResponse)
+
+    const [releases, latestRelease] = await getRelease(gh)
+
+    expect(releases).toHaveLength(3)
+    expect(latestRelease).toBe('v1.0.2')
+  })
+
+  it('should return the latest for the current branch', async () => {
+    const mockResponse: any = {
+      headers: {},
+      status: 200,
+      data: [
+        {
+          tag_name: 'v1.0.2',
+          target_commitish: 'dev',
+          draft: false,
+        },
+        {
+          tag_name: 'v1.0.1',
+          target_commitish: 'main',
+          draft: false,
+        },
+        {
+          tag_name: 'v1.0.0',
+          target_commitish: 'main',
+          draft: false,
+        },
+      ],
+    }
+
+    const mockReleases = jest.spyOn(gh.rest.repos, 'listReleases')
+    mockReleases.mockResolvedValue(mockResponse)
+
+    const [releases, latestRelease] = await getRelease(gh)
+
+    expect(releases).toHaveLength(3)
+    expect(latestRelease).toBe('v1.0.1')
+  })
+
+  it('should return the latest non-draft release', async () => {
+    const mockResponse: any = {
+      headers: {},
+      status: 200,
+      data: [
+        {
+          tag_name: 'v1.0.2',
+          target_commitish: 'dev',
+          draft: false,
+        },
+        {
+          tag_name: 'v1.0.1',
+          target_commitish: 'main',
+          draft: true,
+        },
+        {
+          tag_name: 'v1.0.0',
+          target_commitish: 'main',
+          draft: false,
+        },
+      ],
+    }
+
+    const mockReleases = jest.spyOn(gh.rest.repos, 'listReleases')
+    mockReleases.mockResolvedValue(mockResponse)
+
+    const [releases, latestRelease] = await getRelease(gh)
+
+    expect(releases).toHaveLength(3)
+    expect(latestRelease).toBe('v1.0.0')
+  })
+
+  it('should return v0.0.0 when no releases exist', async () => {
+    const mockResponse: any = {
+      headers: {},
+      status: 200,
+      data: [],
+    }
+
+    const mockReleases = jest.spyOn(gh.rest.repos, 'listReleases')
+    mockReleases.mockResolvedValue(mockResponse)
+
+    const [releases, latestRelease] = await getRelease(gh)
+
+    expect(releases).toHaveLength(0)
+    expect(latestRelease).toBe('v0.0.0')
+  })
+})
+
+describe('createOrUpdateRelease', () => {
+  let mockResponse: any
+  let mockNotes: any
+  const inputs: Inputs = {
+    githubToken: '_',
+    majorLabel: 'major',
+    minorLabel: 'minor',
+    header: 'header',
+    footer: 'footer',
+  }
+  beforeEach(() => {
+    jest.clearAllMocks()
+    gh = github.getOctokit('_')
+    mockResponse = {
+      headers: {},
+      status: 200,
+      data: [
+        {
+          id: 1,
+          tag_name: 'v1.0.0',
+          target_commitish: 'main',
+          draft: false,
+          body: 'header',
+        },
+        {
+          id: 2,
+          tag_name: 'v1.0.1',
+          target_commitish: 'main',
+          draft: true,
+          body: 'header',
+        },
+      ],
+    }
+
+    mockNotes = {
+      headers: {},
+      status: 200,
+      data: {
+        body: 'header',
+        name: 'v1.0.1',
+      },
+    }
+  })
+
+  it('should create a new release draft', async () => {
+    const mockInputCreate: any = {
+      headers: {},
+      status: 200,
+      data: [
+        {
+          id: 1,
+          tag_name: 'v1.0.0',
+          target_commitish: 'main',
+          draft: false,
+        },
+      ],
+    }
+
+    const mockReleases = jest.spyOn(gh.rest.repos, 'createRelease')
+    mockReleases.mockResolvedValue(mockResponse)
+
+    const mockRelease = jest.spyOn(gh.rest.repos, 'listReleases')
+    mockRelease.mockResolvedValue(mockInputCreate)
+
+    const mockReleaseNotes = jest.spyOn(gh.rest.repos, 'generateReleaseNotes')
+    mockReleaseNotes.mockResolvedValue(mockNotes)
+
+    const response = await createOrUpdateRelease(gh, inputs, mockInputCreate.data, 'v1.0.0', 'v1.0.1')
+
+    expect(mockReleases).toHaveBeenCalledTimes(1)
+  })
+
+  it('should update an existing release draft', async () => {
+    const mockInputUpdate: any = {
+      headers: {},
+      status: 200,
+      data: [
+        {
+          id: 1,
+          tag_name: 'v1.0.0',
+          target_commitish: 'main',
+          draft: false,
+        },
+        {
+          id: 2,
+          tag_name: 'v1.0.1',
+          target_commitish: 'main',
+          draft: true,
+        },
+      ],
+    }
+
+    const mockReleases = jest.spyOn(gh.rest.repos, 'updateRelease')
+    mockReleases.mockResolvedValue(mockResponse)
+
+    const mockRelease = jest.spyOn(gh.rest.repos, 'listReleases')
+    mockRelease.mockResolvedValue(mockInputUpdate)
+
+    const mockReleaseNotes = jest.spyOn(gh.rest.repos, 'generateReleaseNotes')
+    mockReleaseNotes.mockResolvedValue(mockNotes)
+
+    const response = await createOrUpdateRelease(gh, inputs, mockInputUpdate.data, 'v1.0.0', 'v1.0.1')
+
+    expect(mockReleases).toHaveBeenCalledTimes(1)
+  })
+})

package.json

@@ -32,6 +32,7 @@
     "semver": "^7.3.8"
   },
   "devDependencies": {
+    "@types/jest": "^29.5.0",
     "@types/js-yaml": "^4.0.5",
     "@types/node": "^18.15.3",
     "@typescript-eslint/parser": "^5.55.0",