[RN][Releases] Automate the draft release creation

.github/workflow-scripts/__tests__/createDraftRelease-test.js

@@ -0,0 +1,305 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+const {
+  _verifyTagExists,
+  _extractChangelog,
+  _computeBody,
+  _createDraftReleaseOnGitHub,
+} = require('../createDraftRelease');
+
+const fs = require('fs');
+
+const silence = () => {};
+const mockFetch = jest.fn();
+
+jest.mock('../utils.js', () => ({
+  log: silence,
+}));
+
+global.fetch = mockFetch;
+
+describe('Create Draft Release', () => {
+  beforeEach(jest.clearAllMocks);
+
+  describe('#_verifyTagExists', () => {
+    it('throws if the tag does not exists', async () => {
+      const token = 'token';
+      mockFetch.mockReturnValueOnce(Promise.resolve({status: 404}));
+
+      await expect(_verifyTagExists('0.77.1')).rejects.toThrowError(
+        `Tag v0.77.1 does not exist`,
+      );
+      expect(mockFetch).toHaveBeenCalledTimes(1);
+      expect(mockFetch).toHaveBeenCalledWith(
+        'https://github.com/facebook/react-native/releases/tag/v0.77.1',
+      );
+    });
+  });
+
+  describe('#_extractChangelog', () => {
+    it(`extracts changelog from CHANGELOG.md`, async () => {
+      const mockedReturnValue = `# Changelog
+
+## v0.77.2
+
+- [PR #1234](https://github.com/facebook/react-native/pull/1234) - Some change
+- [PR #5678](https://github.com/facebook/react-native/pull/5678) - Some other change
+
+
+## v0.77.1
+### Breaking Changes
+- [PR #9012](https://github.com/facebook/react-native/pull/9012) - Some other change
+
+#### Android
+- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
+- [PR #3457](https://github.com/facebook/react-native/pull/3457) - Some other change
+
+#### iOS
+- [PR #3436](https://github.com/facebook/react-native/pull/3436) - Some other change
+- [PR #3437](https://github.com/facebook/react-native/pull/3437) - Some other change
+
+### Fixed
+- [PR #9012](https://github.com/facebook/react-native/pull/9012) - Some other change
+
+#### Android
+- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
+
+#### iOS
+- [PR #3437](https://github.com/facebook/react-native/pull/3437) - Some other change
+
+
+## v0.77.0
+
+- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
+
+## v0.76.0
+
+- [PR #7890](https://github.com/facebook/react-native/pull/7890) - Some other change`;
+
+      jest.spyOn(fs, 'readFileSync').mockImplementationOnce(func => {
+        return mockedReturnValue;
+      });
+      const changelog = _extractChangelog('0.77.1');
+      expect(changelog).toEqual(`## v0.77.1
+### Breaking Changes
+- [PR #9012](https://github.com/facebook/react-native/pull/9012) - Some other change
+
+#### Android
+- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
+- [PR #3457](https://github.com/facebook/react-native/pull/3457) - Some other change
+
+#### iOS
+- [PR #3436](https://github.com/facebook/react-native/pull/3436) - Some other change
+- [PR #3437](https://github.com/facebook/react-native/pull/3437) - Some other change
+
+### Fixed
+- [PR #9012](https://github.com/facebook/react-native/pull/9012) - Some other change
+
+#### Android
+- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
+
+#### iOS
+- [PR #3437](https://github.com/facebook/react-native/pull/3437) - Some other change`);
+    });
+
+    it('does not extract changelog for rc.0', async () => {
+      const changelog = _extractChangelog('0.77.0-rc.0');
+      expect(changelog).toEqual('');
+    });
+
+    it('does not extract changelog for 0.X.0', async () => {
+      const changelog = _extractChangelog('0.77.0');
+      expect(changelog).toEqual('');
+    });
+  });
+
+  describe('#_computeBody', () => {
+    it('computes body for release', async () => {
+      const version = '0.77.1';
+      const changelog = `## v${version}
+### Breaking Changes
+- [PR #9012](https://github.com/facebook/react-native/pull/9012) - Some other change
+
+#### Android
+- [PR #3456](https://github.com/facebook/react-native/pull/3456) - Some other change
+- [PR #3457](https://github.com/facebook/react-native/pull/3457) - Some other change
+
+#### iOS
+- [PR #3436](https://github.com/facebook/react-native/pull/3436) - Some other change
+- [PR #3437](https://github.com/facebook/react-native/pull/3437) - Some other change`;
+      const body = _computeBody(version, changelog);
+
+      expect(body).toEqual(`${changelog}
+
+---
+
+Hermes dSYMS:
+- [Debug](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-hermes-framework-dSYM-debug.tar.gz)
+- [Release](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-hermes-framework-dSYM-release.tar.gz)
+
+ReactNativeDependencies dSYMs:
+- [Debug](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-dependencies-dSYM-debug.tar.gz)
+- [Release](https://repo1.maven.org/maven2/com/facebook/react/react-native-artifacts/${version}/react-native-artifacts-${version}-reactnative-dependencies-dSYM-release.tar.gz)
+
+---
+
+You can file issues or pick requests against this release [here](https://github.com/reactwg/react-native-releases/issues/new/choose).
+
+---
+
+To help you upgrade to this version, you can use the [Upgrade Helper](https://react-native-community.github.io/upgrade-helper/) ⚛️.
+
+---
+
+View the whole changelog in the [CHANGELOG.md file](https://github.com/facebook/react-native/blob/main/CHANGELOG.md).`);
+    });
+  });
+
+  describe('#_createDraftReleaseOnGitHub', () => {
+    it('creates a draft release on GitHub', async () => {
+      const version = '0.77.1';
+      const url = 'https://api.github.com/repos/facebook/react-native/releases';
+      const token = 'token';
+      const headers = {
+        Accept: 'Accept: application/vnd.github+json',
+        'X-GitHub-Api-Version': '2022-11-28',
+        Authorization: `Bearer ${token}`,
+      };
+      const body = `Draft release body`;
+      const latest = true;
+      const fetchBody = JSON.stringify({
+        tag_name: `v${version}`,
+        name: `${version}`,
+        body: body,
+        draft: true,
+        prerelease: false,
+        make_latest: `${latest}`,
+      });
+
+      mockFetch.mockReturnValueOnce(
+        Promise.resolve({
+          status: 201,
+          json: () =>
+            Promise.resolve({
+              html_url:
+                'https://github.com/facebook/react-native/releases/tag/v0.77.1',
+            }),
+        }),
+      );
+      const response = await _createDraftReleaseOnGitHub(
+        version,
+        body,
+        latest,
+        token,
+      );
+      expect(mockFetch).toHaveBeenCalledTimes(1);
+      expect(mockFetch).toHaveBeenCalledWith(
+        `https://api.github.com/repos/facebook/react-native/releases`,
+        {
+          method: 'POST',
+          headers: headers,
+          body: fetchBody,
+        },
+      );
+      expect(response).toEqual(
+        'https://github.com/facebook/react-native/releases/tag/v0.77.1',
+      );
+    });
+
+    it('creates a draft release for prerelease on GitHub', async () => {
+      const version = '0.77.0-rc.2';
+      const url = 'https://api.github.com/repos/facebook/react-native/releases';
+      const token = 'token';
+      const headers = {
+        Accept: 'Accept: application/vnd.github+json',
+        'X-GitHub-Api-Version': '2022-11-28',
+        Authorization: `Bearer ${token}`,
+      };
+      const body = `Draft release body`;
+      const latest = true;
+      const fetchBody = JSON.stringify({
+        tag_name: `v${version}`,
+        name: `${version}`,
+        body: body,
+        draft: true,
+        prerelease: true,
+        make_latest: `${latest}`,
+      });
+
+      mockFetch.mockReturnValueOnce(
+        Promise.resolve({
+          status: 201,
+          json: () =>
+            Promise.resolve({
+              html_url:
+                'https://github.com/facebook/react-native/releases/tag/v0.77.1',
+            }),
+        }),
+      );
+      const response = await _createDraftReleaseOnGitHub(
+        version,
+        body,
+        latest,
+        token,
+      );
+      expect(mockFetch).toHaveBeenCalledTimes(1);
+      expect(mockFetch).toHaveBeenCalledWith(
+        `https://api.github.com/repos/facebook/react-native/releases`,
+        {
+          method: 'POST',
+          headers: headers,
+          body: fetchBody,
+        },
+      );
+      expect(response).toEqual(
+        'https://github.com/facebook/react-native/releases/tag/v0.77.1',
+      );
+    });
+
+    it('throws if the post failes', async () => {
+      const version = '0.77.0-rc.2';
+      const url = 'https://api.github.com/repos/facebook/react-native/releases';
+      const token = 'token';
+      const headers = {
+        Accept: 'Accept: application/vnd.github+json',
+        'X-GitHub-Api-Version': '2022-11-28',
+        Authorization: `Bearer ${token}`,
+      };
+      const body = `Draft release body`;
+      const latest = true;
+      const fetchBody = JSON.stringify({
+        tag_name: `v${version}`,
+        name: `${version}`,
+        body: body,
+        draft: true,
+        prerelease: true,
+        make_latest: `${latest}`,
+      });
+
+      mockFetch.mockReturnValueOnce(
+        Promise.resolve({
+          status: 401,
+        }),
+      );
+      await expect(
+        _createDraftReleaseOnGitHub(version, body, latest, token),
+      ).rejects.toThrowError();
+      expect(mockFetch).toHaveBeenCalledTimes(1);
+      expect(mockFetch).toHaveBeenCalledWith(
+        `https://api.github.com/repos/facebook/react-native/releases`,
+        {
+          method: 'POST',
+          headers: headers,
+          body: fetchBody,
+        },
+      );
+    });
+  });
+});