unit tests for new code

Author: jake-perkins

src/update-changelog.test.ts

@@ -0,0 +1,51 @@
+import * as ChangeLogManager from './update-changelog';
+
+const uncategorizedChangelog = `# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [1.0.0]
+### Uncategorized
+- fix: a commit of the type fix patches a bug in your codebase
+- feat: a commit of the type feat introduces a new feature to the codebase
+- unknown: a commit of the type unknown does not match any of the conventional commit types
+
+[Unreleased]: https://github.com/ExampleUsernameOrOrganization/ExampleRepository/
+`;
+  
+
+describe('updateChangelog', () => {
+    it('should contain conventional support mappings categorization', async () => {
+            // Call updateChangelog, which internally calls the mocked getNewChangeEntries
+            const result = await ChangeLogManager.updateChangelog({
+                changelogContent: uncategorizedChangelog,
+                currentVersion: '1.0.0',
+                repoUrl: 'https://github.com/ExampleUsernameOrOrganization/ExampleRepository',
+                isReleaseCandidate: true,
+                autoCategorize: true
+            });
+
+            // Verify that some of the commits are included in the result
+            expect(result).toContain('### Added');
+            expect(result).toContain('### Fixed');
+    });
+
+    it('should not contain conventional support mappings categorization', async () => {
+        // Call updateChangelog, which internally calls the mocked getNewChangeEntries
+        const result = await ChangeLogManager.updateChangelog({
+            changelogContent: uncategorizedChangelog,
+            currentVersion: '1.0.0',
+            repoUrl: 'https://github.com/ExampleUsernameOrOrganization/ExampleRepository',
+            isReleaseCandidate: true,
+            autoCategorize: false
+        });
+
+        // Verify that some of the commits are included in the result
+        expect(result).toContain('### Uncategorized');
+        expect(result).not.toContain('### Fixed');
+});
+});

src/update-changelog.ts

@@ -180,7 +180,7 @@ type AddNewCommitsOptions = {
  * current git repository.
  * @returns A list of new change entries to add to the changelog, based on commits made since the last release.
  */
-async function getNewChangeEntries({
+export async function getNewChangeEntries({
   mostRecentTag,
   repoUrl,
   loggedPrNumbers,