Add unit test suite with Jest (122 tests covering all modules)#675
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Add unit test suite with Jest (122 tests covering all modules)#675devin-ai-integration[bot] wants to merge 1 commit into
devin-ai-integration[bot] wants to merge 1 commit into
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- Set up Jest with jsdom environment for testing Chrome extension code - Add 122 unit tests covering all JavaScript modules: - leetcode.js: convertToSlug, addLeadingZeros, checkElem, parseCode, parseStats, languages mapping - gfg.js: toKebabCase, findGfgLanguage, findTitle, findDifficulty, getProblemStatement - background.js: handleMessage with various request scenarios - welcome.js: statusCode and linkStatusCode error handling - oauth2.js: oAuth2 init/begin, localAuth parseAccessCode - Update .eslintrc with Jest environment override for test files - Add npm test and test:coverage scripts to package.json Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
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Summary
The repo had zero test coverage — no test framework, no test files, no test runner. This PR bootstraps a full unit testing setup and adds 122 tests across all 5 JavaScript modules.
What changed
Jest + jsdom configured —
package.jsongainsjest,jest-environment-jsdomdevDeps,"test"and"test:coverage"scripts, and ajestconfig block pointing at__tests__/..eslintrc— added anoverridesentry enabling thejestenv for test files sodescribe/test/expectglobals are recognized.__tests__/leetcode.test.js(59 tests) — covers the pure utility functions extracted from the largest module:convertToSlug(slug generation with accented chars,&→-and-, trimming)addLeadingZeros(zero-padding problem number prefixes to 4 digits)checkElem(null/empty guard for DOM collections)parseCode/parseStats(DOM parsing with jsdom)languagesmapping validation__tests__/gfg.test.js(26 tests) —toKebabCase,findGfgLanguage,findTitle,findDifficulty,getProblemStatement.__tests__/background.test.js(10 tests) —handleMessagewith success/failure/null request paths, verifying chrome storage calls and tab management.__tests__/welcome.test.js(19 tests) —statusCodeandlinkStatusCodeswitch-case error handling for all HTTP status codes.__tests__/oauth2.test.js(16 tests) —oAuth2.init/beginflow andlocalAuth.parseAccessCodeURL parsing.Run
Link to Devin session: https://app.devin.ai/sessions/e41e515cfabe41378e5f164311dd6774
Requested by: @QasimWani