Add CodSpeed performance benchmarks#50
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…isort, Prettier, RuboCop, Ruff Formatter, Rustfmt, Scalafmt, StandardJS, StandardRB, swift-format and Yapf This commit fixes the style issues introduced in 669c7ba according to the output from Autopep8, Black, ClangFormat, dotnet-format, isort, Prettier, RuboCop, Ruff Formatter, Rustfmt, Scalafmt, StandardJS, StandardRB, swift-format and Yapf. Details: #50
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PR Summary
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![codereviewbot-ai[bot]](https://avatars.githubusercontent.com/in/309638?s=60&v=4){kind=small}
| category: "Puzzle", | ||
| }, | ||
| ]; | ||
| import { games } from "@/lib/games"; |
There was a problem hiding this comment.
Potential runtime error due to lack of validation for imported games array.
If games is undefined, null, or not an array, the component will fail at runtime when calling games.map. Consider validating the imported data before usage:
const validGames = Array.isArray(games) ? games : [];Or handle errors gracefully to improve robustness.
| export function filterByCategory( | ||
| gameList: Game[], | ||
| category: string, | ||
| ): Game[] { | ||
| return gameList.filter( | ||
| (game) => game.category.toLowerCase() === category.toLowerCase(), | ||
| ); | ||
| } | ||
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| export function searchGames(gameList: Game[], query: string): Game[] { | ||
| const lowerQuery = query.toLowerCase(); | ||
| return gameList.filter( | ||
| (game) => | ||
| game.title.toLowerCase().includes(lowerQuery) || | ||
| game.description.toLowerCase().includes(lowerQuery), | ||
| ); | ||
| } | ||
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| export function sortByTitle(gameList: Game[], ascending = true): Game[] { | ||
| return [...gameList].sort((a, b) => { | ||
| const cmp = a.title.localeCompare(b.title); | ||
| return ascending ? cmp : -cmp; | ||
| }); | ||
| } | ||
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| export function getCategories(gameList: Game[]): string[] { | ||
| return [...new Set(gameList.map((game) => game.category))].sort(); | ||
| } | ||
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| export function getGameById( | ||
| gameList: Game[], | ||
| id: number, | ||
| ): Game | undefined { | ||
| return gameList.find((game) => game.id === id); | ||
| } |
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Input Validation Missing in Utility Functions
The utility functions (filterByCategory, searchGames, sortByTitle, getCategories, getGameById) do not validate their input parameters. If null or undefined is passed for gameList, category, or query, this will result in runtime errors such as:
TypeError: Cannot read properties of undefined (reading 'filter')TypeError: Cannot read properties of undefined (reading 'toLowerCase')
Recommended Solution:
Add input validation at the start of each function to ensure parameters are defined and of the expected type. For example:
if (!Array.isArray(gameList)) return [];
if (typeof category !== 'string') return [];This will make the functions more robust and prevent runtime errors from invalid inputs.
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Review the following changes in direct dependencies. Learn more about Socket for GitHub.
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| function generateLargeGameList(size: number): Game[] { | ||
| const categories = [ | ||
| "Strategy", | ||
| "Trivia", | ||
| "Puzzle", | ||
| "Arcade", | ||
| "Word", | ||
| "RPG", | ||
| "Action", | ||
| "Simulation", | ||
| ]; | ||
| const result: Game[] = []; | ||
| for (let i = 0; i < size; i++) { | ||
| result.push({ | ||
| id: i + 1, | ||
| title: `Game ${i + 1}`, | ||
| description: `Description for game number ${i + 1} with various keywords and details.`, | ||
| image: `/placeholder.svg?height=200&width=300`, | ||
| category: categories[i % categories.length], | ||
| }); | ||
| } | ||
| return result; | ||
| } |
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Dataset Realism for Benchmarks
The generateLargeGameList function creates games with unique titles and descriptions. This may not accurately reflect real-world scenarios where games can have similar or duplicate titles and descriptions. For more realistic benchmarking, consider introducing some repeated or similar values in the dataset to better simulate actual search and sort conditions.
Recommended solution:
Modify the dataset generation to include some duplicate or similar titles/descriptions:
const title = i % 10 === 0 ? "Game Special" : `Game ${i + 1}`;
const description = i % 5 === 0 ? "Common description" : `Description for game number ${i + 1}`;| const largeGameList = generateLargeGameList(1000); | ||
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| describe("filterByCategory", () => { | ||
| bench("filter base games by category", () => { | ||
| filterByCategory(games, "Puzzle"); | ||
| }); | ||
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| bench("filter 1000 games by category", () => { | ||
| filterByCategory(largeGameList, "Puzzle"); | ||
| }); | ||
| }); | ||
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| describe("searchGames", () => { | ||
| bench("search base games by title", () => { | ||
| searchGames(games, "chess"); | ||
| }); | ||
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| bench("search 1000 games by keyword", () => { | ||
| searchGames(largeGameList, "keywords"); | ||
| }); | ||
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| bench("search with no results", () => { | ||
| searchGames(largeGameList, "nonexistent-query-string"); | ||
| }); | ||
| }); | ||
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| describe("sortByTitle", () => { | ||
| bench("sort base games ascending", () => { | ||
| sortByTitle(games); | ||
| }); | ||
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| bench("sort 1000 games ascending", () => { | ||
| sortByTitle(largeGameList); | ||
| }); | ||
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| bench("sort 1000 games descending", () => { | ||
| sortByTitle(largeGameList, false); | ||
| }); | ||
| }); | ||
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| describe("getCategories", () => { | ||
| bench("get categories from base games", () => { | ||
| getCategories(games); | ||
| }); | ||
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| bench("get categories from 1000 games", () => { | ||
| getCategories(largeGameList); | ||
| }); | ||
| }); | ||
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| describe("getGameById", () => { | ||
| bench("find first game by id", () => { | ||
| getGameById(games, 1); | ||
| }); | ||
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| bench("find last game by id in 1000 games", () => { | ||
| getGameById(largeGameList, 1000); | ||
| }); | ||
| }); |
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Missing Edge Case Benchmarks
The current benchmarks do not test edge cases such as empty arrays or invalid input values. Including such cases can help ensure the robustness and error handling of the library functions under test.
Recommended solution:
Add additional benchmarks for empty arrays and invalid inputs:
describe("edge cases", () => {
bench("filter empty array", () => {
filterByCategory([], "Puzzle");
});
bench("search empty array", () => {
searchGames([], "chess");
});
bench("sort empty array", () => {
sortByTitle([]);
});
bench("get categories from empty array", () => {
getCategories([]);
});
bench("get game by invalid id", () => {
getGameById(games, -1);
});
});![codescene-delta-analysis[bot]](https://avatars.githubusercontent.com/in/53921?s=60&v=4){kind=small}
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Reviewer's GuideSets up CodSpeed-powered Vitest benchmarks for shared game utility functions, including a new games library module, benchmark suite, Vitest configuration, CI workflow, and a README badge, while refactoring the home page to consume the shared data module. Flow diagram for CodSpeed benchmark CI workflowflowchart LR
dev[Developer push or PR]
gha[GitHub Actions codspeed.yml]
deps[npm ci]
vitest[Vitest bench with @codspeed/vitest-plugin]
codspeed[CodSpeed service]
dev --> gha
gha --> deps
deps --> vitest
vitest --> codspeed
File-Level Changes
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Gates Passed
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Code Review Summary
| Analyzer | Status | Updated (UTC) | Details |
|---|---|---|---|
| JavaScript |  |
May 25, 2026 1:25a.m. | Review ↗ |
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| Swift | |
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| C & C++ | |
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❌ 2 blocking issues (2 total)
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![qltysh[bot]](https://avatars.githubusercontent.com/in/890766?s=60&v=4){kind=small}
| name: Run benchmarks | ||
| runs-on: ubuntu-latest | ||
| steps: | ||
| - uses: actions/checkout@v4 |
| run: npm ci | ||
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| - name: Run benchmarks | ||
| uses: CodSpeedHQ/action@v4 |
Congrats! CodSpeed is installed 🎉
You will start to see performance impacts in the reports once the benchmarks are run from your default branch.
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![devin-ai-integration[bot]](https://avatars.githubusercontent.com/in/811515?s=60&v=4){kind=small}
| export const games: Game[] = [ | ||
| { | ||
| id: 1, | ||
| title: "Chess Master", | ||
| description: "Play chess against AI or friends online in real time.", | ||
| image: "/placeholder.svg?height=200&width=300", | ||
| category: "Strategy", | ||
| }, | ||
| { | ||
| id: 2, | ||
| title: "Quick Quiz", | ||
| description: "Test your knowledge with fun trivia questions.", | ||
| image: "/placeholder.svg?height=200&width=300", | ||
| category: "Trivia", | ||
| }, | ||
| { | ||
| id: 3, | ||
| title: "Memory Match", | ||
| description: "Challenge your memory with this classic card-matching game.", | ||
| image: "/placeholder.svg?height=200&width=300", | ||
| category: "Puzzle", | ||
| }, | ||
| { | ||
| id: 4, | ||
| title: "Snake Game", | ||
| description: "Eat food, grow longer, and avoid running into yourself.", | ||
| image: "/placeholder.svg?height=200&width=300", | ||
| category: "Arcade", | ||
| }, | ||
| { | ||
| id: 5, | ||
| title: "Word Builder", | ||
| description: "Create as many words as you can from scrambled letters.", | ||
| image: "/placeholder.svg?height=200&width=300", | ||
| category: "Word", | ||
| }, | ||
| { | ||
| id: 6, | ||
| title: "Puzzle Solver", | ||
| description: "Solve challenging jigsaw puzzles of increasing difficulty.", | ||
| image: "/placeholder.svg?height=200&width=300", | ||
| category: "Puzzle", | ||
| }, | ||
| ]; |
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📝 Info: Exported games array is mutable — consumers could accidentally modify shared state
The games array at lib/games.ts:9 is exported as a mutable const (only the binding is const, not the contents). Any consumer could call games.push(...) or games[0].title = '...' and corrupt the shared data. Currently no consumer mutates it — app/page.tsx only reads it, and all utility functions (sortByTitle spreads before sorting, filter creates new arrays) are careful not to mutate. However, since this is now a shared module intended for broader use, consider using as const or Object.freeze to prevent accidental mutation in the future.
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| export function searchGames(gameList: Game[], query: string): Game[] { | ||
| const lowerQuery = query.toLowerCase(); | ||
| return gameList.filter( | ||
| (game) => | ||
| game.title.toLowerCase().includes(lowerQuery) || | ||
| game.description.toLowerCase().includes(lowerQuery), | ||
| ); | ||
| } |
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📝 Info: searchGames returns all results when called with an empty string
In lib/games.ts:60-67, searchGames with query="" will return all games because ''.toLowerCase() is '' and every string .includes('') is true. This is a common convention (empty query = no filter), so it's not necessarily wrong, but it's worth being aware of this behavior since it's implicit rather than documented. If the intent is to require a non-empty query, a guard clause would be needed.
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![sourcery-ai[bot]](https://avatars.githubusercontent.com/in/48477?s=60&v=4){kind=small}
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Hey - I've found 1 issue
Prompt for AI Agents
Please address the comments from this code review:
## Individual Comments
### Comment 1
<location path="lib/games.ts" line_range="54-58" />
<code_context>
+ },
+];
+
+export function filterByCategory(gameList: Game[], category: string): Game[] {
+ return gameList.filter(
+ (game) => game.category.toLowerCase() === category.toLowerCase(),
+ );
+}
</code_context>
<issue_to_address>
**suggestion:** Consider normalizing/cleaning the category input (e.g. trimming) before comparison.
Currently only case-insensitive differences are handled. If `category` has leading/trailing whitespace or similar minor formatting differences, the filter will return no matches. Normalizing once (e.g. `const normalized = category.trim().toLowerCase();`) and using that for comparison would make this more robust to common input variations.
```suggestion
export function filterByCategory(gameList: Game[], category: string): Game[] {
const normalizedCategory = category.trim().toLowerCase();
return gameList.filter((game) => {
const gameCategory = game.category?.trim().toLowerCase();
return gameCategory === normalizedCategory;
});
}
```
</issue_to_address>Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
| export function filterByCategory(gameList: Game[], category: string): Game[] { | ||
| return gameList.filter( | ||
| (game) => game.category.toLowerCase() === category.toLowerCase(), | ||
| ); | ||
| } |
There was a problem hiding this comment.
suggestion: Consider normalizing/cleaning the category input (e.g. trimming) before comparison.
Currently only case-insensitive differences are handled. If category has leading/trailing whitespace or similar minor formatting differences, the filter will return no matches. Normalizing once (e.g. const normalized = category.trim().toLowerCase();) and using that for comparison would make this more robust to common input variations.
| export function filterByCategory(gameList: Game[], category: string): Game[] { | |
| return gameList.filter( | |
| (game) => game.category.toLowerCase() === category.toLowerCase(), | |
| ); | |
| } | |
| export function filterByCategory(gameList: Game[], category: string): Game[] { | |
| const normalizedCategory = category.trim().toLowerCase(); | |
| return gameList.filter((game) => { | |
| const gameCategory = game.category?.trim().toLowerCase(); | |
| return gameCategory === normalizedCategory; | |
| }); | |
| } |
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Code Review SummaryStatus: No Issues Found | Recommendation: Merge OverviewThis PR adds CodSpeed benchmarking infrastructure to the project. The changes are:
Note on Existing CommentsThe existing inline comments appear to reference incorrect line numbers in some files (e.g., Files Reviewed (6 files)
Reviewed by laguna-m.1-20260312:free · 458,577 tokens |
Not up to standards ⛔🔴 Issues
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| Category | Results |
|---|---|
| Compatibility | 4 high |
| BestPractice | 11 medium 1 minor 2 high |
| Documentation | 4 minor |
| ErrorProne | 7 high |
| Security | 3 high |
| CodeStyle | 39 minor |
| Comprehensibility | 1 minor |
🟢 Metrics 32 complexity
Metric Results Complexity 32
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AI Code Review by LlamaPReview
🎯 TL;DR & Recommendation
Recommendation: Approve with suggestions
This PR sets up CodSpeed performance benchmarks and refactors game data into a shared module. No critical issues found; the changes are well-structured. Some minor improvements are suggested to enhance test completeness and maintainability.
📄 Documentation Diagram
This diagram illustrates the refactored game data flow from the new shared module and the added benchmark suite.
sequenceDiagram
participant HomePage as Home Page
participant GamesLib as lib/games.ts
participant Benchmark as benchmark suite
HomePage->>GamesLib: import { games }
Note over HomePage, GamesLib: PR #35;50: moved data from inline to lib
GamesLib-->>HomePage: games array
Benchmark->>GamesLib: bench(filterByCategory, searchGames, ...)
Note over Benchmark: PR #35;50: added vitest benchmarks with CodSpeed
🌟 Strengths
- Clean extraction of game utilities into a dedicated module improves code organization.
- Comprehensive benchmark suite covering 12 scenarios provides good baseline coverage.
| Priority | File | Category | Impact Summary (≤12 words) | Anchors |
|---|---|---|---|---|
| P2 | bench/games.bench.ts | Testing | Missing edge case benchmarks (no match, empty) | - |
| P2 | vitest.config.mts | Maintainability | Hardcoded alias duplicates tsconfig, may drift | - |
| P2 | app/page.tsx | Architecture | Benchmarked functions unused in production code | path:lib/games.ts |
💡 Have feedback? We'd love to hear it in our GitHub Discussions.
✨ This review was generated by LlamaPReview Advanced, which is free for all open-source projects. Learn more.
| describe("filterByCategory", () => { | ||
| bench("filter base games by category", () => { | ||
| filterByCategory(games, "Puzzle"); | ||
| }); |
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P2 | Confidence: Medium
Speculative: The benchmarks for filterByCategory and other functions cover only positive, matching scenarios. Missing benchmarks for edge cases such as filtering with a non‑existent category, searching with no results (already covered in searchGames), or handling an empty input array. Adding these would ensure that performance characteristics under non‑match and boundary conditions are tracked, preventing future regressions in those paths.
Code Suggestion:
bench("filter 1000 games with no match", () => {
filterByCategory(largeGameList, "NonExistentCategory");
});
bench("filter empty list", () => {
filterByCategory([], "Puzzle");
});| resolve: { | ||
| alias: { | ||
| "@": path.resolve(__dirname, "."), | ||
| }, | ||
| }, |
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P2 | Confidence: Medium
Speculative: The path alias @ is hardcoded in vitest.config.mts, duplicating the TypeScript path mapping typically defined in tsconfig.json. If the project’s alias configuration changes (e.g., to support a different base path), the Vitest configuration must be manually updated to stay in sync. This duplication can lead to subtle mismatches between development (TypeScript) and testing (Vitest) environments.
Code Suggestion:
import tsconfigPaths from "vite-tsconfig-paths";
export default defineConfig({
plugins: [codspeed(), tsconfigPaths()],
});
| category: "Puzzle", | ||
| }, | ||
| ]; | ||
| import { games } from "@/lib/games"; |
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P2 | Confidence: Low
Speculative: The extracted utility functions (filterByCategory, searchGames, sortByTitle, etc.) in lib/games.ts are thoroughly benchmarked but are not imported or used anywhere in the application code (the page only consumes the games array). This creates a gap between the code that is performance‑tested and the code that is actually executed in production. If these functions are intended for future use, consider adding a small integration example (e.g., a search bar) to validate real‑world behavior. If they are not planned for immediate use, the benchmarks are still valid for baseline tracking, but the mismatch should be acknowledged.
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Require new request due to latest version as conflicts |
1 participant
This PR sets up continuous performance testing with CodSpeed using vitest benchmarks in simulation mode.
What changed
Extracted game utilities (
lib/games.ts): Moved the games data and added utility functions (filterByCategory,searchGames,sortByTitle,getCategories,getGameById) into a dedicated module. The page component (app/page.tsx) now imports from this module instead of defining the data inline.Benchmark suite (
bench/games.bench.ts): 12 benchmarks covering all utility functions at two scales -- the base 6-game dataset and a generated 1000-game dataset -- to track how performance changes as data grows.Vitest + CodSpeed plugin (
vitest.config.mts): Configured vitest with@codspeed/vitest-pluginfor CodSpeed's CPU simulation instrument, which provides deterministic, low-variance measurements.CI workflow (
.github/workflows/codspeed.yml): Runs benchmarks on every push tomainand on pull requests usingCodSpeedHQ/action@v4with OIDC authentication. Supportsworkflow_dispatchfor CodSpeed backtesting.README badge: Added the CodSpeed performance badge.
Benchmarks included
filterByCategorysearchGamessortByTitlegetCategoriesgetGameByIdNext steps
main.Summary by Sourcery
Introduce shared game utilities and integrate CodSpeed-powered performance benchmarks into the project.
New Features:
Enhancements:
Build:
CI:
Documentation: