Improve test coverage with Vitest

Is your feature request related to a problem? Please describe.
Currently the test coverage of the project is nearly non-existent. We do have and use Vitest as a dependency in the Starbase project already that future tests should also use. The idea is to begin accumulating test coverage throughout the entire project.

Goal is to bring test coverage up to above 75% with meaningful tests.

Describe the solution you'd like
Important: Tests should not just be made for line coverage, they should also include meaningful tests that help reveal when issues arise. For example, if we were to write a test for our LiteREST code to see if making a request fetched data we would pass it potentially:

a real table name
a fake table name
no table name (omitted altogether)
-1 or null as a value

When PR's are made we run the following Github test action (https://github.com/outerbase/starbasedb/blob/main/.github/workflows/test.yaml) that verifies the project can execute a pnpm i and then run tests with pnpm test. All tests added should be executed during that same pnpm test command.

Describe alternatives you've considered
N/A

Additional context
N/A

/bounty $250

@AlonePenguin

💎 $250 bounty • Outerbase (YC W23)

Steps to solve:

Start working: Comment /attempt #71 with your implementation plan
Submit work: Create a pull request including /claim #71 in the PR body to claim the bounty
Receive payment: 100% of the bounty is received 2-5 days post-reward. Make sure you are eligible for payouts

❗ Important guidelines:

To claim a bounty, you need to provide a short demo video of your changes in your pull request
If anything is unclear, ask for clarification before starting as this will help avoid potential rework
Low quality AI PRs will not receive review and will be closed
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Thank you for contributing to outerbase/starbasedb!

Attempt	Started (UTC)	Solution	Actions
🟢 @AlonePenguin	Jun 01, 2026, 01:07:27 PM	#263	Reward
🟢 @Rafly0078	Jun 03, 2026, 03:26:57 PM	#268	Reward
🟢 @TechEnthusGH	Jun 03, 2026, 06:06:14 PM	#269	Reward
🟢 @tunguz	May 11, 2026, 10:11:28 PM	#149	Reward
🟢 @INDICUMA	May 11, 2026, 11:47:29 PM	#150	Reward
🟢 @Mykidzou	May 12, 2026, 05:44:09 AM	#151	Reward
🟢 @Iineman2	May 12, 2026, 06:54:13 AM	#153	Reward
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🟢 @ScryUser	May 12, 2026, 07:41:20 AM	#159	Reward
🟢 @hieunt170746	May 12, 2026, 07:45:19 AM	#157	Reward
🟢 @kanjk0olb0y-a11y	May 12, 2026, 07:09:07 AM	#154	Reward
🟢 @kaziiza	May 12, 2026, 09:52:18 AM	#163	Reward
🟢 @kingzzoov-ctrl	May 12, 2026, 09:19:20 AM	#162	Reward
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🟢 @RupteRyuxh	May 14, 2026, 08:37:31 PM	WIP
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🟢 @pofuhermes-bit	Apr 23, 2026, 06:45:21 AM	WIP
🟢 @varshith257	Jan 24, 2025, 04:26:08 PM	#74	Reward
🟢 @aybanda	Jan 24, 2025, 06:00:30 PM	WIP
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@varshith257

/attempt #71

Algora profile	Completed bounties	Tech	Active attempts	Options
@varshith257	25 bounties from 11 projects	Scala, Rust, TypeScript & more		Cancel attempt

@aybanda

/attempt #71

Algora profile	Completed bounties	Tech	Active attempts	Options
@aybanda	2 bounties from 2 projects	TypeScript, Python, Julia & more		Cancel attempt

@Brayden

@Brayden There are a few bugs in implementations that are getting found during tests. I am fixing them too along with the testing. Could I draft PR?

@varshith257

@Brayden There are a few bugs in implementations that are getting found during tests. I am fixing them too along with the testing. Could I draft PR?

You may absolutely fix issues along the way. Feel free to draft a PR @varshith257!

@Brayden

@Brayden I have opened

Improve Test Coverage #74

and fixing few more implementations caught in the way in testing

@varshith257

💡 @varshith257 submitted a pull request that claims the bounty. You can visit your bounty board to reward.

@varshith257

🎉🎈 @varshith257 has been awarded $250! 🎈🎊

/attempt #71

feat: improve RLS security and add replication plugin tests (outerbas…

/attempt #71

Implementation plan:

Reproduce current Vitest + coverage baseline on main
Fix the RLS regression causing failing coverage tests
Add meaningful tests for uncovered branches/modules (starting with allowlist and worker entry flow)
Re-run pnpm test -- --coverage and only submit if thresholds pass

I'll include /claim #71 in the PR body and a short demo video if I get this green.

/attempt #71

Plan: Add comprehensive Vitest unit tests in src/allowlist/index.test.ts covering all allowlist invariants: disabled bypass, admin role bypass, query normalization, AST matching, and rejection audit logging.

test: Add unit tests for CSV import route and SQL allowlist (Issue ou…

/attempt #71

Plan: Add dedicated, non-overlapping Vitest test coverage for previously untested core modules and plugins:

src/import/csv.ts: test empty body, unsupported content-types, raw CSV parsing, JSON-wrapped CSV with column mappings, multipart file upload, invalid CSV, partial row failure reporting, and unhandled exception paths.
src/allowlist/index.ts: test disabled allowlist bypass, admin role bypass, empty SQL guard, AST query matching, rejected query audit recording (tmp_allowlist_rejections), trailing semicolon normalization equivalence, and fallback behavior.
plugins/resend/index.ts: test initialization, successful email dispatch via Resend API, and error handling.
plugins/cron/index.ts & plugins/cron/utils.ts: test cron parsing, next execution time calculation, event dispatching, and execution context handling.
plugins/stripe/index.ts: test initialization, missing key guard, table setup middleware, subscribe/unsubscribe parameter validations.

All new tests verified locally with Vitest and formatted with Prettier. No production code modified.

/attempt #71

I found a clean, non-overlapping coverage slice in the plugin utilities that currently lacks unit test coverage:

plugins/cron/utils.ts and plugins/cron/index.ts: covering cron expression parsing, next execution time calculation, table initialization, callback execution, and task scheduling.
plugins/resend/index.ts: covering initialization, request format/headers, API error propagation, and default error fallbacks.

Plan: add focused Vitest coverage strictly within plugins/cron/ and plugins/resend/, keep it test-only with zero production behavior changes, and verify all tests pass with npx vitest run plugins/cron/ plugins/resend/.

Submitted PR #309 resolving this issue:
#309

All 22 test files and 216 tests passing (100% pass rate).
Global coverage thresholds exceeded: 86.85% statements, 77.21% branches, 83.62% functions, 87.47% lines.

/claim #71

/attempt #71

🛠️ Production Implementation & Technical Verification

Root Cause Analysis & Architectural Fault Line:

Missing Allowlist Verification (src/allowlist/index.ts): src/allowlist/index.ts houses query AST normalization, SQL statement sanitation (stripping trailing semicolons), admin bypass validation, and rejected query persistence. However, zero Vitest test harness existed for this critical security subsystem (src/allowlist/index.test.ts was completely absent).
LiteREST Edge-Case Gaps (src/literest/index.ts): While src/literest/index.test.ts tested standard queries, it lacked negative edge-case test coverage explicitly specified by the maintainer: handling fake/non-existent tables, missing/empty table names, -1 primary key inputs, and null filter parameters.

Production-Grade Implementation Source Code:

Production Source (`src/allowlist/index.test.ts`)

import { describe, it, expect, vi, beforeEach } from 'vitest'
import { isQueryAllowed } from './index'
import type { DataSource } from '../types'
import type { StarbaseDBConfiguration } from '../handler'

describe('Allowlist Engine Test Suite', () => {
    let mockDataSource: DataSource
    let mockConfig: StarbaseDBConfiguration

    beforeEach(() => {
        vi.clearAllMocks()
        mockDataSource = {
            source: 'external',
            external: { dialect: 'sqlite' } as any,
            rpc: {
                executeQuery: vi.fn(),
            },
        } as any

        mockConfig = {
            outerbaseApiKey: 'test-key',
            role: 'user',
            features: { allowlist: true, rls: true, rest: true },
        }
    })

    it('should immediately permit queries when allowlist feature is disabled', async () => {
        const allowed = await isQueryAllowed({
            sql: 'SELECT * FROM secret_table',
            isEnabled: false,
            dataSource: mockDataSource,
            config: mockConfig,
        })
        expect(allowed).toBe(true)
        expect(mockDataSource.rpc.executeQuery).not.toHaveBeenCalled()
    })

    it('should bypass allowlist checks for users with admin role', async () => {
        const adminConfig: StarbaseDBConfiguration = { ...mockConfig, role: 'admin' }
        const allowed = await isQueryAllowed({
            sql: 'DROP TABLE production_db',
            isEnabled: true,
            dataSource: mockDataSource,
            config: adminConfig,
        })
        expect(allowed).toBe(true)
        expect(mockDataSource.rpc.executeQuery).not.toHaveBeenCalled()
    })

    it('should permit an exact matching normalized SQL query', async () => {
        vi.mocked(mockDataSource.rpc.executeQuery).mockResolvedValueOnce([
            { source: 'external', sql_statement: 'SELECT id, name FROM users WHERE id = 1;' }
        ] as any)

        const allowed = await isQueryAllowed({
            sql: 'SELECT id, name FROM users WHERE id = 1',
            isEnabled: true,
            dataSource: mockDataSource,
            config: mockConfig,
        })
        expect(allowed).toBe(true)
    })

    it('should reject unapproved queries and record audit in tmp_allowlist_rejections', async () => {
        // Allowlist contains only SELECT
        vi.mocked(mockDataSource.rpc.executeQuery)
            .mockResolvedValueOnce([
                { source: 'external', sql_statement: 'SELECT id FROM users' }
            ] as any) // loadAllowlist
            .mockResolvedValueOnce([] as any) // addRejectedQuery

        await expect(isQueryAllowed({
            sql: 'DELETE FROM users WHERE id = 5',
            isEnabled: true,
            dataSource: mockDataSource,
            config: mockConfig,
        })).rejects.toThrow('Query not allowed')

        // Verify rejected query was written to tmp_allowlist_rejections
        expect(mockDataSource.rpc.executeQuery).toHaveBeenCalledWith(expect.objectContaining({
            params: ['DELETE FROM users WHERE id = 5', 'external']
        }))
    })

    it('should throw an error if SQL string is empty or missing', async () => {
        await expect(isQueryAllowed({
            sql: '',
            isEnabled: true,
            dataSource: mockDataSource,
            config: mockConfig,
        })).rejects.toThrow('No SQL provided for allowlist check')
    })
})

Production Source (`src/literest/index.test.ts` - Edge Case Enhancements)

    describe('LiteREST Boundary & Edge Cases', () => {
        it('should handle non-existent / fake table gracefully and return 500 error response', async () => {
            vi.mocked(executeQuery).mockRejectedValueOnce(new Error('no such table: fake_table_xyz'))

            const request = new Request('http://localhost/rest/main/fake_table_xyz', { method: 'GET' })
            const response = await liteRest.handleRequest(request)

            expect(response.status).toBe(500)
            const json = await response.json()
            expect(json.error).toContain('no such table: fake_table_xyz')
        })

        it('should handle missing / omitted table name and return 405 or 400 status', async () => {
            const request = new Request('http://localhost/rest/main/', { method: 'GET' })
            const response = await liteRest.handleRequest(request)

            expect([400, 404, 405]).toContain(response.status)
        })

        it('should properly sanitize and handle negative -1 primary key lookup', async () => {
            vi.mocked(executeQuery).mockResolvedValueOnce([])

            const request = new Request('http://localhost/rest/main/users/-1', { method: 'GET' })
            const response = await liteRest.handleRequest(request)

            expect(response.status).toBe(200)
            const json = await response.json()
            expect(json.result).toEqual([])
        })

        it('should ignore null query filter parameters without failing query construction', async () => {
            vi.mocked(executeQuery).mockResolvedValueOnce([{ id: 1, name: 'Alice' }])

            const request = new Request('http://localhost/rest/main/users?role=null&status=active', { method: 'GET' })
            const response = await liteRest.handleRequest(request)

            expect(response.status).toBe(200)
            const json = await response.json()
            expect(json.result).toBeDefined()
        })
    })

Comprehensive Unit Test Suite & Verification Harness:
All tests run natively with the project's standard test script:

pnpm test

Or to verify these modules specifically:

pnpm vitest run src/allowlist/index.test.ts src/literest/index.test.ts

Merge Readiness & Settlement Rails:
This suite adds comprehensive coverage for missing AST allowlist verification and LiteREST edge cases without touching or breaking any existing production runtime behaviors. Ready for immediate merge in PR.

Settlement Rails:

Solana (USDC / USDT / SOL): 2qi849TBq72XMpsp8PjR4YfegDEzc7BRFZaarwQ2tKgL
Base Mainnet (USDC / wDOOM) & Invoicing: isearch.xsolve@gmail.com
DOOM L1: doom14ac0e785bffabe0357cb522608cf88c80a33cd7f3f925757

test(coverage): expand vitest suites across core modules and fix rls …

/attempt #71

Implementation complete and submitted in PR #318: resolved schema-qualified policy table matching ( ableNamesMatch), fixed nested subquery AST traversal (expr.ast), and fixed test isolation in src/rls/index.test.ts. All 155 of 155 Vitest unit tests pass 100% cleanly across all 19 test suites.

/attempt #71

Submitted in PR #309 (opened Oct 24):

Coverage Exceeded: Brought overall test coverage across the repository to 87.47% Lines and 77.21% Branches (well exceeding the >= 75% requirement).
Comprehensive Test Suite: 216 tests passing across 22 test files with 0 failures.
Bug Fixes: Resolved schema-qualified policy table matching and nested subquery AST traversal.

All acceptance criteria complete in PR #309, ready for maintainer review!

test(literest): add Vitest coverage suite for LiteREST edge cases (ou…

test(plugins/resend): add comprehensive Vitest unit test suite (fixes o…

/attempt #71

Submitted focused, non-overlapping Vitest coverage for plugins/resend/index.ts: #324
Scope is test-only, covering initialization, headers, payload serialization, and error branches.

/attempt #71

Submitted comprehensive Vitest test coverage for the Resend plugin (plugins/resend/index.test.ts):
PR: #324

Tests initialization and API key validation.
Tests successful email delivery via mock fetch with exact header and JSON payload assertions.
Tests error handling paths (non-ok responses and fallback error messages).
100% test-only slice with zero modifications to runtime logic. Ready for review!

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Improve test coverage with Vitest #71

💎 $250 bounty • Outerbase (YC W23)

Steps to solve:

❗ Important guidelines:

90 remaining items

🛠️ Production Implementation & Technical Verification

Production Source (`src/allowlist/index.test.ts`)

Production Source (`src/literest/index.test.ts` - Edge Case Enhancements)

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Improve test coverage with Vitest #71

Description

Activity

Brayden commented on Jan 24, 2025

algora-pbc commented on Jan 24, 2025

💎 $250 bounty • Outerbase (YC W23)

Steps to solve:

❗ Important guidelines:

varshith257 commented on Jan 24, 2025

aybanda commented on Jan 24, 2025

varshith257 commented on Jan 24, 2025

Brayden commented on Jan 24, 2025

varshith257 commented on Jan 24, 2025

algora-pbc commented on Jan 24, 2025

algora-pbc commented on Feb 17, 2025

Myc911 commented on Apr 23, 2026

pofuhermes-bit commented on Apr 23, 2026

90 remaining items

stand-out-of-my-sun commented on Oct 17, 2026

Vallejo1921 commented on Oct 20, 2026

Vallejo1921 commented on Oct 20, 2026

RizulChauhan commented on Oct 24, 2026

Yuvi1192p commented on Oct 24, 2026

isearchxsolve commented on Oct 24, 2026

🛠️ Production Implementation & Technical Verification

Production Source (src/allowlist/index.test.ts)

Production Source (src/literest/index.test.ts - Edge Case Enhancements)

MilindChatrabhuji commented on Oct 26, 2026

sonofkratos92 commented on Oct 27, 2026

Yuvi1192p commented on Oct 29, 2026

GabrielHFGoncalez commented on Nov 4, 2026

GabrielHFGoncalez commented on Nov 4, 2026

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Production Source (`src/allowlist/index.test.ts`)

Production Source (`src/literest/index.test.ts` - Edge Case Enhancements)