Move test files from src/test/ to tests/ directory

[DeFiVC]

What

Test files are located in src/test/ instead of the tests/ directory, mixing test code with source code.

Why

• Test files in src/ may be included in production builds
• Violates the project convention where tests are in tests/ (as documented in AGENTS.md)
• Makes it harder to distinguish test code from production code

Scope

Move test files from src/test/ to tests/unit/ and update imports.

Files to move:

• src/test/cache.test.ts
• src/test/course-cache-and-progress.test.ts
• src/test/quiz-grading-and-warming.test.ts

Acceptance Criteria

• No test files remain in src/test/
• Moved test files are in tests/unit/
• All tests pass (npm test)
• tsconfig.json exclude includes tests (already configured)

Technical Context

• Source: src/test/*.test.ts
• Destination: tests/unit/
• Config: tsconfig.json line 23: exclude: [node_modules, dist, tests]
• Test runner: Vitest (configured in package.json)

[fj555]

@fj555 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hey Maintainer, I would love to resolve this issue. kindly assign me. Thanks

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[badmusdare4]

@badmusdare4 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi Team, allow me handle this issue. ETA 2 hours

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[starboytiimz]

@starboytiimz has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

🟢🟢🟢Hi maintainer can i be assigned this issue please?

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[Cyber-Mitch]

@Cyber-Mitch has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I want to work on this issue. I'd love to be assigned to it

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[drips-wave]

Congratulations, @Cyber-Mitch! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @Cyber-Mitch: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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