Unskip more bundler tests

[Jarred-Sumner]

What does this PR do?

How did you verify your code works?

Summary by CodeRabbit

• Tests
  • Enabled multiple previously skipped bundler and esbuild test cases by removing todo flags, increasing test suite coverage.
  • Broadened cross-platform applicability by removing OS-specific gating in certain tests, ensuring they run consistently across environments.
  • Activated additional scenarios around resolve/load behavior, dead code elimination, package.json handling, and extra edge cases.
  • No impact on runtime behavior or public APIs; changes are limited to test execution and reliability.

[coderabbitai]

Walkthrough

Removed todo flags and OS-specific gating in several test suites to enable previously skipped tests across bundler and esbuild test files. Adjusted imports to remove platform gating where present. No production code or public API changes.

Changes

Cohort / File(s)	Summary of Changes
Bundler Plugin tests test/bundler/bundler_plugin.test.ts	Removed multiple todo: true markers to activate five plugin-related tests.
Esbuild DCE tests test/bundler/esbuild/dce.test.ts	Enabled one DCE test by removing todo: true.
Esbuild default tests and gating test/bundler/esbuild/default.test.ts	Dropped OS-specific gating imports; enabled several tests by removing todo: true; removed platform gating for require shim tests.
Esbuild extra tests test/bundler/esbuild/extra.test.ts	Enabled two tests by removing todo: true and a comment implying browser require absence.
Esbuild package.json self-import tests test/bundler/esbuild/packagejson.test.ts	Enabled four self-import tests by removing todo: true.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

A rabbit thumps the test bench floor,
“Wake up, specs!”—we skip no more.
Flags undone, the suites all run,
Cross OS paths now join as one.
With whiskers twitching, green lights glow—
Hop, hop, hop, the passes flow! 🐇✨

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📥 Commits

Reviewing files that changed from the base of the PR and between 684f7ec and 95fc4ec.

📒 Files selected for processing (5)

• test/bundler/bundler_plugin.test.ts (0 hunks)
• test/bundler/esbuild/dce.test.ts (0 hunks)
• test/bundler/esbuild/default.test.ts (1 hunks)
• test/bundler/esbuild/extra.test.ts (0 hunks)
• test/bundler/esbuild/packagejson.test.ts (0 hunks)

💤 Files with no reviewable changes (4)

• test/bundler/esbuild/packagejson.test.ts
• test/bundler/esbuild/dce.test.ts
• test/bundler/esbuild/extra.test.ts
• test/bundler/bundler_plugin.test.ts

🔇 Additional comments (1)

test/bundler/esbuild/default.test.ts (1)

3-3: Verified harness exports osSlashes
test/harness.ts defines and exports osSlashes, and there are no remaining isMacOS or isMusl references in default.test.ts.

✨ Finishing Touches

• 📝 Generate Docstrings

🧪 Generate unit tests

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch jarred/unskip-more

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[robobun]

^{Updated 5:50 PM PT - Aug 29th, 2025}

❌ @autofix-ci[bot], your commit 95fc4ec has 2 failures in Build #24285:

• test/integration/mysql2/mysql2.test.ts - timeout on 🍎 13 aarch64
• test/cli/inspect/BunFrontendDevServer.test.ts - 1 failing on 🍎 14 aarch64

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🧪   To try this PR locally:

bunx bun-pr 22244

That installs a local version of the PR into your bun-22244 executable, so you can run:

bun-22244 --bun