test: add coverage for StorageColumn optional fields and from()

[EmaToplek]

Summary

Adds test coverage for StorageColumn's optional fields (noCheck, typeParams, typeRef) and the static from() factory's pass-through vs. construct branches, in packages/2-sql/1-core/contract/src/ir/storage-column.ts.

• storage-column.ts: 100% statements/branches/functions/lines (up from 85%/81%/100%/100%)

Related to the M9 target-extensible-IR coverage gap noted in coverage.config.json (TML-2521).

Summary by CodeRabbit

• Tests
  • Expanded automated coverage for storage column configuration, including optional validation, type parameter, and type reference settings.
  • Added coverage confirming omitted optional values remain unset.
  • Added verification that storage columns can be created from plain input and that existing instances are preserved when passed through the conversion utility.
  • Existing tests for collection handling, round-tripping, and validation remain covered.

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository: prisma/orm/.coderabbit.yml

Review profile: CHILL

Plan: Advanced

Run ID: 21d98dbd-ce18-47fd-acbc-ed32bec4ace7

📥 Commits

Reviewing files that changed from the base of the PR and between ad23f6f and 319d0c4.

📒 Files selected for processing (1)

• packages/2-sql/1-core/contract/test/storage-column-many.test.ts

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📝 Walkthrough

Walkthrough

The test file adds coverage for optional StorageColumn fields and the static StorageColumn.from constructor. Existing tests remain unchanged.

Changes

StorageColumn contract tests

Layer / File(s)	Summary
Optional fields and from construction tests packages/2-sql/1-core/contract/test/storage-column-many.test.ts	Tests verify that noCheck, typeParams, and typeRef are set when provided and undefined when omitted. Tests also verify construction from plain input and pass-through of existing instances.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~5 minutes

Change: Other

Suggested reviewers: wmadden-electric

Merge Risk: ⚪ Minimal · up to 319d0

This test-only change introduces no identified production or deployment risk and is mergeable.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the added test coverage for StorageColumn optional fields and the from() factory.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create a new PR

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