fix(tests,admin-cli): output of rack/switch show tests

[poroh]

Suppress print to stdout during test run in rack/switch admin cli tests, added assertions for these tests.

Related issues

N/A

Type of Change

• Add - New feature or capability
• Change - Changes in existing functionality
• Fix - Bug fixes
• Remove - Removed features or deprecated functionality
• Internal - Internal changes (refactoring, tests, docs, etc.)

Breaking Changes

• This PR contains breaking changes

Testing

• Unit tests added/updated
• Integration tests added/updated
• Manual testing performed
• No testing required (docs, internal refactor, etc.)

Additional Notes

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ℹ️ Recent review info

⚙️ Run configuration

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Run ID: 12708969-dd8e-434b-8d3e-7706dd24f993

📥 Commits

Reviewing files that changed from the base of the PR and between 58f5905 and 7a8da7d.

📒 Files selected for processing (2)

• crates/admin-cli/src/rack/show/cmd.rs
• crates/admin-cli/src/switch/show/cmd.rs

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Summary by CodeRabbit

• Bug Fixes
  • Improved reliability of rack details output across JSON, YAML, table, and CSV formats.
  • Rendering errors are now reported correctly instead of being silently ignored.
  • Ensured formatted output can be captured and validated consistently.
  • Improved switch details output validation for key information.

Walkthrough

The rack show command now writes all output formats through supplied writers and propagates rendering errors. Rack and switch formatting tests capture output and validate its contents.

Changes

CLI output rendering

Layer / File(s)	Summary
Rack writer-based rendering crates/admin-cli/src/rack/show/cmd.rs	Rack show functions now accept writers. JSON, YAML, table, and CSV output use the supplied writer and return rendering errors.
Captured output validation crates/admin-cli/src/rack/show/cmd.rs, crates/admin-cli/src/switch/show/cmd.rs	Tests capture rendered output and assert serialized data, table values, CSV headers, component identifiers, and switch detail fields.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to 7a8da

This change only adjusts rack and switch CLI tests to suppress unintended output and add assertions; no actionable merge-blocking risk remains beyond normal checks and review.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 12 functions across 2 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description check	✅ Passed	The description accurately states that the rack and switch admin CLI tests suppress stdout output and add assertions.
Title check	✅ Passed	The title clearly identifies the fix to rack and switch show test output and matches the main changeset.
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.

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[chatgpt-codex-connector]

Exercise the public rack command in the table test

Calling show_table directly and checking only prefixes through the Compute Trays column allows regressions in command dispatch, headers, and the Power Shelves/Switches cells to pass. Exercise the public rack show command and assert the rendered headers as well as populated and empty values for every column, as required for user-visible CLI table changes.

AGENTS.md reference: AGENTS.md:L147-L149

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