CoverBot: Added tests for cmd package error handling and config utilities

[tusk-dev]

This PR contains 50 unit tests across 3 test files.

CoverBot config: cmd files

File patterns: cmd/**

Why these files?

CoverBot's tests target three cmd package files with near-zero coverage: errors.go (0%), unit_get_run.go (6%), and config.go (6.1%). These files form the error-handling and configuration backbone of the 'unit get-run' workflow, with direct function calls between them. All three contain pure functions with clear branching logic—formatApiError, buildNextSteps, and parseBool—making them straightforward to test with table-driven cases. Coverage jumps to 97.6%, 100%, and 88% respectively, closing a significant gap in the lowest-coverage region of the codebase.

Reviewers

Tagged @jy-tan — authored the original feature and logic introducing cmd/errors.go, cmd/unit_get_run.go, and the error-formatting functions now covered by CoverBot's tests.

Files tested

• cmd/config.go
• cmd/errors.go
• cmd/unit_get_run.go

Avg +95% line coverage gain across 3 files

Source file	Line	Branch
cmd/config.go	98% (+98%)	—
cmd/errors.go	100% (+100%)	—
cmd/unit_get_run.go	88% (+88%)	—

Coverage is calculated by running tests directly associated with each source file, learn more here.

---

View test details on Tusk ↗

[cubic-dev-ai]

1 issue found across 3 files

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="cmd/unit_get_run_test.go">

<violation number="1" location="cmd/unit_get_run_test.go:12">
P2: This test is non-deterministic because it depends on external auth/config state; it can fail on environments that already have valid credentials.</violation>
</file>

_{Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review, or fix all with cubic.}

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 825d468. Configure here.}

[cubic-dev-ai]

1 issue found across 1 file (changes from recent commits).

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="cmd/config_test.go">

<violation number="1" location="cmd/config_test.go:83">
P2: This negative prefix assertion is brittle and can fail on environments where `t.TempDir()` is located under the original HOME path.</violation>
</file>

_{Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review, or fix all with cubic.}