test: fix baseline test build

[starSumi]

Summary

• fix test-only imports needed by existing history and code execution tests
• re-export flowchart parser helpers under #[cfg(test)] and align the back-edge test import
• add a test-only Task::to_markdown() helper for existing productivity panel tests

Validation

• git diff --check
• cargo check --locked --quiet
• cargo test --locked test_task_to_markdown -- --nocapture
• cargo test --locked test_new_history -- --nocapture
• cargo test --locked test_simple_undo -- --nocapture
• cargo test --locked classify_normalizes_case -- --nocapture
• cargo test --locked status_glyphs -- --nocapture
• cargo test --locked test_parse_direction -- --nocapture
• cargo test --locked fc_83a_inner_e_to_b_goes_up_first -- --nocapture

Notes

• cargo fmt --all -- --check currently fails on pre-existing repository-wide formatting debt outside this patch, including trailing whitespace in src/editor/widget.rs.
• This PR intentionally stays separate from PR style: refine outline tree rendering #151 because the CI failures are unrelated to the outline tree work.

Summary by CodeRabbit

• Tests
  • Reorganized test-only imports and utilities across multiple modules using conditional compilation, including helper re-exports and icon/constants availability for test glyph rendering.
  • Adjusted test setup for flowchart edge rectangle construction by using the shared expand_rect utility.
  • Enhanced productivity panel coverage with a test-only Task → markdown checkbox formatter to validate unchecked, checked, and priority-based output.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: a6fc3f76-2f8d-492c-83ba-173c5581f846

📥 Commits

Reviewing files that changed from the base of the PR and between 6d64c0c and 07c1373.

📒 Files selected for processing (1)

• src/ui/productivity_panel.rs

🚧 Files skipped from review as they are similar to previous changes (1)

• src/ui/productivity_panel.rs

---

📝 Walkthrough

Walkthrough

Five small test-only additions: #[cfg(test)]-gated imports are added to history.rs, code_execution.rs, flowchart/mod.rs, and edges.rs to resolve symbols used in existing test code. A Task::to_markdown method is added to productivity_panel.rs, also #[cfg(test)], converting task state to markdown checkbox syntax.

Changes

Test compilation fixes and Task::to_markdown

Layer / File(s)	Summary
cfg(test) imports and re-exports src/editor/ferrite/history.rs, src/markdown/code_execution.rs, src/markdown/mermaid/flowchart/mod.rs, src/markdown/mermaid/flowchart/render/edges.rs	Adds #[cfg(test)]-gated imports of TextBuffer, CHECK/X icons, flowchart parser helpers (parse_direction, parse_edge_line_full, parse_node_from_text), and expand_rect so test-only code in each module compiles.
Task::to_markdown test-only method src/ui/productivity_panel.rs	Adds Task::to_markdown(&self) -> String under #[cfg(test)] that produces - [ ]/- [x] checkbox text with ! /!! priority prefixes from the task's completed and priority fields.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐇 A sprinkle of #[cfg(test)] here,
A method for markdown, oh what cheer!
- [x] for done, - [ ] for not,
Priority bangs — the rabbit's got a lot!
Tests compile clean, the warren is bright ✨

🚥 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 PR title 'test: fix baseline test build' accurately summarizes the main purpose of the changeset, which is to fix test-only imports and infrastructure to resolve baseline test build compilation failures.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
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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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@src/ui/productivity_panel.rs`:
- Around line 88-98: The format string in the to_markdown method has a literal
space between the checkbox and priority placeholder, which creates a
double-space when priority is empty. Fix this by modifying the format string and
priority handling so that a space only appears before the priority when the
priority string is not empty. One approach is to conditionally build the
priority string with a leading space only when priority is not an empty string,
or restructure the format arguments to eliminate the extra space.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 8ddcdab4-c159-46b3-a081-f134364808a1

📥 Commits

Reviewing files that changed from the base of the PR and between 3ba085c and 6d64c0c.

📒 Files selected for processing (5)

• src/editor/ferrite/history.rs
• src/markdown/code_execution.rs
• src/markdown/mermaid/flowchart/mod.rs
• src/markdown/mermaid/flowchart/render/edges.rs
• src/ui/productivity_panel.rs

[starSumi]

Fresh CI follow-up from local triage:

• Both CI / Test jobs are red after this PR fixes the earlier test-compilation blockers.
• The current failing tests are outside this PR's touched files.
• Linux failures:
  • markdown::mermaid::tests::test_subgraph_title_width_expansion
  • markdown::video_embed::tests::document_parses_bare_youtube_url_paragraph
  • state::tests::test_recovery_identity_original_bleeding_repro_rejected
  • state::tests::test_recovery_identity_path_mismatch_rejected
• Windows reports the same four plus:
  • vcs::git::tests::test_git_service_untracked_file

Local follow-up on this branch still shows the touched-file validation passing:

• cargo check --locked --quiet
• cargo test --locked test_task_to_markdown -- --nocapture
• cargo test --locked test_new_history -- --nocapture
• cargo test --locked test_simple_undo -- --nocapture
• cargo test --locked classify_normalizes_case -- --nocapture
• cargo test --locked status_glyphs -- --nocapture
• cargo test --locked test_parse_direction -- --nocapture
• cargo test --locked fc_83a_inner_e_to_b_goes_up_first -- --nocapture

I am keeping #152 narrow rather than mixing these unrelated runtime baseline failures into it. If full green CI is required for merge, the next step should be one or more follow-up baseline PRs for the runtime failures above.

[OlaProeis]

Thank you @Star-sumi — merged into \