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Coverage Priority Map Testing Review Non React

docs/plans/2026-03-24-coverage-priority-map-testing-review-non-react.md

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Coverage Priority Map Testing Review Non React

Inputs

  • Coverage source: lcov.info
  • Constraint: temporary non-React review
  • Scope: packages/**/src/** only
  • Goal: regression confidence for breaking changes, not vanity coverage

Coverage Run

  • Command: bun test --coverage --coverage-reporter=lcov --coverage-dir=.coverage-repo-2026-03-24h --reporter=dots
  • Result: Fresh coverage: 2869 pass, 0 fail, 575 files, 2.97s.

Suite Health

  • pnpm test:profile -- --top 25
  • pnpm test:slowest -- --top 25
  • Fast lane is clean. Nothing is close to the 75ms/test or 150ms/file thresholds.
  • The hottest current files are mostly React or already-known table/list integration-heavy specs. That is not a reason to expand the slow lane.
  • No skipped-test debt, commented-out spec debt, or cross-spec imports turned up in the current scans.

Scoring Rules

  • Exclude /react, obvious React surfaces outside /react, hook files, test files, barrels, declaration files, obvious type-only files, generated junk, and zero-value crumbs.
  • Exclude very thin plugin wrappers. They look uncovered and still usually are not worth the time.
  • Reward deterministic transforms, queries, merge helpers, parser or serializer seams, plugin resolution, meaningful plugin contracts, overrides, and bounded utilities with real uncovered behavior.
  • Penalize DOM-heavy leftovers, giant low-ROI files, and wrapper dust so fake hotspots do not crowd out real contracts.
  • package_score is the sum of the top 5 remaining file scores in that package, not every leftover crumb.

Strong Take

Do not do another package sweep.

The strict next batch is the raw score >= 6 set:

  1. list-classic: BaseTodoListPlugin.ts — score 8
  2. core: pluginDeserializeHtml.ts — score 7
  3. markdown: deserializeMd.ts — score 7
  4. suggestion: deleteSuggestion.ts — score 7
  5. table: deleteColumn.ts — score 7
  6. suggestion: rejectSuggestion.ts — score 7
  7. table: insertTableColumn.ts — score 7
  8. table: insertTableRow.ts — score 7
  9. suggestion: BaseSuggestionPlugin.ts — score 6
  10. table: BaseTablePlugin.ts — score 6
  11. list: withList.ts — score 6
  12. core: withMergeRules.ts — score 6

The wider but still defensible batch is the raw score >= 5 set:

  1. list-classic: BaseTodoListPlugin.ts — score 8
  2. core: pluginDeserializeHtml.ts — score 7
  3. markdown: deserializeMd.ts — score 7
  4. suggestion: deleteSuggestion.ts — score 7
  5. table: deleteColumn.ts — score 7
  6. suggestion: rejectSuggestion.ts — score 7
  7. table: insertTableColumn.ts — score 7
  8. table: insertTableRow.ts — score 7
  9. suggestion: BaseSuggestionPlugin.ts — score 6
  10. table: BaseTablePlugin.ts — score 6
  11. list: withList.ts — score 6
  12. core: withMergeRules.ts — score 6
  13. dnd: onDropNode.ts — score 6
  14. core: htmlElementToLeaf.ts — score 6
  15. basic-styles: BaseTextAlignPlugin.ts — score 6
  16. core: resolvePlugin.ts — score 6
  17. table: withInsertFragmentTable.ts — score 6
  18. table: withNormalizeTable.ts — score 6

Threshold Counts

  • score >= 7: 8 files
  • score >= 6: 29 files
  • score >= 5: 83 files
  • score >= 4: 115 files
  • score >= 3: 139 files
  • score >= 2: 146 files
  • score >= 1: 155 files

Packages By Value

  1. table — package score 33, top files deleteColumn.ts:7; insertTableColumn.ts:7; insertTableRow.ts:7; BaseTablePlugin.ts:6; withInsertFragmentTable.ts:6
  2. core — package score 31, top files pluginDeserializeHtml.ts:7; withMergeRules.ts:6; htmlElementToLeaf.ts:6; resolvePlugin.ts:6; cleanHtmlFontElements.ts:6
  3. list-classic — package score 30, top files BaseTodoListPlugin.ts:8; insertTodoListItem.ts:6; unwrapList.ts:6; withInsertFragmentList.ts:5; withList.ts:5
  4. suggestion — package score 30, top files deleteSuggestion.ts:7; rejectSuggestion.ts:7; BaseSuggestionPlugin.ts:6; acceptSuggestion.ts:5; removeMarkSuggestion.ts:5
  5. markdown — package score 29, top files deserializeMd.ts:7; customMdxDeserialize.ts:6; deserializeInlineMd.ts:6; convertNodesSerialize.ts:5; splitIncompleteMdx.ts:5
  6. code-block — package score 21, top files insertCodeBlock.ts:6; BaseCodeBlockPlugin.ts:5; htmlDeserializerCodeBlock.ts:5; withCodeBlock.ts:3; formatter.ts:2
  7. basic-nodes — package score 20, top files BaseCodePlugin.ts:4; BaseHeadingPlugin.ts:4; BaseBoldPlugin.ts:4; BaseItalicPlugin.ts:4; BaseStrikethroughPlugin.ts:4
  8. slate — package score 19, top files deleteText.ts:5; mergeNodes.ts:5; hasEditableTarget.ts:3; hasSelectableTarget.ts:3; hasTarget.ts:3
  9. docx — package score 19, top files docxListToList.ts:4; cleanDocxListElementsToList.ts:4; getVShapeSpid.ts:4; getRtfImageHex.ts:4; cleanDocxImageElements.ts:3
  10. list — package score 16, top files withList.ts:6; toggleList.ts:5; getSiblingList.ts:5
  11. dnd — package score 14, top files onDropNode.ts:6; getHoverDirection.ts:4; getNewDirection.ts:4
  12. media — package score 13, top files insertImageFromFiles.ts:5; BaseImagePlugin.ts:4; withImageUpload.ts:4

Best Files By Value

  1. list-classic — BaseTodoListPlugin.ts — score 8, coverage 37.1%, uncovered 22
  2. core — pluginDeserializeHtml.ts — score 7, coverage 88.8%, uncovered 18
  3. markdown — deserializeMd.ts — score 7, coverage 79.2%, uncovered 15
  4. suggestion — deleteSuggestion.ts — score 7, coverage 93.6%, uncovered 10
  5. table — deleteColumn.ts — score 7, coverage 93.4%, uncovered 9
  6. suggestion — rejectSuggestion.ts — score 7, coverage 94.0%, uncovered 8
  7. table — insertTableColumn.ts — score 7, coverage 94.3%, uncovered 8
  8. table — insertTableRow.ts — score 7, coverage 93.9%, uncovered 8
  9. suggestion — BaseSuggestionPlugin.ts — score 6, coverage 68.5%, uncovered 28
  10. table — BaseTablePlugin.ts — score 6, coverage 85.6%, uncovered 26
  11. list — withList.ts — score 6, coverage 78.3%, uncovered 25
  12. core — withMergeRules.ts — score 6, coverage 87.7%, uncovered 14
  13. dnd — onDropNode.ts — score 6, coverage 87.5%, uncovered 14
  14. core — htmlElementToLeaf.ts — score 6, coverage 69.4%, uncovered 11
  15. basic-styles — BaseTextAlignPlugin.ts — score 6, coverage 72.2%, uncovered 10
  16. core — resolvePlugin.ts — score 6, coverage 88.1%, uncovered 8
  17. table — withInsertFragmentTable.ts — score 6, coverage 93.2%, uncovered 8
  18. table — withNormalizeTable.ts — score 6, coverage 92.7%, uncovered 8
  19. link — upsertLink.ts — score 6, coverage 93.9%, uncovered 6
  20. markdown — customMdxDeserialize.ts — score 6, coverage 91.4%, uncovered 5

Stop Condition

Stop when the remaining misses are mostly wrappers, DOM/provider dust, giant sludge, or tiny crumbs. At that point coverage stops paying rent and the next move is architecture-safety work.

Caveats

  • Package totals are noisier than file ranking. Trust the file order first.
  • This map intentionally excludes React surfaces for this pass only. It is a temporary constraint, not a forever rule.
  • A few DOM-ish leftovers can still score if they are small and central, but they are not automatic priorities.

Full Data