test: increase strategic coverage

src/components/ConflictResolverModal.extra.test.tsx

@@ -0,0 +1,69 @@
+import { fireEvent, render, screen } from '@testing-library/react'
+import { describe, expect, it, vi } from 'vitest'
+import { ConflictResolverModal } from './ConflictResolverModal'
+import type { ConflictFileState } from '../hooks/useConflictResolver'
+
+function renderModal(fileStates: ConflictFileState[], overrides: Record<string, unknown> = {}) {
+  const props = {
+    open: true,
+    fileStates,
+    allResolved: true,
+    committing: false,
+    error: null,
+    onResolveFile: vi.fn(),
+    onOpenInEditor: vi.fn(),
+    onCommit: vi.fn(),
+    onClose: vi.fn(),
+    ...overrides,
+  }
+
+  render(<ConflictResolverModal {...props} />)
+  return props
+}
+
+describe('ConflictResolverModal extra coverage', () => {
+  it('supports keyboard navigation and actions across the focused file', () => {
+    const props = renderModal([
+      { file: 'notes/project.md', resolution: null, resolving: false },
+      { file: 'notes/plan.md', resolution: null, resolving: false },
+    ])
+
+    const list = screen.getByTestId('conflict-file-list')
+
+    fireEvent.keyDown(list, { key: 'ArrowDown' })
+    fireEvent.keyDown(list, { key: 'T' })
+    expect(props.onResolveFile).toHaveBeenCalledWith('notes/plan.md', 'theirs')
+
+    fireEvent.keyDown(list, { key: 'ArrowUp' })
+    fireEvent.keyDown(list, { key: 'k' })
+    expect(props.onResolveFile).toHaveBeenCalledWith('notes/project.md', 'ours')
+
+    fireEvent.keyDown(list, { key: 'o' })
+    expect(props.onOpenInEditor).toHaveBeenCalledWith('notes/project.md')
+
+    fireEvent.keyDown(list, { key: 'Enter' })
+    expect(props.onCommit).toHaveBeenCalledTimes(1)
+
+    fireEvent.keyDown(list, { key: 'Escape' })
+    expect(props.onClose).toHaveBeenCalled()
+  })
+
+  it('ignores binary open shortcuts, resolving rows, and modifier-assisted actions', () => {
+    const props = renderModal([
+      { file: 'images/photo.png', resolution: null, resolving: false },
+      { file: 'notes/plan.md', resolution: null, resolving: true },
+    ], { allResolved: false })
+
+    const list = screen.getByTestId('conflict-file-list')
+
+    fireEvent.keyDown(list, { key: 'o' })
+    expect(props.onOpenInEditor).not.toHaveBeenCalled()
+
+    fireEvent.focus(screen.getByTestId('conflict-file-notes/plan.md'))
+    fireEvent.keyDown(list, { key: 'K' })
+    fireEvent.keyDown(list, { key: 'T', ctrlKey: true })
+
+    expect(props.onResolveFile).not.toHaveBeenCalled()
+    expect(props.onCommit).not.toHaveBeenCalled()
+  })
+})