test: cover preferred export format hook#634

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saurabhhhcodes wants to merge 1 commit into

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saurabhhhcodes:test/preferred-export-format-559

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saurabhhhcodes commented Jun 6, 2026

Summary

add direct unit coverage for usePreferredExportFormat
assert empty default state, stored preference restoration, and savePreference persistence
keep the coverage isolated from page-level report components

Fixes #559

Validation

npm test -- --run testing/unit/hooks/usePreferredExportFormat.test.ts
git diff --check


          test: cover preferred export format hook

82eaf88

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