Testing IndexedDB Schema Migrations in Offline-First PWAs
The article discusses the challenges of testing IndexedDB schema migrations in offline-first Progressive Web Apps (PWAs). It emphasizes the importance of ensuring that data integrity is maintained during migrations, particularly when real user data is involved. The author highlights that successful migration testing requires more than just checking if a database opens; it must also verify that the meaning of the data is preserved.
- ▪Migration testing in offline-first PWAs must account for real user data and potential issues that arise from outdated or incomplete records.
- ▪A successful migration that appears functional may still carry forward incorrect or misleading data, which poses a significant risk.
- ▪Testing should include historical data and edge cases to ensure that schema upgrades do not compromise data integrity.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3631931) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } CrisisCore-Systems Posted on May 19 • Originally published at dev.to Testing IndexedDB Schema Migrations in Offline-First PWAs #database #javascript #testing #webdev CrisisCore Build Log (27 Part Series) 1 Two People, Same Body: A Developer's Crisis Architecture 2 The False Positive Problem: Calibrating Crisis Detection Without Becoming The Boy Who Cried Wolf ... 23 more parts...
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