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Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /storage/estimate-usage-details-caches.https.tentative.any.html - WPT Dashboard Interop Dashboard
- /storage/estimate-usage-details-caches.https.tentative.any.worker.html - WPT Dashboard Interop Dashboard
// META: title=StorageManager: estimate() for caches
promise_test(async t => {
let estimate = await navigator.storage.estimate();
const cachesUsageBeforeCreate = estimate.usageDetails.caches || 0;
const cacheName = 'testCache';
const cache = await caches.open(cacheName);
t.add_cleanup(() => caches.delete(cacheName));
await cache.put('/test.json', new Response('x'.repeat(1024*1024)));
estimate = await navigator.storage.estimate();
assert_true('caches' in estimate.usageDetails);
const cachesUsageAfterPut = estimate.usageDetails.caches;
assert_greater_than(
cachesUsageAfterPut, cachesUsageBeforeCreate,
'estimated usage should increase after value is stored');
}, 'estimate() shows usage increase after large value is stored');