1 files changed, 12 insertions, 0 deletions
diff --git a/testing/web-platform/tests/storage/estimate-usage-details.https.tentative.any.js b/testing/web-platform/tests/storage/estimate-usage-details.https.tentative.any.js
new file mode 100644
index 0000000000..2a1cea5fb8
--- /dev/null
+++ b/testing/web-platform/tests/storage/estimate-usage-details.https.tentative.any.js
@@ -0,0 +1,12 @@
+// META: title=StorageManager: estimate() should have usage details
+
+promise_test(async t => {
+  const estimate = await navigator.storage.estimate();
+  assert_equals(typeof estimate, 'object');
+  assert_true('usage' in estimate);
+  assert_equals(typeof estimate.usage, 'number');
+  assert_true('quota' in estimate);
+  assert_equals(typeof estimate.quota, 'number');
+  assert_true('usageDetails' in estimate);
+  assert_equals(typeof estimate.usageDetails, 'object');
+}, 'estimate() resolves to dictionary with members, including usageDetails');