| // META: script=support.js |
| |
| indexeddb_test( |
| (t, db) => { |
| const store = db.createObjectStore('store'); |
| }, |
| |
| (t, db) => { |
| // Create in order tx1, tx2. |
| const tx1 = db.transaction('store', 'readwrite'); |
| const tx2 = db.transaction('store', 'readwrite'); |
| |
| // Use in order tx2, tx1. |
| tx2.objectStore('store').get(0); |
| tx1.objectStore('store').get(0); |
| |
| const order = []; |
| const done = barrier_func(2, t.step_func_done(() => { |
| // IndexedDB Spec: |
| // https://w3c.github.io/IndexedDB/#transaction-scheduling |
| // |
| // If multiple "readwrite" transactions are attempting to |
| // access the same object store (i.e. if they have overlapping |
| // scope), the transaction that was created first must be the |
| // transaction which gets access to the object store first. |
| // |
| assert_array_equals(order, [1, 2]); |
| })); |
| |
| tx1.oncomplete = t.step_func(e => { |
| order.push(1); |
| done(); |
| }); |
| |
| tx2.oncomplete = t.step_func(e => { |
| order.push(2); |
| done(); |
| }); |
| }, |
| "Verify Indexed DB transactions are ordered per spec"); |