| pwnall | f2d01a2 | 2017-02-09 22:00:16 | [diff] [blame] | 1 | <!doctype html> |
| 2 | <meta charset=utf-8> |
| 3 | <title>IndexedDB: Binary keys written to a database and read back</title> |
| James Graham | 6d984d2 | 2017-03-08 13:12:22 | [diff] [blame] | 4 | <meta name=timeout content=long> |
| pwnall | f2d01a2 | 2017-02-09 22:00:16 | [diff] [blame] | 5 | <script src="/resources/testharness.js"></script> |
| 6 | <script src="/resources/testharnessreport.js"></script> |
| 7 | <script src="support.js"></script> |
| 8 | <script> |
| 9 | |
| 10 | const sample = [0x44, 0x33, 0x22, 0x11, 0xFF, 0xEE, 0xDD, 0xCC]; |
| 11 | const buffer = new Uint8Array(sample).buffer; |
| 12 | |
| 13 | function assert_key_valid(a, message) { |
| 14 | assert_equals(indexedDB.cmp(a, a), 0, message); |
| 15 | } |
| 16 | |
| 17 | function assert_buffer_equals(a, b, message) { |
| 18 | assert_array_equals( |
| 19 | Array.from(new Uint8Array(a)), Array.from(new Uint8Array(b)), message); |
| 20 | } |
| 21 | |
| 22 | // Verifies that a JavaScript value round-trips through IndexedDB as a key. |
| 23 | function check_key_roundtrip_and_done(t, db, key, key_buffer) { |
| 24 | const tx = db.transaction('store', 'readwrite'); |
| 25 | const store = tx.objectStore('store'); |
| 26 | |
| 27 | // Verify put with key |
| 28 | const put_request = store.put('value', key); |
| 29 | put_request.onerror = t.unreached_func('put should succeed'); |
| 30 | |
| 31 | // Verify get with key |
| 32 | const get_request = store.get(key); |
| 33 | get_request.onerror = t.unreached_func('get should succeed'); |
| 34 | get_request.onsuccess = t.step_func(() => { |
| 35 | assert_equals( |
| 36 | get_request.result, 'value', |
| 37 | 'get should retrieve the value given to put'); |
| 38 | |
| 39 | // Verify iteration returning key |
| 40 | const cursor_request = store.openCursor(); |
| 41 | cursor_request.onerror = t.unreached_func('openCursor should succeed'); |
| 42 | cursor_request.onsuccess = t.step_func(() => { |
| 43 | assert_not_equals( |
| 44 | cursor_request.result, null, 'cursor should be present'); |
| 45 | const retrieved_key = cursor_request.result.key; |
| 46 | assert_true( |
| 47 | retrieved_key instanceof ArrayBuffer, |
| 48 | 'IndexedDB binary keys should be returned in ArrayBuffer instances'); |
| 49 | assert_key_equals( |
| 50 | retrieved_key, key, |
| 51 | 'The key returned by IndexedDB should equal the key given to put()'); |
| 52 | assert_buffer_equals( |
| 53 | retrieved_key, key_buffer, |
| 54 | 'The ArrayBuffer returned by IndexedDB should equal the buffer ' + |
| 55 | 'backing the key given to put()'); |
| 56 | |
| 57 | t.done(); |
| 58 | }); |
| 59 | }); |
| 60 | } |
| 61 | |
| 62 | // Checks that IndexedDB handles the given view type for binary keys correctly. |
| 63 | function view_type_test(type) { |
| 64 | indexeddb_test( |
| 65 | (t, db) => { db.createObjectStore('store'); }, |
| 66 | (t, db) => { |
| 67 | const key = new self[type](buffer); |
| 68 | assert_key_valid(key, `${type} should be usable as an IndexedDB key`); |
| 69 | assert_key_equals(key, buffer, |
| 70 | 'Binary keys with the same data but different view types should be ' + |
| 71 | ' equal'); |
| 72 | check_key_roundtrip_and_done(t, db, key, buffer); |
| 73 | }, |
| 74 | `Binary keys can be supplied using the view type ${type}`, |
| 75 | ); |
| 76 | } |
| 77 | |
| 78 | [ |
| 79 | 'Uint8Array', |
| 80 | 'Uint8ClampedArray', |
| 81 | 'Int8Array', |
| 82 | 'Uint16Array', |
| 83 | 'Int16Array', |
| 84 | 'Uint32Array', |
| 85 | 'Int32Array', |
| 86 | 'Float32Array', |
| 87 | 'Float64Array' |
| 88 | ].forEach((type) => { view_type_test(type); }); |
| 89 | |
| 90 | // Checks that IndexedDB |
| 91 | function value_test(value_description, value, value_buffer) { |
| 92 | indexeddb_test( |
| 93 | (t, db) => { db.createObjectStore('store'); }, |
| 94 | (t, db) => { |
| 95 | assert_key_valid( |
| 96 | value, value_description + ' should be usable as an valid key'); |
| 97 | check_key_roundtrip_and_done(t, db, value, value_buffer); |
| 98 | }, |
| 99 | `${value_description} can be used to supply a binary key` |
| 100 | ); |
| 101 | } |
| 102 | |
| 103 | value_test('ArrayBuffer', buffer, buffer); |
| 104 | value_test('DataView', new DataView(buffer), buffer); |
| 105 | value_test('DataView with explicit offset', new DataView(buffer, 3), |
| 106 | new Uint8Array([0x11, 0xFF, 0xEE, 0xDD, 0xCC]).buffer); |
| 107 | value_test('DataView with explicit offset and length', |
| 108 | new DataView(buffer, 3, 4), |
| 109 | new Uint8Array([0x11, 0xFF, 0xEE, 0xDD]).buffer); |
| 110 | value_test('Uint8Array with explicit offset', new Uint8Array(buffer, 3), |
| 111 | new Uint8Array([0x11, 0xFF, 0xEE, 0xDD, 0xCC]).buffer); |
| 112 | value_test('Uint8Array with explicit offset and length', |
| 113 | new Uint8Array(buffer, 3, 4), |
| 114 | new Uint8Array([0x11, 0xFF, 0xEE, 0xDD]).buffer); |
| 115 | |
| 116 | </script> |
