| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>Keygenerator overflow</title> |
| <link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal"> |
| <link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#key-generator-concept"> |
| <link rel=assert title="When the current number of a key generator reaches above the value 2^53 (9007199254740992) any attempts to use the key generator to generate a new key will result in an error. It's still possible to insert records into the object store by specifying an explicit key, however the only way to use a key generator again for the object store is to delete the object store and create a new one."> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="support.js"></script> |
| |
| <script> |
| |
| var db, |
| t = async_test(), |
| overflow_error_fired = false, |
| objects = [9007199254740991, null, "error", 2, "error" ], |
| expected_keys = [2, 9007199254740991, 9007199254740992]; |
| |
| var open_rq = createdb(t); |
| open_rq.onupgradeneeded = function(e) { |
| db = e.target.result; |
| var objStore = db.createObjectStore("store", { keyPath: "id", autoIncrement: true }); |
| |
| for (var i = 0; i < objects.length; i++) |
| { |
| if (objects[i] === null) |
| { |
| objStore.add({}); |
| } |
| else if (objects[i] === "error") |
| { |
| var rq = objStore.add({}); |
| rq.onsuccess = fail(t, 'When "current number" overflows, error event is expected'); |
| rq.onerror = t.step_func(function(e) { |
| overflow_error_fired = true; |
| assert_equals(e.target.error.name, "ConstraintError", "error name"); |
| e.preventDefault(); |
| e.stopPropagation(); |
| }); |
| } |
| else |
| objStore.add({ id: objects[i] }); |
| } |
| }; |
| |
| open_rq.onsuccess = function(e) { |
| var actual_keys = [], |
| rq = db.transaction("store") |
| .objectStore("store") |
| .openCursor(); |
| |
| rq.onsuccess = t.step_func(function(e) { |
| var cursor = e.target.result; |
| |
| if (cursor) { |
| actual_keys.push(cursor.key.valueOf()); |
| cursor.continue(); |
| } |
| else { |
| assert_true(overflow_error_fired, "error fired on 'current number' overflow"); |
| assert_array_equals(actual_keys, expected_keys, "keygenerator array"); |
| |
| t.done(); |
| } |
| }); |
| }; |
| |
| </script> |
| |
| <div id="log"></div> |
