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idbcursor-advance-invalid.htm
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idbcursor-advance-invalid.htm
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<!DOCTYPE html>
<title>IDBCursor.advance() - invalid</title>
<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#widl-IDBCursor-advance-void-unsigned-long-count">
<link rel=assert title="If the value for count is 0 (zero) or a negative number, this method must throw a JavaScript TypeError exception.">
<link rel=assert title="TypeError The value passed into the count parameter was zero or a negative number.">
<link rel=assert title="InvalidStateError The cursor is currently being iterated, or has iterated past its end.">
<link rel=assert title="Calling this method more than once before new cursor data has been loaded is not allowed and results in a DOMException of type InvalidStateError being thrown. For example, calling advance() twice from the same onsuccess handler results in a DOMException of type InvalidStateError being thrown on the second call.">
<link rel=assert title="Before this method returns, unless an exception was thrown, it sets the got value flag on the cursor to false.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/support.js"></script>
<script>
function upgrade_func(t, db, tx) {
var objStore = db.createObjectStore("test");
objStore.createIndex("index", "");
objStore.add("data", 1);
objStore.add("data2", 2);
}
indexeddb_test(
upgrade_func,
function(t, db) {
var count = 0;
var rq = db.transaction("test", "readonly", {durability: 'relaxed'}).objectStore("test").index("index").openCursor();
rq.onsuccess = t.step_func(function(e) {
if (!e.target.result) {
assert_equals(count, 2, 'count');
t.done();
return;
}
var cursor = e.target.result;
cursor.advance(1);
// Second try
assert_throws_dom('InvalidStateError',
function() { cursor.advance(1); }, 'second advance');
assert_throws_dom('InvalidStateError',
function() { cursor.advance(3); }, 'third advance');
count++;
});
rq.onerror = t.unreached_func("unexpected error")
},
document.title + " - attempt to call advance twice"
);
indexeddb_test(
upgrade_func,
function(t, db) {
var rq = db.transaction("test", "readonly", {durability: 'relaxed'}).objectStore("test").index("index").openCursor();
rq.onsuccess = t.step_func(function(e) {
var cursor = e.target.result;
assert_throws_js(TypeError,
function() { cursor.advance(document); });
assert_throws_js(TypeError,
function() { cursor.advance({}); });
assert_throws_js(TypeError,
function() { cursor.advance([]); });
assert_throws_js(TypeError,
function() { cursor.advance(""); });
assert_throws_js(TypeError,
function() { cursor.advance("1 2"); });
t.done();
});
rq.onerror = t.unreached_func("unexpected error")
},
document.title + " - pass something other than number"
);
indexeddb_test(
upgrade_func,
function(t, db) {
var rq = db.transaction("test", "readonly", {durability: 'relaxed'}).objectStore("test").index("index").openCursor();
rq.onsuccess = t.step_func(function(e) {
var cursor = e.target.result;
assert_throws_js(TypeError,
function() { cursor.advance(null); });
assert_throws_js(TypeError,
function() { cursor.advance(undefined); });
var myvar = null;
assert_throws_js(TypeError,
function() { cursor.advance(myvar); });
t.done();
});
rq.onerror = t.unreached_func("unexpected error")
},
document.title + " - pass null/undefined"
);
indexeddb_test(
upgrade_func,
function(t, db) {
var rq = db.transaction("test", "readonly", {durability: 'relaxed'}).objectStore("test").index("index").openCursor();
rq.onsuccess = t.step_func(function(e) {
var cursor = e.target.result;
assert_throws_js(TypeError,
function() { cursor.advance(); });
t.done();
});
rq.onerror = t.unreached_func("unexpected error")
},
document.title + " - missing argument"
);
indexeddb_test(
upgrade_func,
function(t, db) {
var rq = db.transaction("test", "readonly", {durability: 'relaxed'}).objectStore("test").index("index").openCursor();
rq.onsuccess = t.step_func(function(e) {
var cursor = e.target.result;
assert_throws_js(TypeError,
function() { cursor.advance(-1); });
assert_throws_js(TypeError,
function() { cursor.advance(NaN); });
assert_throws_js(TypeError,
function() { cursor.advance(0); });
assert_throws_js(TypeError,
function() { cursor.advance(-0); });
assert_throws_js(TypeError,
function() { cursor.advance(Infinity); });
assert_throws_js(TypeError,
function() { cursor.advance(-Infinity); });
var myvar = -999999;
assert_throws_js(TypeError,
function() { cursor.advance(myvar); });
t.done();
});
rq.onerror = t.unreached_func("unexpected error")
},
document.title + " - pass negative numbers"
);
indexeddb_test(
upgrade_func,
function(t, db) {
var count = 0;
var rq = db.transaction("test", "readonly", {durability: 'relaxed'}).objectStore("test").index("index").openCursor();
rq.onsuccess = t.step_func(function(e) {
var cursor = e.target.result;
if (!cursor)
{
assert_equals(count, 2, "count runs");
t.done();
return;
}
assert_throws_js(TypeError,
function() { cursor.advance(0); });
cursor.advance(1);
count++;
});
rq.onerror = t.unreached_func("unexpected error")
},
document.title + " - got value not set on exception"
);
</script>