1 files changed, 70 insertions, 0 deletions
diff --git a/testing/web-platform/tests/IndexedDB/keygenerator-overflow.htm b/testing/web-platform/tests/IndexedDB/keygenerator-overflow.htm
new file mode 100644
index 0000000000..2dd6a8dca8
--- /dev/null
+++ b/testing/web-platform/tests/IndexedDB/keygenerator-overflow.htm
@@ -0,0 +1,70 @@
+<!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="resources/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", "readonly", {durability: 'relaxed'})
+                 .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>