1 files changed, 67 insertions, 0 deletions
diff --git a/LayoutTests/storage/read-transactions-running-concurrently.html b/LayoutTests/storage/read-transactions-running-concurrently.html
new file mode 100644
index 0000000..b2d862c
--- /dev/null
+++ b/LayoutTests/storage/read-transactions-running-concurrently.html
@@ -0,0 +1,67 @@
+<html>
+<head>
+<script>
+
+function log(message)
+{
+    document.body.innerHTML += message + "<br>";
+}
+
+function terminateTest()
+{
+    if (window.layoutTestController)
+        layoutTestController.notifyDone();
+}
+
+function openTestDatabase()
+{
+    return openDatabase("ReadTransactionsRunningConcurrentlyTest",
+                        "1.0",
+                        "Test to make sure that multiple read transactions on different DB handles to the same DB run concurrently.",
+                        32768);
+}
+
+var readTransactionsInProgress = 0;
+
+function runReadTransaction(db)
+{
+    db.readTransaction(function(tx) {
+            readTransactionsInProgress++;
+        }, function(error) {
+            log("Read transaction failed: " + error.message);
+            terminateTest();
+        }, function() {
+            if (readTransactionsInProgress == 2)
+                log("Read transactions running concurrently.");
+            readTransactionsInProgress--;
+            if (readTransactionsInProgress == 0)
+                terminateTest();
+        });
+}
+
+function runTest() {
+    if (window.layoutTestController) {
+        layoutTestController.dumpAsText();
+        layoutTestController.waitUntilDone();
+    }
+
+    try {
+        var db1 = openTestDatabase();
+        var db2 = openTestDatabase();
+        db1.transaction(function(tx) {
+                tx.executeSql("CREATE TABLE IF NOT EXISTS Test (Foo int);");
+            }, function(error) {
+                log("Cannot create the Test table: " + error.message);
+                terminateTest();
+            }, function() {
+                runReadTransaction(db1);
+                runReadTransaction(db2);
+            });
+     } catch(err) { log(err); }
+}
+</script>
+</head>
+<body onload="runTest();">
+This test tests that two read-only transactions on different handles to the same database run concurrently.<br>
+</body>
+</html>