[IndexedDB] Add Observer Tests

third_party/WebKit/LayoutTests/storage/indexeddb/resources/observer-actions.js

+if (this.importScripts) {
+  importScripts('promise-idb.js');
+}
+
+window=this;
+var isWorker = window.document === undefined;
+
+function indexeddb_observers_actions(db1_name, db2_name, error_callback) {
+  var perform_db1_actions_part1 = function() {
+    var open_request = indexedDB.open(db1_name);
+    open_request.onsuccess = function() {
+      var db = open_request.result;
+      pdb.transact(db, ['store1', 'store2'], 'readwrite').then(function(txn) {
+        var os1 = txn.objectStore('store1');
+        var os2 = txn.objectStore('store2');
+        return Promise.all(
+          [pdb.delete(os1, IDBKeyRange.bound('a', 'b')),
+           pdb.put(os1, 'c', 'a'),
+           pdb.add(os2, 'z', 'z'),
+           pdb.waitForTransaction(txn)]);
+      }).catch(error_callback).then(perform_db1_actions_part2);
+    }
+  }
+
+  var perform_db1_actions_part2 = function() {
+    var open_request = indexedDB.open(db1_name);
+    open_request.onsuccess = function() {
+      var db = open_request.result;
+      pdb.transact(db, ['store1', 'store2'], 'readwrite').then(function(txn) {
+        var os1 = txn.objectStore('store1');
+        var os2 = txn.objectStore('store2');
+        return Promise.all(
+          [pdb.delete(os1, IDBKeyRange.bound('a', 'b')),
+           pdb.put(os1, 'd', 'a'),
+           pdb.put(os2, 'a', 'z'),
+           pdb.waitForTransaction(txn)]);
+      }).catch(error_callback);
+    }
+  }
+
+  var perform_db2_actions_part1 = function() {
+    var open_request = indexedDB.open(db2_name);
+    open_request.onsuccess = function() {
+      var db = open_request.result;
+      pdb.transact(db, ['store3', 'store4'], 'readwrite').then(function(txn) {
+        var os1 = txn.objectStore('store3');
+        var os2 = txn.objectStore('store4');
+        return Promise.all(
+          [pdb.put(os1, 'd', 'c'),
+           pdb.add(os2, 'z', 'z'),
+           pdb.waitForTransaction(txn)]);
+      }).catch(error_callback).then(perform_db2_actions_part2);
+    }
+  }
+
+  var perform_db2_actions_part2 = function() {
+    var open_request = indexedDB.open(db2_name);
+    open_request.onsuccess = function() {
+      var db = open_request.result;
+      pdb.transact(db, ['store3', 'store4'], 'readwrite').then(function(txn) {
+        var os1 = txn.objectStore('store3');
+        var os2 = txn.objectStore('store4');
+        return Promise.all(
+          [pdb.put(os1, 'e', 'c'),
+           pdb.put(os2, 'f', 'z'),
+           pdb.waitForTransaction(txn)]);
+      }).catch(error_callback);
+    }
+  }
+  perform_db1_actions_part1();
+  perform_db2_actions_part1();
+}
+
+if (isWorker && location.hash != "") {
+  var hash = location.hash.split("#")[1];
+  var names = JSON.parse(decodeURIComponent(hash));
+
+  var errorCallback = function(event) {
+    console.log('Error in actions: ' + event.target.error.message);
+  }
+
+  indexeddb_observers_actions(names.db1_name, names.db2_name, errorCallback);
+}