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diff --git a/dom/indexedDB/test/unit/test_deleteDatabase_onblocked.js b/dom/indexedDB/test/unit/test_deleteDatabase_onblocked.js
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+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+var testGenerator = testSteps();
+
+function testSteps()
+{
+ const name = this.window ? window.location.pathname : "Splendid Test";
+ const dbVersion = 10;
+
+ let openRequest = indexedDB.open(name, dbVersion);
+ openRequest.onerror = errorHandler;
+ openRequest.onblocked = errorHandler;
+ openRequest.onsuccess = unexpectedSuccessHandler;
+ openRequest.onupgradeneeded = grabEventAndContinueHandler;
+
+ let event = yield undefined;
+
+ is(event.type, "upgradeneeded", "Expect an upgradeneeded event");
+ ok(event instanceof IDBVersionChangeEvent, "Expect a versionchange event");
+
+ let db = event.target.result;
+ db.onversionchange = errorHandler;
+ db.createObjectStore("stuff");
+
+ openRequest.onsuccess = grabEventAndContinueHandler;
+
+ event = yield undefined;
+
+ is(event.type, "success", "Expect a success event");
+ is(event.target, openRequest, "Event has right target");
+ ok(event.target.result instanceof IDBDatabase, "Result should be a database");
+ is(db.objectStoreNames.length, 1, "Expect an objectStore here");
+
+ db.onversionchange = grabEventAndContinueHandler;
+ let deletingRequest = indexedDB.deleteDatabase(name);
+ deletingRequest.onerror = errorHandler;
+ deletingRequest.onsuccess = errorHandler;
+ deletingRequest.onblocked = errorHandler;
+
+ event = yield undefined;
+
+ is(event.type, "versionchange", "Expect an versionchange event");
+ is(event.target, db, "Event has right target");
+ ok(event instanceof IDBVersionChangeEvent, "Expect a versionchange event");
+ is(event.oldVersion, dbVersion, "Correct old version");
+ is(event.newVersion, null, "Correct new version");
+
+ deletingRequest.onblocked = grabEventAndContinueHandler;
+
+ event = yield undefined;
+
+ is(event.type, "blocked", "Expect an blocked event");
+ is(event.target, deletingRequest, "Event has right target");
+ ok(event instanceof IDBVersionChangeEvent, "Expect a versionchange event");
+ is(event.oldVersion, dbVersion, "Correct old version");
+ is(event.newVersion, null, "Correct new version");
+
+ deletingRequest.onsuccess = grabEventAndContinueHandler;
+ db.close();
+
+ event = yield undefined;
+
+ is(event.type, "success", "expect a success event");
+ is(event.target, deletingRequest, "event has right target");
+ is(event.target.result, undefined, "event should have no result");
+
+ openRequest = indexedDB.open(name, 1);
+ openRequest.onerror = errorHandler;
+ openRequest.onsuccess = grabEventAndContinueHandler;
+
+ event = yield undefined;
+ db = event.target.result;
+ is(db.version, 1, "DB has proper version");
+ is(db.objectStoreNames.length, 0, "DB should have no object stores");
+
+ db.close();
+
+ finishTest();
+ yield undefined;
+}