root/Source/modules/indexeddb/IDBTransactionTest.cpp

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. m_document
  2. executionContext
  3. create
  4. commit
  5. abort
  6. close
  7. create
  8. onVersionChange
  9. onForcedClose
  10. onAbort
  11. onComplete
  12. TEST_F
  13. TEST_F

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "modules/indexeddb/IDBTransaction.h"

#include "core/dom/DOMError.h"
#include "core/dom/Document.h"
#include "modules/indexeddb/IDBDatabase.h"
#include "modules/indexeddb/IDBDatabaseCallbacks.h"
#include "modules/indexeddb/IDBPendingTransactionMonitor.h"
#include "platform/SharedBuffer.h"
#include "public/platform/WebIDBDatabase.h"

#include <gtest/gtest.h>

using namespace WebCore;

using blink::WebIDBDatabase;

namespace {

class IDBTransactionTest : public testing::Test {
public:
    IDBTransactionTest()
        : m_scope(V8ExecutionScope::create(v8::Isolate::GetCurrent()))
        , m_document(Document::create())
    {
    }

    ExecutionContext* executionContext()
    {
        return m_document.get();
    }

private:
    OwnPtr<V8ExecutionScope> m_scope;
    RefPtr<Document> m_document;
};

class FakeWebIDBDatabase FINAL : public blink::WebIDBDatabase {
public:
    static PassOwnPtr<FakeWebIDBDatabase> create() { return adoptPtr(new FakeWebIDBDatabase()); }

    virtual void commit(long long transactionId) OVERRIDE { }
    virtual void abort(long long transactionId) OVERRIDE { }
    virtual void close() OVERRIDE { }

private:
    FakeWebIDBDatabase() { }
};

class FakeIDBDatabaseCallbacks FINAL : public IDBDatabaseCallbacks {
public:
    static PassRefPtr<FakeIDBDatabaseCallbacks> create() { return adoptRef(new FakeIDBDatabaseCallbacks()); }
    virtual void onVersionChange(int64_t oldVersion, int64_t newVersion) OVERRIDE { }
    virtual void onForcedClose() OVERRIDE { }
    virtual void onAbort(int64_t transactionId, PassRefPtrWillBeRawPtr<DOMError> error) OVERRIDE { }
    virtual void onComplete(int64_t transactionId) OVERRIDE { }
private:
    FakeIDBDatabaseCallbacks() { }
};

TEST_F(IDBTransactionTest, EnsureLifetime)
{
    OwnPtr<FakeWebIDBDatabase> backend = FakeWebIDBDatabase::create();
    RefPtr<FakeIDBDatabaseCallbacks> connection = FakeIDBDatabaseCallbacks::create();
    RefPtr<IDBDatabase> db = IDBDatabase::create(executionContext(), backend.release(), connection);

    const int64_t transactionId = 1234;
    const Vector<String> transactionScope;
    RefPtr<IDBTransaction> transaction = IDBTransaction::create(executionContext(), transactionId, transactionScope, blink::WebIDBDatabase::TransactionReadOnly, db.get());

    // Local reference, IDBDatabase's reference and IDBPendingTransactionMonitor's reference:
    EXPECT_EQ(3, transaction->refCount());

    RefPtr<IDBRequest> request = IDBRequest::create(executionContext(), IDBAny::createUndefined(), transaction.get());
    IDBPendingTransactionMonitor::deactivateNewTransactions();

    // Local reference, IDBDatabase's reference, and the IDBRequest's reference
    EXPECT_EQ(3, transaction->refCount());

    // This will generate an abort() call to the back end which is dropped by the fake proxy,
    // so an explicit onAbort call is made.
    executionContext()->stopActiveDOMObjects();
    transaction->onAbort(DOMError::create(AbortError, "Aborted"));

    EXPECT_EQ(1, transaction->refCount());
}

TEST_F(IDBTransactionTest, TransactionFinish)
{
    OwnPtr<FakeWebIDBDatabase> backend = FakeWebIDBDatabase::create();
    RefPtr<FakeIDBDatabaseCallbacks> connection = FakeIDBDatabaseCallbacks::create();
    RefPtr<IDBDatabase> db = IDBDatabase::create(executionContext(), backend.release(), connection);

    const int64_t transactionId = 1234;
    const Vector<String> transactionScope;
    RefPtr<IDBTransaction> transaction = IDBTransaction::create(executionContext(), transactionId, transactionScope, blink::WebIDBDatabase::TransactionReadOnly, db.get());

    // Local reference, IDBDatabase's reference and IDBPendingTransactionMonitor's reference:
    EXPECT_EQ(3, transaction->refCount());

    IDBPendingTransactionMonitor::deactivateNewTransactions();

    // Local reference, IDBDatabase's reference
    EXPECT_EQ(2, transaction->refCount());

    IDBTransaction* transactionPtr = transaction.get();
    transaction.clear();

    // IDBDatabase's reference
    EXPECT_EQ(1, transactionPtr->refCount());

    // Stop the context, so events don't get queued (which would keep the transaction alive).
    executionContext()->stopActiveDOMObjects();

    // Fire an abort to make sure this doesn't free the transaction during use. The test
    // will not fail if it is, but ASAN would notice the error.
    db->onAbort(transactionId, DOMError::create(AbortError, "Aborted"));

    // onAbort() should have cleared the transaction's reference to the database.
    EXPECT_EQ(1, db->refCount());
}

} // namespace

/* [<][>][^][v][top][bottom][index][help] */