test_transaction_helper.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-

 * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "storage_test_harness.h"

#include "mozStorageHelper.h"

#include "mozStorageConnection.h"

using namespace mozilla;

using namespace mozilla::storage;

bool has_transaction(mozIStorageConnection* aDB) {

  return !(static_cast<Connection*>(aDB)->getAutocommit());

/**

 * This file tests our Transaction helper in mozStorageHelper.h.

*/

TEST(storage_transaction_helper, Commit)

  nsCOMPtr<mozIStorageConnection> db(getMemoryDatabase());

  // Create a table in a transaction, call Commit, and make sure that it does

  // exists after the transaction falls out of scope.

    mozStorageTransaction transaction(db, false);

    do_check_success(transaction.Start());

    do_check_true(has_transaction(db));

    (void)db->ExecuteSimpleSQL("CREATE TABLE test (id INTEGER PRIMARY KEY)"_ns);

    (void)transaction.Commit();

  do_check_false(has_transaction(db));

  bool exists = false;

  (void)db->TableExists("test"_ns, &exists);

  do_check_true(exists);

TEST(storage_transaction_helper, Rollback)

  nsCOMPtr<mozIStorageConnection> db(getMemoryDatabase());

  // Create a table in a transaction, call Rollback, and make sure that it does

  // not exists after the transaction falls out of scope.

    mozStorageTransaction transaction(db, true);

    do_check_success(transaction.Start());

    do_check_true(has_transaction(db));

    (void)db->ExecuteSimpleSQL("CREATE TABLE test (id INTEGER PRIMARY KEY)"_ns);

    (void)transaction.Rollback();

  do_check_false(has_transaction(db));

  bool exists = true;

  (void)db->TableExists("test"_ns, &exists);

  do_check_false(exists);

TEST(storage_transaction_helper, AutoCommit)

  nsCOMPtr<mozIStorageConnection> db(getMemoryDatabase());

  // Create a table in a transaction, and make sure that it exists after the

  // transaction falls out of scope.  This means the Commit was successful.

    mozStorageTransaction transaction(db, true);

    do_check_success(transaction.Start());

    do_check_true(has_transaction(db));

    (void)db->ExecuteSimpleSQL("CREATE TABLE test (id INTEGER PRIMARY KEY)"_ns);

  do_check_false(has_transaction(db));

  bool exists = false;

  (void)db->TableExists("test"_ns, &exists);

  do_check_true(exists);

TEST(storage_transaction_helper, AutoRollback)

  nsCOMPtr<mozIStorageConnection> db(getMemoryDatabase());

  // Create a table in a transaction, and make sure that it does not exists

  // after the transaction falls out of scope.  This means the Rollback was

  // successful.

    mozStorageTransaction transaction(db, false);

    do_check_success(transaction.Start());

    do_check_true(has_transaction(db));

    (void)db->ExecuteSimpleSQL("CREATE TABLE test (id INTEGER PRIMARY KEY)"_ns);

  do_check_false(has_transaction(db));

  bool exists = true;

  (void)db->TableExists("test"_ns, &exists);

  do_check_false(exists);

TEST(storage_transaction_helper, null_database_connection)

  // We permit the use of the Transaction helper when passing a null database

  // in, so we need to make sure this still works without crashing.

  mozStorageTransaction transaction(nullptr, false);

  do_check_success(transaction.Start());

  do_check_true(NS_SUCCEEDED(transaction.Commit()));

  do_check_true(NS_SUCCEEDED(transaction.Rollback()));

TEST(storage_transaction_helper, async_Commit)

  HookSqliteMutex hook;

  nsCOMPtr<mozIStorageConnection> db(getMemoryDatabase());

  // -- wedge the thread

  nsCOMPtr<nsIThread> target(get_conn_async_thread(db));

  do_check_true(target);

  RefPtr<ThreadWedger> wedger(new ThreadWedger(target));

    mozStorageTransaction transaction(

        db, false, mozIStorageConnection::TRANSACTION_DEFERRED, true);

    do_check_success(transaction.Start());

    do_check_true(has_transaction(db));

    (void)db->ExecuteSimpleSQL("CREATE TABLE test (id INTEGER PRIMARY KEY)"_ns);

    (void)transaction.Commit();

  do_check_true(has_transaction(db));

  // -- unwedge the async thread

  wedger->unwedge();

  // Ensure the transaction has done its job by enqueueing an async execution.

  nsCOMPtr<mozIStorageAsyncStatement> stmt;

  (void)db->CreateAsyncStatement("SELECT NULL"_ns, getter_AddRefs(stmt));

  blocking_async_execute(stmt);

  stmt->Finalize();

  do_check_false(has_transaction(db));

  bool exists = false;

  (void)db->TableExists("test"_ns, &exists);

  do_check_true(exists);

  blocking_async_close(db);

TEST(storage_transaction_helper, Nesting)

  nsCOMPtr<mozIStorageConnection> db(getMemoryDatabase());

    mozStorageTransaction transaction(db, false);

    do_check_success(transaction.Start());

    do_check_true(has_transaction(db));

    do_check_success(

        db->ExecuteSimpleSQL("CREATE TABLE test (id INTEGER PRIMARY KEY)"_ns));

      mozStorageTransaction nestedTransaction(db, false);

      do_check_success(nestedTransaction.Start());

      do_check_true(has_transaction(db));

      do_check_success(db->ExecuteSimpleSQL(

          "CREATE TABLE nested_test (id INTEGER PRIMARY KEY)"_ns));

#ifndef MOZ_DIAGNOSTIC_ASSERT_ENABLED

      do_check_true(transaction.Commit() == NS_ERROR_NOT_AVAILABLE);

      do_check_true(transaction.Rollback() == NS_ERROR_NOT_AVAILABLE);

#endif

    bool exists = false;

    do_check_success(db->TableExists("nested_test"_ns, &exists));

    do_check_false(exists);

    (void)transaction.Commit();

  do_check_false(has_transaction(db));

  bool exists = false;

  do_check_success(db->TableExists("test"_ns, &exists));

  do_check_true(exists);