/* * Copyright (C) 2019 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "utils/FileMap.h" #include #include "android-base/file.h" TEST(FileMap, zero_length_mapping) { // http://b/119818070 "app crashes when reading asset of zero length". // mmap fails with EINVAL for a zero length region. TemporaryFile tf; ASSERT_TRUE(tf.fd != -1); android::FileMap m; ASSERT_TRUE(m.create("test", tf.fd, 4096, 0, true)); ASSERT_STREQ("test", m.getFileName()); ASSERT_EQ(0u, m.getDataLength()); ASSERT_EQ(4096, m.getDataOffset()); }