platform_system_core/libutils/FileMap_test.cpp
Elliott Hughes 01705e4f1d Clean up libcutils/libutils tests.
Move tests in the same directory as the corresponding code, so it's
easier to see what is/isn't tested.

Fix naming of libcutils_tests (plural) to match the singular that's more
common (even though the plural makes more sense to me).

Add these two to system/core/'s TEST_MAPPING.

Remove obsolete AndroidTest.xml.

Fix a flaky (timing-dependent) libcutils test.

Test: ran tests
Change-Id: I7e0a31ff45c8a152562bf66fc97161594249366e
2019-02-11 13:15:56 -08:00

34 lines
1.1 KiB
C++

/*
* 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 <gtest/gtest.h>
#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());
}