69 lines
1.9 KiB
69 lines
1.9 KiB
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless requied by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#include <android-base/parseint.h>
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#include <android-base/strings.h>
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#include <gtest/gtest.h>
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#include <algorithm>
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#include <fstream>
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using android::base::ParseInt;
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using android::base::Split;
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namespace android {
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enum swap_fields {
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SWAP_FILENAME = 0,
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SWAP_TYPE = 1,
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SWAP_SIZE = 2,
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SWAP_USED = 3,
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SWAP_PRIORITY = 4,
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SWAP_NUM = 5,
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};
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TEST(ZramTest, hasZramSwap) {
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const char* procSwapsPath = "/proc/swaps";
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const char* swapFilename = "/dev/block/zram0";
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int64_t swapSize;
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std::string delimiters = "\t ";
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std::ifstream ifs(procSwapsPath);
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std::string line;
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// Discard the header (first line)
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if (!std::getline(ifs, line)) {
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FAIL() << "Failed to read /proc/swaps.";
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}
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if (!std::getline(ifs, line)) {
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FAIL() << "No swaps found.";
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}
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std::vector<std::string> data = Split(line, delimiters);
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// Remove empty strings
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data.erase(std::remove_if(data.begin(), data.end(),
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[](const std::string& x) { return x.empty(); }),
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data.end());
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ASSERT_EQ(SWAP_NUM, data.size()) << "Unexpected format in /proc/swaps.";
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ASSERT_STREQ(swapFilename, data[SWAP_FILENAME].c_str())
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<< "No zram device found.";
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ParseInt(data[SWAP_SIZE], &swapSize);
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ASSERT_GE(swapSize, 0) << "No swap space on zram0.";
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}
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} // namespace android
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