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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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,
#include "mozilla/AvailableMemoryWatcherUtils.h"
#include <fstream>
using namespace mozilla;
const char* kMemInfoPath = "/proc/meminfo";
const char* kTestfilePath = "testdata";
// Test that we are reading some value from /proc/meminfo.
// If the values are nonzero, the test is a success.
void TestFromProc() {
MemoryInfo memInfo{0, 0};
ReadMemoryFile(kMemInfoPath, memInfo);
MOZ_RELEASE_ASSERT(memInfo.memTotal != 0);
MOZ_RELEASE_ASSERT(memInfo.memAvailable != 0);
}
// Test a file using expected syntax.
void TestFromFile() {
MemoryInfo memInfo{0, 0};
std::ofstream aFile(kTestfilePath);
aFile << "MemTotal: 12345 kB\n";
aFile << "MemFree: 99999 kB\n";
aFile << "MemAvailable: 54321 kB\n";
aFile.close();
ReadMemoryFile(kTestfilePath, memInfo);
MOZ_RELEASE_ASSERT(memInfo.memTotal == 12345);
MOZ_RELEASE_ASSERT(memInfo.memAvailable == 54321);
// remove our dummy file
remove(kTestfilePath);
}
// Test a file with useless data. Results should be
// the starting struct with {0,0}.
void TestInvalidFile() {
MemoryInfo memInfo{0, 0};
std::ofstream aFile(kTestfilePath);
aFile << "foo: 12345 kB\n";
aFile << "bar";
aFile.close();
ReadMemoryFile(kTestfilePath, memInfo);
MOZ_RELEASE_ASSERT(memInfo.memTotal == 0);
MOZ_RELEASE_ASSERT(memInfo.memAvailable == 0);
// remove our dummy file
remove(kTestfilePath);
}
int main() {
TestFromProc();
TestFromFile();
TestInvalidFile();
return 0;
}