Files
sousa-gecko/xpcom/tests/TestMemoryPressureWatcherLinux.cpp
Emilio Cobos Álvarez 2223a8bee2 Bug 2054311 - Sort headers in xpcom/. r=xpcom-reviewers,nika
Automatically generated with:

    cp dom/.clang-format xpcom/ && mach format xpcom/**.{cpp,h}

Manual changes:

 * nsTDependentSubstring.cpp was relying on include order, prevent that
   from being changed by clang-format.
 * Missing nsAtom.h include from nsGkAtoms.h
 * nsWindowsHelpers.h needed to keep the include order
 * MemoryPressureLevelMac.h needed mozilla/Attributes.h

Differential Revision: https://phabricator.services.mozilla.com/D311687
2026-07-13 18:24:13 +00:00

64 lines
1.6 KiB
C++

/* 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 <fstream>
#include "mozilla/AvailableMemoryWatcherUtils.h"
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;
}