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lammps/unittest/testing/core.h

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/* ----------------------------------------------------------------------
LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
http://lammps.sandia.gov, Sandia National Laboratories
Steve Plimpton, sjplimp@sandia.gov
Copyright (2003) Sandia Corporation. Under the terms of Contract
DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
certain rights in this software. This software is distributed under
the GNU General Public License.
See the README file in the top-level LAMMPS directory.
------------------------------------------------------------------------- */
#ifndef TESTING_CORE__H
#define TESTING_CORE__H
#include "info.h"
#include "input.h"
#include "lammps.h"
#include "variable.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <functional>
using namespace LAMMPS_NS;
using ::testing::MatchesRegex;
#define TEST_FAILURE(errmsg, ...) \
if (Info::has_exceptions()) { \
::testing::internal::CaptureStdout(); \
ASSERT_ANY_THROW({__VA_ARGS__}); \
auto mesg = ::testing::internal::GetCapturedStdout(); \
ASSERT_THAT(mesg, MatchesRegex(errmsg)); \
} else { \
if (Info::get_mpi_vendor() != "Open MPI") { \
::testing::internal::CaptureStdout(); \
ASSERT_DEATH({__VA_ARGS__}, ""); \
auto mesg = ::testing::internal::GetCapturedStdout(); \
ASSERT_THAT(mesg, MatchesRegex(errmsg)); \
} \
}
// whether to print verbose output (i.e. not capturing LAMMPS screen output).
extern bool verbose;
class LAMMPSTest : public ::testing::Test {
public:
void command(const std::string &line) { lmp->input->one(line.c_str()); }
void HIDE_OUTPUT(std::function<void()> f) {
if (!verbose) ::testing::internal::CaptureStdout();
f();
if (!verbose) ::testing::internal::GetCapturedStdout();
}
std::string CAPTURE_OUTPUT(std::function<void()> f) {
::testing::internal::CaptureStdout();
f();
auto output = ::testing::internal::GetCapturedStdout();
if (verbose) std::cout << output;
return output;
}
double get_variable_value(const std::string & name) {
char * str = utils::strdup(fmt::format("v_{}", name));
double value = lmp->input->variable->compute_equal(str);
delete [] str;
return value;
}
std::string get_variable_string(const std::string & name) {
return lmp->input->variable->retrieve(name.c_str());
}
protected:
const char *testbinary = "LAMMPSTest";
LAMMPS *lmp;
Info *info;
void SetUp() override
{
const char *args[] = {testbinary, "-log", "none", "-echo", "screen", "-nocite"};
char **argv = (char **)args;
int argc = sizeof(args) / sizeof(char *);
HIDE_OUTPUT([&] {
lmp = new LAMMPS(argc, argv, MPI_COMM_WORLD);
info = new Info(lmp);
});
InitSystem();
}
virtual void InitSystem() {}
void TearDown() override
{
HIDE_OUTPUT([&] {
delete info;
delete lmp;
info = nullptr;
lmp = nullptr;
});
}
};
#endif