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add unit tests for some file operations

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This commit is contained in:
Axel Kohlmeyer
2020-07-02 14:50:56 -04:00
parent 4660c043d8
commit 3a014a5430
2 changed files with 193 additions and 0 deletions
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4
unittest/formats/CMakeLists.txt
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@ -19,3 +19,7 @@ if (PKG_MANYBODY)
add_test(NAME EIMPotentialFileReader COMMAND test_eim_potential_file_reader WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
set_tests_properties(EIMPotentialFileReader PROPERTIES ENVIRONMENT "LAMMPS_POTENTIALS=${LAMMPS_POTENTIALS_DIR}")
endif()
add_executable(test_file_operations test_file_operations.cpp)
target_link_libraries(test_file_operations PRIVATE lammps GTest::GMock GTest::GTest)
add_test(NAME FileOperations COMMAND test_file_operations WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})

189
unittest/formats/test_file_operations.cpp Normal file
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@ -0,0 +1,189 @@
/* ----------------------------------------------------------------------
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.
------------------------------------------------------------------------- */
#include "info.h"
#include "input.h"
#include "lammps.h"
#include "utils.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <cstdio>
#include <mpi.h>
#include <string>
using namespace LAMMPS_NS;
using testing::StartsWith;
using testing::StrEq;
using utils::sfgets;
using utils::sfread;
using utils::split_words;
// whether to print verbose output (i.e. not capturing LAMMPS screen output).
bool verbose = false;
class FileOperationsTest : public ::testing::Test {
protected:
LAMMPS *lmp;
void SetUp() override
{
const char *args[] = {"FileOperationsTest", "-log", "none", "-echo", "screen", "-nocite"};
char **argv = (char **)args;
int argc = sizeof(args) / sizeof(char *);
if (!verbose) ::testing::internal::CaptureStdout();
lmp = new LAMMPS(argc, argv, MPI_COMM_WORLD);
if (!verbose) ::testing::internal::GetCapturedStdout();
ASSERT_NE(lmp, nullptr);
FILE *fp = fopen("safe_file_read_test.txt", "wb");
ASSERT_NE(fp, nullptr);
fputs("one line\n", fp);
fputs("two_lines\n", fp);
fputs("\n", fp);
fputs("no newline", fp);
fclose(fp);
}
void TearDown() override
{
if (!verbose) ::testing::internal::CaptureStdout();
delete lmp;
if (!verbose) ::testing::internal::GetCapturedStdout();
remove("safe_file_read_test.txt");
}
};
#define MAX_BUF_SIZE 128
TEST_F(FileOperationsTest, safe_fgets)
{
char buf[MAX_BUF_SIZE];
FILE *fp = fopen("safe_file_read_test.txt", "r");
ASSERT_NE(fp, nullptr);
memset(buf, 0, MAX_BUF_SIZE);
utils::sfgets(FLERR, buf, MAX_BUF_SIZE, fp, "safe_file_read_test.txt", lmp->error);
ASSERT_THAT(buf, StrEq("one line\n"));
memset(buf, 0, MAX_BUF_SIZE);
utils::sfgets(FLERR, buf, MAX_BUF_SIZE, fp, "safe_file_read_test.txt", lmp->error);
ASSERT_THAT(buf, StrEq("two_lines\n"));
memset(buf, 0, MAX_BUF_SIZE);
utils::sfgets(FLERR, buf, MAX_BUF_SIZE, fp, "safe_file_read_test.txt", lmp->error);
ASSERT_THAT(buf, StrEq("\n"));
memset(buf, 0, MAX_BUF_SIZE);
utils::sfgets(FLERR, buf, 4, fp, "safe_file_read_test.txt", lmp->error);
ASSERT_THAT(buf, StrEq("no "));
memset(buf, 0, MAX_BUF_SIZE);
utils::sfgets(FLERR, buf, MAX_BUF_SIZE, fp, "safe_file_read_test.txt", lmp->error);
ASSERT_THAT(buf, StrEq("newline"));
memset(buf, 0, MAX_BUF_SIZE);
::testing::internal::CaptureStdout();
if (Info::has_exceptions()) {
ASSERT_ANY_THROW(
utils::sfgets(FLERR, buf, MAX_BUF_SIZE, fp, "safe_file_read_test.txt", lmp->error));
} else {
ASSERT_DEATH(
{ utils::sfgets(FLERR, buf, MAX_BUF_SIZE, fp, "safe_file_read_test.txt", lmp->error); },
"");
}
std::string mesg = ::testing::internal::GetCapturedStdout();
ASSERT_THAT(mesg, StartsWith("ERROR on proc 0: Unexpected end of file while "
"reading file 'safe_file_read_test.txt'"));
fclose(fp);
}
#define MAX_BUF_SIZE 128
TEST_F(FileOperationsTest, safe_fread)
{
char buf[MAX_BUF_SIZE];
FILE *fp = fopen("safe_file_read_test.txt", "r");
ASSERT_NE(fp, nullptr);
memset(buf, 0, MAX_BUF_SIZE);
utils::sfread(FLERR, buf, 1, 9, fp, "safe_file_read_test.txt", lmp->error);
ASSERT_THAT(buf, StrEq("one line\n"));
memset(buf, 0, MAX_BUF_SIZE);
utils::sfread(FLERR, buf, 1, 10, fp, "safe_file_read_test.txt", nullptr);
ASSERT_THAT(buf, StrEq("two_lines\n"));
::testing::internal::CaptureStdout();
if (Info::has_exceptions()) {
ASSERT_ANY_THROW(
utils::sfread(FLERR, buf, 1, 100, fp, "safe_file_read_test.txt", lmp->error));
} else {
ASSERT_DEATH(
{ utils::sfread(FLERR, buf, 1, 100, fp, "safe_file_read_test.txt", lmp->error); }, "");
}
std::string mesg = ::testing::internal::GetCapturedStdout();
ASSERT_THAT(mesg, StartsWith("ERROR on proc 0: Unexpected end of file while "
"reading file 'safe_file_read_test.txt'"));
// short read but no error triggered due to passing a NULL pointer
memset(buf, 0, MAX_BUF_SIZE);
clearerr(fp);
rewind(fp);
utils::sfread(FLERR, buf, 1, 100, fp, "safe_file_read_test.txt", nullptr);
ASSERT_THAT(buf, StrEq("one line\ntwo_lines\n\nno newline"));
fclose(fp);
}
TEST_F(FileOperationsTest, logmesg)
{
char buf[8];
::testing::internal::CaptureStdout();
lmp->input->one("echo none");
::testing::internal::GetCapturedStdout();
::testing::internal::CaptureStdout();
utils::logmesg(lmp, "one\n");
lmp->input->one("log test_logmesg.log");
utils::logmesg(lmp, "two\n");
lmp->input->one("log none");
std::string out = ::testing::internal::GetCapturedStdout();
memset(buf, 0, 8);
FILE *fp = fopen("test_logmesg.log", "r");
fread(buf, 1, 8, fp);
fclose(fp);
ASSERT_THAT(out, StrEq("one\ntwo\n"));
ASSERT_THAT(buf, StrEq("two\n"));
remove("test_logmesg.log");
}
int main(int argc, char **argv)
{
MPI_Init(&argc, &argv);
::testing::InitGoogleMock(&argc, argv);
// handle arguments passed via environment variable
if (const char *var = getenv("TEST_ARGS")) {
std::vector<std::string> env = split_words(var);
for (auto arg : env) {
if (arg == "-v") {
verbose = true;
}
}
}
if ((argc > 1) && (strcmp(argv[1], "-v") == 0)) verbose = true;
int rv = RUN_ALL_TESTS();
MPI_Finalize();
return rv;
}