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/* ----------------------------------------------------------------------
LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
https://www.lammps.org/, Sandia National Laboratories
LAMMPS Development team: developers@lammps.org
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 "text_file_reader.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "../testing/core.h"
#include <cstring>
#include <iostream>
#include <mpi.h>
#include <vector>
using namespace LAMMPS_NS;
using LAMMPS_NS::utils::split_words;
// whether to print verbose output (i.e. not capturing LAMMPS screen output).
bool verbose = false;
class TextFileReaderTest : public ::testing::Test {
protected:
void TearDown() override
{
platform::unlink("text_reader_one.file");
platform::unlink("text_reader_two.file");
}
void test_files()
{
FILE *fp = fopen("text_reader_one.file", "w");
fputs("# test file 1 for text file reader\n\n\none\n two \n\n"
"three # with comment\nfour ! with non-comment\n"
"# comments only\n five\n#END\n",
fp);
fclose(fp);
fp = fopen("text_reader_two.file", "w");
fputs("# test file for atomfile style variable\n\n"
"4 # four lines\n4 0.5 #with comment\n"
"2 -0.5 \n3 1.5\n1 -1.5\n\n"
"2\n10 1.0 # test\n13 1.0\n\n######\n"
"4\n1 4.0 # test\n2 3.0\n3 2.0\n4 1.0\n#END\n",
fp);
fclose(fp);
}
};
TEST_F(TextFileReaderTest, nofile)
{
ASSERT_THROW(
{ TextFileReader reader("text_reader_noexist.file", "test"); }, FileReaderException);
}
// this test cannot work on windows due to its non unix-like permission system
#if !defined(_WIN32)
TEST_F(TextFileReaderTest, permissions)
{
platform::unlink("text_reader_noperms.file");
FILE *fp = fopen("text_reader_noperms.file", "w");
ASSERT_NE(fp, nullptr);
fputs("word\n", fp);
fclose(fp);
chmod("text_reader_noperms.file", 0);
ASSERT_THROW(
{ TextFileReader reader("text_reader_noperms.file", "test"); }, FileReaderException);
platform::unlink("text_reader_noperms.file");
}
#endif
TEST_F(TextFileReaderTest, nofp)
{
ASSERT_THROW({ TextFileReader reader(nullptr, "test"); }, FileReaderException);
}
TEST_F(TextFileReaderTest, buffer)
{
test_files();
auto *reader = new TextFileReader("text_reader_two.file", "test");
reader->set_bufsize(4096);
reader->next_line();
ASSERT_THROW({ reader->set_bufsize(20); }, FileReaderException);
delete reader;
}
TEST_F(TextFileReaderTest, usefp)
{
test_files();
FILE *fp = fopen("text_reader_two.file", "r");
ASSERT_NE(fp, nullptr);
auto *reader = new TextFileReader(fp, "test");
auto *line = reader->next_line();
ASSERT_STREQ(line, "4 ");
line = reader->next_line(1);
ASSERT_STREQ(line, "4 0.5 ");
ASSERT_NO_THROW({ reader->skip_line(); });
auto values = reader->next_values(1);
ASSERT_EQ(values.count(), 2);
ASSERT_EQ(values.next_int(), 3);
ASSERT_STREQ(values.next_string().c_str(), "1.5");
ASSERT_NE(reader->next_line(), nullptr);
double data[20];
ASSERT_THROW({ reader->next_dvector(data, 20); }, FileReaderException);
ASSERT_THROW({ reader->skip_line(); }, EOFException);
ASSERT_EQ(reader->next_line(), nullptr);
delete reader;
// check that we reached EOF and the destructor didn't close the file.
ASSERT_NE(feof(fp), 0);
ASSERT_EQ(fclose(fp), 0);
}
TEST_F(TextFileReaderTest, comments)
{
test_files();
TextFileReader reader("text_reader_two.file", "test");
reader.ignore_comments = true;
auto *line = reader.next_line();
ASSERT_STREQ(line, "4 ");
line = reader.next_line(1);
ASSERT_STREQ(line, "4 0.5 ");
ASSERT_NO_THROW({ reader.skip_line(); });
auto values = reader.next_values(1);
ASSERT_EQ(values.count(), 2);
ASSERT_EQ(values.next_int(), 3);
ASSERT_STREQ(values.next_string().c_str(), "1.5");
ASSERT_NE(reader.next_line(), nullptr);
double data[20];
ASSERT_THROW({ reader.next_dvector(data, 20); }, FileReaderException);
ASSERT_THROW({ reader.skip_line(); }, EOFException);
ASSERT_EQ(reader.next_line(), nullptr);
}
TEST_F(TextFileReaderTest, nocomments)
{
test_files();
TextFileReader reader("text_reader_one.file", "test");
reader.ignore_comments = false;
auto *line = reader.next_line();
ASSERT_STREQ(line, "# test file 1 for text file reader\n");
line = reader.next_line(1);
ASSERT_STREQ(line, "one\n");
ASSERT_NO_THROW({ reader.skip_line(); });
auto values = reader.next_values(4);
ASSERT_EQ(values.count(), 4);
ASSERT_STREQ(values.next_string().c_str(), "three");
ASSERT_STREQ(values.next_string().c_str(), "#");
ASSERT_STREQ(values.next_string().c_str(), "with");
try {
reader.next_values(100);
FAIL() << "No exception thrown\n";
} catch (EOFException &e) {
ASSERT_STREQ(e.what(), "Incorrect format in test file! 9/100 parameters");
}
ASSERT_THROW({ reader.skip_line(); }, EOFException);
ASSERT_EQ(reader.next_line(), nullptr);
}
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;
}
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