Files
lammps/unittest/commands/test_variables.cpp
2021-03-24 16:47:08 -04:00

472 lines
19 KiB
C++

/* ----------------------------------------------------------------------
LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
https://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 "lammps.h"
#include "atom.h"
#include "domain.h"
#include "group.h"
#include "info.h"
#include "input.h"
#include "math_const.h"
#include "region.h"
#include "variable.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <cstring>
#include <vector>
// whether to print verbose output (i.e. not capturing LAMMPS screen output).
bool verbose = false;
#if defined(OMPI_MAJOR_VERSION)
const bool have_openmpi = true;
#else
const bool have_openmpi = false;
#endif
using LAMMPS_NS::MathConst::MY_PI;
using LAMMPS_NS::utils::split_words;
namespace LAMMPS_NS {
using ::testing::ExitedWithCode;
using ::testing::MatchesRegex;
using ::testing::StrEq;
#define TEST_FAILURE(errmsg, ...) \
if (Info::has_exceptions()) { \
::testing::internal::CaptureStdout(); \
ASSERT_ANY_THROW({__VA_ARGS__}); \
auto mesg = ::testing::internal::GetCapturedStdout(); \
if (verbose) std::cout << mesg; \
ASSERT_THAT(mesg, MatchesRegex(errmsg)); \
} else { \
if (!have_openmpi) { \
::testing::internal::CaptureStdout(); \
ASSERT_DEATH({__VA_ARGS__}, ""); \
auto mesg = ::testing::internal::GetCapturedStdout(); \
if (verbose) std::cout << mesg; \
ASSERT_THAT(mesg, MatchesRegex(errmsg)); \
} \
}
class VariableTest : public ::testing::Test {
protected:
LAMMPS *lmp;
Group *group;
Domain *domain;
Variable *variable;
void SetUp() override
{
const char *args[] = {"VariableTest", "-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();
group = lmp->group;
domain = lmp->domain;
variable = lmp->input->variable;
}
void TearDown() override
{
if (!verbose) ::testing::internal::CaptureStdout();
delete lmp;
if (!verbose) ::testing::internal::GetCapturedStdout();
std::cout.flush();
unlink("test_variable.file");
unlink("test_variable.atomfile");
}
void command(const std::string &cmd) { lmp->input->one(cmd); }
void atomic_system()
{
if (!verbose) ::testing::internal::CaptureStdout();
command("units real");
command("lattice sc 1.0 origin 0.125 0.125 0.125");
command("region box block -2 2 -2 2 -2 2");
command("create_box 8 box");
command("create_atoms 1 box");
command("mass * 1.0");
command("region left block -2.0 -1.0 INF INF INF INF");
command("region right block 0.5 2.0 INF INF INF INF");
command("region top block INF INF -2.0 -1.0 INF INF");
command("set region left type 2");
command("set region right type 3");
if (!verbose) ::testing::internal::GetCapturedStdout();
}
void molecular_system()
{
if (!verbose) ::testing::internal::CaptureStdout();
command("fix props all property/atom mol rmass q");
if (!verbose) ::testing::internal::GetCapturedStdout();
atomic_system();
if (!verbose) ::testing::internal::CaptureStdout();
command("variable molid atom floor(id/4)+1");
command("variable charge atom 2.0*sin(PI/32*id)");
command("set atom * mol v_molid");
command("set atom * charge v_charge");
command("set type 1 mass 0.5");
command("set type 2*4 mass 2.0");
if (!verbose) ::testing::internal::GetCapturedStdout();
}
void file_vars()
{
FILE *fp = fopen("test_variable.file", "w");
fputs("# test file for file style variable\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("test_variable.atomfile", "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(VariableTest, CreateDelete)
{
file_vars();
ASSERT_EQ(variable->nvar, 0);
if (!verbose) ::testing::internal::CaptureStdout();
command("variable one index 1 2 3 4");
command("variable two equal 1");
command("variable two equal 2");
command("variable three string four");
command("variable three string three");
command("variable four1 loop 4");
command("variable four2 loop 2 4");
command("variable five1 loop 100 pad");
command("variable five2 loop 100 200 pad");
command("variable six world one");
command("variable seven format two \"%5.2f\"");
command("variable eight getenv PWD");
command("variable eight getenv HOME");
command("variable nine file test_variable.file");
command("variable ten internal 1.0");
command("variable ten internal 10.0");
command("variable ten1 universe 1 2 3 4");
command("variable ten2 uloop 4");
command("variable ten3 uloop 4 pad");
command("variable dummy index 0");
if (!verbose) ::testing::internal::GetCapturedStdout();
ASSERT_EQ(variable->nvar, 16);
if (!verbose) ::testing::internal::CaptureStdout();
command("variable dummy delete");
if (!verbose) ::testing::internal::GetCapturedStdout();
ASSERT_EQ(variable->nvar, 15);
TEST_FAILURE(".*ERROR: Illegal variable command.*", command("variable"););
TEST_FAILURE(".*ERROR: Illegal variable command.*", command("variable dummy index"););
TEST_FAILURE(".*ERROR: Illegal variable command.*", command("variable dummy delete xxx"););
TEST_FAILURE(".*ERROR: Illegal variable command.*", command("variable dummy loop -1"););
TEST_FAILURE(".*ERROR: Illegal variable command.*", command("variable dummy loop 10 1"););
TEST_FAILURE(".*ERROR: Cannot redefine variable as a different style.*",
command("variable two string xxx"););
TEST_FAILURE(".*ERROR: Cannot redefine variable as a different style.*",
command("variable two getenv xxx"););
TEST_FAILURE(".*ERROR: Cannot redefine variable as a different style.*",
command("variable one equal 2"););
TEST_FAILURE(".*ERROR: Cannot redefine variable as a different style.*",
command("variable one internal 2"););
TEST_FAILURE(".*ERROR: Cannot use atomfile-style variable unless an atom map exists.*",
command("variable eleven atomfile test_variable.atomfile"););
TEST_FAILURE(".*ERROR on proc 0: Cannot open file variable file test_variable.xxx.*",
command("variable nine1 file test_variable.xxx"););
TEST_FAILURE(".*ERROR: World variable count doesn't match # of partitions.*",
command("variable ten10 world xxx xxx"););
TEST_FAILURE(".*ERROR: All universe/uloop variables must have same # of values.*",
command("variable ten4 uloop 2"););
TEST_FAILURE(".*ERROR: Incorrect conversion in format string.*",
command("variable ten11 format two \"%08f\""););
}
TEST_F(VariableTest, AtomicSystem)
{
command("atom_modify map array");
atomic_system();
file_vars();
if (!verbose) ::testing::internal::CaptureStdout();
command("variable one index 1 2 3 4");
command("variable id atom type");
command("variable id atom id");
command("variable ten atomfile test_variable.atomfile");
command("compute press all pressure NULL pair");
command("fix press all ave/time 1 1 1 c_press mode vector");
command("variable press vector f_press");
command("variable stress vector v_press+vol");
command("variable pmax equal max(f_press)");
command("run 0 post no");
if (!verbose) ::testing::internal::GetCapturedStdout();
ASSERT_EQ(variable->nvar, 6);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_pmax"), 0.0);
TEST_FAILURE(".*ERROR: Cannot redefine variable as a different style.*",
command("variable one atom x"););
TEST_FAILURE(".*ERROR on proc 0: Cannot open file variable file test_variable.xxx.*",
command("variable ten1 atomfile test_variable.xxx"););
}
TEST_F(VariableTest, Expressions)
{
atomic_system();
ASSERT_EQ(variable->nvar, 0);
if (!verbose) ::testing::internal::CaptureStdout();
command("variable one index 1");
command("variable two equal 2");
command("variable three equal v_one+v_two");
command("variable four equal PI");
command("variable five equal version");
command("variable six equal XXX");
command("variable seven equal -v_one");
command("variable eight equal v_three-0.5");
command("variable nine equal v_two*(v_one+v_three)");
command("variable ten equal (1.0/v_two)^2");
command("variable eleven equal v_three%2");
command("variable twelve equal 1==2");
command("variable ten3 equal 1!=v_two");
command("variable ten4 equal 1<2");
command("variable ten5 equal 2>1");
command("variable ten6 equal (1<=v_one)&&(v_ten>=0.2)");
command("variable ten7 equal !(1<v_two)");
command("variable ten8 equal 1|^0");
if (!verbose) ::testing::internal::GetCapturedStdout();
ASSERT_EQ(variable->nvar, 18);
int ivar = variable->find("one");
ASSERT_FALSE(variable->equalstyle(ivar));
ivar = variable->find("two");
ASSERT_TRUE(variable->equalstyle(ivar));
ASSERT_DOUBLE_EQ(variable->compute_equal(ivar), 2.0);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_three"), 3.0);
ASSERT_FLOAT_EQ(variable->compute_equal("v_four"), MY_PI);
ASSERT_GE(variable->compute_equal("v_five"), 20210310);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_seven"), -1);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_eight"), 2.5);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_nine"), 8);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_ten"), 0.25);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_eleven"), 1);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_twelve"), 0);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_ten3"), 1);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_ten4"), 1);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_ten5"), 1);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_ten6"), 1);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_ten7"), 0);
ASSERT_DOUBLE_EQ(variable->compute_equal("v_ten8"), 1);
TEST_FAILURE(".*ERROR: Variable six: Invalid thermo keyword 'XXX' in variable formula.*",
command("print \"${six}\""););
}
TEST_F(VariableTest, Functions)
{
atomic_system();
file_vars();
ASSERT_EQ(variable->nvar, 0);
if (!verbose) ::testing::internal::CaptureStdout();
command("variable one index 1");
command("variable two equal random(1,2,643532)");
command("variable three equal atan2(v_one,1)");
command("variable four equal atan2()");
if (!verbose) ::testing::internal::GetCapturedStdout();
ASSERT_EQ(variable->nvar, 4);
int ivar = variable->find("two");
ASSERT_GT(variable->compute_equal(ivar), 0.99);
ASSERT_LT(variable->compute_equal(ivar), 2.01);
ivar = variable->find("three");
ASSERT_DOUBLE_EQ(variable->compute_equal(ivar), 0.25 * MY_PI);
TEST_FAILURE(".*ERROR: Variable four: Invalid syntax in variable formula.*",
command("print \"${four}\""););
}
TEST_F(VariableTest, IfCommand)
{
if (!verbose) ::testing::internal::CaptureStdout();
command("variable one index 1");
if (!verbose) ::testing::internal::GetCapturedStdout();
::testing::internal::CaptureStdout();
command("if 1>0 then 'print \"bingo!\"'");
auto text = ::testing::internal::GetCapturedStdout();
if (verbose) std::cout << text;
ASSERT_THAT(text, MatchesRegex(".*bingo!.*"));
::testing::internal::CaptureStdout();
command("if 1>2 then 'print \"bingo!\"' else 'print \"nope?\"'");
text = ::testing::internal::GetCapturedStdout();
if (verbose) std::cout << text;
ASSERT_THAT(text, MatchesRegex(".*nope\?.*"));
::testing::internal::CaptureStdout();
command("if (1<=0) then 'print \"bingo!\"' else 'print \"nope?\"'");
text = ::testing::internal::GetCapturedStdout();
if (verbose) std::cout << text;
ASSERT_THAT(text, MatchesRegex(".*nope\?.*"));
::testing::internal::CaptureStdout();
command("if (-1.0e-1<0.0E+0)|^(1<0) then 'print \"bingo!\"'");
text = ::testing::internal::GetCapturedStdout();
if (verbose) std::cout << text;
ASSERT_THAT(text, MatchesRegex(".*bingo!.*"));
::testing::internal::CaptureStdout();
command("if (${one}==1.0)&&(2>=1) then 'print \"bingo!\"'");
text = ::testing::internal::GetCapturedStdout();
if (verbose) std::cout << text;
ASSERT_THAT(text, MatchesRegex(".*bingo!.*"));
::testing::internal::CaptureStdout();
command("if !((${one}!=1.0)||(2|^1)) then 'print \"missed\"' else 'print \"bingo!\"'");
text = ::testing::internal::GetCapturedStdout();
if (verbose) std::cout << text;
ASSERT_THAT(text, MatchesRegex(".*bingo!.*"));
::testing::internal::CaptureStdout();
command("if (1>=2)&&(0&&1) then 'print \"missed\"' else 'print \"bingo!\"'");
text = ::testing::internal::GetCapturedStdout();
if (verbose) std::cout << text;
ASSERT_THAT(text, MatchesRegex(".*bingo!.*"));
::testing::internal::CaptureStdout();
command("if !1 then 'print \"missed\"' else 'print \"bingo!\"'");
text = ::testing::internal::GetCapturedStdout();
if (verbose) std::cout << text;
ASSERT_THAT(text, MatchesRegex(".*bingo!.*"));
::testing::internal::CaptureStdout();
command("if !(a==b) then 'print \"bingo!\"'");
text = ::testing::internal::GetCapturedStdout();
if (verbose) std::cout << text;
ASSERT_THAT(text, MatchesRegex(".*bingo!.*"));
::testing::internal::CaptureStdout();
command("if x==x|^1==0 then 'print \"bingo!\"'");
text = ::testing::internal::GetCapturedStdout();
if (verbose) std::cout << text;
ASSERT_THAT(text, MatchesRegex(".*bingo!.*"));
::testing::internal::CaptureStdout();
command("if x!=x|^a!=b then 'print \"bingo!\"'");
text = ::testing::internal::GetCapturedStdout();
if (verbose) std::cout << text;
ASSERT_THAT(text, MatchesRegex(".*bingo!.*"));
TEST_FAILURE(".*ERROR: Invalid Boolean syntax in if command.*",
command("if () then 'print \"bingo!\"'"););
TEST_FAILURE(".*ERROR: Invalid Boolean syntax in if command.*",
command("if \"1 1\" then 'print \"bingo!\"'"););
TEST_FAILURE(".*ERROR: Invalid Boolean syntax in if command.*",
command("if 1a then 'print \"bingo!\"'"););
TEST_FAILURE(".*ERROR: Invalid Boolean syntax in if command.*",
command("if 1=<2 then 'print \"bingo!\"'"););
TEST_FAILURE(".*ERROR: Invalid Boolean syntax in if command.*",
command("if 1!=a then 'print \"bingo!\"'"););
TEST_FAILURE(".*ERROR: Invalid Boolean syntax in if command.*",
command("if 1&<2 then 'print \"bingo!\"'"););
TEST_FAILURE(".*ERROR: Invalid Boolean syntax in if command.*",
command("if 1|<2 then 'print \"bingo!\"'"););
TEST_FAILURE(".*ERROR: Invalid Boolean syntax in if command.*",
command("if (1)( then 'print \"bingo!\"'"););
TEST_FAILURE(".*ERROR: Invalid Boolean syntax in if command.*",
command("if (1)1 then 'print \"bingo!\"'"););
TEST_FAILURE(".*ERROR: Invalid Boolean syntax in if command.*",
command("if (v_one==1.0)&&(2>=1) then 'print \"bingo!\"'"););
}
TEST_F(VariableTest, NextCommand)
{
file_vars();
if (!verbose) ::testing::internal::CaptureStdout();
command("variable one index 1 2");
command("variable two equal 2");
command("variable three file test_variable.file");
command("variable four loop 2 4");
command("variable five index 1 2");
if (!verbose) ::testing::internal::GetCapturedStdout();
ASSERT_DOUBLE_EQ(variable->compute_equal("v_one"), 1);
ASSERT_THAT(variable->retrieve("three"), StrEq("one"));
if (!verbose) ::testing::internal::CaptureStdout();
command("next one");
command("next three");
if (!verbose) ::testing::internal::GetCapturedStdout();
ASSERT_DOUBLE_EQ(variable->compute_equal("v_one"), 2);
ASSERT_THAT(variable->retrieve("three"), StrEq("two"));
ASSERT_GE(variable->find("one"), 0);
if (!verbose) ::testing::internal::CaptureStdout();
command("next one");
command("next three");
if (!verbose) ::testing::internal::GetCapturedStdout();
// index style variable is deleted if no more next element
ASSERT_EQ(variable->find("one"), -1);
ASSERT_GE(variable->find("three"), 0);
if (!verbose) ::testing::internal::CaptureStdout();
command("next three");
command("next three");
command("next three");
if (!verbose) ::testing::internal::GetCapturedStdout();
// file style variable is deleted if no more next element
ASSERT_EQ(variable->find("three"), -1);
TEST_FAILURE(".*ERROR: Illegal next command.*", command("next"););
TEST_FAILURE(".*ERROR: Invalid variable 'xxx' in next command.*", command("next xxx"););
TEST_FAILURE(".*ERROR: Invalid variable style with next command.*", command("next two"););
TEST_FAILURE(".*ERROR: All variables in next command must have same style.*",
command("next five four"););
}
} // namespace LAMMPS_NS
int main(int argc, char **argv)
{
MPI_Init(&argc, &argv);
::testing::InitGoogleMock(&argc, argv);
if (have_openmpi && !LAMMPS_NS::Info::has_exceptions())
std::cout << "Warning: using OpenMPI without exceptions. "
"Death tests will be skipped\n";
// 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;
}