136 lines
4.5 KiB
C++
136 lines
4.5 KiB
C++
// unit tests for testing scatter/gather operations through the library interface
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#include "lammps.h"
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#include "library.h"
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#include "lmptype.h"
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#include "platform.h"
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#include <string>
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include "test_main.h"
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#define STRINGIFY(val) XSTR(val)
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#define XSTR(val) #val
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using ::LAMMPS_NS::bigint;
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using ::LAMMPS_NS::tagint;
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using ::LAMMPS_NS::platform::path_join;
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using ::testing::HasSubstr;
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using ::testing::StartsWith;
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class GatherProperties : public ::testing::Test {
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protected:
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void *lmp;
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std::string INPUT_DIR = STRINGIFY(TEST_INPUT_FOLDER);
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GatherProperties() = default;
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~GatherProperties() override = default;
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void SetUp() override
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{
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const char *args[] = {"LAMMPS_test", "-log", "none",
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"-echo", "screen", "-nocite",
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"-var", "input_dir", STRINGIFY(TEST_INPUT_FOLDER)};
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char **argv = (char **)args;
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int argc = sizeof(args) / sizeof(char *);
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::testing::internal::CaptureStdout();
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lmp = lammps_open_no_mpi(argc, argv, nullptr);
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std::string output = ::testing::internal::GetCapturedStdout();
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if (verbose) std::cout << output;
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EXPECT_THAT(output, StartsWith("LAMMPS ("));
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}
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void TearDown() override
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{
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::testing::internal::CaptureStdout();
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lammps_close(lmp);
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std::string output = ::testing::internal::GetCapturedStdout();
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EXPECT_THAT(output, HasSubstr("Total wall time:"));
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if (verbose) std::cout << output;
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lmp = nullptr;
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}
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};
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TEST_F(GatherProperties, gather_bonds_newton_on)
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{
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if (!lammps_has_style(lmp, "atom", "full")) GTEST_SKIP();
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std::string input = path_join(INPUT_DIR, "in.fourmol");
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if (!verbose) ::testing::internal::CaptureStdout();
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lammps_command(lmp, "newton on on");
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lammps_file(lmp, input.c_str());
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if (!verbose) ::testing::internal::GetCapturedStdout();
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bigint nbonds = *(bigint *)lammps_extract_global(lmp, "nbonds");
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EXPECT_EQ(nbonds, 24);
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tagint *bonds = new tagint[3 * nbonds];
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lammps_gather_bonds(lmp, bonds);
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#define CHECK_BOND(idx, type, atom1, atom2) \
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if (((bonds[3 * idx + 1] == atom1) && (bonds[3 * idx + 2] == atom2)) || \
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((bonds[3 * idx + 1] == atom2) && (bonds[3 * idx + 2] == atom1))) { \
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EXPECT_EQ(bonds[3 * idx], type); \
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++count; \
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}
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// check validity of a few bonds by comparing the bond type and counting the matches.
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int count = 0;
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for (bigint i = 0; i < nbonds; ++i) {
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CHECK_BOND(i, 5, 1, 2);
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CHECK_BOND(i, 3, 1, 3);
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CHECK_BOND(i, 2, 3, 4);
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CHECK_BOND(i, 2, 3, 5);
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CHECK_BOND(i, 1, 3, 6);
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CHECK_BOND(i, 3, 6, 8);
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CHECK_BOND(i, 4, 6, 7);
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CHECK_BOND(i, 5, 8, 9);
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CHECK_BOND(i, 5, 27, 28);
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CHECK_BOND(i, 5, 27, 29);
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}
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EXPECT_EQ(count, 10);
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delete[] bonds;
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};
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TEST_F(GatherProperties, gather_bonds_newton_off)
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{
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if (!lammps_has_style(lmp, "atom", "full")) GTEST_SKIP();
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std::string input = path_join(INPUT_DIR, "in.fourmol");
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if (!verbose) ::testing::internal::CaptureStdout();
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lammps_command(lmp, "newton off off");
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lammps_file(lmp, input.c_str());
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if (!verbose) ::testing::internal::GetCapturedStdout();
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bigint nbonds = *(bigint *)lammps_extract_global(lmp, "nbonds");
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EXPECT_EQ(nbonds, 24);
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tagint *bonds = new tagint[3 * nbonds];
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lammps_gather_bonds(lmp, bonds);
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#define CHECK_BOND(idx, type, atom1, atom2) \
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if (((bonds[3 * idx + 1] == atom1) && (bonds[3 * idx + 2] == atom2)) || \
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((bonds[3 * idx + 1] == atom2) && (bonds[3 * idx + 2] == atom1))) { \
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EXPECT_EQ(bonds[3 * idx], type); \
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++count; \
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}
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// check validity of a few bonds by comparing the bond type and counting the matches.
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int count = 0;
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for (bigint i = 0; i < nbonds; ++i) {
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CHECK_BOND(i, 5, 1, 2);
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CHECK_BOND(i, 3, 1, 3);
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CHECK_BOND(i, 2, 3, 4);
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CHECK_BOND(i, 2, 3, 5);
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CHECK_BOND(i, 1, 3, 6);
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CHECK_BOND(i, 3, 6, 8);
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CHECK_BOND(i, 4, 6, 7);
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CHECK_BOND(i, 5, 8, 9);
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CHECK_BOND(i, 5, 27, 28);
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CHECK_BOND(i, 5, 27, 29);
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}
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EXPECT_EQ(count, 10);
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delete[] bonds;
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};
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