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add tests for expressions and functions

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This commit is contained in:
Axel Kohlmeyer
2021-03-23 16:47:40 -04:00
parent 014f9ad527
commit 1ebb600829
1 changed files with 36 additions and 0 deletions
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36
unittest/commands/test_variables.cpp
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@ -18,6 +18,7 @@
#include "group.h"
#include "info.h"
#include "input.h"
#include "math_const.h"
#include "region.h"
#include "variable.h"
@ -37,6 +38,7 @@ const bool have_openmpi = false;
#endif
using LAMMPS_NS::utils::split_words;
using LAMMPS_NS::MathConst::MY_PI;
namespace LAMMPS_NS {
using ::testing::ExitedWithCode;
@ -206,6 +208,40 @@ TEST_F(VariableTest, AtomicSystem)
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)
{
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");
if (!verbose) ::testing::internal::GetCapturedStdout();
ASSERT_EQ(variable->nvar, 3);
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);
ivar = variable->find("three");
ASSERT_DOUBLE_EQ(variable->compute_equal(ivar),3.0);
}
TEST_F(VariableTest, Functions)
{
file_vars();
ASSERT_EQ(variable->nvar, 0);
if (!verbose) ::testing::internal::CaptureStdout();
command("variable one index 1");
command("variable two equal PI");
command("variable three equal atan2(v_one,1)");
if (!verbose) ::testing::internal::GetCapturedStdout();
ASSERT_EQ(variable->nvar, 3);
int ivar = variable->find("three");
ASSERT_DOUBLE_EQ(variable->compute_equal(ivar),0.25*MY_PI);
}
} // namespace LAMMPS_NS
int main(int argc, char **argv)