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/*************************************************************************
* Copyright (C) 2018-2022 Blue Brain Project
*
* This file is part of NMODL distributed under the terms of the GNU
* Lesser General Public License. See top-level LICENSE file for details.
*************************************************************************/
#include <catch2/catch_test_macros.hpp>
#include "ast/program.hpp"
#include "parser/nmodl_driver.hpp"
#include "test/unit/utils/test_utils.hpp"
#include "visitors/checkparent_visitor.hpp"
#include "visitors/neuron_solve_visitor.hpp"
#include "visitors/nmodl_visitor.hpp"
#include "visitors/symtab_visitor.hpp"
using namespace nmodl;
using namespace visitor;
using namespace test;
using namespace test_utils;
using nmodl::parser::NmodlDriver;
//=============================================================================
// CnexpSolve visitor tests
//=============================================================================
std::string run_cnexp_solve_visitor(const std::string& text) {
NmodlDriver driver;
const auto& ast = driver.parse_string(text);
SymtabVisitor().visit_program(*ast);
NeuronSolveVisitor().visit_program(*ast);
std::stringstream stream;
NmodlPrintVisitor(stream).visit_program(*ast);
// check that, after visitor rearrangement, parents are still up-to-date
CheckParentVisitor().check_ast(*ast);
return stream.str();
}
SCENARIO("NeuronSolveVisitor visitor solves different ODE types") {
GIVEN("Derivative block with cnexp method in breakpoint block") {
std::string nmodl_text = R"(
BREAKPOINT {
SOLVE states METHOD cnexp
}
DERIVATIVE states {
m' = (mInf-m)/mTau[0]
h' = (hInf-h)/hTau
m = m + h
}
)";
std::string output_nmodl = R"(
BREAKPOINT {
SOLVE states METHOD cnexp
}
DERIVATIVE states {
m = m+(1.0-exp(dt*((((-1.0)))/mTau[0])))*(-(((mInf))/mTau[0])/((((-1.0)))/mTau[0])-m)
h = h+(1.0-exp(dt*((((-1.0)))/hTau)))*(-(((hInf))/hTau)/((((-1.0)))/hTau)-h)
m = m+h
}
)";
THEN("ODEs get replaced with solution") {
std::string input = reindent_text(nmodl_text);
auto expected_result = reindent_text(output_nmodl);
auto result = run_cnexp_solve_visitor(input);
REQUIRE(result == expected_result);
}
}
GIVEN("Derivative block without any solve method specification") {
std::string nmodl_text = R"(
DERIVATIVE states {
m' = (mInf-m)/mTau
h' = (hInf-h)/hTau
}
)";
std::string output_nmodl = R"(
DERIVATIVE states {
m' = (mInf-m)/mTau
h' = (hInf-h)/hTau
}
)";
THEN("ODEs don't get solved") {
std::string input = reindent_text(nmodl_text);
auto expected_result = reindent_text(output_nmodl);
auto result = run_cnexp_solve_visitor(input);
REQUIRE(result == expected_result);
}
}
GIVEN("Derivative block with non-cnexp method in breakpoint block") {
std::string nmodl_text = R"(
BREAKPOINT {
SOLVE states METHOD derivimplicit
}
DERIVATIVE states {
m' = (mInf-m)/mTau
h' = (hInf-h)/hTau
}
)";
std::string output_nmodl = R"(
BREAKPOINT {
SOLVE states METHOD derivimplicit
}
DERIVATIVE states {
Dm = (mInf-m)/mTau
Dh = (hInf-h)/hTau
}
)";
THEN("ODEs don't get solved but state variables get replaced with Dstate ") {
std::string input = reindent_text(nmodl_text);
auto expected_result = reindent_text(output_nmodl);
auto result = run_cnexp_solve_visitor(input);
REQUIRE(result == expected_result);
}
}
GIVEN("Derivative block with ODEs that needs non-cnexp method to solve") {
std::string nmodl_text = R"(
BREAKPOINT {
SOLVE states METHOD cnexp
}
DERIVATIVE states {
A_AMPA' = tau_r_AMPA/A_AMPA
}
)";
std::string output_nmodl = R"(
BREAKPOINT {
SOLVE states METHOD cnexp
}
DERIVATIVE states {
A_AMPA' = tau_r_AMPA/A_AMPA
}
)";
THEN("ODEs don't get replaced as cnexp is not possible") {
std::string input = reindent_text(nmodl_text);
auto expected_result = reindent_text(output_nmodl);
auto result = run_cnexp_solve_visitor(input);
REQUIRE(result == expected_result);
}
}
}
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