test_parser.cc
c29addb8075alammps_2020

test_parser.cc
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			#define MAIN_SOURCE
			/* -------------------------------------------------------------------------- */
			#include "algebraic_parser.hh"
			#include "lm_common.hh"
			#include <fstream>
			#include <gtest/gtest.h>
			#include <iostream>
			#include <limits>
			/* -------------------------------------------------------------------------- */

			using namespace libmultiscale;
			TEST(PARSER, simple_reading) {
			AlgebraicExpressionParser p;

			std::string str;
			double result;
			auto expressions =
			std::vector<std::pair<std::string, Real>>{{"3", 3},
			{"-3", -3},
			{"L = 3", 3},
			{"L2 = 2*3", 6},
			{"L2 = -2*3", -6},
			{"L2 = -L+2*3", 3},
			{"L5 = (-5+2)*3", -9},
			{"L5 = (-L+2)*3", -3},
			{"L2", 3},
			{"L3 = sqrt(2)", std::sqrt(2)}};

			for (auto &&kv : expressions) {
			auto l = kv.first;
			auto val = kv.second;
			//std::cout << "Parsing " << l << "\n";
			bool r = p.parse(l, result);
			//std::cout << "result " << result << "\n";
			EXPECT_EQ(r, true);
			EXPECT_EQ(val, result);
			}
			}