86 lines
2.6 KiB
C++
86 lines
2.6 KiB
C++
#include <gtest/gtest.h>
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#include <iostream>
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#include <string>
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#include <vector>
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#include <set>
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#include <sstream>
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#include "helm.h"
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/**
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* @file constTest.cpp
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* @brief Unit tests for the const class.
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*/
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/**
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* @brief Test suite for the const class.
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*/
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class eosTest : public ::testing::Test {};
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std::string HELM_FILENAME = std::string(getenv("MESON_SOURCE_ROOT")) + "/assets/eos/helm_table.dat";
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/**
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* @test Verify default constructor initializes correctly.
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*/
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TEST_F(eosTest, constructor) {
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using namespace helmholtz;
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EXPECT_NO_THROW(HELMTable table = read_helm_table(HELM_FILENAME));
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}
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TEST_F(eosTest, read_helm_table) {
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using namespace helmholtz;
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HELMTable table = read_helm_table(HELM_FILENAME);
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// Capture the << operator output as a string
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std::stringstream ss;
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ss << table;
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EXPECT_EQ(ss.str(), "HELMTable Data:\n imax: 541, jmax: 201\n Temperature Range: [1000, 1e+13]\n Density Range: [1e-12, 1e+15]\n");
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}
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TEST_F(eosTest, get_helm_EOS) {
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using namespace helmholtz;
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const int nel=3;
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double xmass[nel], aion[nel], zion[nel];
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EOSInput eos1;
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xmass[0] = 0.75; aion[0] = 1.0; zion[0] = 1.0;
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xmass[1] = 0.23; aion[1] = 4.0; zion[1] = 2.0;
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xmass[2] = 0.02; aion[2] = 12.0; zion[2] = 6.0;
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eos1.T = 1.0e8;
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eos1.rho = 1.0e6;
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double asum = 0.0;
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double zsum = 0.0;
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for (int i=0; i<nel; i++) {
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asum += xmass[i]/aion[i];
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zsum += xmass[i]*zion[i]/aion[i];
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}
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eos1.abar = 1.0/asum;
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eos1.zbar = eos1.abar*zsum;
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HELMTable table = read_helm_table(HELM_FILENAME);
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EOS eos = get_helm_EOS(eos1, table);
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// std::cout << eos << std::endl;
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//Check composition info
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EXPECT_DOUBLE_EQ( eos.ye, 8.75e-01);
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//Check E, P, S and derivatives of each wrt Rho and T
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EXPECT_DOUBLE_EQ( eos.etaele, 2.3043348231021554e+01);
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EXPECT_DOUBLE_EQ( eos.etot, 1.1586558190936826e+17);
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EXPECT_DOUBLE_EQ(eos.denerdd, 6.1893000468285858e+10);
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EXPECT_DOUBLE_EQ(eos.denerdt, 1.2129708972542575e+08);
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EXPECT_DOUBLE_EQ( eos.ptot, 6.9610135220017030e+22);
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EXPECT_DOUBLE_EQ(eos.dpresdd, 1.0296440482849070e+17);
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EXPECT_DOUBLE_EQ(eos.dpresdt, 7.7171347517311625e+13);
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EXPECT_DOUBLE_EQ( eos.stot, 6.0647461970567346e+08);
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EXPECT_DOUBLE_EQ(eos.dentrdd,-7.7171347517311645e+01);
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EXPECT_DOUBLE_EQ(eos.dentrdt, 1.2129708972542577e+00);
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const double abs_err = 1.0e-12;
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// Maxwell relations, should always be zero
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EXPECT_NEAR( eos.dse, 0, abs_err);
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EXPECT_NEAR( eos.dpe, 0, abs_err);
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EXPECT_NEAR( eos.dsp, 0, abs_err);
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}
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