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added googletest and a USStandardAtmosphereTest

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This commit is contained in:
Travis Hunter 2023-05-15 18:36:47 -06:00
parent d307bf47c6
commit c7b453d253
5 changed files with 64 additions and 10 deletions
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9
CMakeLists.txt
View File

@ -5,6 +5,15 @@ project(qtrocket VERSION 0.1 LANGUAGES CXX)
include(FetchContent)
# Google Test framework
FetchContent_Declare(googletest
GIT_REPOSITORY https://github.com/google/googletest
GIT_TAG v1.13.0)
if(WIN32)
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
endif()
FetchContent_MakeAvailable(googletest)
# fmtlib dependency
FetchContent_Declare(fmt
GIT_REPOSITORY https://github.com/fmtlib/fmt

2
sim/CMakeLists.txt
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@ -22,3 +22,5 @@ add_library(sim
target_link_libraries(sim PRIVATE
utils)
# Unit tests
add_subdirectory(tests)

20
sim/USStandardAtmosphere.cpp
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@ -10,6 +10,7 @@
// qtrocket headers
#include "sim/USStandardAtmosphere.h"
#include "utils/math/Constants.h"
#include "utils/math/UtilityMathFunctions.h"
using namespace utils::math;
@ -35,13 +36,13 @@ utils::BinMap initTemps()
utils::BinMap initLapseRates()
{
utils::BinMap map;
map.insert(std::make_pair(0.0, 0.0065));
map.insert(std::make_pair(0.0, -0.0065));
map.insert(std::make_pair(11000.0, 0.0));
map.insert(std::make_pair(20000.0, -0.001));
map.insert(std::make_pair(32000.0, -0.0028));
map.insert(std::make_pair(20000.0, 0.001));
map.insert(std::make_pair(32000.0, 0.0028));
map.insert(std::make_pair(47000.0, 0.0));
map.insert(std::make_pair(51000.0, 0.0028));
map.insert(std::make_pair(71000.0, 0.002));
map.insert(std::make_pair(51000.0, -0.0028));
map.insert(std::make_pair(71000.0, -0.002));
return map;
}
@ -78,7 +79,7 @@ USStandardAtmosphere::~USStandardAtmosphere()
double USStandardAtmosphere::getDensity(double altitude)
{
if(temperatureLapseRate[altitude] == 0.0)
if(utils::math::floatingPointEqual(temperatureLapseRate[altitude], 0.0))
{
return standardDensity[altitude] * std::exp((-Constants::g0 * Constants::airMolarMass * (altitude - standardDensity.getBinBase(altitude)))
/ (Constants::Rstar * standardTemperature[altitude]));
@ -86,11 +87,10 @@ double USStandardAtmosphere::getDensity(double altitude)
}
else
{
double base = standardTemperature[altitude] /
(standardTemperature[altitude] + temperatureLapseRate[altitude] * (altitude - standardDensity.getBinBase(altitude)));
double base = (standardTemperature[altitude] - temperatureLapseRate[altitude] * (altitude - standardDensity.getBinBase(altitude))) / standardTemperature[altitude];
double exponent = 1 + (Constants::g0 * Constants::airMolarMass) /
(Constants::Rstar * temperatureLapseRate[altitude]);
double exponent = (Constants::g0 * Constants::airMolarMass) /
(Constants::Rstar * temperatureLapseRate[altitude]) - 1.0;
return standardDensity[altitude] * std::pow(base, exponent);

14
sim/tests/CMakeLists.txt Normal file
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@ -0,0 +1,14 @@
enable_testing()
add_executable(sim_tests
USStandardAtmosphereTests.cpp
)
target_link_libraries(sim_tests
sim
GTest::gtest_main
)
include(GoogleTest)
gtest_discover_tests(sim_tests)

29
sim/tests/USStandardAtmosphereTests.cpp Normal file
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@ -0,0 +1,29 @@
#include <gtest/gtest.h>
#include "sim/USStandardAtmosphere.h"
TEST(USStandardAtmosphereTests, DensityTests)
{
sim::USStandardAtmosphere atmosphere;
EXPECT_DOUBLE_EQ(atmosphere.getDensity(0.0), 1.225);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(1000.0), 1.112);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(2000.0), 1.007);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(3000.0), 0.9093);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(4000.0), 0.8194);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(5000.0), 0.7364);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(6000.0), 0.6601);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(7000.0), 0.5900);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(8000.0), 0.5258);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(9000.0), 0.4647);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(10000.0), 0.4135);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(15000.0), 0.1948);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(20000.0), 0.08891);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(25000.0), 0.04008);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(30000.0), 0.01841);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(40000.0), 0.003996);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(50000.0), 0.001027);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(60000.0), 0.0003097);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(70000.0), 0.00008283);
EXPECT_DOUBLE_EQ(atmosphere.getDensity(80000.0), 0.00001846);
}