mirror of
https://github.com/nasa/trick.git
synced 2024-12-19 05:07:54 +00:00
75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
|
|
#include <gtest/gtest.h>
|
|
#include "trick/units_conv.h"
|
|
|
|
#define TOL 1e-7
|
|
/*
|
|
double tolerance(int exp)
|
|
{
|
|
return pow(10, exp);
|
|
}
|
|
*/
|
|
/*********************WARNING******************************************
|
|
* 1. new_units allocates memory for a Units_t object using new
|
|
* Use clean_up_Units_t() to deallocate the memory and set the pointer to NULL
|
|
*
|
|
* 2. Do not call clean_up_Units_t() on unitialized pointers!
|
|
* Initialize/Define pointers at declaration
|
|
* Declared pointers that don't point to a valid address or NULL will
|
|
* cause an error
|
|
**********************************************************************/
|
|
|
|
void clean_up_Units_t(Units_t** ptr)
|
|
{
|
|
if(*ptr != (Units_t*) NULL)
|
|
{
|
|
delete *ptr;
|
|
}
|
|
else
|
|
{
|
|
std::cerr << "WARNING: Call to clean_up_Units_t() on a NULL pointer" << std::endl
|
|
<< "Calling function should check for non-NULL value of pointer" << std::endl
|
|
<< "before calling clean_up_Units_t()" << std::endl;
|
|
}
|
|
*ptr = (Units_t*) NULL;
|
|
}
|
|
|
|
TEST(UnitsInterface, BogusUnit)
|
|
{
|
|
Units_t *Bogus = (Units_t*) NULL;
|
|
|
|
std::cerr << "The purpose of this test is to throw to an exception. Error messages are expected." << std::endl;
|
|
|
|
ASSERT_EQ((Units_t*) NULL, Bogus = new_units("foo"));
|
|
}
|
|
|
|
TEST(UnitsInterface, Newton_to_Pound)
|
|
{
|
|
UnitsConvFn_t Newton_to_Pound;
|
|
UnitsConvFn_t Newton_to_Pound2;
|
|
Units_t* Newton = (Units_t*) NULL;
|
|
Units_t* Pound = (Units_t*) NULL;
|
|
double pounds;
|
|
|
|
ASSERT_EQ(CONV_OK, conv_fn_s("kg*m/s2", "lbm*ft/s2", &Newton_to_Pound));
|
|
|
|
Newton = new_units("kg*m/s2");
|
|
Pound = new_units("lbm*ft/s2");
|
|
|
|
ASSERT_NE((Units_t*) NULL, Newton);
|
|
ASSERT_NE((Units_t*) NULL, Pound);
|
|
|
|
ASSERT_EQ(CONV_OK, conv_fn_u(Newton, Pound, &Newton_to_Pound2));
|
|
|
|
EXPECT_EQ(0, memcmp(&Newton_to_Pound, &Newton_to_Pound2, sizeof(UnitsConvFn_t)));
|
|
|
|
pounds = convert_units(1.0, &Newton_to_Pound);
|
|
|
|
ASSERT_NEAR((1.0/(0.45359237*0.3048)), pounds, TOL);
|
|
|
|
clean_up_Units_t(&Newton);
|
|
clean_up_Units_t(&Pound);
|
|
ASSERT_EQ((Units_t*) NULL, Newton);
|
|
ASSERT_EQ((Units_t*) NULL, Pound);
|
|
}
|