parameters.cpp

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/*****************************************************************************
** Includes
*****************************************************************************/
 
#include <gtest/gtest.h>
#include "../../include/ecl/utilities/parameter.hpp"
 
/*****************************************************************************
 * Classes
 ****************************************************************************/
 
namespace ecl {
namespace utilities {
namespace tests {
 
 
class ParameterTest {
public:
        ParameterTest() : value(3) {};
    Parameter<int> value;
};
 
}}}
 
/*****************************************************************************
** Using
*****************************************************************************/
 
using ecl::Parameter;
using ecl::utilities::tests::ParameterTest;
 
/*****************************************************************************
** Tests
*****************************************************************************/
 
TEST(Parameter,get) {
 
        ParameterTest test;
    int i1 = test.value();
    // int &i2 = test.value(); // This one is not permitted the class loses control of the variable.
    const int i3 = test.value();
    const int &i4 = test.value();
    EXPECT_EQ(3,i1);
    EXPECT_EQ(3,i3);
    EXPECT_EQ(3,i4);
}
 
TEST(Parameter,set) {
 
        ParameterTest test;
    int i1 = test.value();
        int i_tmp = 3;
        int &i2 = i_tmp;
        const int i3 = test.value();
        const int &i4 = test.value();
        test.value(3);      // temporary
        EXPECT_EQ(3,test.value());
        test.value(i1);     // int
        EXPECT_EQ(3,test.value());
        test.value(i2);     // int&
        EXPECT_EQ(3,test.value());
        test.value(i3);     // const int
        EXPECT_EQ(3,test.value());
        test.value(i4);     // const int&
        EXPECT_EQ(3,test.value());
}
 
TEST(Parameter,assign) {
 
        ParameterTest test;
    int i1 = test.value();
        int i_tmp = 3;
        int &i2 = i_tmp;
        const int i3 = test.value();
        const int &i4 = test.value();
 
        test.value = 3;      // temporary
        EXPECT_EQ(3,test.value());
    test.value = i1;     // int
        EXPECT_EQ(3,test.value());
    test.value = i2;     // int&
        EXPECT_EQ(3,test.value());
    test.value = i3;     // const int
        EXPECT_EQ(3,test.value());
    test.value = i4;     // const int&
        EXPECT_EQ(3,test.value());
}
 
TEST(Parameter,eval) {
 
        ParameterTest test;
        int i1;
        i1 = test.value;
        EXPECT_EQ(3,i1);
//    int &i5 = test.value; // This one is not permitted the class loses control of the variable.
    const int &i5 = test.value;
        EXPECT_EQ(3,i5);
    const int i6 = test.value;
        EXPECT_EQ(3,i6);
    i1 = i5;  // remove the warning
        EXPECT_EQ(3,i1);
    i1 = i6;  // remove the warning
        EXPECT_EQ(3,i1);
}
 
/*****************************************************************************
** Main program
*****************************************************************************/
 
int main(int argc, char **argv) {
        testing::InitGoogleTest(&argc,argv);
        return RUN_ALL_TESTS();
}