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//
// Copyright 2010 Ettus Research LLC
//
#include <boost/test/unit_test.hpp>
#include <usrp_uhd/gain_handler.hpp>
#include <usrp_uhd/utils.hpp>
#include <iostream>
using namespace usrp_uhd;
enum prop_t{
PROP_GAIN,
PROP_GAIN_MIN,
PROP_GAIN_MAX,
PROP_GAIN_STEP,
PROP_GAIN_NAMES
};
class gainful_obj : public wax::obj{
public:
gainful_obj(void){
_gain_handler = gain_handler::sptr(new gain_handler(
this, PROP_GAIN, PROP_GAIN_MIN, PROP_GAIN_MAX, PROP_GAIN_STEP, PROP_GAIN_NAMES
));
_gains["g0"] = 0;
_gains["g1"] = 0;
_gains_min["g0"] = -10;
_gains_min["g1"] = 0;
_gains_max["g0"] = 0;
_gains_max["g1"] = 100;
_gains_step["g0"] = .1;
_gains_step["g1"] = 1.5;
}
~gainful_obj(void){}
private:
void get(const wax::type &key_, wax::type &val){
if (_gain_handler->intercept_get(key_, val)) return;
wax::type key; std::string name;
tie(key, name) = extract_named_prop(key_);
//handle the get request conditioned on the key
switch(wax::cast<prop_t>(key)){
case PROP_GAIN:
val = _gains[name];
return;
case PROP_GAIN_MIN:
val = _gains_min[name];
return;
case PROP_GAIN_MAX:
val = _gains_max[name];
return;
case PROP_GAIN_STEP:
val = _gains_step[name];
return;
case PROP_GAIN_NAMES:
val = prop_names_t(get_map_keys(_gains));
return;
}
}
void set(const wax::type &key_, const wax::type &val){
if (_gain_handler->intercept_set(key_, val)) return;
wax::type key; std::string name;
tie(key, name) = extract_named_prop(key_);
//handle the get request conditioned on the key
switch(wax::cast<prop_t>(key)){
case PROP_GAIN:
_gains[name] = wax::cast<gain_t>(val);
return;
case PROP_GAIN_MIN:
case PROP_GAIN_MAX:
case PROP_GAIN_STEP:
case PROP_GAIN_NAMES:
throw std::runtime_error("cannot set this property");
}
}
gain_handler::sptr _gain_handler;
std::map<std::string, gain_t> _gains;
std::map<std::string, gain_t> _gains_min;
std::map<std::string, gain_t> _gains_max;
std::map<std::string, gain_t> _gains_step;
};
BOOST_AUTO_TEST_CASE(test_gain_handler){
std::cout << "Testing the gain handler..." << std::endl;
gainful_obj go0;
BOOST_CHECK_THROW(
wax::cast<gain_t>(go0[named_prop_t(PROP_GAIN, "fail")]),
std::invalid_argument
);
std::cout << "verifying the overall min, max, step" << std::endl;
BOOST_CHECK_EQUAL(wax::cast<gain_t>(go0[PROP_GAIN_MIN]), gain_t(-10));
BOOST_CHECK_EQUAL(wax::cast<gain_t>(go0[PROP_GAIN_MAX]), gain_t(100));
BOOST_CHECK_EQUAL(wax::cast<gain_t>(go0[PROP_GAIN_STEP]), gain_t(1.5));
std::cout << "verifying the overall gain" << std::endl;
go0[named_prop_t(PROP_GAIN, "g0")] = gain_t(-5);
go0[named_prop_t(PROP_GAIN, "g1")] = gain_t(30);
BOOST_CHECK_EQUAL(wax::cast<gain_t>(go0[PROP_GAIN]), gain_t(25));
}
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