61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
|
#include <gtest/gtest.h>
|
||
|
|
#include <vanetza/dcc/gradual_state_machine.hpp>
|
||
|
|
#include <chrono>
|
||
|
|
|
||
|
|
using namespace vanetza::dcc;
|
||
|
|
using namespace std::chrono;
|
||
|
|
|
||
|
|
TEST(GradualStateMachine, initial_state)
|
||
|
|
{
|
||
|
|
GradualStateMachine fsm(etsiStates1ms);
|
||
|
|
EXPECT_EQ("Relaxed", fsm.state());
|
||
|
|
EXPECT_EQ(milliseconds(100), fsm.transmission_interval());
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST(GradualStateMachine, transitions)
|
||
|
|
{
|
||
|
|
GradualStateMachine fsm(etsiStates1ms);
|
||
|
|
EXPECT_EQ("Relaxed", fsm.state());
|
||
|
|
|
||
|
|
// now ramp up to Active 3
|
||
|
|
fsm.update(ChannelLoad { 0.5 });
|
||
|
|
EXPECT_EQ("Active 1", fsm.state());
|
||
|
|
fsm.update(ChannelLoad { 0.5 });
|
||
|
|
EXPECT_EQ("Active 2", fsm.state());
|
||
|
|
fsm.update(ChannelLoad { 0.5 });
|
||
|
|
EXPECT_EQ("Active 3", fsm.state());
|
||
|
|
fsm.update(ChannelLoad { 0.5 });
|
||
|
|
EXPECT_EQ("Active 3", fsm.state());
|
||
|
|
|
||
|
|
// step down one
|
||
|
|
fsm.update(ChannelLoad { 0.495 });
|
||
|
|
EXPECT_EQ("Active 2", fsm.state());
|
||
|
|
|
||
|
|
// go up to Restrictive gradually
|
||
|
|
fsm.update(ChannelLoad { 0.55 });
|
||
|
|
EXPECT_EQ("Active 3", fsm.state());
|
||
|
|
fsm.update(ChannelLoad { 0.65 });
|
||
|
|
EXPECT_EQ("Restrictive", fsm.state());
|
||
|
|
EXPECT_EQ(milliseconds(1000), fsm.transmission_interval());
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST(GradualStateMachine, empty_states)
|
||
|
|
{
|
||
|
|
GradualStateMachine fsm(GradualStateMachine::StateContainer {});
|
||
|
|
EXPECT_EQ("Relaxed", fsm.state());
|
||
|
|
EXPECT_EQ(seconds(0), fsm.transmission_interval());
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST(GradualStateMachine, one_state)
|
||
|
|
{
|
||
|
|
GradualStateMachine fsm(GradualStateMachine::StateContainer {{ ChannelLoad(0.5), milliseconds(30) }});
|
||
|
|
EXPECT_EQ("Relaxed", fsm.state());
|
||
|
|
EXPECT_EQ(milliseconds(30), fsm.transmission_interval());
|
||
|
|
fsm.update(ChannelLoad { 0.0 });
|
||
|
|
EXPECT_EQ(milliseconds(30), fsm.transmission_interval());
|
||
|
|
fsm.update(ChannelLoad { 1.0 });
|
||
|
|
EXPECT_EQ(milliseconds(30), fsm.transmission_interval());
|
||
|
|
EXPECT_EQ("Relaxed", fsm.state());
|
||
|
|
}
|
||
|
|
|