Files
MicrOBU/microbu-esp32c5/external/vanetza-idf/vanetza/dcc/tests/gradual_state_machine.cpp
T
Ashin Walpola 0e9525162d Keep the colleague's microbu-esp32c5 tree in this repository
obu-firmware builds against vanetza-idf from microbu-esp32c5/external, but
that tree was gitignored, so a clone of this repository could not build the
firmware it ships. It is now committed here as ordinary files in its own
folder, microbu-esp32c5/: the colleague's commit cf4b99f plus the V2X2MAP
bridge's signature verification (--trust) used on the bench. Nothing is
fetched from or pushed to the colleague's repository; this repository and
its remotes carry everything. The folder's own .gitignore keeps build output,
downloaded components and private key material out, as it did there; the
committed file set is identical to that repository's tracked files.

The ESP32-C5 is still flashed from obu-firmware/, which only takes
vanetza-idf from microbu-esp32c5/, so the two stay separate folders.
FLASHING.md says how to take a newer version of the colleague's tree (copy
it over the folder, rebuild, test, commit).
2026-09-23 17:46:40 +02:00

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());
}