Files
Ashin Walpola d107534eb2 Keep vanetza-idf in obu-firmware, so a plain clone builds the firmware
obu-firmware builds against the vanetza-idf C-ITS library, which until now
came from the colleague's microbu-esp32c5 tree beside the repository and was
not tracked here, so a clone of this repository could not build the firmware
it ships. The library alone is now part of obu-firmware, as
obu-firmware/external/vanetza-idf: their external/vanetza-idf at commit
cf4b99f, unchanged (9775 files; see its PROVENANCE.md). CMake takes it from
there by default; -DVANETZA_IDF_DIR still points the build elsewhere.

The rest of the colleague's tree (their own VAM firmware, PKI tooling,
station-link Python tools, the V2X2MAP bridge) stays out of this repository
and gitignored; nothing is pushed to their repository. NOTES.md, docs/06,
TODO.md and the pcap verifier's usage line point at the new location.
2026-09-24 10:56:05 +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());
}