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qmk_firmware/quantum/sequencer/tests/sequencer_tests.cpp

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/* Copyright 2020 Rodolphe Belouin
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "gtest/gtest.h"
extern "C" {
#include "sequencer.h"
#include "midi_mock.h"
#include "quantum/quantum_keycodes.h"
}
extern "C" {
void set_time(uint32_t t);
void advance_time(uint32_t ms);
}
class SequencerTest : public ::testing::Test {
protected:
void SetUp() override {
config_copy.enabled = sequencer_config.enabled;
for (int i = 0; i < SEQUENCER_STEPS; i++) {
config_copy.steps[i] = sequencer_config.steps[i];
}
for (int i = 0; i < SEQUENCER_TRACKS; i++) {
config_copy.track_notes[i] = sequencer_config.track_notes[i];
}
config_copy.tempo = sequencer_config.tempo;
config_copy.resolution = sequencer_config.resolution;
state_copy.active_tracks = sequencer_internal_state.active_tracks;
state_copy.current_track = sequencer_internal_state.current_track;
state_copy.current_step = sequencer_internal_state.current_step;
state_copy.timer = sequencer_internal_state.timer;
last_noteon = 0;
last_noteoff = 0;
set_time(0);
}
void TearDown() override {
sequencer_config.enabled = config_copy.enabled;
for (int i = 0; i < SEQUENCER_STEPS; i++) {
sequencer_config.steps[i] = config_copy.steps[i];
}
for (int i = 0; i < SEQUENCER_TRACKS; i++) {
sequencer_config.track_notes[i] = config_copy.track_notes[i];
}
sequencer_config.tempo = config_copy.tempo;
sequencer_config.resolution = config_copy.resolution;
sequencer_internal_state.active_tracks = state_copy.active_tracks;
sequencer_internal_state.current_track = state_copy.current_track;
sequencer_internal_state.current_step = state_copy.current_step;
sequencer_internal_state.timer = state_copy.timer;
}
sequencer_config_t config_copy;
sequencer_state_t state_copy;
};
TEST_F(SequencerTest, TestOffByDefault) {
EXPECT_EQ(is_sequencer_on(), false);
}
TEST_F(SequencerTest, TestOn) {
sequencer_config.enabled = false;
sequencer_on();
EXPECT_EQ(is_sequencer_on(), true);
// sequencer_on is idempotent
sequencer_on();
EXPECT_EQ(is_sequencer_on(), true);
}
TEST_F(SequencerTest, TestOff) {
sequencer_config.enabled = true;
sequencer_off();
EXPECT_EQ(is_sequencer_on(), false);
// sequencer_off is idempotent
sequencer_off();
EXPECT_EQ(is_sequencer_on(), false);
}
TEST_F(SequencerTest, TestToggle) {
sequencer_config.enabled = false;
sequencer_toggle();
EXPECT_EQ(is_sequencer_on(), true);
sequencer_toggle();
EXPECT_EQ(is_sequencer_on(), false);
}
TEST_F(SequencerTest, TestNoActiveTrackByDefault) {
for (int i = 0; i < SEQUENCER_TRACKS; i++) {
EXPECT_EQ(is_sequencer_track_active(i), false);
}
}
TEST_F(SequencerTest, TestGetActiveTracks) {
sequencer_internal_state.active_tracks = (1 << 7) + (1 << 6) + (1 << 3) + (1 << 1) + (1 << 0);
EXPECT_EQ(is_sequencer_track_active(0), true);
EXPECT_EQ(is_sequencer_track_active(1), true);
EXPECT_EQ(is_sequencer_track_active(2), false);
EXPECT_EQ(is_sequencer_track_active(3), true);
EXPECT_EQ(is_sequencer_track_active(4), false);
EXPECT_EQ(is_sequencer_track_active(5), false);
EXPECT_EQ(is_sequencer_track_active(6), true);
EXPECT_EQ(is_sequencer_track_active(7), true);
}
TEST_F(SequencerTest, TestGetActiveTracksOutOfBound) {
sequencer_set_track_activation(-1, true);
sequencer_set_track_activation(8, true);
EXPECT_EQ(is_sequencer_track_active(-1), false);
EXPECT_EQ(is_sequencer_track_active(8), false);
}
TEST_F(SequencerTest, TestToggleTrackActivation) {
sequencer_internal_state.active_tracks = (1 << 7) + (1 << 6) + (1 << 3) + (1 << 1) + (1 << 0);
sequencer_toggle_track_activation(6);
EXPECT_EQ(is_sequencer_track_active(0), true);
EXPECT_EQ(is_sequencer_track_active(1), true);
EXPECT_EQ(is_sequencer_track_active(2), false);
EXPECT_EQ(is_sequencer_track_active(3), true);
EXPECT_EQ(is_sequencer_track_active(4), false);
EXPECT_EQ(is_sequencer_track_active(5), false);
EXPECT_EQ(is_sequencer_track_active(6), false);
EXPECT_EQ(is_sequencer_track_active(7), true);
}
TEST_F(SequencerTest, TestToggleSingleTrackActivation) {
sequencer_internal_state.active_tracks = (1 << 7) + (1 << 6) + (1 << 3) + (1 << 1) + (1 << 0);
sequencer_toggle_single_active_track(2);
EXPECT_EQ(is_sequencer_track_active(0), false);
EXPECT_EQ(is_sequencer_track_active(1), false);
EXPECT_EQ(is_sequencer_track_active(2), true);
EXPECT_EQ(is_sequencer_track_active(3), false);
EXPECT_EQ(is_sequencer_track_active(4), false);
EXPECT_EQ(is_sequencer_track_active(5), false);
EXPECT_EQ(is_sequencer_track_active(6), false);
EXPECT_EQ(is_sequencer_track_active(7), false);
}
TEST_F(SequencerTest, TestStepOffByDefault) {
for (int i = 0; i < SEQUENCER_STEPS; i++) {
EXPECT_EQ(is_sequencer_step_on(i), false);
}
}
TEST_F(SequencerTest, TestIsStepOffWithNoActiveTracks) {
sequencer_config.steps[3] = 0xFF;
EXPECT_EQ(is_sequencer_step_on(3), false);
}
TEST_F(SequencerTest, TestIsStepOffWithGivenActiveTracks) {
sequencer_set_track_activation(2, true);
sequencer_set_track_activation(3, true);
sequencer_config.steps[3] = (1 << 0) + (1 << 1);
// No active tracks have the step enabled, so it is off
EXPECT_EQ(is_sequencer_step_on(3), false);
}
TEST_F(SequencerTest, TestIsStepOnWithGivenActiveTracks) {
sequencer_set_track_activation(2, true);
sequencer_set_track_activation(3, true);
sequencer_config.steps[3] = (1 << 2);
// Track 2 has the step enabled, so it is on
EXPECT_EQ(is_sequencer_step_on(3), true);
}
TEST_F(SequencerTest, TestIsStepOffForGivenTrack) {
sequencer_config.steps[3] = 0x00;
EXPECT_EQ(is_sequencer_step_on_for_track(3, 5), false);
}
TEST_F(SequencerTest, TestIsStepOnForGivenTrack) {
sequencer_config.steps[3] = (1 << 5);
EXPECT_EQ(is_sequencer_step_on_for_track(3, 5), true);
}
TEST_F(SequencerTest, TestSetStepOn) {
sequencer_internal_state.active_tracks = (1 << 6) + (1 << 3) + (1 << 2);
sequencer_config.steps[2] = (1 << 5) + (1 << 2);
sequencer_set_step(2, true);
EXPECT_EQ(sequencer_config.steps[2], (1 << 6) + (1 << 5) + (1 << 3) + (1 << 2));
}
TEST_F(SequencerTest, TestSetStepOff) {
sequencer_internal_state.active_tracks = (1 << 6) + (1 << 3) + (1 << 2);
sequencer_config.steps[2] = (1 << 5) + (1 << 2);
sequencer_set_step(2, false);
EXPECT_EQ(sequencer_config.steps[2], (1 << 5));
}
TEST_F(SequencerTest, TestToggleStepOff) {
sequencer_internal_state.active_tracks = (1 << 6) + (1 << 3) + (1 << 2);
sequencer_config.steps[2] = (1 << 5) + (1 << 2);
sequencer_toggle_step(2);
EXPECT_EQ(sequencer_config.steps[2], (1 << 5));
}
TEST_F(SequencerTest, TestToggleStepOn) {
sequencer_internal_state.active_tracks = (1 << 6) + (1 << 3) + (1 << 2);
sequencer_config.steps[2] = 0;
sequencer_toggle_step(2);
EXPECT_EQ(sequencer_config.steps[2], (1 << 6) + (1 << 3) + (1 << 2));
}
TEST_F(SequencerTest, TestSetAllStepsOn) {
sequencer_internal_state.active_tracks = (1 << 6) + (1 << 3) + (1 << 2);
sequencer_config.steps[2] = (1 << 7) + (1 << 6);
sequencer_config.steps[4] = (1 << 3) + (1 << 1);
sequencer_set_all_steps(true);
EXPECT_EQ(sequencer_config.steps[2], (1 << 7) + (1 << 6) + (1 << 3) + (1 << 2));
EXPECT_EQ(sequencer_config.steps[4], (1 << 6) + (1 << 3) + (1 << 2) + (1 << 1));
}
TEST_F(SequencerTest, TestSetAllStepsOff) {
sequencer_internal_state.active_tracks = (1 << 6) + (1 << 3) + (1 << 2);
sequencer_config.steps[2] = (1 << 7) + (1 << 6);
sequencer_config.steps[4] = (1 << 3) + (1 << 1);
sequencer_set_all_steps(false);
EXPECT_EQ(sequencer_config.steps[2], (1 << 7));
EXPECT_EQ(sequencer_config.steps[4], (1 << 1));
}
TEST_F(SequencerTest, TestSetTempoZero) {
sequencer_config.tempo = 123;
sequencer_set_tempo(0);
EXPECT_EQ(sequencer_config.tempo, 123);
}
TEST_F(SequencerTest, TestIncreaseTempoMax) {
sequencer_config.tempo = UINT8_MAX;
sequencer_increase_tempo();
EXPECT_EQ(sequencer_config.tempo, UINT8_MAX);
}
TEST_F(SequencerTest, TestSetResolutionLowerBound) {
sequencer_config.resolution = SQ_RES_4;
sequencer_set_resolution((sequencer_resolution_t)-1);
EXPECT_EQ(sequencer_config.resolution, SQ_RES_4);
}
TEST_F(SequencerTest, TestSetResolutionUpperBound) {
sequencer_config.resolution = SQ_RES_4;
sequencer_set_resolution(SEQUENCER_RESOLUTIONS);
EXPECT_EQ(sequencer_config.resolution, SQ_RES_4);
}
TEST_F(SequencerTest, TestGetBeatDuration) {
EXPECT_EQ(get_beat_duration(60), 1000);
EXPECT_EQ(get_beat_duration(120), 500);
EXPECT_EQ(get_beat_duration(240), 250);
EXPECT_EQ(get_beat_duration(0), 1000);
}
TEST_F(SequencerTest, TestGetStepDuration60) {
/**
* Resolution cheatsheet:
* 1/2 => 2 steps per 4 beats
* 1/2T => 3 steps per 4 beats
* 1/4 => 4 steps per 4 beats
* 1/4T => 6 steps per 4 beats
* 1/8 => 8 steps per 4 beats
* 1/8T => 12 steps per 4 beats
* 1/16 => 16 steps per 4 beats
* 1/16T => 24 steps per 4 beats
* 1/32 => 32 steps per 4 beats
*
* The number of steps for binary resolutions follows the powers of 2.
* The ternary variants are simply 1.5x faster.
*/
EXPECT_EQ(get_step_duration(60, SQ_RES_2), 2000);
EXPECT_EQ(get_step_duration(60, SQ_RES_4), 1000);
EXPECT_EQ(get_step_duration(60, SQ_RES_8), 500);
EXPECT_EQ(get_step_duration(60, SQ_RES_16), 250);
EXPECT_EQ(get_step_duration(60, SQ_RES_32), 125);
EXPECT_EQ(get_step_duration(60, SQ_RES_2T), 1333);
EXPECT_EQ(get_step_duration(60, SQ_RES_4T), 666);
EXPECT_EQ(get_step_duration(60, SQ_RES_8T), 333);
EXPECT_EQ(get_step_duration(60, SQ_RES_16T), 166);
}
TEST_F(SequencerTest, TestGetStepDuration120) {
/**
* Resolution cheatsheet:
* 1/2 => 2 steps per 4 beats
* 1/2T => 3 steps per 4 beats
* 1/4 => 4 steps per 4 beats
* 1/4T => 6 steps per 4 beats
* 1/8 => 8 steps per 4 beats
* 1/8T => 12 steps per 4 beats
* 1/16 => 16 steps per 4 beats
* 1/16T => 24 steps per 4 beats
* 1/32 => 32 steps per 4 beats
*
* The number of steps for binary resolutions follows the powers of 2.
* The ternary variants are simply 1.5x faster.
*/
EXPECT_EQ(get_step_duration(30, SQ_RES_2), 4000);
EXPECT_EQ(get_step_duration(30, SQ_RES_4), 2000);
EXPECT_EQ(get_step_duration(30, SQ_RES_8), 1000);
EXPECT_EQ(get_step_duration(30, SQ_RES_16), 500);
EXPECT_EQ(get_step_duration(30, SQ_RES_32), 250);
EXPECT_EQ(get_step_duration(30, SQ_RES_2T), 2666);
EXPECT_EQ(get_step_duration(30, SQ_RES_4T), 1333);
EXPECT_EQ(get_step_duration(30, SQ_RES_8T), 666);
EXPECT_EQ(get_step_duration(30, SQ_RES_16T), 333);
}
void setUpMatrixScanSequencerTest(void) {
sequencer_config.enabled = true;
sequencer_config.tempo = 120;
sequencer_config.resolution = SQ_RES_16;
// Configure the notes for each track
sequencer_config.track_notes[0] = MI_C;
sequencer_config.track_notes[1] = MI_D;
sequencer_config.track_notes[2] = MI_E;
sequencer_config.track_notes[3] = MI_F;
sequencer_config.track_notes[4] = MI_G;
sequencer_config.track_notes[5] = MI_A;
sequencer_config.track_notes[6] = MI_B;
sequencer_config.track_notes[7] = MI_C;
// Turn on some steps
sequencer_config.steps[0] = (1 << 0);
sequencer_config.steps[2] = (1 << 1) + (1 << 0);
}
TEST_F(SequencerTest, TestMatrixScanSequencerShouldAttackFirstTrackOfFirstStep) {
setUpMatrixScanSequencerTest();
sequencer_task();
EXPECT_EQ(last_noteon, MI_C);
EXPECT_EQ(last_noteoff, 0);
}
TEST_F(SequencerTest, TestMatrixScanSequencerShouldAttackSecondTrackAfterFirstTrackOfFirstStep) {
setUpMatrixScanSequencerTest();
sequencer_task();
EXPECT_EQ(sequencer_internal_state.current_step, 0);
EXPECT_EQ(sequencer_internal_state.current_track, 1);
EXPECT_EQ(sequencer_internal_state.phase, SEQUENCER_PHASE_ATTACK);
}
TEST_F(SequencerTest, TestMatrixScanSequencerShouldNotAttackInactiveTrackFirstStep) {
setUpMatrixScanSequencerTest();
sequencer_internal_state.current_step = 0;
sequencer_internal_state.current_track = 1;
// Wait some time after the first track has been attacked
advance_time(SEQUENCER_TRACK_THROTTLE);
sequencer_task();
EXPECT_EQ(last_noteon, 0);
EXPECT_EQ(last_noteoff, 0);
}
TEST_F(SequencerTest, TestMatrixScanSequencerShouldAttackThirdTrackAfterSecondTrackOfFirstStep) {
setUpMatrixScanSequencerTest();
sequencer_internal_state.current_step = 0;
sequencer_internal_state.current_track = 1;
// Wait some time after the second track has been attacked
advance_time(2 * SEQUENCER_TRACK_THROTTLE);
sequencer_task();
EXPECT_EQ(sequencer_internal_state.current_step, 0);
EXPECT_EQ(sequencer_internal_state.current_track, 2);
EXPECT_EQ(sequencer_internal_state.phase, SEQUENCER_PHASE_ATTACK);
}
TEST_F(SequencerTest, TestMatrixScanSequencerShouldEnterReleasePhaseAfterLastTrackHasBeenProcessedFirstStep) {
setUpMatrixScanSequencerTest();
sequencer_internal_state.current_step = 0;
sequencer_internal_state.current_track = SEQUENCER_TRACKS - 1;
// Wait until all notes have been attacked
advance_time((SEQUENCER_TRACKS - 1) * SEQUENCER_TRACK_THROTTLE);
sequencer_task();
EXPECT_EQ(last_noteon, 0);
EXPECT_EQ(last_noteoff, 0);
EXPECT_EQ(sequencer_internal_state.current_step, 0);
EXPECT_EQ(sequencer_internal_state.current_track, SEQUENCER_TRACKS - 1);
EXPECT_EQ(sequencer_internal_state.phase, SEQUENCER_PHASE_RELEASE);
}
TEST_F(SequencerTest, TestMatrixScanSequencerShouldReleaseBackwards) {
setUpMatrixScanSequencerTest();
sequencer_internal_state.current_step = 0;
sequencer_internal_state.current_track = SEQUENCER_TRACKS - 1;
sequencer_internal_state.phase = SEQUENCER_PHASE_RELEASE;
// Wait until all notes have been attacked
advance_time((SEQUENCER_TRACKS - 1) * SEQUENCER_TRACK_THROTTLE);
// + the release timeout
advance_time(SEQUENCER_PHASE_RELEASE_TIMEOUT);
sequencer_task();
EXPECT_EQ(sequencer_internal_state.current_step, 0);
EXPECT_EQ(sequencer_internal_state.current_track, SEQUENCER_TRACKS - 2);
EXPECT_EQ(sequencer_internal_state.phase, SEQUENCER_PHASE_RELEASE);
}
TEST_F(SequencerTest, TestMatrixScanSequencerShouldNotReleaseInactiveTrackFirstStep) {
setUpMatrixScanSequencerTest();
sequencer_internal_state.current_step = 0;
sequencer_internal_state.current_track = SEQUENCER_TRACKS - 1;
sequencer_internal_state.phase = SEQUENCER_PHASE_RELEASE;
// Wait until all notes have been attacked
advance_time((SEQUENCER_TRACKS - 1) * SEQUENCER_TRACK_THROTTLE);
// + the release timeout
advance_time(SEQUENCER_PHASE_RELEASE_TIMEOUT);
sequencer_task();
EXPECT_EQ(last_noteon, 0);
EXPECT_EQ(last_noteoff, 0);
}
TEST_F(SequencerTest, TestMatrixScanSequencerShouldReleaseFirstTrackFirstStep) {
setUpMatrixScanSequencerTest();
sequencer_internal_state.current_step = 0;
sequencer_internal_state.current_track = 0;
sequencer_internal_state.phase = SEQUENCER_PHASE_RELEASE;
// Wait until all notes have been attacked
advance_time((SEQUENCER_TRACKS - 1) * SEQUENCER_TRACK_THROTTLE);
// + the release timeout
advance_time(SEQUENCER_PHASE_RELEASE_TIMEOUT);
// + all the other notes have been released
advance_time((SEQUENCER_TRACKS - 1) * SEQUENCER_TRACK_THROTTLE);
sequencer_task();
EXPECT_EQ(last_noteon, 0);
EXPECT_EQ(last_noteoff, MI_C);
}
TEST_F(SequencerTest, TestMatrixScanSequencerShouldEnterPausePhaseAfterRelease) {
setUpMatrixScanSequencerTest();
sequencer_internal_state.current_step = 0;
sequencer_internal_state.current_track = 0;
sequencer_internal_state.phase = SEQUENCER_PHASE_RELEASE;
// Wait until all notes have been attacked
advance_time((SEQUENCER_TRACKS - 1) * SEQUENCER_TRACK_THROTTLE);
// + the release timeout
advance_time(SEQUENCER_PHASE_RELEASE_TIMEOUT);
// + all the other notes have been released
advance_time((SEQUENCER_TRACKS - 1) * SEQUENCER_TRACK_THROTTLE);
sequencer_task();
EXPECT_EQ(sequencer_internal_state.current_step, 0);
EXPECT_EQ(sequencer_internal_state.current_track, 0);
EXPECT_EQ(sequencer_internal_state.phase, SEQUENCER_PHASE_PAUSE);
}
TEST_F(SequencerTest, TestMatrixScanSequencerShouldProcessFirstTrackOfSecondStepAfterPause) {
setUpMatrixScanSequencerTest();
sequencer_internal_state.current_step = 0;
sequencer_internal_state.current_track = 0;
sequencer_internal_state.phase = SEQUENCER_PHASE_PAUSE;
// Wait until all notes have been attacked
advance_time((SEQUENCER_TRACKS - 1) * SEQUENCER_TRACK_THROTTLE);
// + the release timeout
advance_time(SEQUENCER_PHASE_RELEASE_TIMEOUT);
// + all the other notes have been released
advance_time((SEQUENCER_TRACKS - 1) * SEQUENCER_TRACK_THROTTLE);
// + the step duration (one 16th at tempo=120 lasts 125ms)
advance_time(125);
sequencer_task();
EXPECT_EQ(sequencer_internal_state.current_step, 1);
EXPECT_EQ(sequencer_internal_state.current_track, 1);
EXPECT_EQ(sequencer_internal_state.phase, SEQUENCER_PHASE_ATTACK);
}
TEST_F(SequencerTest, TestMatrixScanSequencerShouldProcessSecondTrackTooEarly) {
setUpMatrixScanSequencerTest();
sequencer_internal_state.current_step = 2;
sequencer_internal_state.current_track = 1;
sequencer_task();
EXPECT_EQ(last_noteon, 0);
EXPECT_EQ(last_noteoff, 0);
}
TEST_F(SequencerTest, TestMatrixScanSequencerShouldProcessSecondTrackOnTime) {
setUpMatrixScanSequencerTest();
sequencer_internal_state.current_step = 2;
sequencer_internal_state.current_track = 1;
// Wait until first track has been attacked
advance_time(SEQUENCER_TRACK_THROTTLE);
sequencer_task();
EXPECT_EQ(last_noteon, MI_D);
EXPECT_EQ(last_noteoff, 0);
}
TEST_F(SequencerTest, TestMatrixScanSequencerShouldLoopOnceSequenceIsOver) {
setUpMatrixScanSequencerTest();
sequencer_internal_state.current_step = SEQUENCER_STEPS - 1;
sequencer_internal_state.current_track = 0;
sequencer_internal_state.phase = SEQUENCER_PHASE_PAUSE;
// Wait until all notes have been attacked
advance_time((SEQUENCER_TRACKS - 1) * SEQUENCER_TRACK_THROTTLE);
// + the release timeout
advance_time(SEQUENCER_PHASE_RELEASE_TIMEOUT);
// + all the other notes have been released
advance_time((SEQUENCER_TRACKS - 1) * SEQUENCER_TRACK_THROTTLE);
// + the step duration (one 16th at tempo=120 lasts 125ms)
advance_time(125);
sequencer_task();
EXPECT_EQ(sequencer_internal_state.current_step, 0);
EXPECT_EQ(sequencer_internal_state.current_track, 1);
EXPECT_EQ(sequencer_internal_state.phase, SEQUENCER_PHASE_ATTACK);
}