123 lines
4.4 KiB
C
123 lines
4.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <signal.h>
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#include <sys/wait.h>
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#include <string.h>
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#include <stdarg.h>
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/*
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* Integration test for the JACK looper.
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*
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* 1. Start the looper binary (./looper)
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* 2. Wait for JACK ports to appear
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* 3. Send several note‑on messages (MIDI note number 1) to its 'control' port
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* using jack_midi_send, testing the state machine:
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* IDLE → RECORD → LOOPING → PAUSED → LOOPING → PAUSED (toggle)
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* 4. Send a MIDI clock Start (0xFA) to force IDLE → RECORD.
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* 5. Send a MIDI clock Stop (0xFC) to force RECORD → IDLE.
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* 6. Send a MIDI clock Continue (0xFB) to resume LOOPING from PAUSED.
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* 7. Kill the process and check that it exits cleanly.
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*/
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#define WAIT_SECONDS 1
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static int run_cmd(const char *fmt, ...) {
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char buf[512];
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(buf, sizeof(buf), fmt, ap);
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va_end(ap);
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return system(buf);
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}
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int main(void) {
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/* 1. binary must exist */
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if (system("test -x ./looper") != 0) {
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fprintf(stderr, "FATAL: looper binary not found\n");
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return 1;
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}
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/* 2. start the looper */
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pid_t pid = fork();
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if (pid < 0) {
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perror("fork");
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return 1;
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}
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if (pid == 0) {
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execl("./looper", "looper", NULL);
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perror("execl");
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_exit(1);
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}
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printf("Waiting for looper (pid %d) to register ports...\n", (int)pid);
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sleep(3); /* generous, JACK ports must be visible */
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/* check jack_midi_send availability */
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if (system("which jack_midi_send >/dev/null 2>&1") != 0) {
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fprintf(stderr, "FATAL: jack_midi_send not available (install jack‑tools)\n");
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kill(pid, SIGTERM);
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waitpid(pid, NULL, 0);
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return 1;
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}
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/* 3. send note‑on messages (toggle state machine) */
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printf("Sending first note‑on → IDLE → RECORD\n");
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run_cmd("jack_midi_send -c looper:control -m '90 01 7f' 2>/dev/null || echo 'jack_midi_send not available'");
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sleep(WAIT_SECONDS);
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printf("Sending second note‑on → RECORD → LOOPING\n");
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run_cmd("jack_midi_send -c looper:control -m '90 01 7f' 2>/dev/null || echo 'jack_midi_send not available'");
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sleep(WAIT_SECONDS);
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printf("Sending third note‑on → LOOPING → PAUSED\n");
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run_cmd("jack_midi_send -c looper:control -m '90 01 7f' 2>/dev/null || echo 'jack_midi_send not available'");
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sleep(WAIT_SECONDS);
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printf("Sending fourth note‑on → PAUSED → LOOPING\n");
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run_cmd("jack_midi_send -c looper:control -m '90 01 7f' 2>/dev/null || echo 'jack_midi_send not available'");
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sleep(WAIT_SECONDS);
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printf("Sending fifth note‑on → LOOPING → PAUSED (toggle)\n");
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run_cmd("jack_midi_send -c looper:control -m '90 01 7f' 2>/dev/null || echo 'jack_midi_send not available'");
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sleep(WAIT_SECONDS);
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/* 4. MIDI clock start (0xFA) – IDLE → RECORD */
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printf("Sending MIDI clock Start (0xFA)\n");
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run_cmd("jack_midi_send -c looper:clock -m 'FA' 2>/dev/null || echo 'jack_midi_send not available'");
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sleep(1);
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/* 5. MIDI clock stop (0xFC) – RECORD → IDLE */
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printf("Sending MIDI clock Stop (0xFC)\n");
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run_cmd("jack_midi_send -c looper:clock -m 'FC' 2>/dev/null || echo 'jack_midi_send not available'");
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sleep(1);
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/* bring back to PAUSED via control port */
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printf("Sending note‑on to reach PAUSED again\n");
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run_cmd("jack_midi_send -c looper:control -m '90 01 7f' 2>/dev/null || echo 'jack_midi_send not available'");
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sleep(1);
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run_cmd("jack_midi_send -c looper:control -m '90 01 7f' 2>/dev/null || echo 'jack_midi_send not available'");
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sleep(1);
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run_cmd("jack_midi_send -c looper:control -m '90 01 7f' 2>/dev/null || echo 'jack_midi_send not available'"); // now PAUSED
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sleep(1);
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/* 6. MIDI clock Continue (0xFB) – PAUSED → LOOPING */
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printf("Sending MIDI clock Continue (0xFB)\n");
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run_cmd("jack_midi_send -c looper:clock -m 'FB' 2>/dev/null || echo 'jack_midi_send not available'");
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sleep(1);
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/* cleanup */
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printf("Terminating looper...\n");
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kill(pid, SIGTERM);
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int status;
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waitpid(pid, &status, 0);
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if (WIFEXITED(status)) {
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printf("Looper exited with status %d\n", WEXITSTATUS(status));
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} else if (WIFSIGNALED(status)) {
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printf("Looper terminated by signal %d\n", WTERMSIG(status));
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}
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printf("Integration test finished (manual verification recommended)\n");
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return 0;
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}
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