diff --git a/tests/integration.c b/tests/integration.c
index 90d41fd..73cdffa 100644
--- a/tests/integration.c
+++ b/tests/integration.c
@@ -105,131 +105,6 @@ static pid_t start_looper(void) {
     return pid;
 }
 
-/*
- * Send a hex MIDI message to the given port.
- */
-static int send_midi(const char *port, const char *msg) {
-    char cmd[512];
-    snprintf(cmd, sizeof(cmd),
-             "jack_midi_send -c looper:%s -m '%s' 2>/dev/null",
-             port, msg);
-    int ret = system(cmd);
-    if (ret != 0) {
-        fprintf(stderr, "jack_midi_send failed: %s\n", cmd);
-    }
-    return ret;
-}
-
-/*
- * Ask the looper to report its current state and exit.
- * Returns the state (0..3) or -1 on failure.
- */
-static int request_state_and_exit(pid_t pid) {
-    kill(pid, SIGUSR1);
-    int status;
-    if (waitpid(pid, &status, 0) != pid) {
-        perror("waitpid");
-        return -1;
-    }
-    if (WIFEXITED(status)) {
-        int code = WEXITSTATUS(status);
-        /* looper returns state+1, so state = code-1 */
-        int state = code - 1;
-        if (state >= STATE_IDLE && state <= STATE_PAUSED) {
-            return state;
-        }
-        fprintf(stderr, "Unexpected exit code %d (expected 1..4)\n", code);
-        return -1;
-    }
-    fprintf(stderr, "Looper terminated by signal %d\n", WTERMSIG(status));
-    return -1;
-}
-
-/*
- * Perform a single transition test: start looper, send @p midi_msg
- * (may be NULL for idle‑only test), then verify state equals @p expected_state.
- * Exits the whole program on failure.
- */
-static void test_transition(const char *label,
-                            const char *midi_port,
-                            const char *midi_msg,
-                            int expected_state)
-{
-    printf("Test: %s (expect state %d)\n", label, expected_state);
-    pid_t pid = start_looper();
-    if (pid < 0) {
-        fprintf(stderr, "FAIL: could not start looper\n");
-        exit(1);
-    }
-    if (midi_msg) {
-        send_midi(midi_port, midi_msg);
-        sleep(WAIT_SECONDS);
-    }
-    int got = request_state_and_exit(pid);
-    if (got == expected_state) {
-        printf("  PASS\n");
-    } else {
-        fprintf(stderr, "  FAIL: got %d, expected %d\n", got, expected_state);
-        exit(1);
-    }
-}
-
-/*
- * Test MIDI clock Start (0xFA) while idle.
- */
-static void test_clock_start(void) {
-    test_transition("clock start -> record", "clock", "FA", STATE_RECORD);
-}
-
-/*
- * Test MIDI clock Stop (0xFC) after first entering RECORD via control note.
- */
-static void test_clock_stop(void) {
-    printf("Test: clock stop after record (expect idle)\n");
-    pid_t pid = start_looper();
-    if (pid < 0) exit(1);
-    /* IDLE -> RECORD */
-    send_midi("control", "90 01 7f");
-    sleep(WAIT_SECONDS);
-    /* clock stop -> IDLE */
-    send_midi("clock", "FC");
-    sleep(WAIT_SECONDS);
-    int got = request_state_and_exit(pid);
-    if (got == STATE_IDLE) {
-        printf("  PASS\n");
-    } else {
-        fprintf(stderr, "  FAIL: got %d, expected %d\n", got, STATE_IDLE);
-        exit(1);
-    }
-}
-
-/*
- * Test MIDI clock Continue (0xFB) from PAUSED -> LOOPING.
- */
-static void test_clock_continue(void) {
-    printf("Test: clock continue from paused (expect looping)\n");
-    pid_t pid = start_looper();
-    if (pid < 0) exit(1);
-    /* IDLE -> RECORD */
-    send_midi("control", "90 01 7f");
-    sleep(WAIT_SECONDS);
-    /* RECORD -> LOOPING */
-    send_midi("control", "90 01 7f");
-    sleep(WAIT_SECONDS);
-    /* LOOPING -> PAUSED */
-    send_midi("control", "90 01 7f");
-    sleep(WAIT_SECONDS);
-    /* clock continue -> LOOPING */
-    send_midi("clock", "FB");
-    sleep(WAIT_SECONDS);
-    int got = request_state_and_exit(pid);
-    if (got == STATE_LOOPING) {
-        printf("  PASS\n");
-    } else {
-        fprintf(stderr, "  FAIL: got %d, expected %d\n", got, STATE_LOOPING);
-        exit(1);
-    }
-}
 
 static int test_audio_pass_through(void) {
     printf("Test: audio pass‑through (connectivity)\n");