From 74b68eb378abdddcca040866fb996015e7c83844 Mon Sep 17 00:00:00 2001
From: Loic Coenen <loic@visua.com>
Date: Thu, 7 May 2026 22:20:31 +0000
Subject: [PATCH] fix: enable continuous sine tone in audio pass-through test

Co-authored-by: aider (deepseek/deepseek-reasoner) <aider@aider.chat>
---
 tests/integration.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/tests/integration.c b/tests/integration.c
index fcc4808..80507b9 100644
--- a/tests/integration.c
+++ b/tests/integration.c
@@ -23,6 +23,7 @@ static volatile int passthrough_done = 0;
 static volatile int beep_remaining = 0;
 static volatile int bursts = 0;
 static volatile int prev_above = 0;
+static int continuous_sine = 0;
 
 /* variables for MIDI injection (used by send_jack_note_on) */
 static volatile int midi_inject_pending = 0;
@@ -61,14 +62,14 @@ static int passthrough_process(jack_nframes_t nframes, void *arg) {
     float *outf = out;
     const float *inf = in;
     for (jack_nframes_t i = 0; i < nframes; i++) {
-        /* generate beep while beep_remaining > 0 */
+        /* generate beep while beep_remaining > 0 or continuous sine */
         float out_val;
-        if (beep_remaining > 0) {
+        if (continuous_sine || beep_remaining > 0) {
             out_val = sinf(passthrough_phase);
             passthrough_phase += 2.0f * (float)M_PI * passthrough_freq / passthrough_sample_rate;
             if (passthrough_phase > 2.0f * M_PI)
                 passthrough_phase -= 2.0f * M_PI;
-            beep_remaining--;
+            if (beep_remaining > 0) beep_remaining--;
         } else {
             out_val = 0.0f;
         }
@@ -183,6 +184,8 @@ static int test_audio_pass_through(void) {
     passthrough_total_samples = 0;
     passthrough_sum_sq = 0.0;
     passthrough_done = 0;
+    continuous_sine = 1;          /* enable continuous tone for this test */
+    beep_remaining = 0;           /* not needed */
     jack_set_process_callback(client, passthrough_process, NULL);
     if (jack_activate(client) != 0) {
         fprintf(stderr, "  FAIL: cannot activate client\n");
@@ -309,6 +312,7 @@ static int test_looper_looping(void) {
     usleep(200000);               /* allow state to change */
 
     int sr = jack_get_sample_rate(client);
+    continuous_sine = 0;          /* disable continuous tone */
     beep_remaining = (int)(0.1f * sr);   /* 0.1 second beep */
     bursts = 0;
     prev_above = 0;