From 22240e51b685e815e5b30f899e603fe0f675000a Mon Sep 17 00:00:00 2001
From: David Reid <mackron@gmail.com>
Date: Sun, 12 Aug 2018 09:26:32 +1000
Subject: [PATCH] Add unplugging test.

---
 tests/mal_unplugging.c | 94 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 tests/mal_unplugging.c

diff --git a/tests/mal_unplugging.c b/tests/mal_unplugging.c
new file mode 100644
index 00000000..da77c5a5
--- /dev/null
+++ b/tests/mal_unplugging.c
@@ -0,0 +1,94 @@
+// This test just plays a constant sine wave tone. Mainly intended to check how physically
+// unplugging a device while it's playing works.
+#define MINI_AL_IMPLEMENTATION
+#include "../mini_al.h"
+#include <stdio.h>
+
+mal_sine_wave g_sineWave;
+mal_event g_stopEvent;
+
+void on_log(mal_context* pContext, mal_device* pDevice, const char* message)
+{
+    (void)pContext;
+    (void)pDevice;
+    printf("%s\n", message);
+}
+
+void on_stop(mal_device* pDevice)
+{
+    (void)pDevice;
+    printf("STOPPED\n");
+    mal_event_signal(&g_stopEvent);
+}
+
+mal_uint32 on_send(mal_device* pDevice, mal_uint32 frameCount, void* pFramesOut)
+{
+    mal_assert(pDevice != NULL);
+    mal_assert(pDevice->channels == 1);
+    (void)pDevice;
+
+    //printf("TESTING: %d\n", frameCount);
+    return (mal_uint32)mal_sine_wave_read(&g_sineWave, frameCount, (float*)pFramesOut);
+}
+
+int main()
+{
+    mal_backend backend = mal_backend_alsa;
+
+    mal_result result = mal_sine_wave_init(0.25f, 400, 48000, &g_sineWave);
+    if (result != MAL_SUCCESS) {
+        printf("Failed to initialize sine wave.\n");
+        return -1;
+    }
+
+    mal_context_config contextConfig = mal_context_config_init(on_log);
+    mal_device_config deviceConfig = mal_device_config_init_playback(mal_format_f32, 1, 48000, on_send);
+    deviceConfig.onStopCallback = on_stop;
+
+    mal_device device;
+    result = mal_device_init_ex(&backend, 1, &contextConfig, mal_device_type_playback, NULL, &deviceConfig, NULL, &device);
+    if (result != MAL_SUCCESS) {
+        return result;
+    }
+
+    mal_event_init(device.pContext, &g_stopEvent);
+
+    result = mal_device_start(&device);
+    if (result != MAL_SUCCESS) {
+        mal_device_uninit(&device);
+        return result;
+    }
+
+
+    printf("Unplug the device...\n");
+    mal_event_wait(&g_stopEvent);
+
+    printf("Plug in the device and hit Enter to attempt to restart the device...\n");
+    getchar();
+
+    // To restart the device, first try mal_device_start(). If it fails, re-initialize from the top.
+    result = mal_device_start(&device);
+    if (result != MAL_SUCCESS) {
+        printf("Failed to restart. Attempting to reinitialize...\n");
+        mal_device_uninit(&device);
+        
+        result = mal_device_init_ex(&backend, 1, &contextConfig, mal_device_type_playback, NULL, &deviceConfig, NULL, &device);
+        if (result != MAL_SUCCESS) {
+            printf("Failed to reinitialize.\n");
+            return -1;
+        }
+
+        result = mal_device_start(&device);
+        if (result != MAL_SUCCESS) {
+            printf("Failed to start device.\n");
+            mal_device_uninit(&device);
+            return -1;
+        }
+    }
+
+    printf("Press Enter to quit...");
+    getchar();
+
+    mal_device_uninit(&device);
+    return 0;
+}
\ No newline at end of file