1 files changed, 34 insertions, 3 deletions
diff --git a/test/common.h b/test/common.h
index 47cc28c..051f3c4 100644
--- a/test/common.h
+++ b/test/common.h
@@ -17,10 +17,10 @@
 void delay(unsigned int ms)
 {
 #if defined(_WIN32)
-	Sleep(ms);
+  Sleep(ms);
 #else
-	sleep(ms / 1000);
-	usleep(ms % 1000 * 1000);
+  sleep(ms / 1000);
+  usleep(ms % 1000 * 1000);
 #endif
 }
 
@@ -28,3 +28,34 @@ void delay(unsigned int ms)
 #define M_PI 3.14159265358979323846
 #endif
 
+int has_available_input_device(cubeb * ctx)
+{
+  cubeb_device_collection * devices;
+  int input_device_available = 0;
+  int r;
+  /* Bail out early if the host does not have input devices. */
+  r = cubeb_enumerate_devices(ctx, CUBEB_DEVICE_TYPE_INPUT, &devices);
+  if (r != CUBEB_OK) {
+    fprintf(stderr, "error enumerating devices.");
+    return 0;
+  }
+
+  if (devices->count == 0) {
+    fprintf(stderr, "no input device available, skipping test.\n");
+    return 0;
+  }
+
+  for (uint32_t i = 0; i < devices->count; i++) {
+    input_device_available |= (devices->device[i]->state ==
+                               CUBEB_DEVICE_STATE_ENABLED);
+  }
+
+  if (!input_device_available) {
+    fprintf(stderr, "there are input devices, but they are not "
+        "available, skipping\n");
+    return 0;
+  }
+
+  return 1;
+}
+