Better console messages for the test script (also rename it)

Change-Id: I20af4f4d82287459d7283ab9fc7dbaaf910c51a1
diff --git a/check.py b/test.py
similarity index 75%
rename from check.py
rename to test.py
index a873687..a0943de 100644
--- a/check.py
+++ b/test.py
@@ -18,16 +18,17 @@
 import vision
 
 def usb_accelerator_connected():
-  if subprocess.run(["lsusb", "-d", "18d1:9302"]).returncode == 0:
+  if subprocess.run(["lsusb", "-d", "18d1:9302"], capture_output=True).returncode == 0:
     return True
-  if subprocess.run(["lsusb", "-d", "1a6e:089a"]).returncode == 0:
+  if subprocess.run(["lsusb", "-d", "1a6e:089a"], capture_output=True).returncode == 0:
     return True
   return False
 
 if __name__ == '__main__':
   if not usb_accelerator_connected():
-    print('Coral USB accelerator is not connected :(')
+    print('Coral USB Accelerator NOT found! :(')
     sys.exit(1)
-
+  
+  print('Coral USB Accelerator found.')
   for frame in vision.get_frames():
     pass
diff --git a/vision.py b/vision.py
index 8469a79..d0f1edb 100644
--- a/vision.py
+++ b/vision.py
@@ -81,6 +81,7 @@
     cap = cv2.VideoCapture(0)
     success, _ = cap.read()
     if success:
+      print("Camera started successfully.")
       break
 
     if attempts == 0: