added unit test, updated Readme and picture

kukuc-clock.py

@@ -3,16 +3,15 @@ import sys
 import time
 from datetime import datetime
 import subprocess
-from slovak_datetime_formatter import get_datetime_as_slovak_sentence
+from lib.slovak_datetime_formatter import get_datetime_as_slovak_sentence
 
 if len(sys.argv) > 1 and sys.argv[1] == "test":
-    import dummygpio as GPIO
+    import lib.dummygpio as GPIO
 else:
     import RPi.GPIO as GPIO
 
-BUTTON_TIMEOUT = (
-    30  # button release timeout terminates playing
-)
+TTS_API_URL = "https://tts.virtonline.eu/api/tts"
+BUTTON_TIMEOUT = 30  # button release timeout terminates playing
 PIN = 27  # listen to changes on this GPIO pin
 GPIO.setmode(GPIO.BCM)  # use BCM pin layout
 GPIO.setwarnings(False)
@@ -56,11 +55,16 @@ def generate_presny_cas():
     username, password = get_credentials()
     subprocess.call(
         [
-            "curl", "--silent", "-u", f"{username}:{password}",
+            "curl",
+            "--silent",
+            "-u",
+            f"{username}:{password}",
             "--get",
-            "--data-urlencode", f"text={text}",
-            "https://tts.virtonline.eu/api/tts",
-            "--output", "presny_cas.wav",
+            "--data-urlencode",
+            f"text={text}",
+            TTS_API_URL,
+            "--output",
+            "presny_cas.wav",
         ]
     )
     print("Generated presny_cas.wav")