Improve tests for backend

tests/test_backend.py

@@ -7,17 +7,28 @@ from multilang_translator.backend_controller.broadcaster_play_once import broadc
 from multilang_translator.backend_controller.broadcaster_copy_files import copy_to_broadcaster
 
 
+def test_config_broadcaster():
+    broadcaster_config()
+
 def test_copy_to_broadcaster():
     log.info("Current working directory is: " + os.getcwd())
     start = time.time()
     copy_to_broadcaster('./tests/announcement_de.lc3')
     log.info(f"Copy to broadcaster took {round(time.time() - start, 3)} seconds")
 
-def test_config_broadcaster():
-    broadcaster_config()
-    broadcaster_play_file(0, 'announcement_de.lc3')
-
-def test_play_file():
-    broadcaster_play_file(0, 'announcement_de.lc3')
+def test_play_files():
+    ret = broadcaster_play_file(0, 'announcement_de.lc3')
+    time.sleep(1)
+    ret += broadcaster_play_file(1, 'announcement_en.lc3')
+    assert "err" not in ret
+    assert "Failed" not in ret
 
+def test_copy_and_play():
+    copy_to_broadcaster('./tests/announcement_de.lc3')
+    copy_to_broadcaster('./tests/announcement_en.lc3')
 
+    ret = broadcaster_play_file(0, 'announcement_de.lc3')
+    time.sleep(1)
+    ret += broadcaster_play_file(1, 'announcement_en.lc3')
+    assert "err" not in ret
+    assert "Failed" not in ret