diff --git a/core/const.py b/core/const.py
new file mode 100644
index 0000000..03f7f69
--- /dev/null
+++ b/core/const.py
@@ -0,0 +1,8 @@
+import logzero
+
+_log_format = ("%(color)s%(levelname)s:%(end_color)s %(message)s")
+formatter = logzero.LogFormatter(fmt=_log_format)
+
+# options
+log = logzero.setup_logger(formatter=formatter)
+args = None
diff --git a/core/convert.py b/core/convert.py
index 5f830a3..d93dbc1 100644
--- a/core/convert.py
+++ b/core/convert.py
@@ -1,6 +1,6 @@
 import subprocess
 import os
-from core.logger import log
+from core.const import log
 
 
 """What are the differences and similarities between ffmpeg, libav, and avconv?
diff --git a/core/arguments.py b/core/handle.py
similarity index 62%
rename from core/arguments.py
rename to core/handle.py
index a4d11d2..d0d751f 100644
--- a/core/arguments.py
+++ b/core/handle.py
@@ -1,27 +1,38 @@
+import logging
 import argparse
 import os
 import sys
 
-from core.logger import log_leveller, _LOG_LEVELS_STR
+
+_LOG_LEVELS_STR = ['INFO', 'WARNING', 'ERROR', 'DEBUG']
+
+def log_leveller(log_level_str):
+    loggin_levels = [logging.INFO, logging.WARNING, logging.ERROR, logging.DEBUG]
+    log_level_str_index = _LOG_LEVELS_STR.index(log_level_str)
+    loggin_level = loggin_levels[log_level_str_index]
+    return loggin_level
 
 
-def get_arguments():
+def get_arguments(to_group=False, raw_args=None):
     parser = argparse.ArgumentParser(
         description='Download and convert songs from Spotify, Youtube etc.',
         formatter_class=argparse.ArgumentDefaultsHelpFormatter)
-    group = parser.add_mutually_exclusive_group(required=True)
 
-    group.add_argument(
-        '-s', '--song', help='download song by spotify link or name')
-    group.add_argument(
-        '-l', '--list', help='download songs from a file')
-    group.add_argument(
-        '-p', '--playlist', help='load songs from playlist URL into <playlist_name>.txt')
-    group.add_argument(
-        '-b', '--album', help='load songs from album URL into <album_name>.txt')
-    group.add_argument(
-        '-u', '--username',
-        help="load songs from user's playlist into <playlist_name>.txt")
+    if to_group:
+        group = parser.add_mutually_exclusive_group(required=True)
+
+        group.add_argument(
+            '-s', '--song', help='download song by spotify link or name')
+        group.add_argument(
+            '-l', '--list', help='download songs from a file')
+        group.add_argument(
+            '-p', '--playlist', help='load songs from playlist URL into <playlist_name>.txt')
+        group.add_argument(
+            '-b', '--album', help='load songs from album URL into <album_name>.txt')
+        group.add_argument(
+            '-u', '--username',
+            help="load songs from user's playlist into <playlist_name>.txt")
+
     parser.add_argument(
         '-m', '--manual', default=False,
         help='choose the song to download manually', action='store_true')
@@ -59,10 +70,7 @@ def get_arguments():
         type=str.upper,
         help='set log verbosity')
 
-    parsed = parser.parse_args()
+    parsed = parser.parse_args(raw_args)
     parsed.log_level = log_leveller(parsed.log_level)
 
     return parsed
-
-
-parsed = get_arguments()
diff --git a/core/internals.py b/core/internals.py
index 7dacaab..ca7f6ed 100755
--- a/core/internals.py
+++ b/core/internals.py
@@ -1,5 +1,5 @@
 from slugify import SLUG_OK, slugify
-from core.logger import log
+from core.const import log
 
 import os
 
diff --git a/core/logger.py b/core/logger.py
deleted file mode 100644
index 558e0a2..0000000
--- a/core/logger.py
+++ /dev/null
@@ -1,16 +0,0 @@
-import logzero
-import logging
-
-_LOG_LEVELS_STR = ['INFO', 'WARNING', 'ERROR', 'DEBUG']
-
-def log_leveller(log_level_str):
-    loggin_levels = [logging.INFO, logging.WARNING, logging.ERROR, logging.DEBUG]
-    log_level_str_index = _LOG_LEVELS_STR.index(log_level_str)
-    loggin_level = loggin_levels[log_level_str_index]
-    return loggin_level
-
-
-log_format = ("%(color)s%(levelname)s:%(end_color)s %(message)s")
-formatter = logzero.LogFormatter(fmt=log_format)
-# create a default logger
-log = logzero.setup_logger(formatter=formatter)
diff --git a/core/metadata.py b/core/metadata.py
index 829fea6..2e93f8b 100755
--- a/core/metadata.py
+++ b/core/metadata.py
@@ -1,7 +1,7 @@
 from mutagen.easyid3 import EasyID3
 from mutagen.id3 import ID3, APIC
 from mutagen.mp4 import MP4, MP4Cover
-from core.logger import log
+from core.const import log
 
 import urllib.request
 
diff --git a/core/spotify_tools.py b/core/spotify_tools.py
index 0e0151a..5d4d9e5 100644
--- a/core/spotify_tools.py
+++ b/core/spotify_tools.py
@@ -4,9 +4,7 @@ from titlecase import titlecase
 import pprint
 
 from core import internals
-from core import logger
-
-log = logger.log
+from core.const import log
 
 
 def generate_token():
diff --git a/core/youtube_tools.py b/core/youtube_tools.py
index afe7d30..70798a3 100644
--- a/core/youtube_tools.py
+++ b/core/youtube_tools.py
@@ -1,13 +1,12 @@
 import pafy
 
 from core import internals
-from core import arguments
-from core.logger import log
+from core import const
 
 import os
 import pprint
 
-args = arguments.parsed
+log = const.log
 
 
 def go_pafy(raw_song, meta_tags=None):
@@ -36,15 +35,15 @@ def get_youtube_title(content, number=None):
 
 def download_song(file_name, content):
     """ Download the audio file from YouTube. """
-    if args.input_ext in (".webm", ".m4a"):
-        link = content.getbestaudio(preftype=args.input_ext[1:])
+    if const.args.input_ext in (".webm", ".m4a"):
+        link = content.getbestaudio(preftype=const.args.input_ext[1:])
     else:
         return False
 
     if link:
         log.debug('Downloading from URL: ' + link.url)
-        filepath = '{0}{1}'.format(os.path.join(args.folder, file_name),
-                                   args.input_ext)
+        filepath = '{0}{1}'.format(os.path.join(const.args.folder, file_name),
+                                   const.args.input_ext)
         log.debug('Saving to: ' + filepath)
         link.download(filepath=filepath)
         return True
@@ -63,7 +62,7 @@ def generate_youtube_url(raw_song, meta_tags, tries_remaining=5):
               'maxResults' :  50,
               'type'       : 'video' }
 
-    if args.music_videos_only:
+    if const.args.music_videos_only:
         query['videoCategoryId'] = '10'
 
     if not meta_tags:
@@ -97,7 +96,7 @@ def generate_youtube_url(raw_song, meta_tags, tries_remaining=5):
 
     log.debug(pprint.pformat(videos))
 
-    if args.manual:
+    if const.args.manual:
         log.info(song)
         log.info('0. Skip downloading this song.\n')
         # fetch all video links on first page on YouTube
diff --git a/spotdl.py b/spotdl.py
index 905d243..d47ef67 100755
--- a/spotdl.py
+++ b/spotdl.py
@@ -1,13 +1,13 @@
 #!/usr/bin/env python3
 # -*- coding: UTF-8 -*-
 
-from core import logger
+from core import const
+from core import handle
 from core import metadata
 from core import convert
 from core import internals
 from core import spotify_tools
 from core import youtube_tools
-from core import arguments
 from slugify import slugify
 import spotipy
 import pafy
@@ -24,10 +24,10 @@ def check_exists(music_file, raw_song, meta_tags):
     """ Check if the input song already exists in the given folder. """
     log.debug('Cleaning any temp files and checking '
               'if "{}" already exists'.format(music_file))
-    songs = os.listdir(args.folder)
+    songs = os.listdir(const.args.folder)
     for song in songs:
         if song.endswith('.temp'):
-            os.remove(os.path.join(args.folder, song))
+            os.remove(os.path.join(const.args.folder, song))
             continue
         # check if any song with similar name is already present in the given folder
         file_name = internals.sanitize_title(music_file)
@@ -36,29 +36,29 @@ def check_exists(music_file, raw_song, meta_tags):
             if internals.is_spotify(raw_song):
                 # check if the already downloaded song has correct metadata
                 # if not, remove it and download again without prompt
-                already_tagged = metadata.compare(os.path.join(args.folder, song),
+                already_tagged = metadata.compare(os.path.join(const.args.folder, song),
                                                   meta_tags)
                 log.debug('Checking if it is already tagged correctly? {}',
                                                             already_tagged)
                 if not already_tagged:
-                    os.remove(os.path.join(args.folder, song))
+                    os.remove(os.path.join(const.args.folder, song))
                     return False
 
             log.warning('"{}" already exists'.format(song))
-            if args.overwrite == 'prompt':
+            if const.args.overwrite == 'prompt':
                 log.info('"{}" has already been downloaded. '
                          'Re-download? (y/N): '.format(song))
                 prompt = input('> ')
                 if prompt.lower() == 'y':
-                    os.remove(os.path.join(args.folder, song))
+                    os.remove(os.path.join(const.args.folder, song))
                     return False
                 else:
                     return True
-            elif args.overwrite == 'force':
-                os.remove(os.path.join(args.folder, song))
+            elif const.args.overwrite == 'force':
+                os.remove(os.path.join(const.args.folder, song))
                 log.info('Overwriting "{}"'.format(song))
                 return False
-            elif args.overwrite == 'skip':
+            elif const.args.overwrite == 'skip':
                 log.info('Skipping "{}"'.format(song))
                 return True
     return False
@@ -157,32 +157,32 @@ def grab_single(raw_song, number=None):
         if not refined_songname == ' - ':
             songname = refined_songname
 
-    if args.dry_run:
+    if const.args.dry_run:
         return
 
     file_name = internals.sanitize_title(songname)
 
     if not check_exists(file_name, raw_song, meta_tags):
         if youtube_tools.download_song(file_name, content):
-            input_song = file_name + args.input_ext
-            output_song = file_name + args.output_ext
+            input_song = file_name + const.args.input_ext
+            output_song = file_name + const.args.output_ext
             print('')
 
             try:
-                convert.song(input_song, output_song, args.folder,
-                             avconv=args.avconv)
+                convert.song(input_song, output_song, const.args.folder,
+                             avconv=const.args.avconv)
             except FileNotFoundError:
-                encoder = 'avconv' if args.avconv else 'ffmpeg'
+                encoder = 'avconv' if const.args.avconv else 'ffmpeg'
                 log.warning('Could not find {0}, skipping conversion'.format(encoder))
-                args.output_ext = args.input_ext
-                output_song = file_name + args.output_ext
+                const.args.output_ext = const.args.input_ext
+                output_song = file_name + const.args.output_ext
 
-            if not args.input_ext == args.output_ext:
-                os.remove(os.path.join(args.folder, input_song))
+            if not const.args.input_ext == const.args.output_ext:
+                os.remove(os.path.join(const.args.folder, input_song))
 
-            if not args.no_metadata:
+            if not const.args.no_metadata:
                 if metadata:
-                    metadata.embed(os.path.join(args.folder, output_song), meta_tags)
+                    metadata.embed(os.path.join(const.args.folder, output_song), meta_tags)
                 else:
                     log.warning('Could not find metadata')
 
@@ -196,27 +196,27 @@ token = spotify_tools.generate_token()
 spotify = spotipy.Spotify(auth=token)
 
 if __name__ == '__main__':
-    args = arguments.parsed
-    internals.filter_path(args.folder)
+    const.args = handle.get_arguments()
+    internals.filter_path(const.args.folder)
 
-    logger.log = logger.logzero.setup_logger(formatter=logger.formatter,
-                                      level=args.log_level)
-    log = logger.log
+    const.log = const.logzero.setup_logger(formatter=const.formatter,
+                                      level=const.args.log_level)
+    log = const.log
     log.debug('Python version: {}'.format(sys.version))
     log.debug('Platform: {}'.format(platform.platform()))
-    log.debug(pprint.pformat(args.__dict__))
+    log.debug(pprint.pformat(const.args.__dict__))
 
     try:
-        if args.song:
-            grab_single(raw_song=args.song)
-        elif args.list:
-            grab_list(text_file=args.list)
-        elif args.playlist:
-            grab_playlist(playlist=args.playlist)
-        elif args.album:
-            spotify_tools.grab_album(album=args.album)
-        elif args.username:
-            spotify_tools.feed_playlist(username=args.username)
+        if const.args.song:
+            grab_single(raw_song=const.args.song)
+        elif const.args.list:
+            grab_list(text_file=const.args.list)
+        elif const.args.playlist:
+            grab_playlist(playlist=const.args.playlist)
+        elif const.args.album:
+            spotify_tools.grab_album(album=const.args.album)
+        elif const.args.username:
+            spotify_tools.feed_playlist(username=const.args.username)
 
         # Actually we don't necessarily need this, but yeah...
         # Explicit is better than implicit!
diff --git a/test/test_simple.py b/test/test_simple.py
index 8100ed0..6077b93 100644
--- a/test/test_simple.py
+++ b/test/test_simple.py
@@ -1,32 +1,26 @@
 # -*- coding: UTF-8 -*-
 
-from spotdl import logger
+from spotdl import const
+from spotdl import handle
 import spotdl
+
 import os
 
+const.args = handle.get_arguments(to_group=False, raw_args='')
+const.args.folder = 'test'
+const.args.overwrite = 'skip'
+const.args.log_level = handle.logging.DEBUG
+
+spotdl.args = const.args
+spotdl.log = const.logzero.setup_logger(formatter=const.formatter,
+                                  level=const.args.log_level)
+
+
 raw_song = "Tony's Videos VERY SHORT VIDEO 28.10.2016"
 
-
-test_args = '-f test -ll debug -m --overwrite skip'.split()
-
-class TestArgs:
-    manual = False
-    input_ext = '.m4a'
-    output_ext = '.mp3'
-    folder = 'test'
-    log_level = logger.logging.DEBUG
-    overwrite = 'skip'
-    music_videos_only = False
-
-setattr(spotdl, "args", TestArgs())
-
-spotdl.log = logger.logzero.setup_logger(formatter=logger.formatter,
-                                  level=spotdl.args.log_level)
-
-
 def test_youtube_url():
     expect_url = 'http://youtube.com/watch?v=qOOcy2-tmbk'
-    url = spotdl.generate_youtube_url(raw_song, meta_tags=None)
+    url = spotdl.youtube_tools.generate_youtube_url(raw_song, meta_tags=None)
     assert url == expect_url
 
 
@@ -34,8 +28,8 @@ def test_youtube_title():
     global content
     global title
     expect_title = "Tony's Videos VERY SHORT VIDEO 28.10.2016"
-    content = spotdl.go_pafy(raw_song, meta_tags=None)
-    title = spotdl.get_youtube_title(content)
+    content = spotdl.youtube_tools.go_pafy(raw_song, meta_tags=None)
+    title = spotdl.youtube_tools.get_youtube_title(content)
     assert title == expect_title
 
 def test_check_exists():
@@ -50,7 +44,7 @@ def test_download():
     expect_download = True
     # prerequisites for determining filename
     file_name = spotdl.internals.sanitize_title(title)
-    download = spotdl.download_song(file_name, content)
+    download = spotdl.youtube_tools.download_song(file_name, content)
     assert download == expect_download
 
 
@@ -61,9 +55,9 @@ def test_convert():
     file_name = spotdl.internals.sanitize_title(title)
     global input_song
     global output_song
-    input_song = file_name + spotdl.args.input_ext
-    output_song = file_name + spotdl.args.output_ext
-    convert = spotdl.convert.song(input_song, output_song, spotdl.args.folder)
+    input_song = file_name + const.args.input_ext
+    output_song = file_name + const.args.output_ext
+    convert = spotdl.convert.song(input_song, output_song, const.args.folder)
     assert convert == expect_convert
 
 
@@ -73,8 +67,8 @@ def test_metadata():
     meta_tags = spotdl.spotify_tools.generate_metadata(raw_song)
     file_name = spotdl.internals.sanitize_title(title)
     if meta_tags:
-        metadata_output = spotdl.metadata.embed(os.path.join(spotdl.args.folder, output_song), meta_tags)
-        metadata_input = spotdl.metadata.embed(os.path.join(spotdl.args.folder, input_song), meta_tags)
+        metadata_output = spotdl.metadata.embed(os.path.join(const.args.folder, output_song), meta_tags)
+        metadata_input = spotdl.metadata.embed(os.path.join(const.args.folder, input_song), meta_tags)
     else:
         metadata_input = None
         metadata_output = None
@@ -85,7 +79,7 @@ def test_check_exists2():
     expect_check = True
     # prerequisites for determining filename
     file_name = spotdl.internals.sanitize_title(title)
-    os.remove(os.path.join(spotdl.args.folder, input_song))
+    os.remove(os.path.join(const.args.folder, input_song))
     check = spotdl.check_exists(file_name, raw_song, meta_tags=None)
-    os.remove(os.path.join(spotdl.args.folder, output_song))
+    os.remove(os.path.join(const.args.folder, output_song))
     assert check == expect_check
diff --git a/test/test_spotify.py b/test/test_spotify.py
index 17e10a5..175197e 100644
--- a/test/test_spotify.py
+++ b/test/test_spotify.py
@@ -1,54 +1,48 @@
 # -*- coding: UTF-8 -*-
 
-from spotdl import logger
+from spotdl import const
+from spotdl import handle
 import spotdl
+
 import os
 
+const.args = handle.get_arguments(to_group=False, raw_args='')
+const.args.folder = 'test'
+const.args.overwrite = 'skip'
+const.args.log_level = handle.logging.DEBUG
+
+spotdl.args = const.args
+spotdl.log = const.logzero.setup_logger(formatter=const.formatter,
+                                  level=const.args.log_level)
+
+
 raw_song = 'http://open.spotify.com/track/0JlS7BXXD07hRmevDnbPDU'
 
-
-class TestArgs:
-    manual = False
-    input_ext = '.m4a'
-    output_ext = '.mp3'
-    folder = 'test'
-    log_level = 'DEBUG'
-    overwrite = 'skip'
-    music_videos_only = False
-
-test_args = TestArgs()
-setattr(spotdl, "args", test_args)
-
-spotdl.log = logger.logzero.setup_logger(formatter=logger.formatter,
-                                  level=spotdl.args.log_level)
-spotdl.internals.filter_path(spotdl.args.folder)
-
-
 def test_spotify_title():
     expect_title = 'David André Østby - Intro'
     global meta_tags
     meta_tags = spotdl.spotify_tools.generate_metadata(raw_song)
-    title = spotdl.generate_songname(meta_tags)
+    title = spotdl.internals.generate_songname(meta_tags)
     assert title == expect_title
 
 
-def youtube_url():
-    expect_url = 'youtube.com/watch?v=rg1wfcty0BA'
-    url = spotdl.generate_youtube_url(raw_song, meta_tags)
+def test_youtube_url():
+    expect_url = 'http://youtube.com/watch?v=rg1wfcty0BA'
+    url = spotdl.youtube_tools.generate_youtube_url(raw_song, meta_tags)
     assert url == expect_url
 
 
-def youtube_title():
+def test_youtube_title():
     expect_title = 'Intro - David André Østby'
-    content = spotdl.go_pafy(raw_song, meta_tags)
-    title = spotdl.get_youtube_title(content)
+    content = spotdl.youtube_tools.go_pafy(raw_song, meta_tags)
+    title = spotdl.youtube_tools.get_youtube_title(content)
     assert title == expect_title
 
 
 def test_check_exists():
     expect_check = False
     # prerequisites for determining filename
-    songname = spotdl.generate_songname(meta_tags)
+    songname = spotdl.internals.generate_songname(meta_tags)
     global file_name
     file_name = spotdl.internals.sanitize_title(songname)
     check = spotdl.check_exists(file_name, raw_song, meta_tags)
@@ -58,8 +52,8 @@ def test_check_exists():
 def test_download():
     expect_download = True
     # prerequisites for determining filename
-    content = spotdl.go_pafy(raw_song, meta_tags)
-    download = spotdl.download_song(file_name, content)
+    content = spotdl.youtube_tools.go_pafy(raw_song, meta_tags)
+    download = spotdl.youtube_tools.download_song(file_name, content)
     assert download == expect_download