diff --git a/services.py b/services.py
index 37445b2..35573bb 100644
--- a/services.py
+++ b/services.py
@@ -1,12 +1,14 @@
 from version_repository import VersionRepository
 from release_type import ReleaseType
 from git_repository import GitRepository
+from version import Version
 
 class InitReleaseService():
 
-    def __init__(self, file):
-        self.file = file
-        self.version_repo = None        
+    def __init__(self, version_repo: VersionRepository):        
+        if version_repo is None:
+            raise Exception('VersionRepo was not created. Did you run create_release_version()?')
+        self.version_repo = version_repo
 
     def __calculate_release_type(self, commit_string = None):
         if commit_string is None:
@@ -14,27 +16,43 @@ class InitReleaseService():
         else:
             return GitRepository.create_from_commit_string(commit_string).get_release_type_from_latest_commit()
         
-    def get_version(self, release_type):
-        self.version_repo = VersionRepository(self.file)
+    def get_version(self, release_type):        
         return self.version_repo.get_version(release_type)
 
     def create_release_version(self, commit_string = None):
         release_type = self.__calculate_release_type(commit_string)
-        version = self.get_version(release_type).create_release_version()
-        
-        self.version_repo.write_file(version.get_version_string())
+        version = self.get_version(release_type).create_release_version()        
+        return version
 
-    def create_bump_version(self):
-        if self.version_repo == None:
-            raise Exception('VersionRepo was not created. Did you run create_release_version()?')
+    def create_bump_version(self):        
         version = self.get_version(ReleaseType.BUMP).create_bump_version()
+        return version
+
         
-        self.version_repo.write_file(version.get_version_string())
-
-
-
 
 class PrepareReleaseService():
+
+    def __init__(self):
+        self.version_repo
+        pass
+
+    def run_tests(self): # maybe auto?
+        pass
+
+    def prepare_release(self, version: Version):
+        # self.version_repo.write_file(version.get_version_string()) # side effect
+        pass
+
+    def prepare_bump(self, version: Version):
+        # self.version_repo.write_file(version.get_version_string()) # side effect
+        pass
+
+    
+    # write
+    
+    
+    # add
+    # commit
     pass
 
 class TagAndPushReleaseService():
diff --git a/test/test_services.py b/test/test_services.py
index 45367f9..a5deaa1 100644
--- a/test/test_services.py
+++ b/test/test_services.py
@@ -19,6 +19,7 @@ sys.path.append(parent)
 
 from services import InitReleaseService
 from release_type import ReleaseType
+from version_repository import VersionRepository
 
 def test_init_release_service(tmp_path):
     # init
@@ -29,11 +30,12 @@ def test_init_release_service(tmp_path):
     f = tmp_path / file_name
     f.write_text(contents)
 
-    release_service = InitReleaseService(f)
-    release_service.create_release_version(commit_string='Release MINOR')
+    repo = VersionRepository(f)
+    release_service = InitReleaseService(repo)
+    version = release_service.create_release_version(commit_string='Release MINOR')
 
-    assert '"version": "123.124.0"' in f.read_text()
+    assert "123.124.0" in version.get_version_string()
 
-    release_service.create_bump_version()
+    version = release_service.create_bump_version()
 
-    assert '"version": "123.124.1-SNAPSHOT"' in f.read_text()
\ No newline at end of file
+    assert "123.123.457-SNAPSHOT" in version.get_version_string()
\ No newline at end of file