Implement tests for file handling

file_handlers.py

@@ -6,11 +6,11 @@ class FileHandler(ABC):
 
     @classmethod
     def from_file_path(cls, file_path):
-        config_file_type = file_path.split('.')[-1]
+        config_file_type = file_path.suffix
         match config_file_type:
-            case 'json':
+            case '.json':
                 file_handler = JsonFileHandler()
-            case 'gradle':
+            case '.gradle':
                 file_handler = GradleFileHandler()
             case _:
                 raise Exception(f'The file type "{config_file_type}" is not implemented')

test/config.gradle

@@ -1,2 +1,2 @@
 
-version = "12.4.678"
+version = "12.4.678"

test/test_version_class.py

@@ -1,4 +1,5 @@
 from devops_test import Version, ReleaseLevel
+from pathlib import Path
 
 def test_version():
     version = Version([1, 2, 3], False)
@@ -25,12 +26,36 @@ def test_version():
     assert version.get() == "2.0.0"
 
 
-def test_gradle():
-    # validate_values()
-    version = Version.from_file('build.gradle')
+def test_gradle(tmp_path):
+    # init
+    file_name = 'config.gradle'
+    with open(f'test/{file_name}', 'r') as gradle_file:
+        contents = gradle_file.read()
+
+    f = tmp_path / file_name
+    f.write_text(contents)
+
+    # test
+    version = Version.from_file(f)
+    version.increment(ReleaseLevel.SNAPSHOT)
+    version.to_file()
     
+    # check
+    assert 'version = "12.4.678-SNAPSHOT"' in f.read_text()
+
+def test_json(tmp_path):
+    # init
+    file_name = 'config.json'
+    with open(f'test/{file_name}', 'r') as gradle_file:
+        contents = gradle_file.read()
 
+    f = tmp_path / file_name
+    f.write_text(contents)
 
+    # test
+    version = Version.from_file(f)
     version.increment(ReleaseLevel.SNAPSHOT)
     version.to_file()
-    print(version.get())
+    
+    # check
+    assert '"version": "123.123.456-SNAPSHOT"' in f.read_text()