diff --git a/test/test_version_class.py b/test/test_version_class.py
index 881ea7f..eb3404d 100644
--- a/test/test_version_class.py
+++ b/test/test_version_class.py
@@ -68,3 +68,57 @@ def test_gradle(tmp_path):
     
     # 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/resources/{file_name}', 'r') as gradle_file:
+        contents = gradle_file.read()
+
+    f = tmp_path / file_name
+    f.write_text(contents)
+    
+    # test
+    version_repo = VersionRepository.get(f)
+    version_list = version_repo.version_list
+    version = Version.create_release_version(version_list, ReleaseType.SNAPSHOT)
+    version_repo.write_file(version.get_version_string())
+    
+    # check
+    assert '"version": "123.123.456-SNAPSHOT"' in f.read_text()
+
+def test_clojure(tmp_path):
+    # init
+    file_name = 'config.clj'
+    with open(f'test/resources/{file_name}', 'r') as gradle_file:
+        contents = gradle_file.read()
+
+    f = tmp_path / file_name
+    f.write_text(contents)
+
+    # test
+    version_repo = VersionRepository.get(f)
+    version_list = version_repo.version_list
+    version = Version.create_release_version(version_list, ReleaseType.SNAPSHOT)
+    version_repo.write_file(version.get_version_string())
+    
+    # check
+    assert '1.1.3-SNAPSHOT' in f.read_text()
+
+def test_python(tmp_path):
+    # init
+    file_name = 'config.py'
+    with open(f'test/resources/{file_name}', 'r') as gradle_file:
+        contents = gradle_file.read()
+
+    f = tmp_path / file_name
+    f.write_text(contents)
+
+    # test
+    version_repo = VersionRepository.get(f)
+    version_list = version_repo.version_list
+    version = Version.create_release_version(version_list, ReleaseType.SNAPSHOT)
+    version_repo.write_file(version.get_version_string())
+    
+    # check
+    assert '3.1.3-SNAPSHOT' in f.read_text()
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