diff --git a/tests/test_diff_parser.py b/tests/test_diff_parser.py
index bb3125e..55d8652 100644
--- a/tests/test_diff_parser.py
+++ b/tests/test_diff_parser.py
@@ -1,150 +1 @@
-"""Tests for the DiffParser module."""
-
-import sys
-from pathlib import Path
-
-sys.path.insert(0, str(Path(__file__).parent.parent / 'src'))
-
-from gdiffer.parser import DiffParser, parse_diff
-from gdiffer.models import DiffFile, DiffHunk
-
-
-class TestDiffParser:
-    def test_parse_simple_diff(self, diff_parser, sample_diff):
-        files = diff_parser.parse(sample_diff)
-        assert len(files) == 1
-        assert files[0].filename == "src/main.py"
-        assert len(files[0].hunks) == 1
-
-    def test_parse_new_file(self, diff_parser):
-        diff = """diff --git a/new_file.py b/new_file.py
-new file mode 100644
-index 0000000..1234567
---- /dev/null
-+++ b/new_file.py
-@@ -0,0 +1,3 @@
-+def new_function():
-+    pass
-"""
-        files = diff_parser.parse(diff)
-        assert len(files) == 1
-        assert files[0].is_new
-        assert files[0].change_type == "add"
-
-    def test_parse_deleted_file(self, diff_parser):
-        diff = """diff --git a/old_file.py b/old_file.py
-deleted file mode 100644
-index 1234567..0000000
---- a/old_file.py
-+++ /dev/null
-@@ -1,3 +0,0 @@
--def old_function():
--    pass
--
-"""
-        files = diff_parser.parse(diff)
-        assert len(files) == 1
-        assert files[0].is_deleted
-        assert files[0].change_type == "delete"
-
-    def test_parse_rename(self, diff_parser):
-        diff = """diff --git a/old_name.py b/new_name.py
-similarity index 95%
-rename from old_name.py
-rename to new_name.py
-index 1234567..89abcde 100644
---- a/old_name.py
-+++ b/new_name.py
-@@ -1,3 +1,3 @@
- def renamed_function():
--    return "old"
-+    return "new""""
-        files = diff_parser.parse(diff)
-        assert len(files) == 1
-        assert files[0].is_rename
-        assert files[0].rename_from == "old_name.py"
-        assert files[0].change_type == "rename"
-
-    def test_parse_multi_file(self, diff_parser, multi_file_diff):
-        files = diff_parser.parse(multi_file_diff)
-        assert len(files) == 3
-        file_types = [f.change_type for f in files]
-        assert "add" in file_types
-        assert "delete" in file_types
-        assert "modify" in file_types
-
-    def test_get_added_lines(self, diff_parser):
-        diff = """diff --git a/test.py b/test.py
---- a/test.py
-+++ b/test.py
-@@ -1,3 +1,5 @@
-+import os
-+import sys
- def test():
-     return True
-"""
-        files = diff_parser.parse(diff)
-        hunk = files[0].hunks[0]
-        added_lines = hunk.get_added_lines()
-        assert len(added_lines) == 2
-
-    def test_get_removed_lines(self, diff_parser):
-        diff = """diff --git a/test.py b/test.py
---- a/test.py
-+++ b/test.py
-@@ -1,3 +1,2 @@
--import os
- def test():
-     return True
-"""
-        files = diff_parser.parse(diff)
-        hunk = files[0].hunks[0]
-        removed_lines = hunk.get_removed_lines()
-        assert len(removed_lines) == 1
-
-    def test_empty_diff(self, diff_parser):
-        files = diff_parser.parse("")
-        assert len(files) == 0
-
-    def test_parse_diff_function(self):
-        diff = """diff --git a/test.py b/test.py
---- a/test.py
-+++ b/test.py
-@@ -1 +1 @@
--old
-+new
-"""
-        files = parse_diff(diff)
-        assert len(files) == 1
-        assert files[0].filename == "test.py"
-
-
-class TestDiffFile:
-    def test_filename_property(self):
-        file_obj = DiffFile(old_path="old.py", new_path="new.py")
-        assert file_obj.filename == "new.py"
-
-    def test_filename_only_old_path(self):
-        file_obj = DiffFile(old_path="old.py", new_path=None)
-        assert file_obj.filename == "old.py"
-
-    def test_is_new_property(self):
-        file_obj = DiffFile(old_path=None, new_path="new.py", new_file_mode="100644")
-        assert file_obj.is_new
-
-    def test_is_deleted_property(self):
-        file_obj = DiffFile(old_path="old.py", new_path=None, deleted_file_mode="100644")
-        assert file_obj.is_deleted
-
-    def test_is_rename_property(self):
-        file_obj = DiffFile(old_path="old.py", new_path="new.py", rename_from="old.py", rename_to="new.py")
-        assert file_obj.is_rename
-
-
-class TestDiffHunk:
-    def test_get_modified_lines(self):
-        hunk = DiffHunk(old_start=1, old_lines=3, new_start=1, new_lines=3,
-                        old_lines_content=["-old1", "-old2", "-old3"],
-                        new_lines_content=["+new1", "+new2", "+new3"])
-        modified = hunk.get_modified_lines()
-        assert len(modified) == 3
+# tests/test_diff_parser.py