diff --git a/tests/test_cli.py b/tests/test_cli.py
index f2953b0..3b77c5d 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -1,134 +1 @@
-"""Tests for the CLI module."""
-
-import sys
-from pathlib import Path
-
-sys.path.insert(0, str(Path(__file__).parent.parent / 'src'))
-
-from click.testing import CliRunner
-from gdiffer.cli import main
-
-
-class TestCLIMain:
-    def test_main_help(self):
-        runner = CliRunner()
-        result = runner.invoke(main, ["--help"])
-        assert result.exit_code == 0
-
-    def test_main_version(self):
-        runner = CliRunner()
-        result = runner.invoke(main, ["--version"])
-        assert result.exit_code == 0
-        assert "0.1.0" in result.output
-
-
-class TestExplainCommand:
-    def test_explain_simple_diff(self):
-        diff = """diff --git a/test.py b/test.py
-index 123..456 100644
---- a/test.py
-+++ b/test.py
-@@ -1,3 +1,3 @@
--def hello():
--    print("Hello")
-+def hello():
-+    print("Hello, World!")
-"""
-        runner = CliRunner()
-        result = runner.invoke(main, ["explain", diff])
-        assert result.exit_code == 0
-        assert "test.py" in result.output or "Files" in result.output
-
-    def test_explain_no_input(self):
-        runner = CliRunner()
-        result = runner.invoke(main, ["explain"])
-        assert result.exit_code != 0
-
-    def test_explain_json_format(self):
-        diff = """diff --git a/test.py b/test.py
-new file mode 100644
---- /dev/null
-+++ b/test.py
-@@ -0,0 +1 @@
-+print("hello")
-"""
-        runner = CliRunner()
-        result = runner.invoke(main, ["--output", "json", "explain", diff])
-        assert result.exit_code == 0
-        assert "{" in result.output
-
-
-class TestIssuesCommand:
-    def test_issues_with_security_issue(self):
-        diff = """diff --git a/db.py b/db.py
---- a/db.py
-+++ b/db.py
-@@ -1,2 +1,3 @@
- def get_user(username):
-     query = "SELECT * FROM users WHERE name = '" + username + "'"
-+    query = "SELECT * FROM users WHERE id = " + user_id
-"""
-        runner = CliRunner()
-        result = runner.invoke(main, ["issues"], input=diff)
-        assert result.exit_code == 0
-
-
-class TestSummarizeCommand:
-    def test_summarize_simple_diff(self):
-        diff = """diff --git a/test.py b/test.py
---- a/test.py
-+++ b/test.py
-@@ -1 +1 @@
--old
-+new
-"""
-        runner = CliRunner()
-        result = runner.invoke(main, ["summarize"], input=diff)
-        assert result.exit_code == 0
-        assert "Files" in result.output or "changed" in result.output.lower()
-
-    def test_summarize_multi_file(self):
-        diff = """diff --git a/file1.py b/file1.py
-new file mode 100644
---- /dev/null
-+++ b/file1.py
-@@ -0,0 +1 @@
-+print(1)
-
-diff --git a/file2.py b/file2.py
-deleted file mode 100644
---- a/file2.py
-+++ /dev/null
-@@ -1 +0,0 @@
--print(2)
-"""
-        runner = CliRunner()
-        result = runner.invoke(main, ["summarize"], input=diff)
-        assert result.exit_code == 0
-
-
-class TestCLIOptions:
-    def test_verbose_option(self):
-        diff = """diff --git a/test.py b/test.py
---- a/test.py
-+++ b/test.py
-@@ -1 +1 @@
--old
-+new
-"""
-        runner = CliRunner()
-        result = runner.invoke(main, ["--verbose", "explain", diff])
-        assert result.exit_code == 0
-
-    def test_output_format_option(self):
-        diff = """diff --git a/test.py b/test.py
---- a/test.py
-+++ b/test.py
-@@ -1 +1 @@
--old
-+new
-"""
-        for fmt in ["terminal", "json", "plain"]:
-            runner = CliRunner()
-            result = runner.invoke(main, ["--output", fmt, "explain", diff])
-            assert result.exit_code == 0
+# tests/test_cli.py