diff --git a/tests/conftest.py b/tests/conftest.py
index c8289e4..f182f89 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,151 +1,7 @@
-import json
-import os
-import tempfile
-from pathlib import Path
-
 import pytest
 
-from depviz.core.models import Dependency, PackageStatus
-
 
 @pytest.fixture
-def temp_project_dir():
-    """Create a temporary project directory."""
-    with tempfile.TemporaryDirectory() as tmpdir:
-        yield Path(tmpdir)
-
-
-@pytest.fixture
-def sample_package_json(temp_project_dir):
-    """Create a sample package.json file."""
-    package_json = {
-        "name": "test-project",
-        "version": "1.0.0",
-        "dependencies": {
-            "lodash": "^4.17.21",
-            "express": "^4.18.2"
-        },
-        "devDependencies": {
-            "jest": "^29.0.0",
-            "typescript": "^5.0.0"
-        }
-    }
-    path = temp_project_dir / "package.json"
-    path.write_text(json.dumps(package_json, indent=2))
-    return path
-
-
-@pytest.fixture
-def sample_package_lock_json(temp_project_dir):
-    """Create a sample package-lock.json file."""
-    package_lock = {
-        "name": "test-project",
-        "version": "1.0.0",
-        "packages": {
-            "": {
-                "name": "test-project",
-                "version": "1.0.0"
-            },
-            "node_modules/lodash": {
-                "name": "lodash",
-                "version": "4.17.21",
-                "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz"
-            },
-            "node_modules/express": {
-                "name": "express",
-                "version": "4.18.2",
-                "resolved": "https://registry.npmjs.org/express/-/express-4.18.2.tgz",
-                "dependencies": {
-                    "body-parser": {
-                        "version": "1.20.2"
-                    }
-                }
-            }
-        }
-    }
-    path = temp_project_dir / "package-lock.json"
-    path.write_text(json.dumps(package_lock, indent=2))
-    return path
-
-
-@pytest.fixture
-def sample_requirements_txt(temp_project_dir):
-    """Create a sample requirements.txt file."""
-    content = """requests>=2.28.0
-flask>=2.3.0
-redis>=4.5.0
-    """
-    path = temp_project_dir / "requirements.txt"
-    path.write_text(content)
-    return path
-
-
-@pytest.fixture
-def sample_pipfile_lock(temp_project_dir):
-    """Create a sample Pipfile.lock file."""
-    pipfile_lock = {
-        "default": {
-            "requests": {
-                "version": "==2.28.0"
-            },
-            "flask": {
-                "version": "==2.3.0"
-            }
-        },
-        "develop": {
-            "pytest": {
-                "version": "==7.4.0"
-            }
-        }
-    }
-    path = temp_project_dir / "Pipfile.lock"
-    path.write_text(json.dumps(pipfile_lock, indent=2))
-    return path
-
-
-@pytest.fixture
-def sample_pyproject_toml(temp_project_dir):
-    """Create a sample pyproject.toml file."""
-    content = """[project]
-name = \"test-project\"
-version = \"1.0.0\"
-dependencies = [
-    \"requests>=2.28.0\",
-    \"flask>=2.3.0\",
-]
-
-[project.optional-dependencies]
-dev = [
-    \"pytest>=7.4.0\",
-    \"black>=23.0.0\",
-]
-    """
-    path = temp_project_dir / "pyproject.toml"
-    path.write_text(content)
-    return path
-
-
-@pytest.fixture
-def sample_dependencies():
-    """Create sample Dependency objects."""
-    return [
-        Dependency(
-            name="lodash",
-            version="4.17.21",
-            status=PackageStatus.CURRENT,
-            is_dev=False
-        ),
-        Dependency(
-            name="express",
-            version="4.18.2",
-            status=PackageStatus.OUTDATED,
-            latest_version="4.19.0",
-            is_dev=False
-        ),
-        Dependency(
-            name="jest",
-            version="29.0.0",
-            status=PackageStatus.VULNERABLE,
-            is_dev=True
-        ),
-    ]
\ No newline at end of file
+def temp_dir(tmp_path):
+    """Provide a temporary directory."""
+    return tmp_path