Fix cachedir import in test files

Author: terriko

test/test_cli.py

@@ -6,7 +6,7 @@
 import logging
 import subprocess
 from cve_bin_tool.cli import main
-import cve_bin_tool.cvedb  # for disk location default
+from cve_bin_tool.cvedb import DISK_LOCATION_DEFAULT
 from cve_bin_tool.extractor import Extractor
 
 from .utils import (

test/test_json.py

@@ -13,7 +13,7 @@
 from jsonschema import validate
 from jsonschema.exceptions import ValidationError
 from test.utils import LONG_TESTS
-import cve_bin_tool.cvedb  # for default disk location
+from cve_bin_tool.cvedb import DISK_LOCATION_DEFAULT
 
 # Try python3 dependency, fall back if not available
 try: