Update tox.ini

Author: s-cu-bot

tox.ini

@@ -29,6 +29,11 @@ changedir = tests
 commands =
   pytest -n 4 initial_tox_test.py::test_test_run_environment
 
+[testenv:format_test]
+changedir = tests
+commands =
+  pytest -n 4 file_format_test.py::test_output_file_format
+
 [testenv:release]
 deps =
   -r{toxinidir}/requirements-dev.txt
@@ -38,4 +43,4 @@ commands =
   pytest -v --flake8
   pyinstaller --onefile cli.py -n cli --additional-hooks-dir=hooks --hidden-import=pkg_resources.extern
   {toxinidir}/dist/cli -p tests -o test_result_cli
-  ; py.test --cov-report term-missing --cov={envsitepackagesdir}/fosslight_binary
+  ; py.test --cov-report term-missing --cov={envsitepackagesdir}/fosslight_binary