diff --git a/.gitignore b/.gitignore
index 98cefe31906..f3e14baa533 100644
--- a/.gitignore
+++ b/.gitignore
@@ -75,3 +75,7 @@ ocp4/profiles/test.profile
 
 # Ignore build profiling data
 .build_profiling/
+
+# Ignore coverage files
+.coverage
+coverage.xml
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 66cb1f72697..05085833095 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -14,7 +14,6 @@ macro(ssg_python_unit_tests PYTHON_COMPONENT_ID RELATIVE_PYTHONPATH)
 endmacro()
 
 if(PY_PYTEST)
-    ssg_python_unit_tests("build-scripts" "build-scripts")
     ssg_python_unit_tests("utils" "utils")
     ssg_python_unit_tests("ssg-module" ".")
     ssg_python_unit_tests("ssg_test_suite" "tests")
diff --git a/tests/unit/build-scripts/test_relabel_ids.py b/tests/unit/build-scripts/test_relabel_ids.py
deleted file mode 100644
index 84669ab45c2..00000000000
--- a/tests/unit/build-scripts/test_relabel_ids.py
+++ /dev/null
@@ -1,4 +0,0 @@
-
-
-def test_nothing():
-    pass
diff --git a/tests/unit/ssg-module/test_build_yaml.py b/tests/unit/ssg-module/test_build_yaml.py
index 4a36b6b9c19..88408751f2a 100644
--- a/tests/unit/ssg-module/test_build_yaml.py
+++ b/tests/unit/ssg-module/test_build_yaml.py
@@ -2,6 +2,7 @@
 import collections
 import os
 import tempfile
+import sys
 
 import yaml
 import pytest
@@ -437,6 +438,7 @@ def rule_accounts_tmout():
     return ssg.build_yaml.Rule.from_yaml(rule_file)
 
 
+@pytest.mark.skipif(sys.version_info[0] < 3, reason="requires python3 or higher")
 def test_rule_to_xml_element(rule_accounts_tmout):
     xmldiff_main = pytest.importorskip("xmldiff.main")
     rule_el = rule_accounts_tmout.to_xml_element()
@@ -469,6 +471,7 @@ def value_system_crypto_policy():
     return ssg.build_yaml.Value.from_yaml(value_file)
 
 
+@pytest.mark.skipif(sys.version_info[0] < 3, reason="requires python3 or higher")
 def test_value_to_xml_element(value_system_crypto_policy):
     xmldiff_main = pytest.importorskip("xmldiff.main")
     value_el = value_system_crypto_policy.to_xml_element()
diff --git a/tests/unit/ssg-module/test_controls.py b/tests/unit/ssg-module/test_controls.py
index 2f724bc63e8..d6573ce4578 100644
--- a/tests/unit/ssg-module/test_controls.py
+++ b/tests/unit/ssg-module/test_controls.py
@@ -1,6 +1,7 @@
 import pytest
 import logging
 import os
+import sys
 
 import ssg.controls
 import ssg.build_yaml
@@ -98,6 +99,7 @@ def test_controls_load(controls_manager):
     _load_test(controls_manager, "abcd")
 
 
+@pytest.mark.skipif(sys.version_info[0] < 3, reason="requires python3 or higher")
 def test_controls_invalid_rules(env_yaml):
     existing_rules = {"accounts_tmout", "configure_crypto_policy"}
     controls_manager = ssg.controls.ControlsManager(
@@ -107,6 +109,8 @@ def test_controls_invalid_rules(env_yaml):
     assert str(exc.value) == \
         "Control abcd:R1 contains nonexisting rule(s) sshd_set_idle_timeout"
 
+
+@pytest.mark.skipif(sys.version_info[0] < 3, reason="requires python3 or higher")
 def test_controls_levels(controls_manager):
     # Default level is the lowest level
     c_1 = controls_manager.get_control("abcd-levels", "S1")
diff --git a/tox.ini b/tox.ini
index 32f58c29a6c..7af7dd16b28 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,44 +1,60 @@
 [tox]
-envlist = py27,py3{6,7,8,9,10,11},flake8,docs
+envlist = coverage_clean, py27, py3{6, 8, 9}, py3, coverage_report, flake8
 skip_missing_interpreters = true
 isolated_build = true
 skipsdist = true
 
-[flake8]
-max-line-length = 99
-
+# Unit tests
 [testenv]
+setenv =
+    tests_dir = {toxinidir}{/}tests/unit
+    PYTHONPATH = {toxinidir}
+commands =
+    python -m pytest --cov-append --cov-report=xml --cov=ssg "{env:tests_dir}{/}ssg-module"
+
+deps =
+    pyyaml
+    Jinja2
+    -r test-requirements.txt
+
+# Coverage
+[testenv:coverage_report]
+deps = coverage
 skip_install = true
-install_command = pip install {opts} {packages}
+commands =
+    coverage html
+    coverage xml
+    coverage report -m
+
+[testenv:coverage_clean]
+deps = coverage
+skip_install = true
+commands = coverage erase
+
+
+# Code style
+[flake8]
+max-line-length = 99
+per-file-ignores =__init__.py:F401
 
 [testenv:flake8]
-basepython = python3
 commands =
-    flake8 ssg utils
+    flake8 ssg utils tests build-scripts
 deps =
     flake8
 
+# Documentation
 [testenv:docs]
-skip_install=false
-skipsdist=true
 basepython = python3
 allowlist_externals =
     make
+    rm
 deps =
     -r docs/requirements.txt
+commands_pre =
+    make -C docs clean
+    rm -rf docs/api
 commands =
     make -C docs html
 commands_post =
     make -C docs linkcheck
-
-[testenv:clean]
-skip_install = true
-allowlist_externals =
-    bash
-
-deps =
-    pip>=21.1
-
-commands =
-    bash -c 'make -C docs/ clean'
-    bash -c 'rm -rf dist/ build/* docs/api/'