diff --git a/.coveragerc b/.coveragerc
new file mode 100644
index 000000000..f7fd421d6
--- /dev/null
+++ b/.coveragerc
@@ -0,0 +1,54 @@
+[run]
+branch=True
+cover_pylib=False
+concurrency=thread
+data_file=.coverage
+disable_warnings=
+    trace-changed
+    module-not-python
+    module-not-imported
+    no-data-collected
+    module-not-measured
+    # include-ignored
+omit =
+    venv/*
+    janis_core/tests/*
+    setup.py
+parallel = True
+plugins=
+include=
+    janis_core/*
+timid = False
+
+
+[report]
+
+exclude_lines =
+    pragma: no cover
+    def __repr__
+    raise NotImplementedError
+    if __name__ == .__main__.:
+    def parse_args
+    def main
+fail_under=0
+ignore_errors = False
+omit =
+    venv/*
+    janis_core/tests/*
+    setup.py
+precision=2
+show_missing=False
+skip_covered=False
+sort=Name
+
+[html]
+
+directory=htmlcov
+extra_css=
+title=
+
+
+[xml]
+
+output=coverage.xml
+package_depth=99
diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index be3676d7c..4a0e06df6 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -1,6 +1,6 @@
 name: Unit Tests
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build:
diff --git a/.gitignore b/.gitignore
index fd10dad8b..a1d5bfc73 100644
--- a/.gitignore
+++ b/.gitignore
@@ -79,10 +79,8 @@ docs/_build/
 janis_pipelines.egg-info/
 dist/
 build/
-
-
-
-
+tests_output/
+htmlcov/
 
 \.mypy_cache/
 *.egg-info
diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 000000000..b3250667d
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1,7 @@
+[pytest]
+addopts =
+    --cov
+    --doctest-modules
+    --ignore janis_core/tests/
+testpaths =
+    janis_core
diff --git a/requirements/tests.txt b/requirements/tests.txt
index cd73ddf6e..152f2a74b 100644
--- a/requirements/tests.txt
+++ b/requirements/tests.txt
@@ -3,4 +3,5 @@ nose
 codecov
 coverage
 requests_mock
-pytest
\ No newline at end of file
+pytest
+pytest-cov
\ No newline at end of file