3 files changed, 6 insertions, 1 deletions

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dd8d8de..8113bdf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,6 +32,9 @@ jobs:
           command: clippy
           args: --all-targets --all-features
 
+      - name: Lint with Black
+        run: pip install black && black --check .
+
   macos:
     runs-on: macos-latest
     needs: lint
diff --git a/tests/test_engine.py b/tests/test_engine.py
index 8a7421c..6aa447f 100644
--- a/tests/test_engine.py
+++ b/tests/test_engine.py
@@ -63,6 +63,7 @@ def test_deserialize_corrupt(tmpdir):
     with pytest.raises(adblock.DeserializationError):
         engine.deserialize(b"abc")
 
+
 def test_serde():
     engine = empty_engine()
     serialization_result = engine.serialize()
diff --git a/tests/test_exceptions.py b/tests/test_exceptions.py
index 497b3ef..becf107 100644
--- a/tests/test_exceptions.py
+++ b/tests/test_exceptions.py
@@ -1,5 +1,6 @@
 import adblock
 
+
 def test_correct_baseclasses():
     assert issubclass(adblock.AdblockException, Exception)
     assert issubclass(adblock.BlockerException, adblock.AdblockException)
@@ -7,4 +8,4 @@ def test_correct_baseclasses():
     assert issubclass(adblock.DeserializationError, adblock.BlockerException)
     assert issubclass(adblock.OptimizedFilterExistence, adblock.BlockerException)
     assert issubclass(adblock.BadFilterAddUnsupported, adblock.BlockerException)
-    assert issubclass(adblock.FilterExists, adblock.BlockerException)
\ No newline at end of file
+    assert issubclass(adblock.FilterExists, adblock.BlockerException)