diff --git a/tests/test_match.py b/tests/test_match.py
index 60a9cde4..7f69dc34 100644
--- a/tests/test_match.py
+++ b/tests/test_match.py
@@ -51,14 +51,14 @@ def test_match_simple():
         """
     )
     r = capa.rules.Rule.from_yaml(rule)
- 
+
     features, matches = match([r], {capa.features.insn.Number(100): {1, 2}}, 0x0)
     assert "test rule" in matches
     assert MatchedRule("test rule") in features
     assert MatchedRule("testns1") in features
     assert MatchedRule("testns1/testns2") in features
 
- 
+
 def test_match_range_exact():
     rule = textwrap.dedent(
         """
@@ -225,7 +225,7 @@ def test_match_matched_rules():
     assert capa.features.common.MatchedRule("test rule1") in features
     assert capa.features.common.MatchedRule("test rule2") in features
 
- 
+
 def test_match_namespace():
     rules = [
         capa.rules.Rule.from_yaml(
@@ -296,7 +296,6 @@ def test_match_namespace():
     assert "WriteFile API" in matches
     assert "file-create" not in matches
     assert "filesystem-any" in matches
-                
 
 
 def test_match_substring():
@@ -495,8 +494,8 @@ def test_match_regex_values_always_string():
         0x0,
     )
     assert capa.features.common.MatchedRule("test rule") in features
- 
- 
+
+
 def test_match_not():
     rule = textwrap.dedent(
         """
@@ -510,11 +509,11 @@ def test_match_not():
         """
     )
     r = capa.rules.Rule.from_yaml(rule)
- 
+
     _, matches = match([r], {capa.features.insn.Number(100): {1, 2}}, 0x0)
     assert "test rule" in matches
-                           
- 
+
+
 def test_match_not_not():
     rule = textwrap.dedent(
         """
@@ -529,6 +528,6 @@ def test_match_not_not():
         """
     )
     r = capa.rules.Rule.from_yaml(rule)
- 
+
     _, matches = match([r], {capa.features.insn.Number(100): {1, 2}}, 0x0)
     assert "test rule" in matches
diff --git a/tests/test_render.py b/tests/test_render.py
index 17c9eb00..c6b181e8 100644
--- a/tests/test_render.py
+++ b/tests/test_render.py
@@ -2,9 +2,10 @@ import textwrap
 
 import capa.rules
 import capa.render.utils
-import capa.render.result_document
 import capa.features.insn
 import capa.features.common
+import capa.render.result_document
+
 
 def test_render_number():
     assert str(capa.features.insn.Number(1)) == "number(0x1)"
@@ -16,7 +17,7 @@ def test_render_offset():
     assert str(capa.features.insn.Offset(1)) == "offset(0x1)"
     assert str(capa.features.insn.Offset(1, bitness=capa.features.common.BITNESS_X32)) == "offset/x32(0x1)"
     assert str(capa.features.insn.Offset(1, bitness=capa.features.common.BITNESS_X64)) == "offset/x64(0x1)"
- 
+
 
 def test_render_meta_attack():
     # Persistence::Boot or Logon Autostart Execution::Registry Run Keys / Startup Folder [T1547.001]
diff --git a/tests/test_rules.py b/tests/test_rules.py
index 758db5be..90b3b02a 100644
--- a/tests/test_rules.py
+++ b/tests/test_rules.py
@@ -785,8 +785,6 @@ def test_substring_description():
     assert (Substring("abc") in children) == True
 
 
-
-
 def test_filter_rules():
     rules = capa.rules.RuleSet(
         [