diff --git a/tests/test_lens.py b/tests/test_lens.py
index f0a8af5a..59fdb023 100644
--- a/tests/test_lens.py
+++ b/tests/test_lens.py
@@ -62,14 +62,14 @@ def setup_method(self):
             if gg_lens.validity_test(mag_arc_limit=mag_arc_limit):
                 self.gg_lens = gg_lens
                 break
-    
+
     def test_lens_id_gg(self):
         lens_id = self.gg_lens.generate_id()
         ra = self.gg_lens.deflector_position[0]
         dec = self.gg_lens.deflector_position[1]
-        ra2=12.03736542
-        dec2=35.17363534
-        lens_id2=self.gg_lens.generate_id(ra=ra2, dec=dec2)
+        ra2 = 12.03736542
+        dec2 = 35.17363534
+        lens_id2 = self.gg_lens.generate_id(ra=ra2, dec=dec2)
         assert lens_id == f"GG-LENS-{ra:.4f}_{dec:.4f}"
         assert lens_id2 == f"GG-LENS-{ra2:.4f}_{dec2:.4f}"
 
@@ -312,15 +312,17 @@ def test_point_source_magnitude(pes_lens_instance):
     assert len(mag) >= 2
     assert len(mag_unlensed) == 1
 
+
 def test_lens_id_qso(pes_lens_instance):
-        lens_id = pes_lens_instance.generate_id()
-        ra = pes_lens_instance.deflector_position[0]
-        dec = pes_lens_instance.deflector_position[1]
-        ra2=12.03736542
-        dec2=35.17363534
-        lens_id2=pes_lens_instance.generate_id(ra=ra2, dec=dec2)
-        assert lens_id == f"QSO-LENS-{ra:.4f}_{dec:.4f}"
-        assert lens_id2 == f"QSO-LENS-{ra2:.4f}_{dec2:.4f}"
+    lens_id = pes_lens_instance.generate_id()
+    ra = pes_lens_instance.deflector_position[0]
+    dec = pes_lens_instance.deflector_position[1]
+    ra2 = 12.03736542
+    dec2 = 35.17363534
+    lens_id2 = pes_lens_instance.generate_id(ra=ra2, dec=dec2)
+    assert lens_id == f"QSO-LENS-{ra:.4f}_{dec:.4f}"
+    assert lens_id2 == f"QSO-LENS-{ra2:.4f}_{dec2:.4f}"
+
 
 @pytest.fixture
 def supernovae_lens_instance():
@@ -356,6 +358,7 @@ def supernovae_lens_instance():
             break
     return supernovae_lens
 
+
 def test_point_source_magnitude_with_lightcurve(supernovae_lens_instance):
     supernovae_lens = supernovae_lens_instance
     mag = supernovae_lens.point_source_magnitude(band="r", lensed=True)[0]
@@ -538,16 +541,19 @@ def supernovae_lens_instance_double_sersic_multisource():
             break
     return supernovae_lens
 
+
 def test_lens_id_snia(supernovae_lens_instance_double_sersic_multisource):
-        lens_id = supernovae_lens_instance_double_sersic_multisource.generate_id()
-        ra = supernovae_lens_instance_double_sersic_multisource.deflector_position[0]
-        dec = supernovae_lens_instance_double_sersic_multisource.deflector_position[1]
-        ra2=12.03736542
-        dec2=35.17363534
-        lens_id2=supernovae_lens_instance_double_sersic_multisource.generate_id(
-            ra=ra2, dec=dec2)
-        assert lens_id == f"SNIa-LENS-{ra:.4f}_{dec:.4f}"
-        assert lens_id2 == f"SNIa-LENS-{ra2:.4f}_{dec2:.4f}"
+    lens_id = supernovae_lens_instance_double_sersic_multisource.generate_id()
+    ra = supernovae_lens_instance_double_sersic_multisource.deflector_position[0]
+    dec = supernovae_lens_instance_double_sersic_multisource.deflector_position[1]
+    ra2 = 12.03736542
+    dec2 = 35.17363534
+    lens_id2 = supernovae_lens_instance_double_sersic_multisource.generate_id(
+        ra=ra2, dec=dec2
+    )
+    assert lens_id == f"SNIa-LENS-{ra:.4f}_{dec:.4f}"
+    assert lens_id2 == f"SNIa-LENS-{ra2:.4f}_{dec2:.4f}"
+
 
 class TestMultiSource(object):
     def setup_method(self):