diff --git a/pvanalytics/tests/features/test_daytime.py b/pvanalytics/tests/features/test_daytime.py
index 54304f2e..b5a4aeeb 100644
--- a/pvanalytics/tests/features/test_daytime.py
+++ b/pvanalytics/tests/features/test_daytime.py
@@ -254,8 +254,8 @@ def test_get_sunrise_left_alignment(daytime_mask_left_aligned):
     sunrise_left_aligned = daytime.get_sunrise(daytime_mask_left_aligned,
                                                data_alignment='L')
     # Assert that the output time series index is the same as the input
-    assert pd.testing.assert_index_equal(sunrise_left_aligned.index,
-                                         daytime_mask_left_aligned.index)
+    pd.testing.assert_index_equal(sunrise_left_aligned.index,
+                                  daytime_mask_left_aligned.index)
     # Check that the output matches expected
     sunrise_3_19 = sunrise_left_aligned[sunrise_left_aligned.index.date ==
                                         date(2022, 3, 19)]
@@ -267,8 +267,8 @@ def test_get_sunrise_center_alignment(daytime_mask_center_aligned):
     sunrise_center_aligned = daytime.get_sunrise(daytime_mask_center_aligned,
                                                  data_alignment='C')
     # Assert that the output time series index is the same as the input
-    assert pd.testing.assert_index_equal(sunrise_center_aligned.index,
-                                         daytime_mask_center_aligned.index)
+    pd.testing.assert_index_equal(sunrise_center_aligned.index,
+                                  daytime_mask_center_aligned.index)
     # Check that the output matches expected
     sunrise_3_19 = sunrise_center_aligned[sunrise_center_aligned.index.date ==
                                           date(2022, 3, 19)]
@@ -293,8 +293,8 @@ def test_get_sunset_left_alignment(daytime_mask_left_aligned):
     sunset_left_aligned = daytime.get_sunset(daytime_mask_left_aligned,
                                              data_alignment='L')
     # Assert that the output time series index is the same as the input
-    assert pd.testing.assert_index_equal(sunset_left_aligned.index,
-                                         daytime_mask_left_aligned.index)
+    pd.testing.assert_index_equal(sunset_left_aligned.index,
+                                  daytime_mask_left_aligned.index)
     # Check that the output matches expected
     sunset_3_19 = sunset_left_aligned[sunset_left_aligned.index.date ==
                                       date(2022, 3, 19)]
@@ -306,8 +306,8 @@ def test_get_sunset_center_alignment(daytime_mask_center_aligned):
     sunset_center_aligned = daytime.get_sunset(daytime_mask_center_aligned,
                                                data_alignment='C')
     # Assert that the output time series index is the same as the input
-    assert pd.testing.assert_index_equal(sunset_center_aligned.index,
-                                         daytime_mask_center_aligned.index)
+    pd.testing.assert_index_equal(sunset_center_aligned.index,
+                                  daytime_mask_center_aligned.index)
     # Check that the output matches expected
     sunset_3_19 = sunset_center_aligned[sunset_center_aligned.index.date ==
                                         date(2022, 3, 19)]
@@ -319,8 +319,8 @@ def test_get_sunset_right_alignment(daytime_mask_right_aligned):
     sunset_right_aligned = daytime.get_sunset(daytime_mask_right_aligned,
                                               data_alignment='R')
     # Assert that the output time series index is the same as the input
-    assert pd.testing.assert_index_equal(sunset_right_aligned.index,
-                                         daytime_mask_right_aligned.index)
+    pd.testing.assert_index_equal(sunset_right_aligned.index,
+                                  daytime_mask_right_aligned.index)
     # Check that the output matches expected
     sunset_3_19 = sunset_right_aligned[sunset_right_aligned.index.date ==
                                        date(2022, 3, 19)]