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tests/v2/test_0733-run_lengths.py

@@ -11,7 +11,15 @@ def test():
     assert ak._v2.operations.structure.run_lengths(array).tolist() == [3, 2, 4, 1, 2]
 
     array = ak._v2.Array([[3, 3, 3, 5], [5], [], [9, 9], [9, 9], [1, 3, 3]])
-    assert ak._v2.operations.structure.run_lengths(array).tolist() == [[3, 1], [1], [], [2], [2], [1, 2]]
+    assert ak._v2.operations.structure.run_lengths(array).tolist() == [
+        [3, 1],
+        [1],
+        [],
+        [2],
+        [2],
+        [1, 2],
+    ]
+
 
 @pytest.mark.skip(reason="ak.unflatten unimplemented")
 def test_groupby():
@@ -28,7 +36,9 @@ def test_groupby():
     sorted = array[ak._v2.operations.structure.argsort(array.x)]
     assert sorted.x.tolist() == [1, 1, 1, 2, 2, 3]
     assert ak._v2.operations.structure.run_lengths(sorted.x).tolist() == [3, 2, 1]
-    assert ak.unflatten(sorted, ak._v2.operations.structure.run_lengths(sorted.x)).tolist() == [
+    assert ak.unflatten(
+        sorted, ak._v2.operations.structure.run_lengths(sorted.x)
+    ).tolist() == [
         [{"x": 1, "y": 1.1}, {"x": 1, "y": 1.1}, {"x": 1, "y": 1.1}],
         [{"x": 2, "y": 2.2}, {"x": 2, "y": 2.2}],
         [{"x": 3, "y": 3.3}],
@@ -42,8 +52,13 @@ def test_groupby():
     )
     sorted = array[ak._v2.operations.structure.argsort(array.x)]
     assert sorted.x.tolist() == [[1, 1, 2], [1, 2, 3]]
-    assert ak._v2.operations.structure.run_lengths(sorted.x).tolist() == [[2, 1], [1, 1, 1]]
-    counts = ak._v2.operations.structure.flatten(ak._v2.operations.structure.run_lengths(sorted.x), axis=None)
+    assert ak._v2.operations.structure.run_lengths(sorted.x).tolist() == [
+        [2, 1],
+        [1, 1, 1],
+    ]
+    counts = ak._v2.operations.structure.flatten(
+        ak._v2.operations.structure.run_lengths(sorted.x), axis=None
+    )
     assert ak.unflatten(sorted, counts, axis=-1).tolist() == [
         [[{"x": 1, "y": 1.1}, {"x": 1, "y": 1.1}], [{"x": 2, "y": 2.2}]],
         [[{"x": 1, "y": 1.1}], [{"x": 2, "y": 2.2}], [{"x": 3, "y": 3.3}]],
@@ -59,5 +74,11 @@ def test_onstrings1():
 
 
 def test_onstrings2():
-    data = ak._v2.Array([["one", "one"], ["one", "two", "two"], ["three", "two", "two"]])
-    assert ak._v2.operations.structure.run_lengths(data).tolist() == [[2], [1, 2], [1, 2]]
+    data = ak._v2.Array(
+        [["one", "one"], ["one", "two", "two"], ["three", "two", "two"]]
+    )
+    assert ak._v2.operations.structure.run_lengths(data).tolist() == [
+        [2],
+        [1, 2],
+        [1, 2],
+    ]