code: def test_make_block_boundary(self, i):
      idx = make_sparse_index(
          i, np.arange(0, i, 2, dtype=np.int32), kind="block"
      )
  
      exp = np.arange(0, i, 2, dtype=np.int32)
      tm.assert_numpy_array_equal(idx.blocs, exp)
      tm.assert_numpy_array_equal(
          idx.blengths, np.ones(len(exp), dtype=np.int32)
      )
  
imports: import operator
  import numpy
  import pytest
  import pandas._libs.sparse
  import pandas.util._test_decorators
  from pandas import Series
  import pandas._testing
  from pandas.core.arrays.sparse import BlockIndex, IntIndex, make_sparse_index
label_desc: Use image node_id 2 for calling the TestBlockIndex obj's underlying member method code with example usage: obj.test_make_block_boundary(i) without return types