TST: Fix sparse quantile test

Author: Licht-T

pandas/tests/sparse/test_frame.py

@@ -1706,7 +1706,7 @@ def test_where_with_bool_data_and_complex_other(self):
 
     def test_quantile(self):
         # GH 17386
-        data = [[1, 1], [2, 10], [3, 100], [4, 100]]
+        data = [[1, 1], [2, 10], [3, 100], [nan, nan]]
         q = 0.1
 
         sparse_df = SparseDataFrame(data)
@@ -1719,7 +1719,7 @@ def test_quantile(self):
 
     def test_quantile_multi(self):
         # GH 17386
-        data = [[1, 1], [2, 10], [3, 100], [4, 100]]
+        data = [[1, 1], [2, 10], [3, 100], [nan, nan]]
         q = [0.1, 0.5]
 
         sparse_df = SparseDataFrame(data)