Simplify test

Author: hmaarrfk

xarray/tests/test_dataarray.py

@@ -3261,19 +3261,18 @@ def test_from_series_sparse(self) -> None:
 
     @requires_sparse
     def test_sparse_nbytes(self) -> None:
+        # https://github.com/pydata/xarray/issues/4842#issue-793245791
         df = pd.DataFrame()
-        df["x"] = np.repeat(np.random.rand(10_000), 10)
-        df["y"] = np.repeat(np.random.rand(10_000), 10)
-        df["time"] = np.tile(
-            pd.date_range("2000-01-01", "2000-03-10", freq="W"), 10_000
-        )
+        df["x"] = np.repeat(np.random.rand(10), 10)
+        df["y"] = np.repeat(np.random.rand(10), 10)
+        df["time"] = np.tile(pd.date_range("2000-01-01", "2000-03-10", freq="W"), 10)
         df["rate"] = 10.0
         df = df.set_index(["time", "y", "x"])
 
         sparse_ds = xr.Dataset.from_dataframe(df, sparse=True)
         rate = sparse_ds["rate"]
-        assert rate.nbytes < 8000000000
-        assert rate.size * rate.dtype.itemsize == 8000000000
+        assert rate.nbytes < 8000
+        assert rate.size * rate.dtype.itemsize == 8000
 
     @requires_sparse
     def test_from_multiindex_series_sparse(self) -> None: