Add method aliases to tiledb.VFS (#1902)

* Add failing tests for aliases

* Add aliases to make tests pass

HISTORY.md

@@ -1,3 +1,9 @@
+# Next
+
+## Improvements
+
+* For compatibility with fsspec and rasterio, `isdir()`, `isfile()`, and `size()` aliases have been added to the `VFS` class (#1902).
+
 # Release 0.26.1
 
 * TileDB-Py 0.26.1 includes TileDB Embedded [2.20.1](https://github.com/TileDB-Inc/TileDB/releases/tag/2.20.1)

tiledb/tests/test_vfs.py

@@ -287,3 +287,26 @@ def test_open_with(self):
             with self.assertRaises(IOError):
                 fio.write(b"foo")
             self.assertEqual(fio.read(len(buffer)), buffer)
+
+
+def test_vfs_isdir(tmp_path):
+    """isdir is an alias for is_dir."""
+    fs = tiledb.VFS()
+    assert fs.isdir(tmp_path.as_posix())
+
+
+def test_vfs_isfile(tmp_path):
+    """isfile is an alias for is_file."""
+    tmp_file = tmp_path.joinpath("foo")
+    tmp_file.touch()
+    fs = tiledb.VFS()
+    assert fs.isfile(tmp_file.as_posix())
+
+
+def test_vfs_size(tmp_path):
+    """size is an alias for file_size."""
+    tmp_file = tmp_path.joinpath("foo")
+    buffer = b"0123456789"
+    tmp_file.write_bytes(buffer)
+    fs = tiledb.VFS()
+    assert fs.size(tmp_file.as_posix()) == len(buffer)

tiledb/vfs.py

@@ -304,6 +304,11 @@ def touch(self, uri: _AnyPath):
         """
         return self._touch(_to_path_str(uri))
 
+    # Aliases for compatibility with fsspec's AbstractFileSystem.
+    isdir = is_dir
+    isfile = is_file
+    size = file_size
+
 
 class FileIO(io.RawIOBase):
     """TileDB FileIO class that encapsulates files opened by tiledb.VFS. The file