diff --git a/tests/io/buffered_writer.py b/tests/basics/io_buffered_writer.py similarity index 100% rename from tests/io/buffered_writer.py rename to tests/basics/io_buffered_writer.py diff --git a/tests/io/buffered_writer.py.exp b/tests/basics/io_buffered_writer.py.exp similarity index 100% rename from tests/io/buffered_writer.py.exp rename to tests/basics/io_buffered_writer.py.exp diff --git a/tests/io/bytesio_cow.py b/tests/basics/io_bytesio_cow.py similarity index 100% rename from tests/io/bytesio_cow.py rename to tests/basics/io_bytesio_cow.py diff --git a/tests/io/bytesio_ext.py b/tests/basics/io_bytesio_ext.py similarity index 100% rename from tests/io/bytesio_ext.py rename to tests/basics/io_bytesio_ext.py diff --git a/tests/io/bytesio_ext2.py b/tests/basics/io_bytesio_ext2.py similarity index 100% rename from tests/io/bytesio_ext2.py rename to tests/basics/io_bytesio_ext2.py diff --git a/tests/io/bytesio_ext2.py.exp b/tests/basics/io_bytesio_ext2.py.exp similarity index 100% rename from tests/io/bytesio_ext2.py.exp rename to tests/basics/io_bytesio_ext2.py.exp diff --git a/tests/io/iobase.py b/tests/basics/io_iobase.py similarity index 100% rename from tests/io/iobase.py rename to tests/basics/io_iobase.py diff --git a/tests/io/stringio1.py b/tests/basics/io_stringio1.py similarity index 100% rename from tests/io/stringio1.py rename to tests/basics/io_stringio1.py diff --git a/tests/io/stringio_with.py b/tests/basics/io_stringio_with.py similarity index 100% rename from tests/io/stringio_with.py rename to tests/basics/io_stringio_with.py diff --git a/tests/io/write_ext.py b/tests/basics/io_write_ext.py similarity index 100% rename from tests/io/write_ext.py rename to tests/basics/io_write_ext.py diff --git a/tests/io/write_ext.py.exp b/tests/basics/io_write_ext.py.exp similarity index 100% rename from tests/io/write_ext.py.exp rename to tests/basics/io_write_ext.py.exp