tests/basics: Skip tests of io module individually using SKIP.

Instead of using a feature check.  This is more consistent with how other
optional modules are skipped.

Signed-off-by: Damien George <damien@micropython.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/tests/basics/io_bytesio_cow.py b/tests/basics/io_bytesio_cow.py
index 2edb7136a..543c12ad4 100644
--- a/tests/basics/io_bytesio_cow.py
+++ b/tests/basics/io_bytesio_cow.py
@@ -1,6 +1,12 @@
 # Make sure that write operations on io.BytesIO don't
 # change original object it was constructed from.
-import io
+
+try:
+    import io
+except ImportError:
+    print("SKIP")
+    raise SystemExit
+
 b = b"foobar"
 
 a = io.BytesIO(b)