tests/io/bytesio_ext2: Remove dependency on specific EINVAL value

mikewadsten · dpgeorge · commit 9f1eafc38092 · 2018-05-01T15:48:43.000+10:00
If MICROPY_USE_INTERNAL_ERRNO is disabled, MP_EINVAL is not guaranteed
to have the value 22, so we cannot depend on OSError(22,).
Instead, to support any given port's errno values, without relying
on uerrno, we just check that the args[0] is positive.
diff --git a/tests/io/bytesio_ext2.py b/tests/io/bytesio_ext2.py
@@ -10,4 +10,4 @@
     # CPython throws ValueError, but MicroPython has consistent stream
     # interface, so BytesIO raises the same error as a real file, which
     # is OSError(EINVAL).
-    print(repr(e))
+    print(type(e), e.args[0] > 0)
diff --git a/tests/io/bytesio_ext2.py.exp b/tests/io/bytesio_ext2.py.exp
@@ -1 +1 @@
-OSError(22,)
+<class 'OSError'> True
