From 3ccce89b831bdccd1feaa41ea23bc5d3ea963b32 Mon Sep 17 00:00:00 2001
From: Jim Mussared <jim.mussared@gmail.com>
Date: Thu, 20 Feb 2020 21:29:30 +1100
Subject: [PATCH] py/objarray: Turn on MP_TYPE_FLAG_EQ_CHECKS_OTHER_TYPE for
 memoryview.

And add corresponding tests.

Fixes #5674 (comparison of memoryview against bytes).
---
 py/objarray.c               |  1 +
 tests/basics/memoryview1.py | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/py/objarray.c b/py/objarray.c
index a6e6fca1c9..760eff8cb1 100644
--- a/py/objarray.c
+++ b/py/objarray.c
@@ -573,6 +573,7 @@ const mp_obj_type_t mp_type_bytearray = {
 #if MICROPY_PY_BUILTINS_MEMORYVIEW
 const mp_obj_type_t mp_type_memoryview = {
     { &mp_type_type },
+    .flags = MP_TYPE_FLAG_EQ_CHECKS_OTHER_TYPE,
     .name = MP_QSTR_memoryview,
     .make_new = memoryview_make_new,
     .getiter = array_iterator_new,
diff --git a/tests/basics/memoryview1.py b/tests/basics/memoryview1.py
index b5314f3e99..1bfeabdfdc 100644
--- a/tests/basics/memoryview1.py
+++ b/tests/basics/memoryview1.py
@@ -107,3 +107,21 @@ try:
     memoryview(b'a').noexist
 except AttributeError:
     print('AttributeError')
+
+# equality
+print(memoryview(b'abc') == b'abc')
+print(memoryview(b'abc') != b'abc')
+print(memoryview(b'abc') == b'xyz')
+print(memoryview(b'abc') != b'xyz')
+print(b'abc' == memoryview(b'abc'))
+print(b'abc' != memoryview(b'abc'))
+print(b'abc' == memoryview(b'xyz'))
+print(b'abc' != memoryview(b'xyz'))
+print(memoryview(b'abcdef')[2:4] == b'cd')
+print(memoryview(b'abcdef')[2:4] != b'cd')
+print(memoryview(b'abcdef')[2:4] == b'xy')
+print(memoryview(b'abcdef')[2:4] != b'xy')
+print(b'cd' == memoryview(b'abcdef')[2:4])
+print(b'cd' != memoryview(b'abcdef')[2:4])
+print(b'xy' == memoryview(b'abcdef')[2:4])
+print(b'xy' != memoryview(b'abcdef')[2:4])