[Qemu-devel] qapi-scheme/unicode-str test failure due to mismatch between e-acute and \xe9

[Peter Maydell]

I just ran into this test failure:

PYTHONPATH=/home/linux1/qemu/scripts python3 -B
/home/linux1/qemu/tests/qapi-schema/test-qapi.py
/home/linux1/qemu/tests/qapi-schema/unicode-str.json
>tests/qapi-schema/unicode-str.test.out
2>tests/qapi-schema/unicode-str.test.err; echo $?
>tests/qapi-schema/unicode-str.test.exit
--- /home/linux1/qemu/tests/qapi-schema/unicode-str.err    2017-07-06
10:23:13.601812330 -0400
+++ -    2019-05-07 18:32:31.533125931 -0400
@@ -1 +1 @@
-tests/qapi-schema/unicode-str.json:2: 'command' uses invalid name 'é'
+tests/qapi-schema/unicode-str.json:2: 'command' uses invalid name '\xe9'
/home/linux1/qemu/tests/Makefile.include:1105: recipe for target
'check-tests/qapi-schema/unicode-str.json' failed
make: *** [check-tests/qapi-schema/unicode-str.json] Error 1
make: Leaving directory '/home/linux1/qemu/build/all'

but oddly only when I ran 'make check' by logging directly
into this machine (usually I run the tests automatically
via ssh and scripting), which suggests it may depend
on the locale settings. Does anybody recognize this ?
I think LANG=C fails, but LANG=C.UTF-8 passes.

Ideally our test suite should not depend on the locale
or environment settings of the user running it.

thanks
-- PMM