Created attachment 352955 [details] [review]
tests/gststructure: add unit test to verify deserialization of a stream-status message

I came across this warning in some project and wrote a quick unit test to verify it's an upstream bug. I have not investigated it further yet.

The test case is basically this:
Take a new stream-status GstMessage, get its GstStructure, serialize it to a string, then try to parse this string back to a GstStructure.

Although the serialized string is ok (see the SERIALIZED line below), parsing it fails and shows a strange, corrupt string in the warning message

Running suite(s): GstStructure
SERIALIZED: GstMessageStreamStatus, type=(GstStreamStatusType)GST_STREAM_STATUS_TYPE_CREATE, owner=(GstElement)"\(GstBin\)\ element1", object=(GstTask)"\(GstTask\)\ task0";
0:00:00.002331102 12023 0x564706dfc320 WARN               structure gststructure.c:1967:gst_structure_parse_field: failed to parse value owner=(GstElement)(GstBin) element1ent1", object=(GstTask)"\(GstTask\)\ task0";
0:00:00.002404953 12023 0x564706dfc320 WARN               structure gststructure.c:2035:priv_gst_structure_parse_fields: Failed to parse field, r=owner=(GstElement)(GstBin) element1ent1", object=(GstTask)"\(GstTask\)\ task0";
0%: Checks: 1, Failures: 1, Errors: 0
gst/gststructure.c:357:F:general:test_to_from_string_stream_status_message:0: Assertion 'st2 != NULL' failed