def capture_glib_warnings(allow_warnings=False, allow_criticals=False):
"""Temporarily suppress glib warning output and record them.
The test suite is run with G_DEBUG="fatal-warnings fatal-criticals"
by default. Setting allow_warnings and allow_criticals will temporarily
allow warnings or criticals without terminating the test run.
"""
old_mask = GLib.log_set_always_fatal(GLib.LogLevelFlags(0))
new_mask = old_mask
if allow_warnings:
new_mask &= ~GLib.LogLevelFlags.LEVEL_WARNING
if allow_criticals:
new_mask &= ~GLib.LogLevelFlags.LEVEL_CRITICAL
GLib.log_set_always_fatal(GLib.LogLevelFlags(new_mask))
GLibWarning = gi._gi._gobject.Warning
try:
with warnings.catch_warnings(record=True) as warn:
warnings.filterwarnings('always', category=GLibWarning)
yield warn
finally:
GLib.log_set_always_fatal(old_mask)
