tree 56165a0c14fe95a7bff5d12b19cb3b2d9bc13f75
parent 664f3e6312ed9b832b3a9757a7e6b811383826de
author David 'Digit' Turner <digit@google.com> 1780656170 +0200
committer gn-scoped@luci-project-accounts.iam.gserviceaccount.com <gn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1787930654 -0700

standard_out.h: Add ScopedBufferedOuptut class.

This allows buffering all OutputString() outputs to a buffer
instead of sending this to the real stdout. This is useful
for tests that need to call high-level functions that do not
return an Err value but instead invoke OutputString() directly.

Use it here in the Commands.ApplyTypeFilter which polluted the
test's stderr output with Err() dumps to stderr. This will
also be useful in future CLs.

Change-Id: I0333fa15b72149fad7d3fb8349e6cf5231038e08
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/23080
Commit-Queue: David Turner <digit@google.com>
Reviewed-by: Andrew Grieve <agrieve@google.com>