diff options
Diffstat (limited to 'test/ruby')
-rw-r--r-- | test/ruby/test_io.rb | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb index 0325867496..c62edbba00 100644 --- a/test/ruby/test_io.rb +++ b/test/ruby/test_io.rb @@ -1975,4 +1975,21 @@ End write_file.close file.close! end + + def test_warn + stderr = EnvUtil.verbose_warning do + warn "warning" + end + assert_equal("warning\n", stderr) + + stderr = EnvUtil.verbose_warning do + warn + end + assert_equal("", stderr) + + stderr = EnvUtil.verbose_warning do + warn "[Feature #5029]", "[ruby-core:38070]" + end + assert_equal("[Feature #5029]\n[ruby-core:38070]\n", stderr) + end end |