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-rw-r--r--test/ruby/test_io_m17n.rb8
1 files changed, 8 insertions, 0 deletions
diff --git a/test/ruby/test_io_m17n.rb b/test/ruby/test_io_m17n.rb
index fb99c0cd6d..a91fccee5f 100644
--- a/test/ruby/test_io_m17n.rb
+++ b/test/ruby/test_io_m17n.rb
@@ -2107,6 +2107,14 @@ EOT
open(IO::NULL, "w:bom|us-ascii") {|f| enc = f.external_encoding}
}
assert_equal(Encoding::US_ASCII, enc)
+
+ tlhInganHol = "\u{f8e4 f8d9 f8d7 f8dc f8d0 f8db} \u{f8d6 f8dd f8d9}"
+ EnvUtil.with_default_external(Encoding::UTF_8) {
+ assert_warn(/#{tlhInganHol}/) {
+ open(IO::NULL, "w:bom|#{tlhInganHol}") {|f| enc = f.external_encoding}
+ }
+ }
+ assert_nil(enc)
end
def test_cbuf