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-rw-r--r--test/ruby/test_io_m17n.rb4
1 files changed, 3 insertions, 1 deletions
diff --git a/test/ruby/test_io_m17n.rb b/test/ruby/test_io_m17n.rb
index eeec26d61e..6d3589580e 100644
--- a/test/ruby/test_io_m17n.rb
+++ b/test/ruby/test_io_m17n.rb
@@ -1545,7 +1545,9 @@ EOT
srcbin = src.dup.force_encoding("ascii-8bit")
open("t.txt", "rt:utf-8:euc-jp") {|f|
f.binmode
- assert_str_equal(srcbin, f.read)
+ result = f.read
+ assert_str_equal(srcbin, result)
+ assert_equal(Encoding::ASCII_8BIT, result.encoding)
}
}
end