diff --git a/test/ruby/test_file.rb b/test/ruby/test_file.rb
index 54983d6..d66591b 100644
--- a/test/ruby/test_file.rb
+++ b/test/ruby/test_file.rb
@@ -38,6 +38,58 @@ class TestFile < Test::Unit::TestCase
 
   include TestEOF::Seek
 
+  def test_empty_file_bom
+    f = Tempfile.new(__method__.to_s)
+    assert File.exists? f.path
+    assert_equal '', File.open(f.path, 'r:utf-8') { |f| f.read }
+    assert_equal '', File.open(f.path, 'r:bom|utf-8') { |f| f.read }
+    f.close(true)
+  end
+
+  def test_bad_bom_8
+    f = Tempfile.new(__method__.to_s)
+    f.sync = true
+
+    [0xEF, 0xBB].each do |x|
+      f.write x.chr
+      assert File.new(f.path, 'r:bom|utf-8').close
+    end
+    f.close(true)
+  end
+
+  def test_bad_bom_16
+    f = Tempfile.new(__method__.to_s)
+    f.sync = true
+
+    [0xFE].each do |x|
+      f.write x.chr
+      assert File.new(f.path, 'r:bom|utf-8').close
+    end
+    f.close(true)
+  end
+
+  def test_bad_bom_32le
+    f = Tempfile.new(__method__.to_s)
+    f.sync = true
+
+    [0xFF, 0xFE, 0].each do |x|
+      f.write x.chr
+      assert File.new(f.path, 'r:bom|utf-8').close
+    end
+    f.close(true)
+  end
+
+  def test_bad_bom_32be
+    f = Tempfile.new(__method__.to_s)
+    f.sync = true
+
+    [0x0, 0xFE].each do |x|
+      f.write x.chr
+      assert File.new(f.path, 'r:bom|utf-8').close
+    end
+    f.close(true)
+  end
+
   def test_truncate_wbuf
     f = Tempfile.new("test-truncate")
     f.print "abc"