rexml: upgrade to 3.1.8

See https://github.com/ruby/rexml/blob/master/NEWS.md for change summary.

Changes for spec/ has been reported: https://github.com/ruby/spec/pull/639


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66458 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 14 insertions, 0 deletions

diff --git a/test/rexml/test_attribute.rb b/test/rexml/test_attribute.rb
new file mode 100644
index 0000000000..5175bd4454
--- /dev/null
+++ b/test/rexml/test_attribute.rb
@@ -0,0 +1,14 @@
+require_relative "rexml_test_utils"
+
+module REXMLTests
+  class AttributeTest < Test::Unit::TestCase
+    def test_empty_prefix
+      error = assert_raise(ArgumentError) do
+        REXML::Attribute.new(":x")
+      end
+      assert_equal("name must be " +
+                   "\#{PREFIX}:\#{LOCAL_NAME} or \#{LOCAL_NAME}: <\":x\">",
+                   error.message)
+    end
+  end
+end