require "rexml/document" require "test/unit" class REXML::TestDocument < Test::Unit::TestCase def test_new doc = REXML::Document.new(<<EOF) <?xml version="1.0" encoding="UTF-8"?> <message>Hello world!</message> EOF assert_equal("Hello world!", doc.root.children.first.value) end XML_WITH_NESTED_ENTITY = <<EOF <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE member [ <!ENTITY a "&b;&b;&b;&b;&b;&b;&b;&b;&b;&b;"> <!ENTITY b "&c;&c;&c;&c;&c;&c;&c;&c;&c;&c;"> <!ENTITY c "&d;&d;&d;&d;&d;&d;&d;&d;&d;&d;"> <!ENTITY d "&e;&e;&e;&e;&e;&e;&e;&e;&e;&e;"> <!ENTITY e "&f;&f;&f;&f;&f;&f;&f;&f;&f;&f;"> <!ENTITY f "&g;&g;&g;&g;&g;&g;&g;&g;&g;&g;"> <!ENTITY g "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"> ]> <member> &a; </member> EOF XML_WITH_4_ENTITY_EXPANSION = <<EOF <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE member [ <!ENTITY a "a"> <!ENTITY a2 "&a; &a;"> ]> <member> &a; &a2; < </member> EOF def test_entity_expansion_limit doc = REXML::Document.new(XML_WITH_NESTED_ENTITY) assert_raise(RuntimeError) do doc.root.children.first.value end REXML::Document.entity_expansion_limit = 100 assert_equal(100, REXML::Document.entity_expansion_limit) doc = REXML::Document.new(XML_WITH_NESTED_ENTITY) assert_raise(RuntimeError) do doc.root.children.first.value end assert_equal(101, doc.entity_expansion_count) REXML::Document.entity_expansion_limit = 4 doc = REXML::Document.new(XML_WITH_4_ENTITY_EXPANSION) assert_equal("\na\na a\n<\n", doc.root.children.first.value) REXML::Document.entity_expansion_limit = 3 doc = REXML::Document.new(XML_WITH_4_ENTITY_EXPANSION) assert_raise(RuntimeError) do doc.root.children.first.value end ensure REXML::Document.entity_expansion_limit = 10000 end end