require 'psych/helper' module Psych module Visitors class TestYAMLTree < TestCase def setup super @v = Visitors::YAMLTree.create end def test_tree_can_be_called_twice @v.start @v << Object.new t = @v.tree assert_equal t, @v.tree end def test_yaml_tree_can_take_an_emitter io = StringIO.new e = Psych::Emitter.new io v = Visitors::YAMLTree.create({}, e) v.start v << "hello world" v.finish assert_match "hello world", io.string end def test_binary_formatting gif = "GIF89a\f\x00\f\x00\x84\x00\x00\xFF\xFF\xF7\xF5\xF5\xEE\xE9\xE9\xE5fff\x00\x00\x00\xE7\xE7\xE7^^^\xF3\xF3\xED\x8E\x8E\x8E\xE0\xE0\xE0\x9F\x9F\x9F\x93\x93\x93\xA7\xA7\xA7\x9E\x9E\x9Eiiiccc\xA3\xA3\xA3\x84\x84\x84\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9\xFF\xFE\xF9!\xFE\x0EMade with GIMP\x00,\x00\x00\x00\x00\f\x00\f\x00\x00\x05, \x8E\x810\x9E\xE3@\x14\xE8i\x10\xC4\xD1\x8A\b\x1C\xCF\x80M$z\xEF\xFF0\x85p\xB8\xB01f\r\e\xCE\x01\xC3\x01\x1E\x10' \x82\n\x01\x00;" @v << gif scalar = @v.tree.children.first.children.first assert_equal Psych::Nodes::Scalar::LITERAL, scalar.style end def test_object_has_no_class yaml = Psych.dump(Object.new) assert(Psych.dump(Object.new) !~ /Object/, yaml) end def test_struct_const foo = Struct.new("Foo", :bar) assert_cycle foo.new('bar') Struct.instance_eval { remove_const(:Foo) } end A = Struct.new(:foo) def test_struct assert_cycle A.new('bar') end def test_struct_anon s = Struct.new(:foo).new('bar') obj = Psych.load(Psych.dump(s)) assert_equal s.foo, obj.foo end def test_override_method s = Struct.new(:method).new('override') obj = Psych.load(Psych.dump(s)) assert_equal s.method, obj.method end def test_exception ex = Exception.new 'foo' loaded = Psych.load(Psych.dump(ex)) assert_equal ex.message, loaded.message assert_equal ex.class, loaded.class end def test_regexp assert_cycle(/foo/) assert_cycle(/foo/i) assert_cycle(/foo/mx) end def test_time t = Time.now assert_equal t, Psych.load(Psych.dump(t)) end def test_date date = Date.strptime('2002-12-14', '%Y-%m-%d') assert_cycle date end def test_rational assert_cycle Rational(1,2) end def test_complex assert_cycle Complex(1,2) end def test_scalar assert_cycle 'foo' assert_cycle ':foo' assert_cycle '' assert_cycle ':' end def test_boolean assert_cycle true assert_cycle 'true' assert_cycle false assert_cycle 'false' end def test_range_inclusive assert_cycle 1..2 end def test_range_exclusive assert_cycle 1...2 end def test_anon_class assert_raises(TypeError) do @v.accept Class.new end assert_raises(TypeError) do Psych.dump(Class.new) end end def test_hash assert_cycle('a' => 'b') end def test_list assert_cycle(%w{ a b }) assert_cycle([1, 2.2]) end def test_symbol assert_cycle :foo end def test_int assert_cycle 1 assert_cycle(-1) assert_cycle '1' assert_cycle '-1' end def test_float assert_cycle 1.2 assert_cycle '1.2' assert Psych.load(Psych.dump(0.0 / 0.0)).nan? assert_equal 1, Psych.load(Psych.dump(1 / 0.0)).infinite? assert_equal(-1, Psych.load(Psych.dump(-1 / 0.0)).infinite?) end # http://yaml.org/type/null.html def test_nil assert_cycle nil assert_equal nil, Psych.load('null') assert_equal nil, Psych.load('Null') assert_equal nil, Psych.load('NULL') assert_equal nil, Psych.load('~') assert_equal({'foo' => nil}, Psych.load('foo: ')) assert_cycle 'null' assert_cycle 'nUll' assert_cycle '~' end end end end