require 'psych/helper' module Psych class TestTreeBuilder < TestCase def setup super @parser = Psych::Parser.new TreeBuilder.new @parser.parse(<<-eoyml) %YAML 1.1 --- - foo - { bar : &A !!str baz, boo : *A } - *A eoyml @tree = @parser.handler.root end def test_stream assert_instance_of Nodes::Stream, @tree end def test_documents assert_equal 1, @tree.children.length assert_instance_of Nodes::Document, @tree.children.first doc = @tree.children.first assert_equal [1,1], doc.version assert_equal [], doc.tag_directives assert_equal false, doc.implicit end def test_sequence doc = @tree.children.first assert_equal 1, doc.children.length seq = doc.children.first assert_instance_of Nodes::Sequence, seq assert_nil seq.anchor assert_nil seq.tag assert_equal true, seq.implicit assert_equal Nodes::Sequence::BLOCK, seq.style end def test_scalar doc = @tree.children.first seq = doc.children.first assert_equal 3, seq.children.length scalar = seq.children.first assert_instance_of Nodes::Scalar, scalar assert_equal 'foo', scalar.value assert_nil scalar.anchor assert_nil scalar.tag assert_equal true, scalar.plain assert_equal false, scalar.quoted assert_equal Nodes::Scalar::PLAIN, scalar.style end def test_mapping doc = @tree.children.first seq = doc.children.first map = seq.children[1] assert_instance_of Nodes::Mapping, map end def test_alias doc = @tree.children.first seq = doc.children.first assert_equal 3, seq.children.length al = seq.children[2] assert_instance_of Nodes::Alias, al assert_equal 'A', al.anchor end end end