* ext/psych/*: importing Psych to trunk

* test/psych/*: ditto
* lib/psych/*: ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27079 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 79 insertions, 0 deletions

diff --git a/test/psych/test_tree_builder.rb b/test/psych/test_tree_builder.rb
new file mode 100644
index 0000000000..f03adc56df
--- /dev/null
+++ b/test/psych/test_tree_builder.rb
@@ -0,0 +1,79 @@
+require 'test/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