summaryrefslogtreecommitdiff
path: root/test/visitors/test_emitter.rb
blob: e79a7b5cefa643e2618c8fe723fba961805a1bb3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
require 'minitest/autorun'
require 'psych'

module Psych
  module Visitors
    class TestEmitter < MiniTest::Unit::TestCase
      def setup
        @io = StringIO.new
        @visitor = Visitors::Emitter.new @io
      end

      def test_stream
        s = Nodes::Stream.new
        @visitor.accept s
        assert_equal '', @io.string
      end

      def test_document
        s       = Nodes::Stream.new
        doc     = Nodes::Document.new [1,1]
        scalar  = Nodes::Scalar.new 'hello world'

        doc.children << scalar
        s.children << doc

        @visitor.accept s

        assert_match(/1.1/, @io.string)
        assert_equal @io.string, s.to_yaml
      end

      def test_document_implicit_end
        s       = Nodes::Stream.new
        doc     = Nodes::Document.new
        mapping = Nodes::Mapping.new
        mapping.children << Nodes::Scalar.new('key')
        mapping.children << Nodes::Scalar.new('value')
        doc.children << mapping
        s.children << doc

        @visitor.accept s

        assert_match(/key: value/, @io.string)
        assert_equal @io.string, s.to_yaml
        assert(/\.\.\./ !~ s.to_yaml)
      end

      def test_scalar
        s       = Nodes::Stream.new
        doc     = Nodes::Document.new
        scalar  = Nodes::Scalar.new 'hello world'

        doc.children << scalar
        s.children << doc

        @visitor.accept s

        assert_match(/hello/, @io.string)
        assert_equal @io.string, s.to_yaml
      end

      def test_sequence
        s       = Nodes::Stream.new
        doc     = Nodes::Document.new
        scalar  = Nodes::Scalar.new 'hello world'
        seq     = Nodes::Sequence.new

        seq.children << scalar
        doc.children << seq
        s.children << doc

        @visitor.accept s

        assert_match(/- hello/, @io.string)
        assert_equal @io.string, s.to_yaml
      end

      def test_mapping
        s       = Nodes::Stream.new
        doc     = Nodes::Document.new
        mapping = Nodes::Mapping.new
        mapping.children << Nodes::Scalar.new('key')
        mapping.children << Nodes::Scalar.new('value')
        doc.children << mapping
        s.children << doc

        @visitor.accept s

        assert_match(/key: value/, @io.string)
        assert_equal @io.string, s.to_yaml
      end

      def test_alias
        s       = Nodes::Stream.new
        doc     = Nodes::Document.new
        mapping = Nodes::Mapping.new
        mapping.children << Nodes::Scalar.new('key', 'A')
        mapping.children << Nodes::Alias.new('A')
        doc.children << mapping
        s.children << doc

        @visitor.accept s

        assert_match(/&A key: \*A/, @io.string)
        assert_equal @io.string, s.to_yaml
      end
    end
  end
end