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ruby--ruby/test/psych/nodes/test_enumerable.rb

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# frozen_string_literal: true
require 'psych/helper'
module Psych
module Nodes
class TestEnumerable < TestCase
def test_includes_enumerable
yaml = '--- hello'
assert_equal 3, Psych.parse_stream(yaml).to_a.length
end
def test_returns_enumerator
yaml = '--- hello'
assert_equal 3, Psych.parse_stream(yaml).each.map { |x| x }.length
end
def test_scalar
assert_equal 3, calls('--- hello').length
end
def test_sequence
assert_equal 4, calls("---\n- hello").length
end
def test_mapping
assert_equal 5, calls("---\nhello: world").length
end
def test_alias
assert_equal 5, calls("--- &yay\n- foo\n- *yay\n").length
end
private
def calls yaml
calls = []
Psych.parse_stream(yaml).each do |node|
calls << node
end
calls
end
end
end
end