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# frozen_string_literal: true
require_relative 'helper'
module Psych
class TestStream < TestCase
def test_parse_partial
rb = Psych.parse("--- foo\n...\n--- `").to_ruby
assert_equal 'foo', rb
end
def test_load_partial
rb = Psych.load("--- foo\n...\n--- `")
assert_equal 'foo', rb
end
def test_parse_stream_yields_documents
list = []
Psych.parse_stream("--- foo\n...\n--- bar") do |doc|
list << doc.to_ruby
end
assert_equal %w{ foo bar }, list
end
def test_parse_stream_break
list = []
Psych.parse_stream("--- foo\n...\n--- `") do |doc|
list << doc.to_ruby
break
end
assert_equal %w{ foo }, list
end
def test_load_stream_yields_documents
list = []
Psych.load_stream("--- foo\n...\n--- bar") do |ruby|
list << ruby
end
assert_equal %w{ foo bar }, list
end
def test_load_stream_break
list = []
Psych.load_stream("--- foo\n...\n--- `") do |ruby|
list << ruby
break
end
assert_equal %w{ foo }, list
end
def test_explicit_documents
io = StringIO.new
stream = Psych::Stream.new(io)
stream.start
stream.push({ 'foo' => 'bar' })
assert !stream.finished?, 'stream not finished'
stream.finish
assert stream.finished?, 'stream finished'
assert_match(/^---/, io.string)
assert_match(/\.\.\.$/, io.string)
end
def test_start_takes_block
io = StringIO.new
stream = Psych::Stream.new(io)
stream.start do |emitter|
emitter.push({ 'foo' => 'bar' })
end
assert stream.finished?, 'stream finished'
assert_match(/^---/, io.string)
assert_match(/\.\.\.$/, io.string)
end
def test_no_backreferences
io = StringIO.new
stream = Psych::Stream.new(io)
stream.start do |emitter|
x = { 'foo' => 'bar' }
emitter.push x
emitter.push x
end
assert stream.finished?, 'stream finished'
assert_match(/^---/, io.string)
assert_match(/\.\.\.$/, io.string)
assert_equal 2, io.string.scan('---').length
assert_equal 2, io.string.scan('...').length
assert_equal 2, io.string.scan('foo').length
assert_equal 2, io.string.scan('bar').length
end
end
end
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