require 'helper'

class TestExpectr < Test::Unit::TestCase
	def setup
		@exp = Expectr.new "ls /bin", :flush_buffer => false, :timeout => 2, :buffer_size => 4096
	end

	def test_execution
		assert_equal @exp.flush_buffer, false
		assert_equal @exp.timeout, 2
		assert_equal @exp.buffer_size, 4096
	end

	def test_match
		assert_not_equal @exp.expect(/sh/), nil
		assert_not_equal @exp.discard, ''
	end

	def test_match_failure
		assert_raises(Timeout::Error) { @exp.expect /ThisFileShouldNotExist/ }
		assert_nothing_raised { @exp.expect /ThisFileShouldNotExist/, true }
	end

	def test_send
		exp = Expectr.new "bc", :flush_buffer => false
		exp.send "20+301\n"
		exp.expect /321/
	end

	def test_clear_buffer
		sleep 1
		assert_not_equal @exp.buffer, ''
		@exp.clear_buffer
		assert_equal @exp.buffer, ''
	end

	def test_pid_set
		assert @exp.pid > 0
	end

	def test_interact
		exp = Expectr.new "bc", :flush_buffer => false
		[
			Thread.new {
				sleep 1
				exp.interact
			},
			Thread.new {
				sleep 2
				assert_equal exp.flush_buffer, true
				exp.flush_buffer = false
				exp.send "300+21\n"
				exp.send "quit\n"
			}
		].each {|x| x.join}

		assert_not_nil exp.expect /321/
	end
end