test.rb

require 'epeg'
require 'test/unit'

class TestEpeg < Test::Unit::TestCase
	def setup
		@epeg = Epeg.new('test.jpg')
	end
	def test_new
		assert_equal(Epeg, @epeg.class)
	end
	def test_size
		assert_equal(@epeg.size, [182, 170])
	end
	def test_finish
		assert(@epeg.finish)
		assert_raises(StandardError) { @epeg.finish }
	end
	def test_output_size
		assert_nothing_raised { @epeg.set_output_size(16,16) }
		@epeg.finish
		assert_raises(StandardError) { @epeg.set_output_size(16,16) }
	end
	def test_finish_return
		@epeg.set_output_size(128,128)
		assert_equal(Epeg.thumbnail('test.jpg', 128, 128), @epeg.finish)
	end
end

class TestEpegBad < Test::Unit::TestCase
	def test_bad_file
		assert_raises(StandardError) {
			Epeg.new('/dev/null')
		}
	end

	def test_nonexistant_file
		assert_raises(StandardError) {
			Epeg.new('/askdfhalskdfhasldfahsdf')
		}
	end
end