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require 'test_helper'
require 'digest/md5'
class PPMReaderTest < Test::Unit::TestCase
include Term::ANSIColor
def test_loading_ppm6
File.open(example_path('lambda-red.ppm')) do |ppm6|
ppm_reader = PPMReader.new(ppm6)
assert_equal '2035155a4242e498f4852ae8425dac6b',
Digest::MD5.hexdigest(ppm_reader.to_s)
end
end
def test_loading_ppm3
File.open(example_path('lambda-red-plain.ppm')) do |ppm6|
ppm_reader = PPMReader.new(ppm6)
assert_equal '2035155a4242e498f4852ae8425dac6b',
Digest::MD5.hexdigest(ppm_reader.to_s)
end
end
def test_rendering_ppm_without_gray
File.open(example_path('lambda-red.ppm')) do |ppm6|
ppm_reader = PPMReader.new(ppm6, :gray => false)
assert_equal '0653f40e42a87fc480e09db1c58f71ba',
Digest::MD5.hexdigest(ppm_reader.to_s)
end
end
def test_to_a
File.open(example_path('lambda-red.ppm')) do |ppm6|
ppm_reader = PPMReader.new(ppm6, :gray => false)
ary = ppm_reader.to_a
assert_equal 22, ary.size
assert_equal 44, ary.first.size
assert_equal [ 255, 255, 255 ], ary.first.last
end
end
private
def example_path(path = [])
File.expand_path(File.join(File.dirname(__FILE__), '..', 'examples', *path))
end
end
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