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Contents
require 'spec_helper'
describe FormatParser::DPXParser do
Dir.glob(fixtures_dir + '/dpx/*.*').each do |dpx_path|
it "is able to parse #{File.basename(dpx_path)}" do
parsed = subject.call(File.open(dpx_path, 'rb'))
expect(parsed).not_to be_nil
expect(parsed.nature).to eq(:image)
expect(parsed.format).to eq(:dpx)
# If we have an error in the struct offsets these values are likely to become
# the maximum value of a 4-byte uint, which is way higher
expect(parsed.width_px).to be_kind_of(Integer)
expect(parsed.width_px).to be_between(0, 2048)
expect(parsed.height_px).to be_kind_of(Integer)
expect(parsed.height_px).to be_between(0, 4000)
expect(parsed.content_type).to eq('image/x-dpx')
end
end
it 'correctly reads display dimensions corrected for the pixel aspect from the DPX header' do
fi = File.open(fixtures_dir + '/dpx/aspect_237_example.dpx', 'rb')
parsed = subject.call(fi)
expect(parsed.width_px).to eq(1920)
expect(parsed.height_px).to eq(1080)
expect(parsed.display_width_px).to eq(1920)
expect(parsed.display_height_px).to eq(810)
expect(parsed.display_width_px / parsed.display_height_px.to_f).to be_within(0.01).of(2.37)
end
it 'does not explode on invalid inputs' do
invalid = StringIO.new('SDPX' + (' ' * 64))
expect {
subject.call(invalid)
}.to raise_error(FormatParser::IOUtils::InvalidRead)
end
end
Version data entries
35 entries across 35 versions & 1 rubygems