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RSpec.describe Magick::Image, '#thumbnail' do
it 'works' do
image = described_class.new(20, 20)
result = image.thumbnail(10, 10)
expect(result).to be_instance_of(described_class)
expect { image.thumbnail(2) }.not_to raise_error
expect { image.thumbnail }.to raise_error(ArgumentError)
expect { image.thumbnail(-1.0) }.to raise_error(ArgumentError)
expect { image.thumbnail(0, 25) }.to raise_error(ArgumentError)
expect { image.thumbnail(25, 0) }.to raise_error(ArgumentError)
expect { image.thumbnail(25, 25, 25) }.to raise_error(ArgumentError)
expect { image.thumbnail('x') }.to raise_error(TypeError)
expect { image.thumbnail(10, 'x') }.to raise_error(TypeError)
girl = described_class.read(IMAGES_DIR + '/Flower_Hat.jpg').first
new_image = girl.thumbnail(200, 200)
expect(new_image.columns).to eq(160)
expect(new_image.rows).to eq(200)
new_image = girl.thumbnail(2)
expect(new_image.columns).to eq(400)
expect(new_image.rows).to eq(500)
end
end
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