Luke Imhoff
38 lines
1.2 KiB
Ruby
38 lines
1.2 KiB
Ruby
# -*- coding: binary -*-
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shared_examples_for 'an xor encoder' do |keysize|
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it "should encode one block" do
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# Yup it returns one of its arguments in an array... Because spoon.
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encoded, key = described_class.encode("A"*keysize, "A"*keysize)
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expect(encoded).to eql("\x00"*keysize)
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encoded, key = described_class.encode("\x0f"*keysize, "\xf0"*keysize)
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expect(encoded).to eql("\xff"*keysize)
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encoded, key = described_class.encode("\xf7"*keysize, "\x7f"*keysize)
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expect(encoded).to eql("\x88"*keysize)
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end
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it "should encode multiple blocks" do
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2.upto 50 do |count|
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encoded, key = described_class.encode("\xf7"*keysize*count, "\x7f"*keysize)
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expect(encoded).to eql("\x88"*keysize*count)
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end
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end
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if keysize > 1
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it "should deal with input lengths that aren't a multiple of keysize" do
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expect {
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encoded, key = described_class.encode("A"*(keysize+1), "A"*keysize)
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expect(encoded).to eql("\x00"*(keysize+1))
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}.not_to raise_error
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expect {
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encoded, key = described_class.encode("A"*(keysize-1), "A"*keysize)
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expect(encoded).to eql("\x00"*(keysize-1))
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}.not_to raise_error
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end
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end
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end
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