sodium.cr/spec/sodium/nonce_spec.cr

40 lines
827 B
Crystal

require "../spec_helper"
require "../../src/sodium/nonce"
zero = Bytes.new(Sodium::Nonce::NONCE_SIZE)
one = Bytes.new(Sodium::Nonce::NONCE_SIZE).dup
one[0] = 1_u8
describe Sodium::Nonce do
it "generates a random nonce" do
nonce = Sodium::Nonce.random
nonce.should_not eq zero
end
it "loads an existing nonce" do
nonce = Sodium::Nonce.new one
nonce.to_slice.should eq one
end
it "zero nonce with increment" do
nonce = Sodium::Nonce.zero
nonce.to_slice.should eq zero
nonce.used?.should be_false
nonce.used!
nonce.used?.should be_true
nonce.increment
nonce.to_slice.should eq one
nonce.used?.should be_false
end
it "dups" do
nonce1 = Sodium::Nonce.zero
nonce2 = nonce1.dup
nonce2.to_slice[0] = 1_u8
nonce1.to_slice[0].should eq 0_u8
end
end