102 lines
2.6 KiB
Crystal
102 lines
2.6 KiB
Crystal
require "../spec_helper"
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require "../../src/sodium/secure_buffer"
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class FakeError < Exception
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end
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describe Sodium::SecureBuffer do
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it "allocates empty" do
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buf = Sodium::SecureBuffer.new 5
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buf.to_slice.each do |b|
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b.should eq 0xdb_u8
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end
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buf.noaccess
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buf.readonly
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buf.readwrite
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end
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it "allocates random" do
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buf = Sodium::SecureBuffer.random 5
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buf.to_slice.bytesize.should eq 5
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buf.wipe
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end
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it "copies and erases" do
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bytes = Bytes.new(5) { 1_u8 }
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buf = Sodium::SecureBuffer.new bytes, erase: true
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buf.to_slice.bytesize.should eq 5
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buf.to_slice.each do |b|
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b.should eq 1_u8
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end
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bytes.to_slice.each do |b|
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b.should eq 0_u8
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end
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end
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it "dups without crashing" do
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buf = Sodium::SecureBuffer.new 5
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buf.readwrite
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buf2 = buf.dup
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buf2.@state.should eq Sodium::SecureBuffer::State::Readwrite
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buf[0] = 1_u8
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buf.to_slice.hexstring.should_not eq buf2.to_slice.hexstring
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buf2[0] = 1_u8
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buf.to_slice.hexstring.should eq buf2.to_slice.hexstring
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end
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it "transitions correctly" do
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buf = Sodium::SecureBuffer.new 5
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buf.noaccess
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buf.@state.should eq Sodium::SecureBuffer::State::Noaccess
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buf.readonly { buf.@state.should eq Sodium::SecureBuffer::State::Readonly }
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buf.@state.should eq Sodium::SecureBuffer::State::Noaccess
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buf.readonly
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buf.@state.should eq Sodium::SecureBuffer::State::Readonly
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buf.readwrite { buf.@state.should eq Sodium::SecureBuffer::State::Readwrite }
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buf.@state.should eq Sodium::SecureBuffer::State::Readonly
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buf.readwrite
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buf.@state.should eq Sodium::SecureBuffer::State::Readwrite
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buf.readonly { buf.@state.should eq Sodium::SecureBuffer::State::Readwrite }
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buf.@state.should eq Sodium::SecureBuffer::State::Readwrite
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buf.wipe
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buf.@state.should eq Sodium::SecureBuffer::State::Wiped
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end
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it "temporarily transitions correctly with exceptions" do
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buf = Sodium::SecureBuffer.new(5).noaccess
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begin
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buf.readonly { raise FakeError.new }
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rescue FakeError
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end
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buf.@state.should eq Sodium::SecureBuffer::State::Noaccess
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end
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it "can wipe more than once" do
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buf = Sodium::SecureBuffer.new 5
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3.times { buf.wipe }
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end
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it "can't transition from wiped" do
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buf = Sodium::SecureBuffer.new 5
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buf.wipe
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expect_raises Sodium::SecureBuffer::Error::KeyWiped do
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buf.readwrite
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end
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expect_raises Sodium::SecureBuffer::Error::KeyWiped do
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buf.readonly
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end
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expect_raises Sodium::SecureBuffer::Error::KeyWiped do
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buf.noaccess
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end
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end
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end
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