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|
# encoding: binary
# frozen_string_literal: true
RSpec.shared_examples "authenticator" do
context ".new" do
it "accepts a key" do
expect { described_class.new(key) }.to_not raise_error
end
it "requires a key" do
expect { described_class.new }.to raise_error(ArgumentError)
end
it "raises TypeError on a nil key" do
expect { described_class.new(nil) }.to raise_error(TypeError)
end
end
context ".auth" do
it "produces an authenticator" do
expect(described_class.auth(key, message)).to eq tag
end
it "raises TypeError on a nil key" do
expect { described_class.auth(nil, message) }.to raise_error(TypeError)
end
end
context ".verify" do
it "verify an authenticator" do
expect(described_class.verify(key, tag, message)).to eq true
end
it "raises TypeError on a nil key" do
expect { described_class.verify(nil, tag, message) }.to raise_error(TypeError)
end
it "fails to validate an invalid authenticator" do
expect { described_class.verify(key, tag, message + "\0") }.to raise_error(RbNaCl::BadAuthenticatorError)
end
it "fails to validate a short authenticator" do
expect { described_class.verify(key, tag[0, tag.bytesize - 2], message) }.to raise_error(RbNaCl::LengthError)
end
it "fails to validate a long authenticator" do
expect { described_class.verify(key, tag + "\0", message) }.to raise_error(RbNaCl::LengthError)
end
end
context "Instance methods" do
let(:authenticator) { described_class.new(key) }
context "#auth" do
it "produces an authenticator" do
expect(authenticator.auth(message)).to eq tag
end
end
context "#verify" do
it "verifies an authenticator" do
expect(authenticator.verify(tag, message)).to be true
end
it "fails to validate an invalid authenticator" do
expect { authenticator.verify(tag, message + "\0") }.to raise_error(RbNaCl::BadAuthenticatorError)
end
it "fails to validate a short authenticator" do
expect { authenticator.verify(tag[0, tag.bytesize - 2], message) }.to raise_error(RbNaCl::LengthError)
end
it "fails to validate a long authenticator" do
expect { authenticator.verify(tag + "\0", message) }.to raise_error(RbNaCl::LengthError)
end
end
end
end
|
