require 'spec_helper'
require 'stringio'

describe R509::CRL::ReaderWriter do
  before :all do
    @rw = R509::CRL::ReaderWriter.new
  end

  it "abstract base class raises error for write_list_entry" do
    expect { @rw.write_list_entry }.to raise_error(NotImplementedError)
  end

  it "abstract base class raises error for remove_list_entry" do
    expect { @rw.remove_list_entry }.to raise_error(NotImplementedError)
  end

  it "abstract base class raises error for write_number" do
    expect { @rw.write_number }.to raise_error(NotImplementedError)
  end

  it "abstract base class raises error for read_list" do
    expect { @rw.read_list }.to raise_error(NotImplementedError)
  end

  it "abstract base class raises error for read_number" do
    expect { @rw.read_number }.to raise_error(NotImplementedError)
  end
end

describe R509::CRL::FileReaderWriter do
  before :each do
    @rw = R509::CRL::FileReaderWriter.new
  end

  it "handles nil crl_list_file in read_list" do
    @rw.crl_list_file = nil
    expect(@rw.read_list).to be_nil
  end

  it "handles nil crl_list_file in write_list_entry" do
    @rw.crl_list_file = nil
    expect(@rw.write_list_entry(1, 1, nil)).to be_nil
  end

  it "handles nil crl_number_file in read_number" do
    @rw.crl_number_file = nil
    expect(@rw.read_number).to eq(0)
  end

  it "handles nil crl_number_file in write_number" do
    @rw.crl_number_file = nil
    expect(@rw.write_number(0)).to be_nil
  end

  it "reads a crl list" do
    @rw.crl_list_file = TestFixtures::CRL_LIST_FILE
    expect { |b| @rw.read_list(&b) }.to yield_successive_args(
        [12345, 0, 1323983885],
        [12346, nil, 1323983885]
    )

  end

  it "writes a crl list entry" do
    sio = StringIO.new
    @rw.crl_list_file = sio
    @rw.write_list_entry(1, 1, nil)
    expect(sio.string).to eq("1,1,\n")
    @rw.write_list_entry(2, 2, 1)
    expect(sio.string).to eq("1,1,\n2,2,1\n")
  end

  it "removes a crl list entry" do
    sio = StringIO.new
    @rw.crl_list_file = sio
    @rw.write_list_entry(1, 1, nil)
    expect(sio.string).to eq("1,1,\n")
    @rw.write_list_entry(2, 2, 1)
    expect(sio.string).to eq("1,1,\n2,2,1\n")
    @rw.remove_list_entry(2)
    expect(sio.string).to eq("1,1,\n")
  end

  it "reads a number" do
    sio = StringIO.new
    sio.write("500")
    sio.rewind # rewind the pointer to the beginning so the next read catche the 500
    @rw.crl_number_file = sio
    expect(@rw.read_number).to eq(500)
  end

  it "writes a crl number" do
    sio = StringIO.new
    @rw.crl_number_file = sio
    @rw.write_number(30)
    expect(@rw.crl_number_file.string).to eq("30")
  end
end