require 'spec_helper'

describe SiteInspector::DiskCache do
  subject { SiteInspector::DiskCache.new(tmpdir) }

  before do
    FileUtils.rm_rf(tmpdir)
    Dir.mkdir(tmpdir)
  end

  it 'should write a value to disk' do
    foo = Typhoeus::Request.new('foo')

    path = File.expand_path foo.cache_key, tmpdir
    expect(File.exist?(path)).to eql(false)

    subject.set foo, 'bar'

    expect(File.exist?(path)).to eql(true)
    expect(File.open(path).read).to eql("I\"bar:ET")
  end

  it 'should read a value from disk' do
    foo = Typhoeus::Request.new('foo')

    path = File.expand_path foo.cache_key, tmpdir
    File.write(path, "I\"bar:ET")
    expect(subject.get(foo)).to eql('bar')
  end

  it "should calculate a file's path" do
    foo = Typhoeus::Request.new('foo')

    path = File.expand_path foo.cache_key, tmpdir
    expect(subject.send(:path, foo)).to eql(path)
  end
end