require 'spec_helper'

describe "#expireat(key, timestamp)" do
  before do
    @key = 'mock-redis-test:expireat'
    @redises.set(@key, 'spork')
  end

  it "returns true for a key that exists" do
    @redises.expireat(@key, Time.now.to_i + 1).should be_true
  end

  it "returns false for a key that does not exist" do
    @redises.expireat('mock-redis-test:nonesuch', Time.now.to_i + 1).should be_false
  end

  it "removes a key immediately when timestamp is now" do
    @redises.expireat(@key, Time.now.to_i)
    @redises.get(@key).should be_nil
  end

  it "raises an error if you don't give it a Unix timestamp" do
    lambda do
      @redises.expireat(@key, Time.now)   # oops, forgot .to_i
    end.should raise_error(RuntimeError)
  end

  context "[mock only]" do
    # These are mock-only since we can't actually manipulate time in
    # the real Redis.

    before(:all) do
      @mock = @redises.mock
    end

    before do
      @now = Time.now
      Time.stub(:now).and_return(@now)
    end

    it "removes keys after enough time has passed" do
      @mock.expireat(@key, @now.to_i + 5)
      Time.stub(:now).and_return(@now + 5)
      @mock.get(@key).should be_nil
    end

  end
end