FlexMock v0.9.0.beta.0发布 针对Rails单元测试的Mock工具

FlexMock是一个比较流行的针对">Rails单元测试的Mock工具，

安装方法：$ gem install flexmock

代码示例：

require 'test/unit'
require 'flexmock/test_unit'

class TemperatureSampler
  def initialize(sensor)
    @sensor = sensor
  end

def average_temp
    total = (0...3).collect {
      @sensor.read_temperature
    }.inject { |i, s| i + s }
    total / 3.0
  end
end

class TestTemperatureSampler < Test::Unit::TestCase
  def test_sensor_can_average_three_temperature_readings
    sensor = flexmock("temp")
    sensor.should_receive(:read_temperature).times(3).
      and_return(10, 12, 14)

sampler = TemperatureSampler.new(sensor)
    assert_equal 12, sampler.average_temp
  end
end

Test::Unit Integration示例代码

require 'flexmock/test_unit'

class TestDog < Test::Unit::TestCase
  def test_dog_wags
    tail_mock = flexmock(:wag => :happy)
    assert_equal :happy, tail_mock.wag
  end
end

RSpec Integration示例代码

Spec::Runner.configure do |config|
  config.mock_with :flexmock
end

describe "Using FlexMock with RSpec" do
  it "should be able to create a mock" do
    m = flexmock(:foo => :bar)
    m.foo.should === :bar
  end
end