```ruby
require File.dirname(__FILE__) + '/../test_helper'

class ScssTest < ActiveSupport::TestCase

  should 'calculate the coordinating edgevalue for a color' do
    result = render_css("#test { color: edgevalue(#fec) }")
    assert_equal "#test{color:black}", result
    result = render_css("#test { color: edgevalue(#333) }")
    assert_equal "#test{color:white}", result
  end

  should 'calculate the coordinating edgevalue for a color with an offset' do
    result = render_css("#test { color: edgevalue(#fec, 50) }")
    assert_equal "#test{color:#323232}", result
    result = render_css("#test { color: edgevalue(#333, 50) }")
    assert_equal "#test{color:#cdcdcd}", result
  end

  def render_css(scss)
    Sass::Engine.new(
      scss,
      :syntax => :scss,
      :cache  => false,
      :style  => :compressed
    ).render.strip
  end
end
```

Fix broken test by change in Sass color values.
user
```ruby
require File.dirname(__FILE__) + '/../test_helper'

class ScssTest < ActiveSupport::TestCase

  should 'calculate the coordinating edgevalue for a color' do
    result = render_css("#test { color: edgevalue(#fec) }")
    assert_equal "#test{color:#000}", result
    result = render_css("#test { color: edgevalue(#333) }")
    assert_equal "#test{color:#fff}", result
  end

  should 'calculate the coordinating edgevalue for a color with an offset' do
    result = render_css("#test { color: edgevalue(#fec, 50) }")
    assert_equal "#test{color:#323232}", result
    result = render_css("#test { color: edgevalue(#333, 50) }")
    assert_equal "#test{color:#cdcdcd}", result
  end

  def render_css(scss)
    Sass::Engine.new(
      scss,
      :syntax => :scss,
      :cache  => false,
      :style  => :compressed
    ).render.strip
  end
end
```
assistant