compass/test/units/sprites/row_fitter_test.rb
2011-08-02 23:34:59 -04:00

66 lines
1.6 KiB
Ruby

require 'test_helper'
require 'compass/sass_extensions/sprites/row_fitter'
class RowFitterTest < Test::Unit::TestCase
include SpriteHelper
def setup
file = StringIO.new("images_path = #{@images_src_path.inspect}\n")
Compass.add_configuration(file, "sprite_config")
end
def row_fitter(images = nil)
@row_fitter ||= Compass::SassExtensions::Sprites::RowFitter.new(images)
end
def teardown
@row_fitter = nil
end
def create_images(dims)
dims.collect { |width, height|
image = Compass::SassExtensions::Sprites::Image.new('blah', 'blah', {})
image.stubs(:width => width, :height => height)
image
}
end
def basic_dims
[
[ 100, 10 ],
[ 80, 10 ],
[ 50, 10 ],
[ 35, 10 ],
[ 20, 10 ]
]
end
it 'should use the fast placement algorithm' do
images = create_images(basic_dims)
row_fitter(images)
assert_equal 100, row_fitter.width
row_fitter.fit!(:fast)
assert_equal 4, row_fitter.rows.length
assert_equal [ images[0] ], row_fitter[0].images
assert_equal [ images[1] ], row_fitter[1].images
assert_equal [ images[2], images[3] ], row_fitter[2].images
assert_equal [ images[4] ], row_fitter[3].images
end
it 'should use the scan placement algorithm' do
images = create_images(basic_dims)
row_fitter(images)
row_fitter.fit!(:scan)
assert_equal 3, row_fitter.rows.length
assert_equal [ images[0] ], row_fitter[0].images
assert_equal [ images[1], images[4] ], row_fitter[1].images
assert_equal [ images[2], images[3] ], row_fitter[2].images
end
end