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describe 'd3.selection', ->
[width, height] = [345, 543, null]
[element, id] = [null, 'd3-element']
before (done) ->
element = doc.createElement('DIV')
element.id = id
doc.body.appendChild(element)
d3.select('#' + id).style
'width': width + "px"
'height': height + "px"
done()
describe 'width', ->
it 'should return the width of an element', ->
assert.equal d3.select('#' + id).width(), width
it 'should set the width of an element given a number', ->
widthNumber = 50
d3.select('#'+id).width(widthNumber)
assert.equal d3.select('#'+id).width(), widthNumber
it 'should set the width of an element given a css pixel length', ->
widthString = '500px'
d3.select('#'+id).width(widthString)
assert.equal d3.select('#'+id).width(), +widthString.replace('px', '')
describe 'height', ->
it 'should return the height of an element', ->
assert.equal d3.select('#' + id).height(), height
it 'should set the height of an element given a number', ->
heightNumber = 75
d3.select('#'+id).height(heightNumber)
assert.equal d3.select('#'+id).height(), heightNumber
it 'should set the height of an element given a css pixel length', ->
heightString = '343px'
d3.select('#'+id).height(heightString)
assert.equal d3.select('#'+id).height(), +heightString.replace('px', '')
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