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process.env.TZ = "America/Los_Angeles"
jsdom = require('jsdom')
global.assert = require('chai').assert
url = require('url')
html = "<html><head></head><body></body></html>"
exec = require('child_process').exec
exec 'pwd', (err, out) -> console.log out
before (done) ->
jsdom.env
html: html
scripts: ["http://d3js.org/d3.v3.min.js", "./dist/js/epoch.js"]
done: (errors, window) ->
global.Epoch = window.Epoch
# Override get context to use a test context by default
global.Epoch.Util.getContext = -> new window.Epoch.TestContext()
global.d3 = window.d3
global.doc = window.document
# Set this to "retina" so we can test canvas based charts
window.devicePixelRatio = 2
done()
global.addStyleSheet = (css) ->
head = doc.head
style = doc.createElement('style')
style.type = 'text/css'
style.appendChild(doc.createTextNode(css))
head.appendChild(style)
style
global.layerWithRange = (min, max, range) ->
layer = { values: [{time: 0, y: min}, {time: 1, y: max}] }
layer.range = range if range?
layer
#
# Helper assertion methods for data format testing
#
assert.data = (expected, result, checkAttributes) ->
checkAttributes ?= ['x', 'y']
assert.equal expected.length, result.length
for i, layer of expected
resultLayer = result[i]
msg = "Result layer #{i} does not have expected number of values."
assert.equal layer.values.length, resultLayer.values.length, msg
for j in [0...layer.values.length]
for k in checkAttributes
msg = "Layer #{i} data point #{j} does not have the expected value for key #{k}"
assert.equal layer.values[j][k], resultLayer.values[j][k], msg
assert.timeData = (expected, result) ->
assert.data(expected, result, ['time', 'y'])
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