def testAssigningSvgCoordinate(self):
device = Device("abc/testDevice", None, None)
self.assertEqual(device.svgCoordinateX, None)
linac = Linac()
linac.addSection("abc")
linac.addDevice(device)
device.assignSvgCoordinatesForLinacDevice()
testSection = linac.getSection("abc")
sectionStartCoordinate = testSection.startCoordinate
distanceBetweenDevices = testSection.getDistanceBetweenDevices()
self.assertEqual(device.svgCoordinateX,
sectionStartCoordinate + distanceBetweenDevices)
