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import unittest
import mantid
import centre_finder as cf
import ISISCommandInterface as command_iface
from reducer_singleton import ReductionSingleton
import isis_reduction_steps as reduction_steps
class SANSBeamCentrePositionUpdater(unittest.TestCase):
def test_that_find_ALL_produces_correct_increment(self):
# Arrange
fac = cf.BeamCentrePositionUpdaterFactory()
position_updater = fac.createBeamCentrePositionUpdater(cf.FindDirectionEnum.ALL)
x = 1.0
y = 2.0
x_step = 0.1
y_step = 0.2
# Act
x_new, y_new = position_updater.incrementPosition(x, y, x_step, y_step)
x_out, y_out = position_updater.produceFinalPosition(x_new, x, y_new, y)
# Assert
x_expected = 1.1
y_expected = 2.2
self.assertEqual(x_expected, x_new, "The x value should have been incremented.")
self.assertEqual(y_expected, y_new, "The y value should have been incremented.")
self.assertEqual(x_expected, x_out, "The x output should not be the initial value.")
self.assertEqual(y_expected, y_out, "The y output should not be the initial value.")
def test_that_find_LEFTRIGHT_produces_correct_increment(self):
# Arrange
fac = cf.BeamCentrePositionUpdaterFactory()
position_updater = fac.createBeamCentrePositionUpdater(cf.FindDirectionEnum.LEFT_RIGHT)
x = 1.0
y = 2.0
x_step = 0.1
y_step = 0.2
# Act
x_new, y_new = position_updater.incrementPosition(x, y, x_step, y_step)
x_out, y_out = position_updater.produceFinalPosition(x_new, x, y_new, y)
# Assert
x_expected = 1.1
y_expected = 2.0
self.assertEqual(x_expected, x_new, "The x value should have been incremented.")
self.assertEqual(y_expected, y_new, "The y value should have been incremented.")
self.assertEqual(x_expected, x_out, "The x output should not be the initial value.")
self.assertEqual(y_expected, y_out, "The y output should not be the initial value.")
def test_that_find_UPPDOWN_produces_correct_increment(self):
# Arrange
fac = cf.BeamCentrePositionUpdaterFactory()
position_updater = fac.createBeamCentrePositionUpdater(cf.FindDirectionEnum.UP_DOWN)
x = 1.0
y = 2.0
x_step = 0.1
y_step = 0.2
# Act
x_new, y_new = position_updater.incrementPosition(x, y, x_step, y_step)
x_out, y_out = position_updater.produceFinalPosition(x_new, x, y_new, y)
# Assert
x_expected = 1.0
y_expected = 2.2
self.assertEqual(x_expected, x_new, "The x value should have been incremented.")
self.assertEqual(y_expected, y_new, "The y value should have been incremented.")
self.assertEqual(x_expected, x_out, "The x output should not be the initial value.")
self.assertEqual(y_expected, y_out, "The y output should not be the initial value.")
if __name__ == "__main__":
unittest.main()