old_contents: import numpy as np
  import pyfds as fds
  
  
  def test_dimension():
      dim = fds.Dimension(3, 0.1)
      assert np.allclose(dim.vector, np.asarray([0, 0.1, 0.2]))
      assert dim.get_index(0.1) == 1
  
  
  def test_field_component_boundary_1():
      fc = fds.FieldComponent(100)
      fc.values = np.random.rand(100)
      fc.boundaries = [fds.Boundary(fds.LineRegion([5, 6, 7], [0, 0.2], 'test boundary'))]
      fc.boundaries[0].value = 23
      fc.apply_bounds()
      assert np.allclose(fc.values[[5, 6, 7]], [23, 23, 23])
  
  
  def test_field_component_boundary_2():
      fc = fds.FieldComponent(100)
      fc.values = np.ones(100)
      fc.boundaries = [fds.Boundary(fds.LineRegion([5, 6, 7], [0, 0.2], 'test boundary'))]
      fc.boundaries[0].value = [23, 42, 23]
      fc.boundaries[0].additive = True
      fc.apply_bounds()
      assert np.allclose(fc.values[[5, 6, 7]], [24, 43, 24])
  
  
  def test_field_component_output():
      fc = fds.FieldComponent(100)
      fc.outputs = [fds.Output(fds.LineRegion([0, 1, 2], [0, 0.2], 'test output'))]
      fc.write_outputs()
      fc.write_outputs()
      assert np.allclose(fc.outputs[0].signals, [[0, 0], [0, 0], [0, 0]])
  
new_contents: import numpy as np
  import pyfds as fds
  
  
  def test_dimension():
      dim = fds.Dimension(3, 0.1)
      assert np.allclose(dim.vector, np.asarray([0, 0.1, 0.2]))
      assert dim.get_index(0.1) == 1
  
  
  def test_field_component_boundary_1():
      fc = fds.FieldComponent(100)
      fc.values = np.random.rand(100)
      fc.boundaries = [fds.Boundary(fds.LineRegion([5, 6, 7], [0, 0.2], 'test boundary'))]
      fc.boundaries[0].value = 23
      fc.apply_bounds()
      assert np.allclose(fc.values[[5, 6, 7]], [23, 23, 23])
  
  
  def test_field_component_boundary_2():
      fc = fds.FieldComponent(100)
      fc.values = np.ones(100)
      fc.boundaries = [fds.Boundary(fds.LineRegion([5, 6, 7], [0, 0.2], 'test boundary'))]
      fc.boundaries[0].value = [23, 42, 23]
      fc.boundaries[0].additive = True
      fc.apply_bounds()
      assert np.allclose(fc.values[[5, 6, 7]], [24, 43, 24])
  
  
  def test_field_component_output():
      fc = fds.FieldComponent(100)
      fc.outputs = [fds.Output(fds.LineRegion([0, 1, 2], [0, 0.2], 'test output'))]
      fc.write_outputs()
      fc.write_outputs()
      assert np.allclose(fc.outputs[0].signals, [[0, 0], [0, 0], [0, 0]])
      assert np.allclose(fc.outputs[0].mean_signal, np.zeros(2))
  
subject: Expand output test case for FieldComponent.