def test_interpolation_combobox(qtbot):
"""Changing the model attribute should update the view"""
layer = Image(np.random.rand(8, 8))
qtctrl = QtImageControls(layer)
qtbot.addWidget(qtctrl)
combo = qtctrl.interpComboBox
opts = {combo.itemText(i) for i in range(combo.count())}
assert opts == {'bicubic', 'bilinear', 'kaiser', 'nearest', 'spline36'}
# programmatically adding approved interpolation works
layer.interpolation = 'lanczos'
assert combo.findText('lanczos') == 5
def test_interpolation():
"""Test setting image interpolation mode."""
np.random.seed(0)
data = np.random.random((10, 15))
layer = Image(data)
assert layer.interpolation == 'nearest'
layer = Image(data, interpolation='bicubic')
assert layer.interpolation == 'bicubic'
layer.interpolation = 'bilinear'
assert layer.interpolation == 'bilinear'
def test_interpolation():
"""Test setting image interpolation mode."""
shapes = [(40, 20), (20, 10), (10, 5)]
np.random.seed(0)
data = [np.random.random(s) for s in shapes]
layer = Image(data, is_pyramid=True)
assert layer.interpolation == 'nearest'
layer = Image(data, is_pyramid=True, interpolation='bicubic')
assert layer.interpolation == 'bicubic'
layer.interpolation = 'bilinear'
assert layer.interpolation == 'bilinear'
