def test_invalid_range(qtbot):
# create the MVP components
services, views, presenter = create_mvp()
main_widget = views['main_widget']
main_widget.show() # show widget to test label visibility
qtbot.addWidget(main_widget)
# aliases for ui elements
func_input = main_widget.func_widget.func_input
x_min_input = main_widget.axis_range_widget.x_min_input
x_max_input = main_widget.axis_range_widget.x_max_input
plot_button = main_widget.func_widget.plot_button
syntax_error_label = main_widget.syntax_error_label
range_error_label = main_widget.range_error_label
plot_widget = main_widget.plot_widget
# user interaction
func_input.setText("x")
x_min_input.setText("10")
x_max_input.setText("0")
qtbot.mouseClick(plot_button, QtCore.Qt.LeftButton)
assert not syntax_error_label.isVisible()
assert range_error_label.isVisible()
assert range_error_label.text().startswith("X Max must be greater")
assert not plot_widget.axes.lines # check if there's no plot
def test_plot(qtbot):
# create the MVP components
services, views, presenter = create_mvp()
main_widget = views['main_widget']
main_widget.show() # show widget to test label visibility
qtbot.addWidget(main_widget)
# aliases for ui elements
func_input = main_widget.func_widget.func_input
plot_button = main_widget.func_widget.plot_button
syntax_error_label = main_widget.syntax_error_label
range_error_label = main_widget.range_error_label
plot_widget = main_widget.plot_widget
# user interaction
func_input.setText("x^2")
qtbot.mouseClick(plot_button, QtCore.Qt.LeftButton)
assert not syntax_error_label.isVisible()
assert not range_error_label.isVisible()
assert plot_widget.axes.lines # check if there's a plot