### Question:
GazeMediaPlayer extends Parent implements GameLifeCycle { public static StackPaneButton createSimpleStackPaneButton(double width, double height) { StackPaneButton bwpi = new StackPaneButton(); bwpi.getButton().setPrefWidth(width); bwpi.getButton().setPrefHeight(height); bwpi.getButton().setMinWidth(width); bwpi.getButton().setMinHeight(height); return bwpi; } GazeMediaPlayer(final IGameContext gameContext, Stats stats); static StackPaneButton createGraphicStackPaneButton(double width, double height, @NonNull String imageURL); static StackPaneButton createSimpleStackPaneButton(double width, double height); static StackPaneButton createTextStackPaneButton(String text, double width, double height); @Override void launch(); @Override void dispose(); static Button createMediaButton(String text, double width, double height);  }### Answer:
@Test void shouldCreateButtonOfSimpleStackPaneButton() { StackPaneButton stackPaneButton = GazeMediaPlayer.createSimpleStackPaneButton(500, 500); Assertions.assertNotNull(stackPaneButton.getButton()); }