### Question:
KeyboardOperationEscapeGridCell extends BaseKeyboardOperation { @Override public int getKeyCode() { return KeyCodes.KEY_ESCAPE; } KeyboardOperationEscapeGridCell(final GridLayer gridLayer); @Override int getKeyCode(); @Override boolean isExecutable(final GridWidget gridWidget); @Override boolean perform(final GridWidget gridWidget,
                           final boolean isShiftKeyDown,
                           final boolean isControlKeyDown);  }### Answer:
@Test public void testReactsOnKey() { assertThat(operation.getKeyCode()).isEqualTo(KeyCodes.KEY_ESCAPE); }