### Question:
ComboBox implements ComboBoxView.ComboBoxPresenter { @Override public void setReadOnly(final boolean readOnly) { view.setReadOnly(readOnly); }  @Override void init(final ComboBoxView.ModelPresenter modelPresenter,
                     final boolean notifyModelChanges,
                     final ValueListBox<String> listBox,
                     final TextBox textBox,
                     final boolean quoteStringValues,
                     final boolean addCustomValues,
                     final String customPrompt,
                     final String placeholder); @Override String getValue(); @Override void setListBoxValues(final ListBoxValues listBoxValues); @Override void setShowCustomValues(final boolean showCustomValues); @Override void setAddCustomValues(final boolean addCustomValues); @Override void setCurrentTextValue(final String currentTextValue); @Override ListBoxValues getListBoxValues(); @Override void updateListBoxValues(final String listBoxValue); @Override void listBoxValueChanged(final String newValue); @Override void textBoxValueChanged(String newValue); @Override String addCustomValueToListBoxValues(String newValue,
                                                String oldValue); void setTextBoxValue(final String value); void setListBoxValue(final String value); @Override void setReadOnly(final boolean readOnly); void notifyModelChanged();  }### Answer:
@Test public void testSetReadOnlyTrue() { comboBox.setReadOnly(true); verify(view, times(1)).setReadOnly(true); }
@Test public void testSetReadOnlyFalse() { comboBox.setReadOnly(false); verify(view, times(1)).setReadOnly(false); }