### Question:
ConfigurationRequirementDefaultValue extends ConfigurationRequirement<S> { public void setDefaultValues(T[] defaultValues) { this.defaultValues = defaultValues; } ConfigurationRequirementDefaultValue();  ConfigurationRequirementDefaultValue(String identifier);  ConfigurationRequirementDefaultValue(String identifier, int numberOfSettings);  ConfigurationRequirementDefaultValue(String identifier, int minNumberOfSetting,
                                              int maxNumberOfSetting); @XmlTransient final void checkAndSetDefaultValues(T... values); @XmlTransient T getDefaultValue(int index); @XmlTransient void applyDefaultValues(); T[] getDefaultValues(); void setDefaultValues(T[] defaultValues); @Override S[] getSettings(); @Override final void setSettings(S... settings); public T[] defaultValues; }### Answer:
@Test public void testSetDefaultValues() throws AlgorithmConfigurationException { ArrayList<String> listValues = new ArrayList<>(); listValues.add("first"); listValues.add("second"); listValues.add("third"); ConfigurationRequirementListBox specificationListBox = new ConfigurationRequirementListBox("parameter1", listValues, 2); ConfigurationSettingListBox expectedSetting1 = new ConfigurationSettingListBox(); ConfigurationSettingListBox expectedSetting2 = new ConfigurationSettingListBox(); specificationListBox.checkAndSetSettings(expectedSetting1, expectedSetting2); String expectedString1 = "second"; String expectedString2 = "third"; specificationListBox.checkAndSetDefaultValues(expectedString1, expectedString2); ConfigurationSettingListBox[] actualSettings = specificationListBox.getSettings(); assertEquals(expectedString1, actualSettings[0].getValue()); assertEquals(expectedString2, actualSettings[1].getValue()); }