### Question:
ApplicationConfigServiceImpl implements ApplicationConfigService { @Override public void addProperty(final String moduleName, final String key, final String value, String profile, boolean force) { propFilesManager.addPropertyIfNotExists(getApplicationConfigFileLocation(moduleName), getAppliCationConfigFileName(profile), key, value, true, force); }  @Override void addProperty(final String moduleName, final String key, final String value,
      String profile, boolean force); @Override void addProperty(final String moduleName, final String prefix, final String key,
      final String value, String profile, boolean force); @Override void addProperties(final String moduleName, final Map<String, String> properties,
      String profile, boolean force); @Override void addProperties(final String moduleName, final String prefix,
      final Map<String, String> properties, String profile, boolean force); @Override void updateProperty(final String moduleName, final String key, final String value,
      String profile, boolean force); @Override void updateProperty(final String moduleName, final String prefix, final String key,
      final String value, String profile, boolean force); @Override void updateProperties(final String moduleName, final Map<String, String> properties,
      String profile, boolean force); @Override void updateProperties(final String moduleName, final String prefix,
      final Map<String, String> properties, String profile, boolean force); @Override List<String> getApplicationProfiles(String moduleName); @Override Map<String, String> getProperties(String moduleName, String profile); @Override SortedSet<String> getPropertyKeys(final String moduleName, boolean includeValues,
      String profile); @Override SortedSet<String> getPropertyKeys(final String moduleName, String prefix,
      boolean includeValues, String profile); @Override String getProperty(final String moduleName, final String key, String profile); @Override String getProperty(final String moduleName, final String prefix, final String key,
      String profile); @Override void removeProperty(final String moduleName, final String key, String profile); @Override void removeProperty(final String moduleName, final String prefix, String key,
      String profile); @Override void removeProperties(final String moduleName, List<String> keys, String profile); @Override void removePropertiesByPrefix(final String moduleName, String prefix, String profile); @Override String getSpringConfigLocation(String moduleName); @Override String getSpringConfigLocation(String moduleName, String profile); @Override boolean existsSpringConfigFile(String moduleName); @Override boolean existsSpringConfigFile(String moduleName, String profile);  }### Answer:
@Test public void testAddProperty() { }