### Question:
Persona extends BaseEntity implements Externalizable { public Map<String, String> toTypeValueMap() { Map<String, String> userData = toAliasValueMap(); Map<String, String> attributes = new HashMap<String, String>(); for (Map.Entry<String, String> sregType : sregTypes.entrySet()) { String type = sregType.getKey(); String alias = sregType.getValue(); String value = userData.get(alias); if (value != null) { attributes.put(type, value); } } return attributes; } Persona();  Persona(final User user); User getUser(); void setUser(final User user); String getCountry(); void setCountry(final String country); String getDob(); void setDob(final String dob); String getEmail(); void setEmail(final String email); String getFullname(); void setFullname(final String fullname); String getGender(); void setGender(final String gender); String getLanguage(); void setLanguage(final String language); String getName(); void setName(final String name); String getNickname(); void setNickname(final String nickname); String getPostcode(); void setPostcode(final String postcode); String getTimezone(); void setTimezone(final String timezone); Set<Attribute> getAttributes(); void setAttributes(final Set<Attribute> attributes); void addAttribute(final Attribute attribute); void clearAttributes(); void setLocale(final Locale locale); Locale getLocale(); Attribute getAttributeByAlias(String alias); Attribute getAttributeByType(String type); Map<String, String> toAliasValueMap(); Map<String, String> toTypeValueMap(); @Override int hashCode(); @Override boolean equals(final Object obj); void readExternal(ObjectInput in); void writeExternal(ObjectOutput out);  }### Answer:
@Test public void testToTypeValueMap() { Persona persona = new Persona(); persona.setNickname("My Nickname"); Map<String, String> actual = persona.toTypeValueMap(); Map<String, String> expected = new HashMap<String, String>(); expected.put("http: persona.getNickname()); expected.put("http: persona.getNickname()); assertEquals(expected, actual); }