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Tidied up tests

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Andrew Morgan 2017-02-11 18:23:25 +00:00 committed by Andrew Morgan
parent 7c07b93def
commit b5985a586c
1 changed files with 4 additions and 17 deletions
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21
jackson/src/test/java/com/baeldung/jackson/miscellaneous/mixin/OptionalTypeTest.java
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@ -11,64 +11,51 @@ import org.junit.Test;
public class OptionalTypeTest { public class OptionalTypeTest {
ObjectMapper mapper = new ObjectMapper() ObjectMapper mapper = new ObjectMapper().registerModule(new Jdk8Module());
.registerModule(new Jdk8Module());
@Test @Test
public void givenOptional_whenSerializing_thenValueInJson() throws JsonProcessingException { public void givenPresentOptional_whenSerializing_thenValueInJson() throws JsonProcessingException {
// arrange
String subTitle = "The Parish Boy's Progress"; String subTitle = "The Parish Boy's Progress";
Book book = new Book(); Book book = new Book();
book.setTitle("Oliver Twist"); book.setTitle("Oliver Twist");
book.setSubTitle(Optional.of(subTitle)); book.setSubTitle(Optional.of(subTitle));
// act
String result = mapper.writeValueAsString(book); String result = mapper.writeValueAsString(book);
// assert
assertThat(from(result).getString("subTitle")).isEqualTo(subTitle); assertThat(from(result).getString("subTitle")).isEqualTo(subTitle);
} }
@Test @Test
public void givenEmptyOptional_whenSerializing_thenNullValue() throws JsonProcessingException { public void givenEmptyOptional_whenSerializing_thenNullValue() throws JsonProcessingException {
// arrange
Book book = new Book(); Book book = new Book();
book.setTitle("Oliver Twist"); book.setTitle("Oliver Twist");
book.setSubTitle(Optional.empty()); book.setSubTitle(Optional.empty());
// act
String result = mapper.writeValueAsString(book); String result = mapper.writeValueAsString(book);
// assert
assertThat(from(result).getString("subTitle")).isNull(); assertThat(from(result).getString("subTitle")).isNull();
} }
@Test @Test
public void givenField_whenDeserializing_thenOptionalWithValue() throws IOException { public void givenField_whenDeserializingIntoOptional_thenIsPresentWithValue() throws IOException {
// arrange
String subTitle = "The Parish Boy's Progress"; String subTitle = "The Parish Boy's Progress";
String book = "{ \"title\": \"Oliver Twist\", \"subTitle\": \"" + subTitle + "\" }"; String book = "{ \"title\": \"Oliver Twist\", \"subTitle\": \"" + subTitle + "\" }";
// act
Book result = mapper.readValue(book, Book.class); Book result = mapper.readValue(book, Book.class);
// assert
assertThat(result.getSubTitle()).isEqualTo(Optional.of(subTitle)); assertThat(result.getSubTitle()).isEqualTo(Optional.of(subTitle));
} }
@Test @Test
public void givenEmptyField_whenDeserializing_thenEmptyOptional() throws IOException { public void givenNullField_whenDeserializingIntoOptional_thenIsEmpty() throws IOException {
// arrange
String book = "{ \"title\": \"Oliver Twist\", \"subTitle\": null }"; String book = "{ \"title\": \"Oliver Twist\", \"subTitle\": null }";
// act
Book result = mapper.readValue(book, Book.class); Book result = mapper.readValue(book, Book.class);
// assert
assertThat(result.getSubTitle()).isEmpty(); assertThat(result.getSubTitle()).isEmpty();
} }
} }