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DynamicHierarchyDeserializerWithTypeProviderTest.java
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DynamicHierarchyDeserializerWithTypeProviderTest.java
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package com.infobip.jackson.dynamic;
import static org.assertj.core.api.Assertions.catchThrowable;
import static org.assertj.core.api.BDDAssertions.then;
import java.util.Arrays;
import java.util.List;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.infobip.jackson.TestBase;
import com.infobip.jackson.TypeProvider;
import lombok.AllArgsConstructor;
import lombok.Getter;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
class DynamicHierarchyDeserializerWithTypeProviderTest extends TestBase {
@Override
@BeforeEach
public void setUp() {
super.setUp();
DynamicHierarchyModule module = new DynamicHierarchyModule();
module.addDeserializer(FooBar.class, DynamicHierarchyDeserializer.from(FooBarType.class));
this.objectMapper.registerModule(module);
}
@Test
void shouldDeserializeFooAsFooBarFromJson() throws JsonProcessingException {
// given
String json = "{'type':'FOO','foo':'foo'}";
// when
FooBar actual = objectMapper.readValue(json, FooBar.class);
// then
then(actual).isEqualTo(new Foo("foo"));
}
@Test
void shouldDeserializeFooAsFooBarFromSerializedFoo() throws JsonProcessingException {
// given
String json = objectMapper.writeValueAsString(new Foo("foo"));
// when
FooBar actual = objectMapper.readValue(json, FooBar.class);
// then
then(actual).isEqualTo(new Foo("foo"));
}
@Test
void shouldDeserializeBarAsFooBarFromJson() throws JsonProcessingException {
// given
String json = "{'type':'BAR','bar':'bar'}";
// when
FooBar actual = objectMapper.readValue(json, FooBar.class);
// then
then(actual).isEqualTo(new Bar("bar"));
}
@Test
void shouldDeserializeBarAsFooBarFromSerializedBar() throws JsonProcessingException {
// given
String json = objectMapper.writeValueAsString(new Bar("bar"));
// when
FooBar actual = objectMapper.readValue(json, FooBar.class);
// then
then(actual).isEqualTo(new Bar("bar"));
}
@Test
void shouldDeserializeListOfFooBars() throws JsonProcessingException {
// given
String json = objectMapper.writeValueAsString(Arrays.asList(new Foo("foo"), new Bar("bar")));
// when
List<FooBar> actual = objectMapper.readValue(json, new TypeReference<List<FooBar>>() {
});
// then
then(actual).isEqualTo(Arrays.asList(new Foo("foo"), new Bar("bar")));
}
@Test
void shouldHandleUnknownType() {
// given
String json = "{'type':'baz'}";
// when
Throwable actual = catchThrowable(() -> objectMapper.readValue(json, FooBar.class));
// then
then(actual).isInstanceOf(IllegalArgumentException.class)
.hasMessage("No java type mapping specified for json value: baz");
}
@Test
void shouldDeserializeFooAsFooFromJson() throws JsonProcessingException {
// given
String json = "{'type':'FOO','foo':'foo'}";
// when
Foo actual = objectMapper.readValue(json, Foo.class);
// then
then(actual).isEqualTo(new Foo("foo"));
}
interface FooBar {
FooBarType getType();
}
record Foo(String foo) implements FooBar {
public FooBarType getType() {
return FooBarType.FOO;
}
}
record Bar(String bar) implements FooBar {
public FooBarType getType() {
return FooBarType.BAR;
}
}
@Getter
@AllArgsConstructor
enum FooBarType implements TypeProvider<FooBar> {
FOO(Foo.class),
BAR(Bar.class);
private final Class<? extends FooBar> type;
}
}