SpringCloud/spring-cloud-function
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Migrate to JUnit 5

Browse Source 
spring-cloud-function-context

spring-cloud-function-context: fix

spring-cloud-function-web

spring-cloud-function-adapters

spring-cloud-function-samples

spring-cloud-function-deployer; spring-cloud-function-kotlin

Resolves #535
This commit is contained in:
anshlykov
2020-06-10 12:08:12 +03:00
committed by Oleg Zhurakousky
parent 6ea91a77a8
commit dfa02750c1
83 changed files with 290 additions and 430 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/FunctionRegistrationTests.java
View File

@@ -18,7 +18,7 @@ package org.springframework.cloud.function.context;
import java.util.function.Function;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import static org.assertj.core.api.Assertions.assertThat;

2
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/FunctionTypeTests.java
View File

@@ -24,7 +24,7 @@ import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import reactor.util.function.Tuple2;
import reactor.util.function.Tuple3;

2
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/HybridFunctionalRegistrationTests.java
View File

@@ -18,7 +18,7 @@ package org.springframework.cloud.function.context;
import java.util.function.Function;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import org.springframework.boot.SpringBootConfiguration;

20
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/SpringFunctionAdapterInitializerTests.java
View File

@@ -21,9 +21,10 @@ import java.util.function.Function;
import java.util.function.Supplier;
import java.util.stream.Collectors;
import org.junit.After;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import org.springframework.cloud.function.context.config.ContextFunctionCatalogAutoConfiguration;
@@ -33,8 +34,6 @@ import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.context.support.GenericApplicationContext;
import static org.assertj.core.api.Assertions.assertThat;
/**
@@ -46,7 +45,7 @@ public class SpringFunctionAdapterInitializerTests {
private AbstractSpringFunctionAdapterInitializer<Object> initializer;
@After
@AfterEach
public void after() {
System.clearProperty("function.name");
if (this.initializer != null) {
@@ -54,11 +53,12 @@ public class SpringFunctionAdapterInitializerTests {
}
}
@Test(expected = IllegalArgumentException.class)
@Test
public void nullSource() {
this.initializer = new AbstractSpringFunctionAdapterInitializer<Object>(null) {
Assertions.assertThrows(IllegalArgumentException.class, () ->
this.initializer = new AbstractSpringFunctionAdapterInitializer<Object>(null) {
};
});
}
@Test
@@ -106,7 +106,7 @@ public class SpringFunctionAdapterInitializerTests {
}
@Test
@Ignore // related to boot 2.1 no bean override change
@Disabled // related to boot 2.1 no bean override change
public void functionRegistrar() {
this.initializer = new AbstractSpringFunctionAdapterInitializer<Object>(FunctionRegistrar.class) {

6
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/catalog/BeanFactoryAwareFunctionRegistryMultiInOutTests.java
View File

@@ -24,8 +24,8 @@ import java.util.function.BiFunction;
import java.util.function.Function;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.util.function.Tuple2;
@@ -100,7 +100,7 @@ public class BeanFactoryAwareFunctionRegistryMultiInOutTests {
@SuppressWarnings("unused")
@Test
@Ignore
@Disabled
public void testMultiInputBiFunction() {
FunctionCatalog catalog = this.configureCatalog();
BiFunction<Flux<String>, Flux<Integer>, Flux<String>> multiInputFunction =

17
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/catalog/BeanFactoryAwareFunctionRegistryTests.java
View File

@@ -28,9 +28,10 @@ import java.util.function.Function;
import java.util.function.Supplier;
import java.util.stream.Collectors;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.util.function.Tuple2;
@@ -78,7 +79,7 @@ public class BeanFactoryAwareFunctionRegistryTests {
return catalog;
}
@Before
@BeforeEach
public void before() {
System.clearProperty("spring.cloud.function.definition");
}
@@ -156,7 +157,7 @@ public class BeanFactoryAwareFunctionRegistryTests {
* - the input wrapper must match the output wrapper (e.g., <Flux, Flux> or <Mono, Mono>)
*/
@Test
@Ignore
@Disabled
public void testImperativeVoidInputFunction() {
FunctionCatalog catalog = this.configureCatalog();
@@ -245,11 +246,13 @@ public class BeanFactoryAwareFunctionRegistryTests {
* Further more, such flux will need to be triggered (e.g., subscribe(..) )
*/
@SuppressWarnings("unused")
@Test(expected = ClassCastException.class)
@Test
public void testReactiveFunctionWithImperativeInputAndOutputFail() {
FunctionCatalog catalog = this.configureCatalog();
Function<String, String> reverse = catalog.lookup("reverseFlux");
String result = reverse.apply("reverseFlux");
Assertions.assertThrows(ClassCastException.class, () -> {
String result = reverse.apply("reverseFlux");
});
}
@Test

2
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/catalog/BeanFactoryAwarePojoFunctionRegistryTests.java
View File

@@ -18,7 +18,7 @@ package org.springframework.cloud.function.context.catalog;
import java.util.function.Function;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;

2
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/catalog/FunctionTypeUtilsTests.java
View File

@@ -25,7 +25,7 @@ import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.util.function.Tuple2;

2
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/catalog/MessageConsumerTests.java
View File

@@ -20,7 +20,7 @@ import java.util.ArrayList;
import java.util.List;
import java.util.function.Consumer;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import org.springframework.messaging.support.MessageBuilder;

2
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/catalog/MessageFunctionTests.java
View File

@@ -21,7 +21,7 @@ import java.util.List;
import java.util.function.Consumer;
import java.util.function.Function;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;
import reactor.test.StepVerifier;

2
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/catalog/MessageSupplierTests.java
View File

@@ -20,7 +20,7 @@ import java.util.Arrays;
import java.util.Collection;
import java.util.function.Supplier;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import reactor.test.StepVerifier;

10
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/catalog/SimpleFunctionRegistryTests.java
View File

@@ -22,9 +22,9 @@ import java.util.function.Function;
import java.util.function.Supplier;
import com.google.gson.Gson;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import org.springframework.cloud.function.context.FunctionRegistration;
@@ -56,7 +56,7 @@ public class SimpleFunctionRegistryTests {
private ConversionService conversionService;
@Before
@BeforeEach
public void before() {
List<MessageConverter> messageConverters = new ArrayList<>();
JsonMapper jsonMapper = new GsonMapper(new Gson());
@@ -121,7 +121,7 @@ public class SimpleFunctionRegistryTests {
}
@Test
@Ignore
@Disabled
public void testFunctionCompletelyImplicitComposition() {
FunctionRegistration<Words> wordsRegistration = new FunctionRegistration<>(
new Words(), "words").type(FunctionType.of(Words.class));

22
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/config/ContextFunctionCatalogAutoConfigurationTests.java
View File

@@ -27,9 +27,9 @@ import java.util.function.Function;
import java.util.function.Supplier;
import java.util.stream.Collectors;
import org.junit.After;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
@@ -88,7 +88,7 @@ public class ContextFunctionCatalogAutoConfigurationTests {
ContextFunctionCatalogAutoConfigurationTests.value = value.toString();
}
@After
@AfterEach
public void close() {
if (this.context != null) {
this.context.close();
@@ -119,7 +119,7 @@ public class ContextFunctionCatalogAutoConfigurationTests {
}
@Test
@Ignore
@Disabled
// do we really need this test and behavior? What does this even mean?
public void ambiguousFunction() {
create(AmbiguousConfiguration.class);
@@ -137,7 +137,7 @@ public class ContextFunctionCatalogAutoConfigurationTests {
}
@Test
@Ignore
@Disabled
public void configurationFunction() {
create(FunctionConfiguration.class);
assertThat(this.context.getBean("foos")).isInstanceOf(Function.class);
@@ -293,7 +293,7 @@ public class ContextFunctionCatalogAutoConfigurationTests {
}
@SuppressWarnings({ "rawtypes", "unchecked" })
@Test//(expected = IllegalArgumentException.class)
@Test
public void monoToMonoNonVoidFunction() {
create(MonoToMonoNonVoidConfiguration.class);
assertThat(this.context.getBean("function")).isInstanceOf(Function.class);
@@ -369,7 +369,7 @@ public class ContextFunctionCatalogAutoConfigurationTests {
}
@Test
@Ignore
@Disabled
public void singletonMessageFunction() {
create(SingletonMessageConfiguration.class);
assertThat(this.context.getBean("function")).isInstanceOf(Function.class);
@@ -474,7 +474,7 @@ public class ContextFunctionCatalogAutoConfigurationTests {
}
@Test
@Ignore
@Disabled
public void simpleSupplier() {
create(SimpleConfiguration.class);
assertThat(this.context.getBean("supplier")).isInstanceOf(Supplier.class);
@@ -493,7 +493,7 @@ public class ContextFunctionCatalogAutoConfigurationTests {
}
@Test
@Ignore
@Disabled
public void qualifiedBean() {
create(QualifiedConfiguration.class);
assertThat(this.context.getBean("function")).isInstanceOf(Function.class);
@@ -517,7 +517,7 @@ public class ContextFunctionCatalogAutoConfigurationTests {
}
@Test
@Ignore
@Disabled
public void registrationBean() {
create(RegistrationConfiguration.class);
assertThat(this.context.getBean("function")).isInstanceOf(Function.class);

23
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/config/ContextFunctionCatalogInitializerTests.java
View File

@@ -26,9 +26,10 @@ import java.util.function.Function;
import java.util.function.Supplier;
import com.google.gson.Gson;
import org.junit.After;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
@@ -61,7 +62,7 @@ public class ContextFunctionCatalogInitializerTests {
private FunctionInspector inspector;
@After
@AfterEach
public void close() {
if (this.context != null) {
this.context.close();
@@ -102,7 +103,7 @@ public class ContextFunctionCatalogInitializerTests {
}
@Test
@Ignore
@Disabled
public void compose() {
create(SimpleConfiguration.class);
assertThat(this.context.getBean("function"))
@@ -115,14 +116,16 @@ public class ContextFunctionCatalogInitializerTests {
// TODO: support for function composition
}
@Test(expected = BeanCreationException.class)
@Test
public void missingType() {
create(MissingTypeConfiguration.class);
assertThat(this.context.getBean("function"))
Assertions.assertThrows(BeanCreationException.class, () -> {
create(MissingTypeConfiguration.class);
assertThat(this.context.getBean("function"))
.isInstanceOf(FunctionRegistration.class);
assertThat((Function<?, ?>) this.catalog.lookup(Function.class, "function"))
assertThat((Function<?, ?>) this.catalog.lookup(Function.class, "function"))
.isInstanceOf(Function.class);
// TODO: support for type inference from functional bean registrations
// TODO: support for type inference from functional bean registrations
});
}
@Test

2
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/config/NegotiatingMessageConverterWrapperTests.java
View File

@@ -22,7 +22,7 @@ import java.util.HashMap;
import java.util.Map;
import java.util.stream.Collectors;
import org.junit.Test;
import org.junit.jupiter.api.Test;
import reactor.util.function.Tuple2;
import reactor.util.function.Tuples;

25
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/config/RoutingFunctionTests.java
View File

@@ -18,8 +18,9 @@ package org.springframework.cloud.function.context.config;
import java.util.function.Function;
import org.junit.After;
import org.junit.Test;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
@@ -33,7 +34,6 @@ import org.springframework.messaging.Message;
import org.springframework.messaging.support.MessageBuilder;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.Assert.fail;
/**
*
@@ -44,7 +44,7 @@ public class RoutingFunctionTests {
private ConfigurableApplicationContext context;
@After
@AfterEach
public void before() {
System.clearProperty("spring.cloud.function.definition");
System.clearProperty("spring.cloud.function.routing-expression");
@@ -55,8 +55,7 @@ public class RoutingFunctionTests {
context = new SpringApplicationBuilder(RoutingFunctionConfiguration.class).run(
"--logging.level.org.springframework.cloud.function=DEBUG",
"--spring.cloud.function.routing.enabled=true");
FunctionCatalog catalog = context.getBean(FunctionCatalog.class);
return catalog;
return context.getBean(FunctionCatalog.class);
}
@SuppressWarnings({ "unchecked", "rawtypes" })
@@ -82,7 +81,7 @@ public class RoutingFunctionTests {
}
@SuppressWarnings({ "unchecked", "rawtypes" })
@Test(expected = Exception.class)
@Test
public void testRoutingReactiveInputWithReactiveFunctionAndDefinitionMessageHeader() {
FunctionCatalog functionCatalog = this.configureCatalog();
Function function = functionCatalog.lookup(RoutingFunction.FUNCTION_NAME);
@@ -90,11 +89,11 @@ public class RoutingFunctionTests {
Message<String> message = MessageBuilder.withPayload("hello")
.setHeader(FunctionProperties.PREFIX + ".definition", "echoFlux").build();
Flux resultFlux = (Flux) function.apply(Flux.just(message));
resultFlux.subscribe();
Assertions.assertThrows(Exception.class, resultFlux::subscribe);
}
@SuppressWarnings({ "unchecked", "rawtypes" })
@Test(expected = Exception.class)
@Test
public void testRoutingReactiveInputWithReactiveFunctionAndExpressionMessageHeader() {
FunctionCatalog functionCatalog = this.configureCatalog();
Function function = functionCatalog.lookup(RoutingFunction.FUNCTION_NAME);
@@ -102,7 +101,7 @@ public class RoutingFunctionTests {
Message<String> message = MessageBuilder.withPayload("hello")
.setHeader(FunctionProperties.PREFIX + ".routing-expression", "'echoFlux'").build();
Flux resultFlux = (Flux) function.apply(Flux.just(message));
resultFlux.subscribe();
Assertions.assertThrows(Exception.class, resultFlux::subscribe);
}
@SuppressWarnings({ "unchecked", "rawtypes" })
@@ -135,7 +134,7 @@ public class RoutingFunctionTests {
// no function.definition header or function property
try {
function.apply(MessageBuilder.withPayload("hello").build());
fail();
Assertions.fail();
}
catch (Exception e) {
//ignore
@@ -144,7 +143,7 @@ public class RoutingFunctionTests {
// non existing function
try {
function.apply(MessageBuilder.withPayload("hello").setHeader(FunctionProperties.PREFIX + ".definition", "blah").build());
fail();
Assertions.fail();
}
catch (Exception e) {
//ignore
@@ -176,7 +175,7 @@ public class RoutingFunctionTests {
@Bean
public Function<String, String> uppercase() {
return v -> v.toUpperCase();
return String::toUpperCase;
}
@Bean

5
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/string/FunctionalStringSourceTests.java
View File

@@ -18,14 +18,12 @@ package org.springframework.cloud.function.context.string;
import java.util.function.Function;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.function.context.FunctionCatalog;
import org.springframework.cloud.function.context.test.FunctionalSpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import static org.assertj.core.api.Assertions.assertThat;
@@ -35,7 +33,6 @@ import static org.assertj.core.api.Assertions.assertThat;
* @author Dave Syer
*
*/
@RunWith(SpringRunner.class)
// @checkstyle:off
@FunctionalSpringBootTest(classes = Object.class, properties = "spring.main.sources=org.springframework.cloud.function.context.string.FunctionalStringSourceTests.TestConfiguration")
// @checkstyle:on

5
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/test/FunctionalTests.java
View File

@@ -18,14 +18,12 @@ package org.springframework.cloud.function.context.test;
import java.util.function.Function;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.jupiter.api.Test;
import reactor.core.publisher.Flux;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringBootConfiguration;
import org.springframework.cloud.function.context.FunctionCatalog;
import org.springframework.test.context.junit4.SpringRunner;
import static org.assertj.core.api.Assertions.assertThat;
@@ -33,7 +31,6 @@ import static org.assertj.core.api.Assertions.assertThat;
* @author Dave Syer
*
*/
@RunWith(SpringRunner.class)
@FunctionalSpringBootTest
public class FunctionalTests {

74
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/utils/JsonMapperTests.java
View File

@@ -16,15 +16,13 @@
package org.springframework.cloud.function.utils;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Stream;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.gson.Gson;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.MethodSource;
import org.springframework.cloud.function.json.GsonMapper;
import org.springframework.cloud.function.json.JacksonMapper;
@@ -38,70 +36,68 @@ import static org.assertj.core.api.Assertions.assertThat;
* @author Oleg Zhurakousky
*
*/
@RunWith(Parameterized.class)
public class JsonMapperTests {
private JsonMapper mapper;
public JsonMapperTests(JsonMapper mapper) {
this.mapper = mapper;
public static Stream<JsonMapper> params() {
return Stream.of(new GsonMapper(new Gson()), new JacksonMapper(new ObjectMapper()));
}
@Parameters
public static List<Object[]> params() {
return Arrays.asList(new Object[] { new GsonMapper(new Gson()) },
new Object[] { new JacksonMapper(new ObjectMapper()) });
}
@Test
public void vanillaArray() {
@ParameterizedTest
@MethodSource("params")
public void vanillaArray(JsonMapper mapper) {
String json = "[{\"value\":\"foo\"},{\"value\":\"foo\"}]";
List<Foo> list = this.mapper.fromJson(json,
List<Foo> list = mapper.fromJson(json,
ResolvableType.forClassWithGenerics(List.class, Foo.class).getType());
assertThat(list).hasSize(2);
assertThat(list.get(0).getValue()).isEqualTo("foo");
assertThat(this.mapper.toString(list)).isEqualTo(json);
assertThat(mapper.toString(list)).isEqualTo(json);
}
@Test
public void intArray() {
List<Integer> list = this.mapper.fromJson("[123,456]",
@ParameterizedTest
@MethodSource("params")
public void intArray(JsonMapper mapper) {
List<Integer> list = mapper.fromJson("[123,456]",
ResolvableType.forClassWithGenerics(List.class, Integer.class).getType());
assertThat(list).hasSize(2);
assertThat(list.get(0)).isEqualTo(123);
}
@Test
public void emptyArray() {
List<Foo> list = this.mapper.fromJson("[]",
@ParameterizedTest
@MethodSource("params")
public void emptyArray(JsonMapper mapper) {
List<Foo> list = mapper.fromJson("[]",
ResolvableType.forClassWithGenerics(List.class, Foo.class).getType());
assertThat(list).hasSize(0);
}
@Test
public void vanillaObject() {
@ParameterizedTest
@MethodSource("params")
public void vanillaObject(JsonMapper mapper) {
String json = "{\"value\":\"foo\"}";
Foo foo = this.mapper.fromJson(json, Foo.class);
Foo foo = mapper.fromJson(json, Foo.class);
assertThat(foo.getValue()).isEqualTo("foo");
assertThat(this.mapper.toString(foo)).isEqualTo(json);
assertThat(mapper.toString(foo)).isEqualTo(json);
}
@Test
public void stringRepresentingJson() {
@ParameterizedTest
@MethodSource("params")
public void stringRepresentingJson(JsonMapper mapper) {
String json = "{\"value\":\"foo\"}";
byte[] bytes = this.mapper.toJson(json);
byte[] bytes = mapper.toJson(json);
assertThat(new String(bytes)).isEqualTo(json);
}
@Test
public void intValue() {
int foo = this.mapper.fromJson("123", Integer.class);
@ParameterizedTest
@MethodSource("params")
public void intValue(JsonMapper mapper) {
int foo = mapper.fromJson("123", Integer.class);
assertThat(foo).isEqualTo(123);
}
@Test
public void empty() {
Foo foo = this.mapper.fromJson("{}", Foo.class);
@ParameterizedTest
@MethodSource("params")
public void empty(JsonMapper mapper) {
Foo foo = mapper.fromJson("{}", Foo.class);
assertThat(foo.getValue()).isNull();
}