/
OptionalObjectToStringConverterFactoryTest.java
168 lines (150 loc) · 8.1 KB
/
OptionalObjectToStringConverterFactoryTest.java
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/*
* (c) Copyright 2017 Palantir Technologies Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.palantir.conjure.java.client.retrofit2;
import static org.assertj.core.api.Assertions.assertThat;
import com.google.common.collect.ImmutableList;
import com.palantir.conjure.java.client.retrofit2.OptionalObjectToStringConverterFactory.Java8OptionalDoubleStringConverter;
import com.palantir.conjure.java.client.retrofit2.OptionalObjectToStringConverterFactory.Java8OptionalIntStringConverter;
import com.palantir.conjure.java.client.retrofit2.OptionalObjectToStringConverterFactory.Java8OptionalLongStringConverter;
import io.leangen.geantyref.AnnotationFormatException;
import io.leangen.geantyref.TypeFactory;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Map;
import java.util.OptionalDouble;
import java.util.OptionalInt;
import java.util.OptionalLong;
import java.util.stream.Collectors;
import javax.annotation.Nonnull;
import org.assertj.core.api.Assertions;
import org.junit.jupiter.api.Test;
import retrofit2.http.Header;
import retrofit2.http.Path;
import retrofit2.http.Query;
public final class OptionalObjectToStringConverterFactoryTest {
private OptionalObjectToStringConverterFactory factory = OptionalObjectToStringConverterFactory.INSTANCE;
private OptionalObjectToStringConverterFactory.GuavaOptionalStringConverter guavaConverter =
OptionalObjectToStringConverterFactory.GuavaOptionalStringConverter.INSTANCE;
private OptionalObjectToStringConverterFactory.Java8OptionalStringConverter java8Converter =
OptionalObjectToStringConverterFactory.Java8OptionalStringConverter.INSTANCE;
@Test
public void testRequiresPathHeaderQueryAnnotation() throws Exception {
// Java8
assertThat(factory.stringConverter(java.util.Optional.class, createAnnotations(Header.class), null))
.isNotNull();
assertThat(factory.stringConverter(java.util.Optional.class, createAnnotations(Path.class), null))
.isNotNull();
assertThat(factory.stringConverter(java.util.Optional.class, createAnnotations(Query.class), null))
.isNotNull();
assertThat(factory.stringConverter(java.util.Optional.class, createAnnotations(Nonnull.class), null))
.isNull();
assertThat(factory.stringConverter(OptionalInt.class, createAnnotations(Header.class), null))
.isNotNull();
assertThat(factory.stringConverter(OptionalInt.class, createAnnotations(Path.class), null))
.isNotNull();
assertThat(factory.stringConverter(OptionalInt.class, createAnnotations(Query.class), null))
.isNotNull();
assertThat(factory.stringConverter(OptionalInt.class, createAnnotations(Nonnull.class), null))
.isNull();
assertThat(factory.stringConverter(OptionalDouble.class, createAnnotations(Header.class), null))
.isNotNull();
assertThat(factory.stringConverter(OptionalDouble.class, createAnnotations(Path.class), null))
.isNotNull();
assertThat(factory.stringConverter(OptionalDouble.class, createAnnotations(Query.class), null))
.isNotNull();
assertThat(factory.stringConverter(OptionalDouble.class, createAnnotations(Nonnull.class), null))
.isNull();
assertThat(factory.stringConverter(OptionalLong.class, createAnnotations(Header.class), null))
.isNotNull();
assertThat(factory.stringConverter(OptionalLong.class, createAnnotations(Path.class), null))
.isNotNull();
assertThat(factory.stringConverter(OptionalLong.class, createAnnotations(Query.class), null))
.isNotNull();
assertThat(factory.stringConverter(OptionalLong.class, createAnnotations(Nonnull.class), null))
.isNull();
// Guava
assertThat(factory.stringConverter(
com.google.common.base.Optional.class, createAnnotations(Header.class), null))
.isNotNull();
assertThat(factory.stringConverter(com.google.common.base.Optional.class, createAnnotations(Path.class), null))
.isNotNull();
assertThat(factory.stringConverter(com.google.common.base.Optional.class, createAnnotations(Query.class), null))
.isNotNull();
assertThat(factory.stringConverter(
com.google.common.base.Optional.class, createAnnotations(Nonnull.class), null))
.isNull();
}
@Test
public void testUnwrapsJava8Optional() throws Exception {
assertThat(guavaConverter.convert(guavaOptional("foo"))).isEqualTo("foo");
assertThat(guavaConverter.convert(guavaOptional(null))).isEqualTo(null);
assertThat(java8Converter.convert(java8Optional("foo"))).isEqualTo("foo");
assertThat(java8Converter.convert(java8Optional(null))).isEqualTo(null);
}
@Test
public void testUnwrapsJava8OptionalInt() throws Exception {
Assertions.assertThat(Java8OptionalIntStringConverter.INSTANCE.convert(OptionalInt.of(12345)))
.isEqualTo("12345");
assertThat(Java8OptionalIntStringConverter.INSTANCE.convert(OptionalInt.empty()))
.isEqualTo(null);
}
@Test
public void testUnwrapsJava8OptionalDouble() throws Exception {
Assertions.assertThat(Java8OptionalDoubleStringConverter.INSTANCE.convert(OptionalDouble.of(12345.678)))
.isEqualTo("12345.678");
assertThat(Java8OptionalDoubleStringConverter.INSTANCE.convert(OptionalDouble.empty()))
.isEqualTo(null);
}
@Test
public void testUnwrapsJava8OptionalLong() throws Exception {
Assertions.assertThat(Java8OptionalLongStringConverter.INSTANCE.convert(OptionalLong.of(1234567890123L)))
.isEqualTo("1234567890123");
assertThat(Java8OptionalLongStringConverter.INSTANCE.convert(OptionalLong.empty()))
.isEqualTo(null);
}
@Test
public void testSerializesWrappedObjectToString() throws Exception {
assertThat(guavaConverter.convert(guavaOptional(ImmutableList.of(1, 2))))
.isEqualTo("[1, 2]");
assertThat(guavaConverter.convert(guavaOptional(new Object()))).startsWith("java.lang.Object@");
assertThat(java8Converter.convert(java8Optional(ImmutableList.of(1, 2))))
.isEqualTo("[1, 2]");
assertThat(java8Converter.convert(java8Optional(new Object()))).startsWith("java.lang.Object@");
}
private static <T> com.google.common.base.Optional<T> guavaOptional(T value) {
return com.google.common.base.Optional.fromNullable(value);
}
private static <T> java.util.Optional<T> java8Optional(T value) {
return java.util.Optional.ofNullable(value);
}
@SuppressWarnings("unchecked")
private Annotation[] createAnnotations(Class... clazz) {
Annotation[] annotations = new Annotation[clazz.length];
for (int i = 0; i < clazz.length; ++i) {
try {
// Set bogus string values for any annotation methods that don't have a default
Map<String, Object> map = Arrays.stream(clazz[i].getDeclaredMethods())
.filter(method -> method.getDefaultValue() == null)
.collect(Collectors.toMap(Method::getName, _method -> ""));
annotations[i] = TypeFactory.annotation(clazz[i], map);
} catch (AnnotationFormatException e) {
throw new RuntimeException(e);
}
}
return annotations;
}
}