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/*
* Copyright © 2012 The Feign Authors (feign@commonhaus.dev)
*
* 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 feign.moshi;
import static feign.Util.UTF_8;
import static org.assertj.core.api.Assertions.assertThat;
import com.squareup.moshi.JsonAdapter;
import com.squareup.moshi.Moshi;
import feign.Request;
import feign.Response;
import feign.Util;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import org.junit.jupiter.api.Test;
class MoshiDecoderTest {
@Test
void decodes() throws Exception {
class Zone extends LinkedHashMap<String, Object> {
Zone(String name) {
this(name, null);
}
Zone(String name, String id) {
put("name", name);
if (id != null) {
put("id", id);
}
}
private static final long serialVersionUID = 1L;
}
List<Zone> zones = new LinkedList<>();
zones.add(new Zone("denominator.io."));
zones.add(new Zone("denominator.io.", "ABCD"));
Response response =
Response.builder()
.status(200)
.reason("OK")
.headers(Collections.emptyMap())
.request(
Request.create(
Request.HttpMethod.GET, "/api", Collections.emptyMap(), null, Util.UTF_8))
.body(zonesJson, UTF_8)
.build();
assertThat(new MoshiDecoder().decode(response, List.class)).isEqualTo(zones);
}
private String zonesJson =
"""
[
{
"name": "denominator.io."
},
{
"name": "denominator.io.",
"id": "ABCD"
}
]
""";
private final String videoGamesJson =
"""
{
\
"hero": {
\
"enemy": "Bowser",
\
"name": "Luigi"
\
},
\
"name": "Super Mario"
\
}\
""";
@Test
void nullBodyDecodesToNull() throws Exception {
Response response =
Response.builder()
.status(204)
.reason("OK")
.headers(Collections.emptyMap())
.request(
Request.create(
Request.HttpMethod.GET, "/api", Collections.emptyMap(), null, Util.UTF_8))
.build();
assertThat(new MoshiDecoder().decode(response, String.class)).isNull();
}
@Test
void emptyBodyDecodesToNull() throws Exception {
Response response =
Response.builder()
.status(204)
.reason("OK")
.headers(Collections.emptyMap())
.request(
Request.create(
Request.HttpMethod.GET, "/api", Collections.emptyMap(), null, Util.UTF_8))
.body(new byte[0])
.build();
assertThat(new MoshiDecoder().decode(response, String.class)).isNull();
}
/** Enabled via {@link feign.Feign.Builder#dismiss404()} */
@Test
void notFoundDecodesToEmpty() throws Exception {
Response response =
Response.builder()
.status(404)
.reason("NOT FOUND")
.headers(Collections.emptyMap())
.request(
Request.create(
Request.HttpMethod.GET, "/api", Collections.emptyMap(), null, Util.UTF_8))
.build();
assertThat((byte[]) new MoshiDecoder().decode(response, byte[].class)).isEmpty();
}
@Test
void customDecoder() throws Exception {
final UpperZoneJSONAdapter upperZoneAdapter = new UpperZoneJSONAdapter();
MoshiDecoder decoder = new MoshiDecoder(Collections.singleton(upperZoneAdapter));
List<Zone> zones = new LinkedList<>();
zones.add(new Zone("DENOMINATOR.IO."));
zones.add(new Zone("DENOMINATOR.IO.", "ABCD"));
Response response =
Response.builder()
.status(200)
.reason("OK")
.headers(Collections.emptyMap())
.request(
Request.create(
Request.HttpMethod.GET, "/api", Collections.emptyMap(), null, Util.UTF_8))
.body(zonesJson, UTF_8)
.build();
assertThat(decoder.decode(response, UpperZoneJSONAdapter.class)).isEqualTo(zones);
}
@Test
void customObjectDecoder() throws Exception {
final JsonAdapter<VideoGame> videoGameJsonAdapter =
new Moshi.Builder().build().adapter(VideoGame.class);
MoshiDecoder decoder = new MoshiDecoder(Collections.singleton(videoGameJsonAdapter));
VideoGame videoGame = new VideoGame("Super Mario", "Luigi", "Bowser");
Response response =
Response.builder()
.status(200)
.reason("OK")
.headers(Collections.emptyMap())
.request(
Request.create(
Request.HttpMethod.GET, "/api", Collections.emptyMap(), null, Util.UTF_8))
.body(videoGamesJson, UTF_8)
.build();
VideoGame actual = (VideoGame) decoder.decode(response, videoGameJsonAdapter.getClass());
assertThat(actual).isEqualToComparingFieldByFieldRecursively(videoGame);
}
}