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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;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertThrows;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;
class FeignExceptionTest {
@Test
void canCreateWithRequestAndResponse() {
Request request =
Request.create(
Request.HttpMethod.GET,
"/home",
Collections.emptyMap(),
"data".getBytes(StandardCharsets.UTF_8),
StandardCharsets.UTF_8,
null);
Response response =
Response.builder()
.status(400)
.body("response".getBytes(StandardCharsets.UTF_8))
.request(request)
.build();
FeignException exception =
FeignException.errorReading(request, response, new IOException("socket closed"));
assertThat(exception.responseBody()).isNotEmpty();
assertThat(exception.hasRequest()).isTrue();
assertThat(exception.request()).isNotNull();
}
@Test
void canCreateWithRequestOnly() {
Request request =
Request.create(
Request.HttpMethod.GET,
"/home",
Collections.emptyMap(),
"data".getBytes(StandardCharsets.UTF_8),
StandardCharsets.UTF_8,
null);
FeignException exception =
FeignException.errorExecuting(request, new IOException("connection timeout"));
assertThat(exception.responseBody()).isEmpty();
assertThat(exception.content()).isNullOrEmpty();
assertThat(exception.hasRequest()).isTrue();
assertThat(exception.request()).isNotNull();
}
@Test
void createFeignExceptionWithCorrectCharsetResponse() {
Map<String, Collection<String>> map = new HashMap<>();
map.put("connection", new ArrayList<>(Collections.singletonList("keep-alive")));
map.put("content-length", new ArrayList<>(Collections.singletonList("100")));
map.put(
"content-type",
new ArrayList<>(Collections.singletonList("application/json;charset=UTF-16BE")));
Request request =
Request.create(
Request.HttpMethod.GET,
"/home",
Collections.emptyMap(),
"data".getBytes(StandardCharsets.UTF_16BE),
StandardCharsets.UTF_16BE,
null);
Response response =
Response.builder()
.status(400)
.body("response".getBytes(StandardCharsets.UTF_16BE))
.headers(map)
.request(request)
.build();
FeignException exception = FeignException.errorStatus("methodKey", response);
assertThat(exception.getMessage())
.isEqualTo("[400] during [GET] to [/home] [methodKey]: [response]");
}
@ParameterizedTest
@ValueSource(
strings = {
"application/json;charset=\"UTF-16BE\"",
"application/json; charset=UTF-16BE",
"application/json; charset=\"UTF-16BE\"",
"application/json;charset=UTF-16BE"
})
void createFeignExceptionWithCorrectCharsetResponseButDifferentContentTypeFormats(
String contentType) {
Map<String, Collection<String>> map = new HashMap<>();
map.put("connection", new ArrayList<>(Collections.singletonList("keep-alive")));
map.put("content-length", new ArrayList<>(Collections.singletonList("100")));
map.put("content-type", new ArrayList<>(Collections.singletonList(contentType)));
Request request =
Request.create(
Request.HttpMethod.GET,
"/home",
Collections.emptyMap(),
"data".getBytes(StandardCharsets.UTF_16BE),
StandardCharsets.UTF_16BE,
null);
Response response =
Response.builder()
.status(400)
.body("response".getBytes(StandardCharsets.UTF_16BE))
.headers(map)
.request(request)
.build();
FeignException exception = FeignException.errorStatus("methodKey", response);
assertThat(exception.getMessage())
.isEqualTo("[400] during [GET] to [/home] [methodKey]: [response]");
}
@Test
void createFeignExceptionWithErrorCharsetResponse() {
Map<String, Collection<String>> map = new HashMap<>();
map.put("connection", new ArrayList<>(Collections.singletonList("keep-alive")));
map.put("content-length", new ArrayList<>(Collections.singletonList("100")));
map.put(
"content-type",
new ArrayList<>(Collections.singletonList("application/json;charset=UTF-8")));
Request request =
Request.create(
Request.HttpMethod.GET,
"/home",
Collections.emptyMap(),
"data".getBytes(StandardCharsets.UTF_16BE),
StandardCharsets.UTF_16BE,
null);
Response response =
Response.builder()
.status(400)
.body("response".getBytes(StandardCharsets.UTF_16BE))
.headers(map)
.request(request)
.build();
FeignException exception = FeignException.errorStatus("methodKey", response);
assertThat(exception.getMessage())
.isNotEqualTo("[400] during [GET] to [/home] [methodKey]: [response]");
}
@Test
void canGetResponseHeadersFromException() {
Request request =
Request.create(
Request.HttpMethod.GET,
"/home",
Collections.emptyMap(),
"data".getBytes(StandardCharsets.UTF_8),
StandardCharsets.UTF_8,
null);
Map<String, Collection<String>> responseHeaders = new HashMap<>();
responseHeaders.put("Content-Type", Collections.singletonList("text/plain"));
responseHeaders.put("Cookie", Arrays.asList("cookie1", "cookie2"));
Response response =
Response.builder()
.request(request)
.body("some text", StandardCharsets.UTF_8)
.headers(responseHeaders)
.build();
FeignException exception = FeignException.errorStatus("methodKey", response);
assertThat(exception.responseHeaders())
.hasEntrySatisfying(
"Content-Type",
value -> {
assertThat(value).contains("text/plain");
})
.hasEntrySatisfying(
"Cookie",
value -> {
assertThat(value).contains("cookie1", "cookie2");
});
}
@Test
void lengthOfBodyExceptionTest() {
String bigResponse =
"""
I love a storm in early May
When springtime’s boisterous, firstborn thunder
Over the sky will gaily wander
And growl and roar as though in play.
A peal, another — gleeful, cheering…
Rain, raindust… On the trees, behold!-
The drops hang, each a long pearl earring;
Bright sunshine paints the thin threads gold.
A stream downhill goes rushing reckless,
And in the woods the birds rejoice.
Din. Clamour. Noise. All nature echoes
The thunder’s youthful, merry voice.
You’ll say: ‘Tis laughing, carefree Hebe —
She fed her father’s eagle, and
The Storm Cup brimming with a seething
And bubbling wine dropped from her hand\
""";
Request request =
Request.create(
Request.HttpMethod.GET,
"/home",
Collections.emptyMap(),
"data".getBytes(StandardCharsets.UTF_8),
StandardCharsets.UTF_8,
null);
Response response =
Response.builder()
.status(400)
.request(request)
.body(bigResponse, StandardCharsets.UTF_8)
.build();
FeignException defaultException = FeignException.errorStatus("methodKey", response);
assertThat(defaultException.getMessage().length()).isLessThan(bigResponse.length());
FeignException customLengthBodyException =
FeignException.errorStatus("methodKey", response, 4000, 2000);
assertThat(customLengthBodyException.getMessage().length())
.isGreaterThanOrEqualTo(bigResponse.length());
}
@Test
void nullRequestShouldThrowNPEwThrowable() {
assertThrows(
NullPointerException.class, () -> new Derived(404, "message", null, new Throwable()));
}
@Test
void nullRequestShouldThrowNPEwThrowableAndBytes() {
assertThrows(
NullPointerException.class,
() ->
new Derived(
404, "message", null, new Throwable(), new byte[1], Collections.emptyMap()));
}
@Test
void nullRequestShouldThrowNPE() {
assertThrows(NullPointerException.class, () -> new Derived(404, "message", null));
}
@Test
void nullRequestShouldThrowNPEwBytes() {
assertThrows(
NullPointerException.class,
() -> new Derived(404, "message", null, new byte[1], Collections.emptyMap()));
}
static class Derived extends FeignException {
public Derived(int status, String message, Request request, Throwable cause) {
super(status, message, request, cause);
}
public Derived(
int status,
String message,
Request request,
Throwable cause,
byte[] content,
Map<String, Collection<String>> headers) {
super(status, message, request, cause, content, headers);
}
public Derived(int status, String message, Request request) {
super(status, message, request);
}
public Derived(
int status,
String message,
Request request,
byte[] content,
Map<String, Collection<String>> headers) {
super(status, message, request, content, headers);
}
}
}