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/**
* Copyright 2012-2021 The Feign Authors
*
* 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 com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import feign.Feign.ResponseMappingDecoder;
import feign.Request.HttpMethod;
import feign.Target.HardCodedTarget;
import feign.querymap.BeanQueryMapEncoder;
import feign.querymap.FieldQueryMapEncoder;
import okhttp3.mockwebserver.MockResponse;
import okhttp3.mockwebserver.MockWebServer;
import okhttp3.mockwebserver.SocketPolicy;
import okio.Buffer;
import org.assertj.core.util.Maps;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import java.io.IOException;
import java.lang.reflect.Type;
import java.net.URI;
import java.util.*;
import java.util.concurrent.atomic.AtomicReference;
import feign.codec.DecodeException;
import feign.codec.Decoder;
import feign.codec.EncodeException;
import feign.codec.Encoder;
import feign.codec.ErrorDecoder;
import feign.codec.StringDecoder;
import static feign.ExceptionPropagationPolicy.UNWRAP;
import static feign.Util.UTF_8;
import static feign.assertj.MockWebServerAssertions.assertThat;
import static org.assertj.core.data.MapEntry.entry;
import static org.hamcrest.CoreMatchers.isA;
import static org.junit.Assert.*;
@SuppressWarnings("deprecation")
public class FeignTest {
@Rule
public final ExpectedException thrown = ExpectedException.none();
@Rule
public final MockWebServer server = new MockWebServer();
@Test
public void iterableQueryParams() throws Exception {
server.enqueue(new MockResponse().setBody("foo"));
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
api.queryParams("user", Arrays.asList("apple", "pear"));
assertThat(server.takeRequest())
.hasPath("/?1=user&2=apple&2=pear");
}
@Test
public void arrayQueryMapParams() throws Exception {
server.enqueue(new MockResponse().setBody("foo"));
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
api.queryMapWithArrayValues(Maps.newHashMap("1", new String[] {"apple", "pear"}));
assertThat(server.takeRequest())
.hasPath("/?1=apple&1=pear");
}
@Test
public void postTemplateParamsResolve() throws Exception {
server.enqueue(new MockResponse().setBody("foo"));
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
api.login("netflix", "denominator", "password");
assertThat(server.takeRequest())
.hasBody(
"{\"customer_name\": \"netflix\", \"user_name\": \"denominator\", \"password\": \"password\"}");
}
@Test
public void postFormParams() throws Exception {
server.enqueue(new MockResponse().setBody("foo"));
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
api.form("netflix", "denominator", "password");
assertThat(server.takeRequest())
.hasBody(
"{\"customer_name\":\"netflix\",\"user_name\":\"denominator\",\"password\":\"password\"}");
}
@Test
public void postBodyParam() throws Exception {
server.enqueue(new MockResponse().setBody("foo"));
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
api.body(Arrays.asList("netflix", "denominator", "password"));
assertThat(server.takeRequest())
.hasHeaders(entry("Content-Length", Collections.singletonList("32")))
.hasBody("[netflix, denominator, password]");
}
/**
* The type of a parameter value may not be the desired type to encode as. Prefer the interface
* type.
*/
@Test
public void bodyTypeCorrespondsWithParameterType() throws Exception {
server.enqueue(new MockResponse().setBody("foo"));
final AtomicReference<Type> encodedType = new AtomicReference<>();
TestInterface api = new TestInterfaceBuilder()
.encoder(new Encoder.Default() {
@Override
public void encode(Object object, Type bodyType, RequestTemplate template) {
encodedType.set(bodyType);
}
})
.target("http://localhost:" + server.getPort());
api.body(Arrays.asList("netflix", "denominator", "password"));
server.takeRequest();
assertThat(encodedType.get()).isEqualTo(new TypeToken<List<String>>() {}.getType());
}
@Test
public void postGZIPEncodedBodyParam() throws Exception {
server.enqueue(new MockResponse().setBody("foo"));
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
api.gzipBody(Arrays.asList("netflix", "denominator", "password"));
assertThat(server.takeRequest())
.hasNoHeaderNamed("Content-Length")
.hasGzippedBody("[netflix, denominator, password]".getBytes(UTF_8));
}
@Test
public void postDeflateEncodedBodyParam() throws Exception {
server.enqueue(new MockResponse().setBody("foo"));
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
api.deflateBody(Arrays.asList("netflix", "denominator", "password"));
assertThat(server.takeRequest())
.hasNoHeaderNamed("Content-Length")
.hasDeflatedBody("[netflix, denominator, password]".getBytes(UTF_8));
}
@Test
public void singleInterceptor() throws Exception {
server.enqueue(new MockResponse().setBody("foo"));
TestInterface api = new TestInterfaceBuilder()
.requestInterceptor(new ForwardedForInterceptor())
.target("http://localhost:" + server.getPort());
api.post();
assertThat(server.takeRequest())
.hasHeaders(entry("X-Forwarded-For", Collections.singletonList("origin.host.com")));
}
@Test
public void multipleInterceptor() throws Exception {
server.enqueue(new MockResponse().setBody("foo"));
TestInterface api = new TestInterfaceBuilder()
.requestInterceptor(new ForwardedForInterceptor())
.requestInterceptor(new UserAgentInterceptor())
.target("http://localhost:" + server.getPort());
api.post();
assertThat(server.takeRequest())
.hasHeaders(entry("X-Forwarded-For", Collections.singletonList("origin.host.com")),
entry("User-Agent", Collections.singletonList("Feign")));
}
@Test
public void customExpander() throws Exception {
server.enqueue(new MockResponse());
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
api.expand(new Date(1234L));
assertThat(server.takeRequest())
.hasPath("/?date=1234");
}
@Test
public void customExpanderListParam() throws Exception {
server.enqueue(new MockResponse());
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
api.expandList(Arrays.asList(new Date(1234L), new Date(12345L)));
assertThat(server.takeRequest())
.hasPath("/?date=1234&date=12345");
}
@Test
public void customExpanderNullParam() throws Exception {
server.enqueue(new MockResponse());
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
api.expandList(Arrays.asList(new Date(1234l), null));
assertThat(server.takeRequest())
.hasPath("/?date=1234");
}
@Test
public void headerMap() throws Exception {
server.enqueue(new MockResponse());
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
Map<String, Object> headerMap = new LinkedHashMap<String, Object>();
headerMap.put("Content-Type", "myContent");
headerMap.put("Custom-Header", "fooValue");
api.headerMap(headerMap);
assertThat(server.takeRequest())
.hasHeaders(
entry("Content-Type", Arrays.asList("myContent")),
entry("Custom-Header", Arrays.asList("fooValue")));
}
@Test
public void headerMapWithHeaderAnnotations() throws Exception {
server.enqueue(new MockResponse());
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
Map<String, Object> headerMap = new LinkedHashMap<String, Object>();
headerMap.put("Custom-Header", "fooValue");
api.headerMapWithHeaderAnnotations(headerMap);
// header map should be additive for headers provided by annotations
assertThat(server.takeRequest())
.hasHeaders(
entry("Content-Encoding", Collections.singletonList("deflate")),
entry("Custom-Header", Collections.singletonList("fooValue")));
server.enqueue(new MockResponse());
headerMap.put("Content-Encoding", "overrideFromMap");
api.headerMapWithHeaderAnnotations(headerMap);
/*
* @HeaderMap map values no longer override @Header parameters. This caused confusion as it is
* valid to have more than one value for a header.
*/
assertThat(server.takeRequest())
.hasHeaders(
entry("Content-Encoding", Arrays.asList("deflate", "overrideFromMap")),
entry("Custom-Header", Collections.singletonList("fooValue")));
}
@Test
public void queryMap() throws Exception {
server.enqueue(new MockResponse());
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
Map<String, Object> queryMap = new LinkedHashMap<>();
queryMap.put("name", "alice");
queryMap.put("fooKey", "fooValue");
api.queryMap(queryMap);
assertThat(server.takeRequest())
.hasPath("/?name=alice&fooKey=fooValue");
}
@Test
public void queryMapIterableValuesExpanded() throws Exception {
server.enqueue(new MockResponse());
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
Map<String, Object> queryMap = new LinkedHashMap<>();
queryMap.put("name", Arrays.asList("Alice", "Bob"));
queryMap.put("fooKey", "fooValue");
queryMap.put("emptyListKey", new ArrayList<String>());
queryMap.put("emptyStringKey", ""); // empty values are ignored.
api.queryMap(queryMap);
assertThat(server.takeRequest())
.hasPath("/?name=Alice&name=Bob&fooKey=fooValue&emptyStringKey");
}
@Test
public void queryMapWithQueryParams() throws Exception {
TestInterface api = new TestInterfaceBuilder()
.target("http://localhost:" + server.getPort());
server.enqueue(new MockResponse());
Map<String, Object> queryMap = new LinkedHashMap<String, Object>();
queryMap.put("fooKey", "fooValue");
api.queryMapWithQueryParams("alice", queryMap);
// query map should be expanded after built-in parameters
assertThat(server.takeRequest())
.hasPath("/?name=alice&fooKey=fooValue");
server.enqueue(new MockResponse());
queryMap = new LinkedHashMap<String, Object>();
queryMap.put("name", "bob");
api.queryMapWithQueryParams("alice", queryMap);
// queries are additive
assertThat(server.takeRequest())
.hasPath("/?name=alice&name=bob");
server.enqueue(new MockResponse());
queryMap = new LinkedHashMap<String, Object>();
queryMap.put("name", null);
api.queryMapWithQueryParams("alice", queryMap);
// null value for a query map key removes query parameter
assertThat(server.takeRequest())
.hasPath("/?name=alice");
}
@Test
public void queryMapValueStartingWithBrace() throws Exception {
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
server.enqueue(new MockResponse());
Map<String, Object> queryMap = new LinkedHashMap<String, Object>();
queryMap.put("name", "{alice");
api.queryMap(queryMap);
assertThat(server.takeRequest())
.hasPath("/?name=%7Balice");
server.enqueue(new MockResponse());
queryMap = new LinkedHashMap<String, Object>();
queryMap.put("{name", "alice");
api.queryMap(queryMap);
assertThat(server.takeRequest())
.hasPath("/?%7Bname=alice");
server.enqueue(new MockResponse());
queryMap = new LinkedHashMap<String, Object>();
queryMap.put("name", "%7Balice");
api.queryMapEncoded(queryMap);
assertThat(server.takeRequest())
.hasPath("/?name=%7Balice");
server.enqueue(new MockResponse());
queryMap = new LinkedHashMap<String, Object>();
queryMap.put("%7Bname", "%7Balice");
api.queryMapEncoded(queryMap);
assertThat(server.takeRequest())
.hasPath("/?%7Bname=%7Balice");
}
@Test
public void queryMapPojoWithFullParams() throws Exception {
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
CustomPojo customPojo = new CustomPojo("Name", 3);
server.enqueue(new MockResponse());
api.queryMapPojo(customPojo);
assertThat(server.takeRequest())
.hasQueryParams(Arrays.asList("name=Name", "number=3"));
}
@Test
public void queryMapPojoWithPartialParams() throws Exception {
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
CustomPojo customPojo = new CustomPojo("Name", null);
server.enqueue(new MockResponse());
api.queryMapPojo(customPojo);
assertThat(server.takeRequest())
.hasPath("/?name=Name");
}
@Test
public void queryMapPojoWithEmptyParams() throws Exception {
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
CustomPojo customPojo = new CustomPojo(null, null);
server.enqueue(new MockResponse());
api.queryMapPojo(customPojo);
assertThat(server.takeRequest())
.hasPath("/");
}
@Test
public void configKeyFormatsAsExpected() throws Exception {
assertEquals("TestInterface#post()",
Feign.configKey(TestInterface.class, TestInterface.class.getDeclaredMethod("post")));
assertEquals("TestInterface#uriParam(String,URI,String)",
Feign.configKey(TestInterface.class, TestInterface.class
.getDeclaredMethod("uriParam", String.class, URI.class,
String.class)));
}
@Test
public void configKeyUsesChildType() throws Exception {
assertEquals("List#iterator()",
Feign.configKey(List.class, Iterable.class.getDeclaredMethod("iterator")));
}
@Test
public void canOverrideErrorDecoder() throws Exception {
server.enqueue(new MockResponse().setResponseCode(400).setBody("foo"));
thrown.expect(IllegalArgumentException.class);
thrown.expectMessage("bad zone name");
TestInterface api = new TestInterfaceBuilder()
.errorDecoder(new IllegalArgumentExceptionOn400())
.target("http://localhost:" + server.getPort());
api.post();
}
@Test
public void retriesLostConnectionBeforeRead() throws Exception {
server.enqueue(new MockResponse().setSocketPolicy(SocketPolicy.DISCONNECT_AT_START));
server.enqueue(new MockResponse().setBody("success!"));
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
api.post();
assertEquals(2, server.getRequestCount());
}
@Test
public void overrideTypeSpecificDecoder() throws Exception {
server.enqueue(new MockResponse().setBody("success!"));
TestInterface api = new TestInterfaceBuilder()
.decoder(new Decoder() {
@Override
public Object decode(Response response, Type type) {
return "fail";
}
}).target("http://localhost:" + server.getPort());
assertEquals(api.post(), "fail");
}
/**
* when you must parse a 2xx status to determine if the operation succeeded or not.
*/
@Test
public void retryableExceptionInDecoder() throws Exception {
server.enqueue(new MockResponse().setBody("retry!"));
server.enqueue(new MockResponse().setBody("success!"));
TestInterface api = new TestInterfaceBuilder()
.decoder(new StringDecoder() {
@Override
public Object decode(Response response, Type type) throws IOException {
String string = super.decode(response, type).toString();
if ("retry!".equals(string)) {
throw new RetryableException(response.status(), string, HttpMethod.POST, null,
response.request());
}
return string;
}
}).target("http://localhost:" + server.getPort());
assertEquals(api.post(), "success!");
assertEquals(2, server.getRequestCount());
}
@Test
public void doesntRetryAfterResponseIsSent() throws Exception {
server.enqueue(new MockResponse().setBody("success!"));
thrown.expect(FeignException.class);
thrown.expectMessage("timeout reading POST http://");
TestInterface api = new TestInterfaceBuilder()
.decoder(new Decoder() {
@Override
public Object decode(Response response, Type type) throws IOException {
throw new IOException("timeout");
}
}).target("http://localhost:" + server.getPort());
api.post();
}
@Test
public void throwsFeignExceptionIncludingBody() {
server.enqueue(new MockResponse().setBody("success!"));
TestInterface api = Feign.builder()
.decoder((response, type) -> {
throw new IOException("timeout");
})
.target(TestInterface.class, "http://localhost:" + server.getPort());
try {
api.body("Request body");
} catch (FeignException e) {
assertThat(e.getMessage())
.isEqualTo("timeout reading POST http://localhost:" + server.getPort() + "/");
assertThat(e.contentUTF8()).isEqualTo("Request body");
}
}
@Test
public void throwsFeignExceptionWithoutBody() {
server.enqueue(new MockResponse().setBody("success!"));
TestInterface api = Feign.builder()
.decoder((response, type) -> {
throw new IOException("timeout");
})
.target(TestInterface.class, "http://localhost:" + server.getPort());
try {
api.noContent();
} catch (FeignException e) {
assertThat(e.getMessage())
.isEqualTo("timeout reading POST http://localhost:" + server.getPort() + "/");
assertThat(e.contentUTF8()).isEqualTo("");
}
}
@Test
public void ensureRetryerClonesItself() throws Exception {
server.enqueue(new MockResponse().setResponseCode(503).setBody("foo 1"));
server.enqueue(new MockResponse().setResponseCode(200).setBody("foo 2"));
server.enqueue(new MockResponse().setResponseCode(503).setBody("foo 3"));
server.enqueue(new MockResponse().setResponseCode(200).setBody("foo 4"));
MockRetryer retryer = new MockRetryer();
TestInterface api = Feign.builder()
.retryer(retryer)
.errorDecoder(new ErrorDecoder() {
@Override
public Exception decode(String methodKey, Response response) {
return new RetryableException(response.status(), "play it again sam!", HttpMethod.POST,
null, response.request());
}
}).target(TestInterface.class, "http://localhost:" + server.getPort());
api.post();
api.post(); // if retryer instance was reused, this statement will throw an exception
assertEquals(4, server.getRequestCount());
}
@Test
public void throwsOriginalExceptionAfterFailedRetries() throws Exception {
server.enqueue(new MockResponse().setResponseCode(503).setBody("foo 1"));
server.enqueue(new MockResponse().setResponseCode(503).setBody("foo 2"));
final String message = "the innerest";
thrown.expect(TestInterfaceException.class);
thrown.expectMessage(message);
TestInterface api = Feign.builder()
.exceptionPropagationPolicy(UNWRAP)
.retryer(new Retryer.Default(1, 1, 2))
.errorDecoder(new ErrorDecoder() {
@Override
public Exception decode(String methodKey, Response response) {
return new RetryableException(response.status(), "play it again sam!", HttpMethod.POST,
new TestInterfaceException(message), null, response.request());
}
}).target(TestInterface.class, "http://localhost:" + server.getPort());
api.post();
}
@Test
public void throwsRetryableExceptionIfNoUnderlyingCause() throws Exception {
server.enqueue(new MockResponse().setResponseCode(503).setBody("foo 1"));
server.enqueue(new MockResponse().setResponseCode(503).setBody("foo 2"));
String message = "play it again sam!";
thrown.expect(RetryableException.class);
thrown.expectMessage(message);
TestInterface api = Feign.builder()
.exceptionPropagationPolicy(UNWRAP)
.retryer(new Retryer.Default(1, 1, 2))
.errorDecoder(new ErrorDecoder() {
@Override
public Exception decode(String methodKey, Response response) {
return new RetryableException(response.status(), message, HttpMethod.POST, null,
response.request());
}
}).target(TestInterface.class, "http://localhost:" + server.getPort());
api.post();
}
@Test
public void whenReturnTypeIsResponseNoErrorHandling() {
Map<String, Collection<String>> headers = new LinkedHashMap<>();
headers.put("Location", Collections.singletonList("http://bar.com"));
final Response response = Response.builder()
.status(302)
.reason("Found")
.headers(headers)
.request(Request.create(HttpMethod.GET, "/", Collections.emptyMap(), null, Util.UTF_8))
.body(new byte[0])
.build();
// fake client as Client.Default follows redirects.
TestInterface api = Feign.builder()
.client((request, options) -> response)
.target(TestInterface.class, "http://localhost:" + server.getPort());
assertEquals(api.response().headers().get("Location"),
Collections.singletonList("http://bar.com"));
}
private static class MockRetryer implements Retryer {
boolean tripped;
@Override
public void continueOrPropagate(RetryableException e) {
if (tripped) {
throw new RuntimeException("retryer instance should never be reused");
}
tripped = true;
return;
}
@Override
public Retryer clone() {
return new MockRetryer();
}
}
@Test
public void okIfDecodeRootCauseHasNoMessage() throws Exception {
server.enqueue(new MockResponse().setBody("success!"));
thrown.expect(DecodeException.class);
TestInterface api = new TestInterfaceBuilder()
.decoder(new Decoder() {
@Override
public Object decode(Response response, Type type) throws IOException {
throw new RuntimeException();
}
}).target("http://localhost:" + server.getPort());
api.post();
}
@Test
public void decodingExceptionGetWrappedInDecode404Mode() throws Exception {
server.enqueue(new MockResponse().setResponseCode(404));
thrown.expect(DecodeException.class);
thrown.expectCause(isA(NoSuchElementException.class));;
TestInterface api = new TestInterfaceBuilder()
.decode404()
.decoder(new Decoder() {
@Override
public Object decode(Response response, Type type) throws IOException {
assertEquals(404, response.status());
throw new NoSuchElementException();
}
}).target("http://localhost:" + server.getPort());
api.post();
}
@Test
public void decodingDoesNotSwallow404ErrorsInDecode404Mode() throws Exception {
server.enqueue(new MockResponse().setResponseCode(404));
thrown.expect(IllegalArgumentException.class);
TestInterface api = new TestInterfaceBuilder()
.decode404()
.errorDecoder(new IllegalArgumentExceptionOn404())
.target("http://localhost:" + server.getPort());
api.queryMap(Collections.<String, Object>emptyMap());
}
@Test
public void okIfEncodeRootCauseHasNoMessage() throws Exception {
server.enqueue(new MockResponse().setBody("success!"));
thrown.expect(EncodeException.class);
TestInterface api = new TestInterfaceBuilder()
.encoder(new Encoder() {
@Override
public void encode(Object object, Type bodyType, RequestTemplate template) {
throw new RuntimeException();
}
}).target("http://localhost:" + server.getPort());
api.body(Arrays.asList("foo"));
}
@Test
public void equalsHashCodeAndToStringWork() {
Target<TestInterface> t1 =
new HardCodedTarget<TestInterface>(TestInterface.class, "http://localhost:8080");
Target<TestInterface> t2 =
new HardCodedTarget<TestInterface>(TestInterface.class, "http://localhost:8888");
Target<OtherTestInterface> t3 =
new HardCodedTarget<OtherTestInterface>(OtherTestInterface.class, "http://localhost:8080");
TestInterface i1 = Feign.builder().target(t1);
TestInterface i2 = Feign.builder().target(t1);
TestInterface i3 = Feign.builder().target(t2);
OtherTestInterface i4 = Feign.builder().target(t3);
assertThat(i1)
.isEqualTo(i2)
.isNotEqualTo(i3)
.isNotEqualTo(i4);
assertThat(i1.hashCode())
.isEqualTo(i2.hashCode())
.isNotEqualTo(i3.hashCode())
.isNotEqualTo(i4.hashCode());
assertThat(i1.toString())
.isEqualTo(i2.toString())
.isNotEqualTo(i3.toString())
.isNotEqualTo(i4.toString());
assertThat(t1)
.isNotEqualTo(i1);
assertThat(t1.hashCode())
.isEqualTo(i1.hashCode());
assertThat(t1.toString())
.isEqualTo(i1.toString());
}
@Test
public void decodeLogicSupportsByteArray() throws Exception {
byte[] expectedResponse = {12, 34, 56};
server.enqueue(new MockResponse().setBody(new Buffer().write(expectedResponse)));
OtherTestInterface api =
Feign.builder().target(OtherTestInterface.class, "http://localhost:" + server.getPort());
assertThat(api.binaryResponseBody())
.containsExactly(expectedResponse);
}
@Test
public void encodeLogicSupportsByteArray() throws Exception {
byte[] expectedRequest = {12, 34, 56};
server.enqueue(new MockResponse());
OtherTestInterface api =
Feign.builder().target(OtherTestInterface.class, "http://localhost:" + server.getPort());
api.binaryRequestBody(expectedRequest);
assertThat(server.takeRequest())
.hasBody(expectedRequest);
}
@Test
public void encodedQueryParam() throws Exception {
server.enqueue(new MockResponse());
TestInterface api = new TestInterfaceBuilder().target("http://localhost:" + server.getPort());
api.encodedQueryParam("5.2FSi+");
assertThat(server.takeRequest())
.hasPath("/?trim=5.2FSi%2B");
}
@Test
public void responseMapperIsAppliedBeforeDelegate() throws IOException {
ResponseMappingDecoder decoder =
new ResponseMappingDecoder(upperCaseResponseMapper(), new StringDecoder());
String output = (String) decoder.decode(responseWithText("response"), String.class);
assertThat(output).isEqualTo("RESPONSE");
}
private ResponseMapper upperCaseResponseMapper() {
return new ResponseMapper() {
@Override
public Response map(Response response, Type type) {
try {
return response
.toBuilder()
.body(Util.toString(response.body().asReader(UTF_8)).toUpperCase().getBytes())
.build();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
};
}
private Response responseWithText(String text) {
return Response.builder()
.body(text, Util.UTF_8)
.status(200)
.request(Request.create(HttpMethod.GET, "/api", Collections.emptyMap(), null, Util.UTF_8))
.headers(new HashMap<>())
.build();
}
@Test
public void mapAndDecodeExecutesMapFunction() throws Exception {
server.enqueue(new MockResponse().setBody("response!"));
TestInterface api = new Feign.Builder()
.mapAndDecode(upperCaseResponseMapper(), new StringDecoder())
.target(TestInterface.class, "http://localhost:" + server.getPort());
assertEquals(api.post(), "RESPONSE!");
}
@Test
public void beanQueryMapEncoderWithPrivateGetterIgnored() throws Exception {
TestInterface api = new TestInterfaceBuilder().queryMapEndcoder(new BeanQueryMapEncoder())
.target("http://localhost:" + server.getPort());
PropertyPojo.ChildPojoClass propertyPojo = new PropertyPojo.ChildPojoClass();
propertyPojo.setPrivateGetterProperty("privateGetterProperty");
propertyPojo.setName("Name");
propertyPojo.setNumber(1);
server.enqueue(new MockResponse());
api.queryMapPropertyPojo(propertyPojo);
assertThat(server.takeRequest())
.hasQueryParams(Arrays.asList("name=Name", "number=1"));
}
@Test
public void queryMap_with_child_pojo() throws Exception {
TestInterface api = new TestInterfaceBuilder().queryMapEndcoder(new FieldQueryMapEncoder())
.target("http://localhost:" + server.getPort());
ChildPojo childPojo = new ChildPojo();
childPojo.setChildPrivateProperty("first");
childPojo.setParentProtectedProperty("second");
childPojo.setParentPublicProperty("third");
server.enqueue(new MockResponse());
api.queryMapPropertyInheritence(childPojo);
assertThat(server.takeRequest())
.hasQueryParams(
"parentPublicProperty=third",
"parentProtectedProperty=second",
"childPrivateProperty=first");
}
@Test
public void beanQueryMapEncoderWithNullValueIgnored() throws Exception {
TestInterface api = new TestInterfaceBuilder().queryMapEndcoder(new BeanQueryMapEncoder())
.target("http://localhost:" + server.getPort());
PropertyPojo.ChildPojoClass propertyPojo = new PropertyPojo.ChildPojoClass();
propertyPojo.setName(null);
propertyPojo.setNumber(1);
server.enqueue(new MockResponse());
api.queryMapPropertyPojo(propertyPojo);
assertThat(server.takeRequest())
.hasQueryParams("number=1");
}
@Test
public void beanQueryMapEncoderWithEmptyParams() throws Exception {
TestInterface api = new TestInterfaceBuilder().queryMapEndcoder(new BeanQueryMapEncoder())
.target("http://localhost:" + server.getPort());
PropertyPojo.ChildPojoClass propertyPojo = new PropertyPojo.ChildPojoClass();
server.enqueue(new MockResponse());
api.queryMapPropertyPojo(propertyPojo);
assertThat(server.takeRequest())
.hasQueryParams("/");
}
@Test
public void sharedMethodCreatesNewFeignInstance() {
TestInterface initialApi = new TestInterfaceBuilder()
.target("http://localhost:" + server.getPort());
TestInterface configuredApi = initialApi.configure("sharedParam");
assertNotSame(initialApi, configuredApi);
}
@Test
public void sharedPathParameterIsIncluded() throws Exception {
TestInterface api = new TestInterfaceBuilder()
.target("http://localhost:" + server.getPort())
.configure("sharedValue");
server.enqueue(new MockResponse());
api.sharedPathParam("exclusiveValue");
assertThat(server.takeRequest())
.hasQueryParams("/sharedValue/exclusiveValue");
}
@Test
public void sharedPathParameterIsOverridden() throws Exception {
TestInterface api = new TestInterfaceBuilder()
.target("http://localhost:" + server.getPort())
.configure("sharedValue");
server.enqueue(new MockResponse());
api.sharedOverridablePathParam("differentSharedValue", "exclusiveValue");
assertThat(server.takeRequest())
.hasQueryParams("/differentSharedValue/exclusiveValue");
}
@Test
public void sharedHeaderParameterIsIncluded() throws Exception {
TestInterface api = new TestInterfaceBuilder()
.target("http://localhost:" + server.getPort())
.configure("sharedValue");
server.enqueue(new MockResponse());
api.sharedHeaderParam("exclusiveValue");
assertThat(server.takeRequest())
.hasHeaders(
entry("sharedheader", Collections.singletonList("sharedValue")),
entry("exclusiveheader", Collections.singletonList("exclusiveValue")));
}
@Test
public void sharedBodyParameterIsIncluded() throws Exception {
TestInterface api = new TestInterfaceBuilder()
.target("http://localhost:" + server.getPort())
.configure("sharedValue");
server.enqueue(new MockResponse());
api.sharedBodyParam("exclusiveValue");
assertThat(server.takeRequest())
.hasBody("{\"sharedProperty\": \"sharedValue\", \"requestProperty\": \"exclusiveValue\"}");
}
interface TestInterface {
@RequestLine("POST /")
Response response();
@RequestLine("POST /")
String post() throws TestInterfaceException;
@RequestLine("POST /")
@Body("%7B\"customer_name\": \"{customer_name}\", \"user_name\": \"{user_name}\", \"password\": \"{password}\"%7D")
void login(
@Param("customer_name") String customer,
@Param("user_name") String user,
@Param("password") String password);
@RequestLine("POST /")
void body(List<String> contents);
@RequestLine("POST /")
String body(String content);
@RequestLine("POST /")
String noContent();
@RequestLine("POST /")
@Headers("Content-Encoding: gzip")
void gzipBody(List<String> contents);
@RequestLine("POST /")
@Headers("Content-Encoding: deflate")
void deflateBody(List<String> contents);
@RequestLine("POST /")
void form(