forked from OpenFeign/feign
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathFeignTest.java
More file actions
652 lines (540 loc) · 21.5 KB
/
FeignTest.java
File metadata and controls
652 lines (540 loc) · 21.5 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
/*
* Copyright 2013 Netflix, Inc.
*
* 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.common.base.Joiner;
import com.google.common.io.ByteStreams;
import com.google.common.io.CharStreams;
import com.google.mockwebserver.MockResponse;
import com.google.mockwebserver.MockWebServer;
import com.google.mockwebserver.RecordedRequest;
import com.google.mockwebserver.SocketPolicy;
import dagger.Lazy;
import dagger.Module;
import dagger.Provides;
import feign.codec.Decoder;
import feign.codec.Encoder;
import feign.codec.ErrorDecoder;
import feign.codec.StringDecoder;
import org.testng.annotations.Test;
import javax.inject.Named;
import javax.inject.Singleton;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLSocketFactory;
import java.io.IOException;
import java.io.Reader;
import java.lang.reflect.Type;
import java.net.URI;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Executor;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.atomic.AtomicBoolean;
import static dagger.Provides.Type.SET;
import static feign.Util.UTF_8;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertNull;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;
@Test
// unbound wildcards are not currently injectable in dagger.
@SuppressWarnings("rawtypes")
public class FeignTest {
@Test public void closeShutsdownExecutorService() throws IOException, InterruptedException {
final ExecutorService service = Executors.newCachedThreadPool();
new Feign(new Lazy<Executor>() {
@Override public Executor get() {
return service;
}
}) {
@Override public <T> T newInstance(Target<T> target) {
return null;
}
}.close();
assertTrue(service.isShutdown());
}
interface TestInterface {
@RequestLine("POST /") String post();
@RequestLine("POST /")
@Body("%7B\"customer_name\": \"{customer_name}\", \"user_name\": \"{user_name}\", \"password\": \"{password}\"%7D")
void login(
@Named("customer_name") String customer, @Named("user_name") String user, @Named("password") String password);
@RequestLine("POST /") void body(List<String> contents);
@RequestLine("POST /") @Headers("Content-Encoding: gzip") void gzipBody(List<String> contents);
@RequestLine("POST /") void form(
@Named("customer_name") String customer, @Named("user_name") String user, @Named("password") String password);
@RequestLine("GET /{1}/{2}") Response uriParam(@Named("1") String one, URI endpoint, @Named("2") String two);
@RequestLine("GET /?1={1}&2={2}") Response queryParams(@Named("1") String one, @Named("2") Iterable<String> twos);
@RequestLine("POST /") Observable<Void> observableVoid();
@RequestLine("POST /") Observable<String> observableString();
@RequestLine("POST /") Observable<Response> observableResponse();
@dagger.Module(library = true)
static class Module {
@Provides(type = SET) Encoder defaultEncoder() {
return new Encoder.Text<Object>() {
@Override public String encode(Object object) {
return object.toString();
}
};
}
@Provides(type = SET) Encoder formEncoder() {
return new Encoder.Text<Map<String, ?>>() {
@Override public String encode(Map<String, ?> object) {
return Joiner.on(',').withKeyValueSeparator("=").join(object);
}
};
}
}
}
@Test
public void iterableQueryParams() throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("foo"));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(), new TestInterface.Module());
api.queryParams("user", Arrays.asList("apple", "pear"));
assertEquals(server.takeRequest().getRequestLine(), "GET /?1=user&2=apple&2=pear HTTP/1.1");
} finally {
server.shutdown();
}
}
interface OtherTestInterface {
@RequestLine("POST /") String post();
}
@Test
public void observableVoid() throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("foo"));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(),
new TestInterface.Module(), new RunSynchronous());
final AtomicBoolean success = new AtomicBoolean();
Observer<Void> observer = new Observer<Void>() {
@Override public void onNext(Void element) {
fail("on next isn't valid for void");
}
@Override public void onSuccess() {
success.set(true);
}
@Override public void onFailure(Throwable cause) {
fail(cause.getMessage());
}
};
api.observableVoid().subscribe(observer);
assertTrue(success.get());
assertEquals(server.getRequestCount(), 1);
} finally {
server.shutdown();
}
}
@Test
public void observableResponse() throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("foo"));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(),
new TestInterface.Module(), new RunSynchronous());
final AtomicBoolean success = new AtomicBoolean();
Observer<Response> observer = new Observer<Response>() {
@Override public void onNext(Response element) {
assertEquals(element.status(), 200);
}
@Override public void onSuccess() {
success.set(true);
}
@Override public void onFailure(Throwable cause) {
fail(cause.getMessage());
}
};
api.observableResponse().subscribe(observer);
assertTrue(success.get());
assertEquals(server.getRequestCount(), 1);
} finally {
server.shutdown();
}
}
@Module(library = true, overrides = true)
static class RunSynchronous {
@Provides @Singleton @Named("http") Executor httpExecutor() {
return new Executor() {
@Override public void execute(Runnable command) {
command.run();
}
};
}
}
@Test
public void incrementString() throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("foo"));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(),
new TestInterface.Module(), new RunSynchronous());
final AtomicBoolean success = new AtomicBoolean();
Observer<String> observer = new Observer<String>() {
@Override public void onNext(String element) {
assertEquals(element, "foo");
}
@Override public void onSuccess() {
success.set(true);
}
@Override public void onFailure(Throwable cause) {
fail(cause.getMessage());
}
};
api.observableString().subscribe(observer);
assertTrue(success.get());
assertEquals(server.getRequestCount(), 1);
} finally {
server.shutdown();
}
}
@Test
public void multipleObservers() throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("foo"));
server.enqueue(new MockResponse().setBody("foo"));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(), new TestInterface.Module());
final CountDownLatch latch = new CountDownLatch(2);
Observer<String> observer = new Observer<String>() {
@Override public void onNext(String element) {
assertEquals(element, "foo");
}
@Override public void onSuccess() {
latch.countDown();
}
@Override public void onFailure(Throwable cause) {
fail(cause.getMessage());
}
};
Observable<String> observable = api.observableString();
observable.subscribe(observer);
observable.subscribe(observer);
latch.await();
assertEquals(server.getRequestCount(), 2);
} finally {
server.shutdown();
}
}
@Test
public void postTemplateParamsResolve() throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("foo"));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(), new TestInterface.Module());
api.login("netflix", "denominator", "password");
assertEquals(new String(server.takeRequest().getBody()),
"{\"customer_name\": \"netflix\", \"user_name\": \"denominator\", \"password\": \"password\"}");
} finally {
server.shutdown();
}
}
@Test
public void postFormParams() throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("foo"));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(), new TestInterface.Module());
api.form("netflix", "denominator", "password");
assertEquals(new String(server.takeRequest().getBody()),
"customer_name=netflix,user_name=denominator,password=password");
} finally {
server.shutdown();
}
}
@Test
public void postBodyParam() throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("foo"));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(), new TestInterface.Module());
api.body(Arrays.asList("netflix", "denominator", "password"));
RecordedRequest request = server.takeRequest();
assertEquals(request.getHeader("Content-Length"), "32");
assertEquals(new String(request.getBody()), "[netflix, denominator, password]");
} finally {
server.shutdown();
}
}
@Test
public void postGZIPEncodedBodyParam() throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("foo"));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(), new TestInterface.Module());
api.gzipBody(Arrays.asList("netflix", "denominator", "password"));
RecordedRequest request = server.takeRequest();
assertNull(request.getHeader("Content-Length"));
byte[] compressedBody = request.getBody();
String uncompressedBody = CharStreams.toString(CharStreams.newReaderSupplier(
GZIPStreams.newInputStreamSupplier(ByteStreams.newInputStreamSupplier(compressedBody)), UTF_8));
assertEquals(uncompressedBody, "[netflix, denominator, password]");
} finally {
server.shutdown();
}
}
@Module(library = true)
static class ForwardedForInterceptor implements RequestInterceptor {
@Provides(type = SET) RequestInterceptor provideThis() {
return this;
}
@Override public void apply(RequestTemplate template) {
template.header("X-Forwarded-For", "origin.host.com");
}
}
@Test
public void singleInterceptor() throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("foo"));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(),
new TestInterface.Module(), new ForwardedForInterceptor());
api.post();
assertEquals(server.takeRequest().getHeader("X-Forwarded-For"), "origin.host.com");
} finally {
server.shutdown();
}
}
@Module(library = true)
static class UserAgentInterceptor implements RequestInterceptor {
@Provides(type = SET) RequestInterceptor provideThis() {
return this;
}
@Override public void apply(RequestTemplate template) {
template.header("User-Agent", "Feign");
}
}
@Test
public void multipleInterceptor() throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("foo"));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(),
new TestInterface.Module(), new ForwardedForInterceptor(), new UserAgentInterceptor());
api.post();
RecordedRequest request = server.takeRequest();
assertEquals(request.getHeader("X-Forwarded-For"), "origin.host.com");
assertEquals(request.getHeader("User-Agent"), "Feign");
} finally {
server.shutdown();
}
}
@Test public void toKeyMethodFormatsAsExpected() throws Exception {
assertEquals(Feign.configKey(TestInterface.class.getDeclaredMethod("post")), "TestInterface#post()");
assertEquals(Feign.configKey(TestInterface.class.getDeclaredMethod("uriParam", String.class, URI.class,
String.class)), "TestInterface#uriParam(String,URI,String)");
}
@dagger.Module(overrides = true, library = true, includes = TestInterface.Module.class)
static class IllegalArgumentExceptionOn404 {
@Provides @Singleton ErrorDecoder errorDecoder() {
return new ErrorDecoder.Default() {
@Override
public Exception decode(String methodKey, Response response) {
if (response.status() == 404)
return new IllegalArgumentException("zone not found");
return super.decode(methodKey, response);
}
};
}
}
@Test(expectedExceptions = IllegalArgumentException.class, expectedExceptionsMessageRegExp = "zone not found")
public void canOverrideErrorDecoder() throws IOException, InterruptedException {
final MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setResponseCode(404).setBody("foo"));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(),
new IllegalArgumentExceptionOn404());
api.post();
} finally {
server.shutdown();
}
}
@Test public void retriesLostConnectionBeforeRead() throws IOException, InterruptedException {
MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setSocketPolicy(SocketPolicy.DISCONNECT_AT_START));
server.enqueue(new MockResponse().setBody("success!".getBytes()));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(),
new TestInterface.Module());
api.post();
assertEquals(server.getRequestCount(), 2);
} finally {
server.shutdown();
}
}
@dagger.Module(overrides = true, library = true, includes = TestInterface.Module.class)
static class DecodeFail {
@Provides(type = SET) Decoder decoder() {
return new Decoder.TextStream<String>() {
@Override
public String decode(Reader reader, Type type) throws IOException {
return "fail";
}
};
}
}
public void overrideTypeSpecificDecoder() throws IOException, InterruptedException {
MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("success!".getBytes()));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(),
new DecodeFail());
assertEquals(api.post(), "fail");
} finally {
server.shutdown();
assertEquals(server.getRequestCount(), 1);
}
}
@dagger.Module(overrides = true, library = true, includes = TestInterface.Module.class)
static class RetryableExceptionOnRetry {
@Provides(type = SET) Decoder decoder() {
return new StringDecoder() {
@Override
public String decode(Reader reader, Type type) throws RetryableException, IOException {
String string = super.decode(reader, type);
if ("retry!".equals(string))
throw new RetryableException(string, null);
return string;
}
};
}
}
/**
* when you must parse a 2xx status to determine if the operation succeeded or not.
*/
public void retryableExceptionInDecoder() throws IOException, InterruptedException {
MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("retry!".getBytes()));
server.enqueue(new MockResponse().setBody("success!".getBytes()));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(),
new RetryableExceptionOnRetry());
assertEquals(api.post(), "success!");
} finally {
server.shutdown();
assertEquals(server.getRequestCount(), 2);
}
}
@dagger.Module(overrides = true, library = true, includes = TestInterface.Module.class)
static class IOEOnDecode {
@Provides(type = SET) Decoder decoder() {
return new Decoder.TextStream<String>() {
@Override
public String decode(Reader reader, Type type) throws IOException {
throw new IOException("error reading response");
}
};
}
}
@Test(expectedExceptions = FeignException.class, expectedExceptionsMessageRegExp = "error reading response POST http://.*")
public void doesntRetryAfterResponseIsSent() throws IOException, InterruptedException {
MockWebServer server = new MockWebServer();
server.enqueue(new MockResponse().setBody("success!".getBytes()));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "http://localhost:" + server.getPort(),
new IOEOnDecode());
api.post();
} finally {
server.shutdown();
assertEquals(server.getRequestCount(), 1);
}
}
@Module(injects = Client.Default.class, overrides = true, addsTo = Feign.Defaults.class)
static class TrustSSLSockets {
@Provides SSLSocketFactory trustingSSLSocketFactory() {
return TrustingSSLSocketFactory.get();
}
}
@Test public void canOverrideSSLSocketFactory() throws IOException, InterruptedException {
MockWebServer server = new MockWebServer();
server.useHttps(TrustingSSLSocketFactory.get("localhost"), false);
server.enqueue(new MockResponse().setBody("success!".getBytes()));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "https://localhost:" + server.getPort(),
new TestInterface.Module(), new TrustSSLSockets());
api.post();
} finally {
server.shutdown();
}
}
@Module(injects = Client.Default.class, overrides = true, addsTo = Feign.Defaults.class)
static class DisableHostnameVerification {
@Provides HostnameVerifier acceptAllHostnameVerifier() {
return new AcceptAllHostnameVerifier();
}
}
@Test public void canOverrideHostnameVerifier() throws IOException, InterruptedException {
MockWebServer server = new MockWebServer();
server.useHttps(TrustingSSLSocketFactory.get("bad.example.com"), false);
server.enqueue(new MockResponse().setBody("success!".getBytes()));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "https://localhost:" + server.getPort(),
new TestInterface.Module(), new TrustSSLSockets(), new DisableHostnameVerification());
api.post();
} finally {
server.shutdown();
}
}
@Test public void retriesFailedHandshake() throws IOException, InterruptedException {
MockWebServer server = new MockWebServer();
server.useHttps(TrustingSSLSocketFactory.get("localhost"), false);
server.enqueue(new MockResponse().setSocketPolicy(SocketPolicy.FAIL_HANDSHAKE));
server.enqueue(new MockResponse().setBody("success!".getBytes()));
server.play();
try {
TestInterface api = Feign.create(TestInterface.class, "https://localhost:" + server.getPort(),
new TestInterface.Module(), new TrustSSLSockets());
api.post();
assertEquals(server.getRequestCount(), 2);
} finally {
server.shutdown();
}
}
@Test public void equalsAndHashCodeWork() {
TestInterface i1 = Feign.create(TestInterface.class, "http://localhost:8080", new TestInterface.Module());
TestInterface i2 = Feign.create(TestInterface.class, "http://localhost:8080", new TestInterface.Module());
TestInterface i3 = Feign.create(TestInterface.class, "http://localhost:8888", new TestInterface.Module());
OtherTestInterface i4 = Feign.create(OtherTestInterface.class, "http://localhost:8080");
assertTrue(i1.equals(i1));
assertTrue(i1.equals(i2));
assertFalse(i1.equals(i3));
assertFalse(i1.equals(i4));
assertEquals(i1.hashCode(), i1.hashCode());
assertEquals(i1.hashCode(), i2.hashCode());
}
}