-
Notifications
You must be signed in to change notification settings - Fork 3.8k
/
RouteGuideServerTest.java
277 lines (242 loc) · 10.8 KB
/
RouteGuideServerTest.java
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
/*
* Copyright 2016 The gRPC 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 io.grpc.examples.routeguide;
import static junit.framework.TestCase.fail;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.timeout;
import static org.mockito.Mockito.verify;
import io.grpc.ManagedChannel;
import io.grpc.inprocess.InProcessChannelBuilder;
import io.grpc.inprocess.InProcessServerBuilder;
import io.grpc.stub.StreamObserver;
import io.grpc.testing.GrpcCleanupRule;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.mockito.ArgumentCaptor;
/**
* Unit tests for {@link RouteGuideServer}.
* For demonstrating how to write gRPC unit test only.
* Not intended to provide a high code coverage or to test every major usecase.
*
* directExecutor() makes it easier to have deterministic tests.
*
* <p>For basic unit test examples see {@link io.grpc.examples.helloworld.HelloWorldClientTest} and
* {@link io.grpc.examples.helloworld.HelloWorldServerTest}.
*/
@RunWith(JUnit4.class)
public class RouteGuideServerTest {
/**
* This rule manages automatic graceful shutdown for the registered channel at the end of test.
*/
@Rule
public final GrpcCleanupRule grpcCleanup = new GrpcCleanupRule();
private RouteGuideServer server;
private ManagedChannel inProcessChannel;
private Collection<Feature> features;
@Before
public void setUp() throws Exception {
// Generate a unique in-process server name.
String serverName = InProcessServerBuilder.generateName();
features = new ArrayList<>();
// Use directExecutor for both InProcessServerBuilder and InProcessChannelBuilder can reduce the
// usage timeouts and latches in test. But we still add timeout and latches where they would be
// needed if no directExecutor were used, just for demo purpose.
server = new RouteGuideServer(
InProcessServerBuilder.forName(serverName).directExecutor(), 0, features);
server.start();
// Create a client channel and register for automatic graceful shutdown.
inProcessChannel = grpcCleanup.register(
InProcessChannelBuilder.forName(serverName).directExecutor().build());
}
@After
public void tearDown() throws Exception {
server.stop();
}
@Test
public void getFeature() {
Point point = Point.newBuilder().setLongitude(1).setLatitude(1).build();
Feature unnamedFeature = Feature.newBuilder()
.setName("").setLocation(point).build();
RouteGuideGrpc.RouteGuideBlockingStub stub = RouteGuideGrpc.newBlockingStub(inProcessChannel);
// feature not found in the server
Feature feature = stub.getFeature(point);
assertEquals(unnamedFeature, feature);
// feature found in the server
Feature namedFeature = Feature.newBuilder()
.setName("name").setLocation(point).build();
features.add(namedFeature);
feature = stub.getFeature(point);
assertEquals(namedFeature, feature);
}
@Test
public void listFeatures() throws Exception {
// setup
Rectangle rect = Rectangle.newBuilder()
.setLo(Point.newBuilder().setLongitude(0).setLatitude(0).build())
.setHi(Point.newBuilder().setLongitude(10).setLatitude(10).build())
.build();
Feature f1 = Feature.newBuilder()
.setLocation(Point.newBuilder().setLongitude(-1).setLatitude(-1).build())
.setName("f1")
.build(); // not inside rect
Feature f2 = Feature.newBuilder()
.setLocation(Point.newBuilder().setLongitude(2).setLatitude(2).build())
.setName("f2")
.build();
Feature f3 = Feature.newBuilder()
.setLocation(Point.newBuilder().setLongitude(3).setLatitude(3).build())
.setName("f3")
.build();
Feature f4 = Feature.newBuilder()
.setLocation(Point.newBuilder().setLongitude(4).setLatitude(4).build())
.build(); // unamed
features.add(f1);
features.add(f2);
features.add(f3);
features.add(f4);
final List<Feature> result = new ArrayList<Feature>();
final CountDownLatch latch = new CountDownLatch(1);
StreamObserver<Feature> responseObserver =
new StreamObserver<Feature>() {
@Override
public void onNext(Feature value) {
result.add(value);
}
@Override
public void onError(Throwable t) {
fail();
}
@Override
public void onCompleted() {
latch.countDown();
}
};
RouteGuideGrpc.RouteGuideStub stub = RouteGuideGrpc.newStub(inProcessChannel);
// run
stub.listFeatures(rect, responseObserver);
assertTrue(latch.await(1, TimeUnit.SECONDS));
// verify
assertEquals(Arrays.asList(f2, f3), result);
}
@Test
public void recordRoute() {
Point p1 = Point.newBuilder().setLongitude(1000).setLatitude(1000).build();
Point p2 = Point.newBuilder().setLongitude(2000).setLatitude(2000).build();
Point p3 = Point.newBuilder().setLongitude(3000).setLatitude(3000).build();
Point p4 = Point.newBuilder().setLongitude(4000).setLatitude(4000).build();
Feature f1 = Feature.newBuilder().setLocation(p1).build(); // unamed
Feature f2 = Feature.newBuilder().setLocation(p2).setName("f2").build();
Feature f3 = Feature.newBuilder().setLocation(p3).setName("f3").build();
Feature f4 = Feature.newBuilder().setLocation(p4).build(); // unamed
features.add(f1);
features.add(f2);
features.add(f3);
features.add(f4);
@SuppressWarnings("unchecked")
StreamObserver<RouteSummary> responseObserver =
(StreamObserver<RouteSummary>) mock(StreamObserver.class);
RouteGuideGrpc.RouteGuideStub stub = RouteGuideGrpc.newStub(inProcessChannel);
ArgumentCaptor<RouteSummary> routeSummaryCaptor = ArgumentCaptor.forClass(RouteSummary.class);
StreamObserver<Point> requestObserver = stub.recordRoute(responseObserver);
requestObserver.onNext(p1);
requestObserver.onNext(p2);
requestObserver.onNext(p3);
requestObserver.onNext(p4);
verify(responseObserver, never()).onNext(any(RouteSummary.class));
requestObserver.onCompleted();
// allow some ms to let client receive the response. Similar usage later on.
verify(responseObserver, timeout(100)).onNext(routeSummaryCaptor.capture());
RouteSummary summary = routeSummaryCaptor.getValue();
assertEquals(45, summary.getDistance()); // 45 is the hard coded distance from p1 to p4.
assertEquals(2, summary.getFeatureCount());
verify(responseObserver, timeout(100)).onCompleted();
verify(responseObserver, never()).onError(any(Throwable.class));
}
@Test
public void routeChat() {
Point p1 = Point.newBuilder().setLongitude(1).setLatitude(1).build();
Point p2 = Point.newBuilder().setLongitude(2).setLatitude(2).build();
RouteNote n1 = RouteNote.newBuilder().setLocation(p1).setMessage("m1").build();
RouteNote n2 = RouteNote.newBuilder().setLocation(p2).setMessage("m2").build();
RouteNote n3 = RouteNote.newBuilder().setLocation(p1).setMessage("m3").build();
RouteNote n4 = RouteNote.newBuilder().setLocation(p2).setMessage("m4").build();
RouteNote n5 = RouteNote.newBuilder().setLocation(p1).setMessage("m5").build();
RouteNote n6 = RouteNote.newBuilder().setLocation(p1).setMessage("m6").build();
int timesOnNext = 0;
@SuppressWarnings("unchecked")
StreamObserver<RouteNote> responseObserver =
(StreamObserver<RouteNote>) mock(StreamObserver.class);
RouteGuideGrpc.RouteGuideStub stub = RouteGuideGrpc.newStub(inProcessChannel);
StreamObserver<RouteNote> requestObserver = stub.routeChat(responseObserver);
verify(responseObserver, never()).onNext(any(RouteNote.class));
requestObserver.onNext(n1);
verify(responseObserver, never()).onNext(any(RouteNote.class));
requestObserver.onNext(n2);
verify(responseObserver, never()).onNext(any(RouteNote.class));
requestObserver.onNext(n3);
ArgumentCaptor<RouteNote> routeNoteCaptor = ArgumentCaptor.forClass(RouteNote.class);
verify(responseObserver, timeout(100).times(++timesOnNext)).onNext(routeNoteCaptor.capture());
RouteNote result = routeNoteCaptor.getValue();
assertEquals(p1, result.getLocation());
assertEquals("m1", result.getMessage());
requestObserver.onNext(n4);
routeNoteCaptor = ArgumentCaptor.forClass(RouteNote.class);
verify(responseObserver, timeout(100).times(++timesOnNext)).onNext(routeNoteCaptor.capture());
result = routeNoteCaptor.getAllValues().get(timesOnNext - 1);
assertEquals(p2, result.getLocation());
assertEquals("m2", result.getMessage());
requestObserver.onNext(n5);
routeNoteCaptor = ArgumentCaptor.forClass(RouteNote.class);
timesOnNext += 2;
verify(responseObserver, timeout(100).times(timesOnNext)).onNext(routeNoteCaptor.capture());
result = routeNoteCaptor.getAllValues().get(timesOnNext - 2);
assertEquals(p1, result.getLocation());
assertEquals("m1", result.getMessage());
result = routeNoteCaptor.getAllValues().get(timesOnNext - 1);
assertEquals(p1, result.getLocation());
assertEquals("m3", result.getMessage());
requestObserver.onNext(n6);
routeNoteCaptor = ArgumentCaptor.forClass(RouteNote.class);
timesOnNext += 3;
verify(responseObserver, timeout(100).times(timesOnNext)).onNext(routeNoteCaptor.capture());
result = routeNoteCaptor.getAllValues().get(timesOnNext - 3);
assertEquals(p1, result.getLocation());
assertEquals("m1", result.getMessage());
result = routeNoteCaptor.getAllValues().get(timesOnNext - 2);
assertEquals(p1, result.getLocation());
assertEquals("m3", result.getMessage());
result = routeNoteCaptor.getAllValues().get(timesOnNext - 1);
assertEquals(p1, result.getLocation());
assertEquals("m5", result.getMessage());
requestObserver.onCompleted();
verify(responseObserver, timeout(100)).onCompleted();
verify(responseObserver, never()).onError(any(Throwable.class));
}
}