forked from OpenFeign/feign
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathRetryerTest.java
More file actions
99 lines (85 loc) · 3.41 KB
/
Copy pathRetryerTest.java
File metadata and controls
99 lines (85 loc) · 3.41 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
/*
* 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.assertj.core.api.Assertions.fail;
import static org.junit.jupiter.api.Assertions.assertThrows;
import feign.Retryer.Default;
import java.util.Collections;
import org.junit.jupiter.api.Test;
@SuppressWarnings("deprecation")
class RetryerTest {
private static final Request REQUEST =
Request.create(Request.HttpMethod.GET, "/", Collections.emptyMap(), null, Util.UTF_8);
@Test
void only5TriesAllowedAndExponentialBackoff() {
final Long nonRetryable = null;
RetryableException e = new RetryableException(-1, null, null, nonRetryable, REQUEST);
Default retryer = new Retryer.Default();
assertThat(retryer.attempt).isEqualTo(1);
assertThat(retryer.sleptForMillis).isEqualTo(0);
retryer.continueOrPropagate(e);
assertThat(retryer.attempt).isEqualTo(2);
assertThat(retryer.sleptForMillis).isEqualTo(150);
retryer.continueOrPropagate(e);
assertThat(retryer.attempt).isEqualTo(3);
assertThat(retryer.sleptForMillis).isEqualTo(375);
retryer.continueOrPropagate(e);
assertThat(retryer.attempt).isEqualTo(4);
assertThat(retryer.sleptForMillis).isEqualTo(712);
retryer.continueOrPropagate(e);
assertThat(retryer.attempt).isEqualTo(5);
assertThat(retryer.sleptForMillis).isEqualTo(1218);
assertThrows(RetryableException.class, () -> retryer.continueOrPropagate(e));
}
@Test
void considersRetryAfterButNotMoreThanMaxPeriod() {
Default retryer =
new Retryer.Default() {
@Override
protected long currentTimeMillis() {
return 0;
}
};
retryer.continueOrPropagate(new RetryableException(-1, null, null, 5000L, REQUEST));
assertThat(retryer.attempt).isEqualTo(2);
assertThat(retryer.sleptForMillis).isEqualTo(1000);
}
@Test
void neverRetryAlwaysPropagates() {
assertThrows(
RetryableException.class,
() ->
Retryer.NEVER_RETRY.continueOrPropagate(
new RetryableException(-1, null, null, 5000L, REQUEST)));
}
@Test
void defaultRetryerFailsOnInterruptedException() {
Default retryer = new Retryer.Default();
Thread.currentThread().interrupt();
RetryableException expected =
new RetryableException(-1, null, null, System.currentTimeMillis() + 5000, REQUEST);
try {
retryer.continueOrPropagate(expected);
Thread.interrupted(); // reset interrupted flag in case it wasn't
fail("Retryer continued despite interruption");
} catch (RetryableException e) {
assertThat(Thread.interrupted()).as("Interrupted status not reset").isTrue();
assertThat(retryer.attempt).as("Retry attempt not registered as expected").isEqualTo(2);
assertThat(e).as("Unexpected exception found").isEqualTo(expected);
}
}
}