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
|
/*
* Copyright 2018, OpenCensus 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.opencensus.metrics;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.testing.EqualsTester;
import io.opencensus.common.Function;
import io.opencensus.common.Functions;
import io.opencensus.metrics.Distribution.Bucket;
import io.opencensus.metrics.Summary.Snapshot;
import io.opencensus.metrics.Summary.Snapshot.ValueAtPercentile;
import io.opencensus.metrics.Value.ValueDistribution;
import io.opencensus.metrics.Value.ValueDouble;
import io.opencensus.metrics.Value.ValueLong;
import io.opencensus.metrics.Value.ValueSummary;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Unit tests for {@link Value}. */
@RunWith(JUnit4.class)
public class ValueTest {
private static final double TOLERANCE = 1e-6;
private static final Distribution DISTRIBUTION =
Distribution.create(
10,
10,
1,
Arrays.asList(-5.0, 0.0, 5.0),
Arrays.asList(Bucket.create(3), Bucket.create(1), Bucket.create(2), Bucket.create(4)));
private static final Summary SUMMARY =
Summary.create(
10L,
10.0,
Snapshot.create(
10L, 87.07, Collections.singletonList(ValueAtPercentile.create(0.98, 10.2))));
@Test
public void createAndGet_ValueDouble() {
Value value = Value.doubleValue(-34.56);
assertThat(value).isInstanceOf(ValueDouble.class);
assertThat(((ValueDouble) value).getValue()).isWithin(TOLERANCE).of(-34.56);
}
@Test
public void createAndGet_ValueLong() {
Value value = Value.longValue(123456789);
assertThat(value).isInstanceOf(ValueLong.class);
assertThat(((ValueLong) value).getValue()).isEqualTo(123456789);
}
@Test
public void createAndGet_ValueDistribution() {
Value value = Value.distributionValue(DISTRIBUTION);
assertThat(value).isInstanceOf(ValueDistribution.class);
assertThat(((ValueDistribution) value).getValue()).isEqualTo(DISTRIBUTION);
}
@Test
public void createAndGet_ValueSummary() {
Value value = Value.summaryValue(SUMMARY);
assertThat(value).isInstanceOf(ValueSummary.class);
assertThat(((ValueSummary) value).getValue()).isEqualTo(SUMMARY);
}
@Test
public void testEquals() {
new EqualsTester()
.addEqualityGroup(Value.doubleValue(1.0), Value.doubleValue(1.0))
.addEqualityGroup(Value.doubleValue(2.0))
.addEqualityGroup(Value.longValue(1L))
.addEqualityGroup(Value.longValue(2L))
.addEqualityGroup(
Value.distributionValue(
Distribution.create(
7,
10,
23.456,
Arrays.asList(-5.0, 0.0, 5.0),
Arrays.asList(
Bucket.create(3), Bucket.create(1), Bucket.create(2), Bucket.create(4)))))
.testEquals();
}
@Test
public void testMatch() {
List<Value> values =
Arrays.asList(
ValueDouble.create(1.0),
ValueLong.create(-1),
ValueDistribution.create(DISTRIBUTION),
ValueSummary.create(SUMMARY));
List<Number> expected =
Arrays.<Number>asList(1.0, -1L, 10.0, 10L, 1.0, -5.0, 0.0, 5.0, 3L, 1L, 2L, 4L);
final List<Number> actual = new ArrayList<Number>();
for (Value value : values) {
value.match(
new Function<Double, Object>() {
@Override
public Object apply(Double arg) {
actual.add(arg);
return null;
}
},
new Function<Long, Object>() {
@Override
public Object apply(Long arg) {
actual.add(arg);
return null;
}
},
new Function<Distribution, Object>() {
@Override
public Object apply(Distribution arg) {
actual.add(arg.getSum());
actual.add(arg.getCount());
actual.add(arg.getSumOfSquaredDeviations());
actual.addAll(arg.getBucketBoundaries());
for (Bucket bucket : arg.getBuckets()) {
actual.add(bucket.getCount());
}
return null;
}
},
new Function<Summary, Object>() {
@Override
public Object apply(Summary arg) {
return null;
}
},
Functions.throwAssertionError());
}
assertThat(actual).containsExactlyElementsIn(expected).inOrder();
}
}
|
