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
|
/*
* Copyright 2017, 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.implcore.tags;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import com.google.common.testing.EqualsTester;
import io.opencensus.implcore.internal.CurrentState;
import io.opencensus.implcore.internal.CurrentState.State;
import io.opencensus.tags.Tag;
import io.opencensus.tags.TagContext;
import io.opencensus.tags.TagContextBuilder;
import io.opencensus.tags.TagKey;
import io.opencensus.tags.TagValue;
import io.opencensus.tags.Tagger;
import java.util.Arrays;
import java.util.Iterator;
import java.util.NoSuchElementException;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Tests for {@link TagContextImpl} and {@link TagContextBuilderImpl}.
*
* <p>Tests for {@link TagContextBuilderImpl#buildScoped()} are in {@link ScopedTagContextsTest}.
*/
@RunWith(JUnit4.class)
public class TagContextImplTest {
private final Tagger tagger = new TaggerImpl(new CurrentState(State.ENABLED));
private static final TagKey K1 = TagKey.create("k1");
private static final TagKey K2 = TagKey.create("k2");
private static final TagValue V1 = TagValue.create("v1");
private static final TagValue V2 = TagValue.create("v2");
@Rule public final ExpectedException thrown = ExpectedException.none();
@Test
public void getTags_empty() {
TagContextImpl tags = new TagContextImpl(ImmutableMap.<TagKey, TagValue>of());
assertThat(tags.getTags()).isEmpty();
}
@Test
public void getTags_nonEmpty() {
TagContextImpl tags = new TagContextImpl(ImmutableMap.of(K1, V1, K2, V2));
assertThat(tags.getTags()).containsExactly(K1, V1, K2, V2);
}
@Test
public void put_newKey() {
TagContext tags = new TagContextImpl(ImmutableMap.of(K1, V1));
assertThat(((TagContextImpl) tagger.toBuilder(tags).put(K2, V2).build()).getTags())
.containsExactly(K1, V1, K2, V2);
}
@Test
public void put_existingKey() {
TagContext tags = new TagContextImpl(ImmutableMap.of(K1, V1));
assertThat(((TagContextImpl) tagger.toBuilder(tags).put(K1, V2).build()).getTags())
.containsExactly(K1, V2);
}
@Test
public void put_nullKey() {
TagContext tags = new TagContextImpl(ImmutableMap.of(K1, V1));
TagContextBuilder builder = tagger.toBuilder(tags);
thrown.expect(NullPointerException.class);
thrown.expectMessage("key");
builder.put(null, V2);
}
@Test
public void put_nullValue() {
TagContext tags = new TagContextImpl(ImmutableMap.of(K1, V1));
TagContextBuilder builder = tagger.toBuilder(tags);
thrown.expect(NullPointerException.class);
thrown.expectMessage("value");
builder.put(K2, null);
}
@Test
public void remove_existingKey() {
TagContext tags = new TagContextImpl(ImmutableMap.of(K1, V1, K2, V2));
assertThat(((TagContextImpl) tagger.toBuilder(tags).remove(K1).build()).getTags())
.containsExactly(K2, V2);
}
@Test
public void remove_differentKey() {
TagContext tags = new TagContextImpl(ImmutableMap.of(K1, V1));
assertThat(((TagContextImpl) tagger.toBuilder(tags).remove(K2).build()).getTags())
.containsExactly(K1, V1);
}
@Test
public void remove_nullKey() {
TagContext tags = new TagContextImpl(ImmutableMap.of(K1, V1));
TagContextBuilder builder = tagger.toBuilder(tags);
thrown.expect(NullPointerException.class);
thrown.expectMessage("key");
builder.remove(null);
}
@Test
public void testIterator() {
TagContextImpl tags = new TagContextImpl(ImmutableMap.of(K1, V1, K2, V2));
Iterator<Tag> i = tags.getIterator();
assertTrue(i.hasNext());
Tag tag1 = i.next();
assertTrue(i.hasNext());
Tag tag2 = i.next();
assertFalse(i.hasNext());
assertThat(Arrays.asList(tag1, tag2)).containsExactly(Tag.create(K1, V1), Tag.create(K2, V2));
thrown.expect(NoSuchElementException.class);
i.next();
}
@Test
public void disallowCallingRemoveOnIterator() {
TagContextImpl tags = new TagContextImpl(ImmutableMap.of(K1, V1, K2, V2));
Iterator<Tag> i = tags.getIterator();
i.next();
thrown.expect(UnsupportedOperationException.class);
i.remove();
}
@Test
public void testEquals() {
new EqualsTester()
.addEqualityGroup(
tagger.emptyBuilder().put(K1, V1).put(K2, V2).build(),
tagger.emptyBuilder().put(K1, V1).put(K2, V2).build(),
tagger.emptyBuilder().put(K2, V2).put(K1, V1).build(),
new TagContext() {
@Override
protected Iterator<Tag> getIterator() {
return Lists.<Tag>newArrayList(Tag.create(K1, V1), Tag.create(K2, V2)).iterator();
}
})
.addEqualityGroup(tagger.emptyBuilder().put(K1, V1).put(K2, V1).build())
.addEqualityGroup(tagger.emptyBuilder().put(K1, V2).put(K2, V1).build())
.testEquals();
}
}
|
