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
|
// Copyright 2014 The Bazel Authors. All rights reserved.
//
// 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 com.google.devtools.build.lib.util;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Unit tests for {@link StringTrie}.
*/
@RunWith(JUnit4.class)
public class StringTrieTest {
@Test
public void empty() {
StringTrie<Integer> cut = new StringTrie<>();
assertNull(cut.get(""));
assertNull(cut.get("a"));
assertNull(cut.get("ab"));
}
@Test
public void simple() {
StringTrie<Integer> cut = new StringTrie<>();
cut.put("a", 1);
cut.put("b", 2);
assertNull(cut.get(""));
assertEquals(1, cut.get("a").intValue());
assertEquals(1, cut.get("ab").intValue());
assertEquals(1, cut.get("abc").intValue());
assertEquals(2, cut.get("b").intValue());
}
@Test
public void ancestors() {
StringTrie<Integer> cut = new StringTrie<>();
cut.put("abc", 3);
assertNull(cut.get(""));
assertNull(cut.get("a"));
assertNull(cut.get("ab"));
assertEquals(3, cut.get("abc").intValue());
assertEquals(3, cut.get("abcd").intValue());
cut.put("a", 1);
assertEquals(1, cut.get("a").intValue());
assertEquals(1, cut.get("ab").intValue());
assertEquals(3, cut.get("abc").intValue());
cut.put("", 0);
assertEquals(0, cut.get("").intValue());
assertEquals(0, cut.get("b").intValue());
assertEquals(1, cut.get("a").intValue());
}
}
|
