1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
use DataStructures\Trees\BinarySearchTree; |
4
|
|
|
use PHPUnit\Framework\TestCase; |
5
|
|
|
|
6
|
|
|
class BinarySearchTreeTest extends TestCase { |
|
|
|
|
7
|
|
|
private $tree; |
8
|
|
|
|
9
|
|
|
public function setUp() { |
10
|
|
|
$this->tree = new BinarySearchTree(); |
11
|
|
|
} |
12
|
|
|
|
13
|
|
|
public function testPut() { |
14
|
|
|
$this->tree->put(24, "Siro"); |
15
|
|
|
$this->tree->put(19, "Clara"); |
16
|
|
|
$this->tree->put(51, "Elisa"); |
17
|
|
|
$this->assertEquals(3, $this->tree->size()); |
18
|
|
|
$this->assertEquals("Siro", $this->tree->get(24)); |
19
|
|
|
$this->assertEquals("Clara", $this->tree->get(19)); |
20
|
|
|
$this->assertEquals("Elisa", $this->tree->get(51)); |
21
|
|
|
$this->assertNull($this->tree->get(100)); |
22
|
|
|
} |
23
|
|
|
|
24
|
|
|
public function testPutWithUpdate() { |
25
|
|
|
$this->tree->put(24, "Siro"); |
26
|
|
|
$this->tree->put(19, "Clara"); |
27
|
|
|
$this->tree->put(51, "Elisa"); |
28
|
|
|
$this->assertEquals(3, $this->tree->size()); |
29
|
|
|
$this->tree->put(51, "Pepe", true); |
30
|
|
|
$this->tree->put(24, "John", true); |
31
|
|
|
$this->assertEquals("John", $this->tree->get(24)); |
32
|
|
|
$this->assertEquals("Clara", $this->tree->get(19)); |
33
|
|
|
$this->assertEquals("Pepe", $this->tree->get(51)); |
34
|
|
|
} |
35
|
|
|
|
36
|
|
|
public function testPutOrUpdate() { |
37
|
|
|
$this->tree->put(24, "Siro"); |
38
|
|
|
$this->tree->put(19, "Clara"); |
39
|
|
|
$this->tree->put(51, "Elisa"); |
40
|
|
|
$this->assertEquals(3, $this->tree->size()); |
41
|
|
|
$this->tree->putOrUpdate(24, "John", true); |
|
|
|
|
42
|
|
|
$this->assertEquals(3, $this->tree->size()); |
43
|
|
|
$this->tree->putOrUpdate(34, "Ana"); |
44
|
|
|
$this->assertEquals(4, $this->tree->size()); |
45
|
|
|
$this->assertEquals("John", $this->tree->get(24)); |
46
|
|
|
$this->assertEquals("Clara", $this->tree->get(19)); |
47
|
|
|
$this->assertEquals("Elisa", $this->tree->get(51)); |
48
|
|
|
$this->assertEquals("Ana", $this->tree->get(34)); |
49
|
|
|
} |
50
|
|
|
|
51
|
|
|
public function testEmpty() { |
52
|
|
|
$this->assertTrue($this->tree->empty()); |
53
|
|
|
$this->tree->put(24, "Siro"); |
54
|
|
|
$this->tree->put(19, "Clara"); |
55
|
|
|
$this->tree->put(51, "Elisa"); |
56
|
|
|
$this->assertFalse($this->tree->empty()); |
57
|
|
|
} |
58
|
|
|
|
59
|
|
|
public function testSize() { |
60
|
|
|
$this->assertEquals(0, $this->tree->size()); |
61
|
|
|
$this->tree->put(24, "Siro"); |
62
|
|
|
$this->assertEquals(1, $this->tree->size()); |
63
|
|
|
$this->tree->put(19, "Clara"); |
64
|
|
|
$this->assertEquals(2, $this->tree->size()); |
65
|
|
|
$this->tree->put(51, "Elisa"); |
66
|
|
|
$this->assertEquals(3, $this->tree->size()); |
67
|
|
|
} |
68
|
|
|
|
69
|
|
|
public function testExists() { |
70
|
|
|
$this->assertFalse($this->tree->exists("greet")); |
71
|
|
|
$this->tree->put("greet", "saludo"); |
72
|
|
|
$this->tree->put("tree", "árbol"); |
73
|
|
|
$this->tree->put("water", "agua"); |
74
|
|
|
$this->assertTrue($this->tree->exists("greet")); |
75
|
|
|
$this->assertTrue($this->tree->exists("tree")); |
76
|
|
|
$this->assertTrue($this->tree->exists("water")); |
77
|
|
|
$this->assertFalse($this->tree->exists("sun")); |
78
|
|
|
} |
79
|
|
|
|
80
|
|
|
public function testSearch() { |
81
|
|
|
$this->tree->put("greet", "saludo"); |
82
|
|
|
$this->tree->put("tree", "árbol"); |
83
|
|
|
$this->tree->put("water", "agua"); |
84
|
|
|
$this->assertEquals("greet", $this->tree->search("greet")->key); |
85
|
|
|
$this->assertEquals("árbol", $this->tree->search("tree")->data); |
86
|
|
|
$this->assertEquals("water", $this->tree->search("water")->key); |
87
|
|
|
$this->assertNull($this->tree->search(100)); |
88
|
|
|
} |
89
|
|
|
|
90
|
|
|
public function testMin() { |
91
|
|
|
$this->tree->put(2, "two"); |
92
|
|
|
$this->tree->put(3, "three"); |
93
|
|
|
$this->assertEquals(2, $this->tree->min()->key); |
94
|
|
|
$this->tree->put(1, "one"); |
95
|
|
|
$this->assertEquals(1, $this->tree->min()->key); |
96
|
|
|
} |
97
|
|
|
|
98
|
|
View Code Duplication |
public function testMax() { |
|
|
|
|
99
|
|
|
$this->tree->put(1, "one"); |
100
|
|
|
$this->assertEquals(1, $this->tree->max()->key); |
101
|
|
|
$this->tree->put(2, "two"); |
102
|
|
|
$this->assertEquals(2, $this->tree->max()->key); |
103
|
|
|
$this->tree->put(3, "three"); |
104
|
|
|
$this->assertEquals(3, $this->tree->max()->key); |
105
|
|
|
} |
106
|
|
|
|
107
|
|
|
public function testDelete() { |
108
|
|
|
$this->tree->put(1, "one"); |
109
|
|
|
$this->tree->put(2, "two"); |
110
|
|
|
$this->tree->put(3, "three"); |
111
|
|
|
$this->assertEquals(1, $this->tree->delete(1)->key); |
112
|
|
|
$this->assertEquals(2, $this->tree->size()); |
113
|
|
|
$this->assertEquals("three", $this->tree->delete(3)->data); |
114
|
|
|
$this->assertEquals(1, $this->tree->size()); |
115
|
|
|
$this->assertEquals(2, $this->tree->delete(2)->key); |
116
|
|
|
$this->assertEquals(0, $this->tree->size()); |
117
|
|
|
$this->assertNull($this->tree->delete(2)); |
118
|
|
|
$this->assertTrue($this->tree->empty()); |
119
|
|
|
} |
120
|
|
|
|
121
|
|
View Code Duplication |
public function testDeleteMin() { |
|
|
|
|
122
|
|
|
$this->tree->put(1, "one"); |
123
|
|
|
$this->tree->put(2, "two"); |
124
|
|
|
$this->tree->put(3, "three"); |
125
|
|
|
$this->assertEquals(1, $this->tree->deleteMin()->key); |
126
|
|
|
$this->assertEquals(2, $this->tree->size()); |
127
|
|
|
$this->assertEquals(2, $this->tree->deleteMin()->key); |
128
|
|
|
$this->assertEquals(1, $this->tree->size()); |
129
|
|
|
$this->tree->put(100, "hundred"); |
130
|
|
|
$this->assertEquals(2, $this->tree->size()); |
131
|
|
|
$this->assertEquals(3, $this->tree->deleteMin()->key); |
132
|
|
|
$this->assertEquals(1, $this->tree->size()); |
133
|
|
|
$this->assertEquals(100, $this->tree->deleteMin()->key); |
134
|
|
|
$this->assertEquals(0, $this->tree->size()); |
135
|
|
|
} |
136
|
|
|
|
137
|
|
View Code Duplication |
public function testDeleteMax() { |
|
|
|
|
138
|
|
|
$this->tree->put(1, "one"); |
139
|
|
|
$this->tree->put(2, "two"); |
140
|
|
|
$this->tree->put(3, "three"); |
141
|
|
|
$this->assertEquals(3, $this->tree->deleteMax()->key); |
142
|
|
|
$this->assertEquals(2, $this->tree->size()); |
143
|
|
|
$this->assertEquals(2, $this->tree->deleteMax()->key); |
144
|
|
|
$this->assertEquals(1, $this->tree->size()); |
145
|
|
|
$this->tree->put(100, "hundred"); |
146
|
|
|
$this->assertEquals(2, $this->tree->size()); |
147
|
|
|
$this->assertEquals(100, $this->tree->deleteMax()->key); |
148
|
|
|
$this->assertEquals(1, $this->tree->size()); |
149
|
|
|
$this->assertEquals(1, $this->tree->deleteMax()->key); |
150
|
|
|
$this->assertEquals(0, $this->tree->size()); |
151
|
|
|
} |
152
|
|
|
|
153
|
|
View Code Duplication |
public function testPreorder() { |
|
|
|
|
154
|
|
|
$this->tree->put(2, "two"); |
155
|
|
|
$this->tree->put(1, "one"); |
156
|
|
|
$this->tree->put(3, "three"); |
157
|
|
|
$this->tree->preorder(function ($node) { |
|
|
|
|
158
|
|
|
// do something with the node |
159
|
|
|
// echo $node->key . PHP_EOL; |
|
|
|
|
160
|
|
|
}); |
161
|
|
|
$this->assertTrue(true); |
162
|
|
|
} |
163
|
|
|
|
164
|
|
View Code Duplication |
public function testInorder() { |
|
|
|
|
165
|
|
|
$this->tree->put(2, "two"); |
166
|
|
|
$this->tree->put(1, "one"); |
167
|
|
|
$this->tree->put(3, "three"); |
168
|
|
|
$this->tree->inorder(function ($node) { |
|
|
|
|
169
|
|
|
// do something with the node |
170
|
|
|
// echo $node->key . PHP_EOL; |
|
|
|
|
171
|
|
|
}); |
172
|
|
|
$this->assertTrue(true); |
173
|
|
|
} |
174
|
|
|
|
175
|
|
View Code Duplication |
public function testPostorder() { |
|
|
|
|
176
|
|
|
$this->tree->put(2, "two"); |
177
|
|
|
$this->tree->put(1, "one"); |
178
|
|
|
$this->tree->put(3, "three"); |
179
|
|
|
$this->tree->postorder(function ($node) { |
|
|
|
|
180
|
|
|
// do something with the node |
181
|
|
|
// echo $node->key . PHP_EOL; |
|
|
|
|
182
|
|
|
}); |
183
|
|
|
$this->assertTrue(true); |
184
|
|
|
} |
185
|
|
|
|
186
|
|
|
public function testIsLeaf() { |
187
|
|
|
$this->tree->put(2, "two"); |
188
|
|
|
$this->tree->put(1, "one"); |
189
|
|
|
$this->tree->put(3, "three"); |
190
|
|
|
|
191
|
|
|
$this->assertTrue($this->tree->isLeaf($this->tree->search(3))); |
192
|
|
|
$this->assertFalse($this->tree->isLeaf($this->tree->search(2))); |
193
|
|
|
} |
194
|
|
|
} |
You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.