|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
use Litipk\BigNumbers\Decimal as Decimal; |
|
4
|
|
|
|
|
5
|
|
|
|
|
6
|
|
|
date_default_timezone_set('UTC'); |
|
7
|
|
|
|
|
8
|
|
|
|
|
9
|
|
|
class DecimalEqualsTest extends PHPUnit_Framework_TestCase |
|
10
|
|
|
{ |
|
11
|
|
|
public function testSimpleEquals() |
|
12
|
|
|
{ |
|
13
|
|
|
// Transitivity & inter-types constructors compatibility |
|
14
|
|
|
$this->assertTrue(Decimal::fromInteger(1)->equals(Decimal::fromString("1"))); |
|
15
|
|
|
$this->assertTrue(Decimal::fromString("1")->equals(Decimal::fromFloat(1.0))); |
|
16
|
|
|
$this->assertTrue(Decimal::fromInteger(1)->equals(Decimal::fromFloat(1.0))); |
|
17
|
|
|
|
|
18
|
|
|
// Reflexivity |
|
19
|
|
|
$this->assertTrue(Decimal::fromInteger(1)->equals(Decimal::fromInteger(1))); |
|
20
|
|
|
|
|
21
|
|
|
// Symmetry |
|
22
|
|
|
$this->assertTrue(Decimal::fromString("1")->equals(Decimal::fromInteger(1))); |
|
23
|
|
|
$this->assertTrue(Decimal::fromFloat(1.0)->equals(Decimal::fromString("1"))); |
|
24
|
|
|
$this->assertTrue(Decimal::fromFloat(1.0)->equals(Decimal::fromInteger(1))); |
|
25
|
|
|
} |
|
26
|
|
|
|
|
27
|
|
|
public function testSimpleNotEquals() |
|
28
|
|
|
{ |
|
29
|
|
|
// Symmetry |
|
30
|
|
|
$this->assertFalse(Decimal::fromInteger(1)->equals(Decimal::fromInteger(2))); |
|
31
|
|
|
$this->assertFalse(Decimal::fromInteger(2)->equals(Decimal::fromInteger(1))); |
|
32
|
|
|
|
|
33
|
|
|
$this->assertFalse(Decimal::fromFloat(1.01)->equals(Decimal::fromInteger(1))); |
|
34
|
|
|
$this->assertFalse(Decimal::fromInteger(1)->equals(Decimal::fromFloat(1.01))); |
|
35
|
|
|
} |
|
36
|
|
|
|
|
37
|
|
|
public function testScaledEquals() |
|
38
|
|
|
{ |
|
39
|
|
|
// Transitivity |
|
40
|
|
|
$this->assertTrue(Decimal::fromFloat(1.001)->equals(Decimal::fromFloat(1.01), 1)); |
|
41
|
|
|
$this->assertTrue(Decimal::fromFloat(1.01)->equals(Decimal::fromFloat(1.004), 1)); |
|
42
|
|
|
$this->assertTrue(Decimal::fromFloat(1.001)->equals(Decimal::fromFloat(1.004), 1)); |
|
43
|
|
|
|
|
44
|
|
|
// Reflexivity |
|
45
|
|
|
$this->assertTrue(Decimal::fromFloat(1.00525)->equals(Decimal::fromFloat(1.00525), 2)); |
|
46
|
|
|
|
|
47
|
|
|
// Symmetry |
|
48
|
|
|
$this->assertTrue(Decimal::fromFloat(1.01)->equals(Decimal::fromFloat(1.001), 1)); |
|
49
|
|
|
$this->assertTrue(Decimal::fromFloat(1.004)->equals(Decimal::fromFloat(1.01), 1)); |
|
50
|
|
|
$this->assertTrue(Decimal::fromFloat(1.004)->equals(Decimal::fromFloat(1.001), 1)); |
|
51
|
|
|
|
|
52
|
|
|
// Proper rounding |
|
53
|
|
|
$this->assertTrue(Decimal::fromFloat(1.004)->equals(Decimal::fromFloat(1.000), 2)); |
|
54
|
|
|
|
|
55
|
|
|
// Warning, float to Decimal conversion can have unexpected behaviors, like converting |
|
56
|
|
|
// 1.005 to Decimal("1.0049999999999999") |
|
57
|
|
|
$this->assertTrue(Decimal::fromFloat(1.0050000000001)->equals(Decimal::fromFloat(1.010), 2)); |
|
58
|
|
|
|
|
59
|
|
|
$this->assertTrue(Decimal::fromString("1.005")->equals(Decimal::fromString("1.010"), 2)); |
|
60
|
|
|
} |
|
61
|
|
|
|
|
62
|
|
|
public function testScaledNotEquals() |
|
63
|
|
|
{ |
|
64
|
|
|
# Proper rounding |
|
65
|
|
|
$this->assertFalse(Decimal::fromFloat(1.004)->equals(Decimal::fromFloat(1.0050000000001), 2)); |
|
66
|
|
|
} |
|
67
|
|
|
} |
|
68
|
|
|
|
Litipk /
php-bignumbers
