|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
use PHPUnit\Framework\TestCase; |
|
4
|
|
|
use function Dgame\Optional\maybe; |
|
5
|
|
|
use function Dgame\Optional\none; |
|
6
|
|
|
use function Dgame\Optional\some; |
|
7
|
|
|
|
|
8
|
|
|
class OptionalTest extends TestCase |
|
|
|
|
|
|
9
|
|
|
{ |
|
10
|
|
|
public function testSome() |
|
11
|
|
|
{ |
|
12
|
|
|
$some = some(42); |
|
13
|
|
|
$this->assertTrue($some->isSome()); |
|
14
|
|
|
$this->assertEquals(42, $some->unwrap()); |
|
15
|
|
|
} |
|
16
|
|
|
|
|
17
|
|
|
public function testSomeByRef() |
|
18
|
|
|
{ |
|
19
|
|
|
$some = some(42); |
|
20
|
|
|
$this->assertTrue($some->isSome($value)); |
|
21
|
|
|
$this->assertFalse($some->isNone()); |
|
22
|
|
|
$this->assertEquals(42, $value); |
|
23
|
|
|
} |
|
24
|
|
|
|
|
25
|
|
|
public function testNone() |
|
26
|
|
|
{ |
|
27
|
|
|
$none = none(); |
|
28
|
|
|
$this->assertTrue($none->isNone()); |
|
29
|
|
|
$c = 42; |
|
30
|
|
|
$this->assertFalse($none->isSome($c)); |
|
31
|
|
|
$this->assertNull($c); |
|
32
|
|
|
} |
|
33
|
|
|
|
|
34
|
|
|
public function testNoneByRef() |
|
35
|
|
|
{ |
|
36
|
|
|
$none = none(); |
|
37
|
|
|
$this->assertTrue($none->isNone()); |
|
38
|
|
|
$this->assertFalse($none->isSome($value)); |
|
39
|
|
|
$this->assertNull($value); |
|
40
|
|
|
} |
|
41
|
|
|
|
|
42
|
|
|
public function testMaybe() |
|
43
|
|
|
{ |
|
44
|
|
|
$maybe = maybe(null); |
|
45
|
|
|
$this->assertTrue($maybe->isNone()); |
|
46
|
|
|
|
|
47
|
|
|
$maybe = maybe(false)->ensureNotFalse(); |
|
48
|
|
|
$this->assertTrue($maybe->isNone()); |
|
49
|
|
|
|
|
50
|
|
|
$maybe = maybe(42); |
|
51
|
|
|
$this->assertTrue($maybe->isSome()); |
|
52
|
|
|
$this->assertEquals(42, $maybe->unwrap()); |
|
53
|
|
|
} |
|
54
|
|
|
|
|
55
|
|
|
public function testChain() |
|
56
|
|
|
{ |
|
57
|
|
|
$a = new class |
|
58
|
|
|
{ |
|
59
|
|
|
public function test() : int |
|
60
|
|
|
{ |
|
61
|
|
|
return 42; |
|
62
|
|
|
} |
|
63
|
|
|
}; |
|
64
|
|
|
|
|
65
|
|
|
$some = some($a); |
|
66
|
|
|
$this->assertEquals(42, $some->unwrap()->test()); |
|
67
|
|
|
} |
|
68
|
|
|
|
|
69
|
|
|
public function testEnsure() |
|
70
|
|
|
{ |
|
71
|
|
|
$result = some(0)->ensure(function($value) { |
|
72
|
|
|
return $value > 0; |
|
73
|
|
|
}); |
|
74
|
|
|
$this->assertTrue($result->isNone()); |
|
75
|
|
|
$result = maybe(null)->ensure(function($value) { |
|
76
|
|
|
return $value > 0; |
|
77
|
|
|
}); |
|
78
|
|
|
$this->assertTrue($result->isNone()); |
|
79
|
|
|
} |
|
80
|
|
|
} |
Dgame /
php-optional
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.