ListenerCollectionTest::testImplementsListenerCollectionInterface() - Code Metrics - alex-patterson-webdev/event-dispatcher - Measure and Improve Code Quality continuously with Scrutinizer

testImplementsListenerCollectionInterface() A
last analyzed 2023-05-08 00:21 UTC

↳ Parent: ListenerCollectionTest

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	2
c	0
b	0
f	0
dl	0
loc	5
rs	10
cc	1
nc	1
nop	0

<?php

declare(strict_types=1);

namespace ArpTest\EventDispatcher\Listener;

use Arp\EventDispatcher\Listener\ListenerCollection;
use Arp\EventDispatcher\Listener\ListenerCollectionInterface;
use PHPUnit\Framework\TestCase;

final class ListenerCollectionTest extends TestCase
{
    public function testImplementsListenerCollectionInterface(): void
    {
        $collection = new ListenerCollection();

        $this->assertInstanceOf(ListenerCollectionInterface::class, $collection);
    }

    public function testGetIteratorWillReturnCloneOfListenerQueue(): void
    {
        $collection = new ListenerCollection();

        $listeners = [
            'Foo' => static function () {
                return 'Foo';
            },
            'Bar' => static function () {
                return 'Bar';
            },
        ];

        $collection->addListeners($listeners);

        $results = [];
        foreach ($collection as $listener) {
            $results[] = $listener();
        }

        $this->assertSame(['Foo', 'Bar'], $results);
    }

    public function testCountWillReturnIntegerMatchingTheNumberOfEventListeners(): void
    {
        $collection = new ListenerCollection();

        /** @var callable[] $listeners */
        $listeners = [
            static function () {
            },
            static function () {
            },
            static function () {
            },
            static function () {
            },
        ];

        $collection->addListeners($listeners);

        $this->assertSame(count($listeners), $collection->count());
    }

    public function testEventListenersCanBeAddedViaConstructor(): void
    {
        $expected = [
            'foo',
            'bar',
            'baz',
        ];

        $listeners = [
            static function () {
                return 'foo';
            },
            static function () {
                return 'bar';
            },
            static function () {
                return 'baz';
            },
        ];

        $collection = new ListenerCollection($listeners);

        $results = [];
        foreach ($collection as $listener) {
            $results[] = $listener();
        }

        $this->assertSame($expected, $results);
        $this->assertSame(count($listeners), $collection->count());
    }

    public function testListenerPriorities(): void
    {
        $listeners = [
            static function () {
                return 5;
            },
            static function () {
                return 1;
            },
            static function () {
                return 3;
            },
            static function () {
                return 7;
            },
            static function () {
                return 4;
            },
            static function () {
                return 8;
            },
            static function () {
                return 6;
            },
            static function () {
                return 2;
            },
        ];

        $collection = new ListenerCollection();

        $collection->addListener($listeners[0], 300); // 5
        $collection->addListener($listeners[1], 700); // 1
        $collection->addListener($listeners[2], 500); // 3
        $collection->addListener($listeners[3], 101); // 7
        $collection->addListener($listeners[4], 400); // 4
        $collection->addListener($listeners[5], 100); // 8
        $collection->addListener($listeners[6], 200); // 6
        $collection->addListener($listeners[7], 600); // 2

        $results = [];
        foreach ($collection as $item) {
            $results[] = $item();
        }

        $this->assertSame([1, 2, 3, 4, 5, 6, 7, 8], $results);
    }

    public function testListenerPrioritiesRespectNaturalOrderWhenPrioritiesAreTheSame(): void
    {
        $listeners = [
            static function () {
                return 5;
            },
            static function () {
                return 1;
            },
            static function () {
                return 3;
            },
            static function () {
                return 7;
            },
            static function () {
                return 4;
            },
            static function () {
                return 8;
            },
            static function () {
                return 6;
            },
            static function () {
                return 2;
            },
        ];

        $collection = new ListenerCollection();

        $collection->addListener($listeners[0]); // 5
        $collection->addListener($listeners[1]); // 1
        $collection->addListener($listeners[2]); // 3
        $collection->addListener($listeners[3]); // 7
        $collection->addListener($listeners[4]); // 4
        $collection->addListener($listeners[5]); // 8
        $collection->addListener($listeners[6]); // 6
        $collection->addListener($listeners[7]); // 2

        $results = [];
        foreach ($collection as $item) {
            $results[] = $item();
        }

        $this->assertSame([5, 1, 3, 7, 4, 8, 6, 2], $results);
    }
}


1			<?php
2
3			declare(strict_types=1);
4
5			namespace ArpTest\EventDispatcher\Listener;
6
7			use Arp\EventDispatcher\Listener\ListenerCollection;
8			use Arp\EventDispatcher\Listener\ListenerCollectionInterface;
9			use PHPUnit\Framework\TestCase;
10
11			final class ListenerCollectionTest extends TestCase
12			{
13			public function testImplementsListenerCollectionInterface(): void
14			{
15			$collection = new ListenerCollection();
16
17			$this->assertInstanceOf(ListenerCollectionInterface::class, $collection);
18			}
19
20			public function testGetIteratorWillReturnCloneOfListenerQueue(): void
21			{
22			$collection = new ListenerCollection();
23
24			$listeners = [
25			'Foo' => static function () {
26			return 'Foo';
27			},
28			'Bar' => static function () {
29			return 'Bar';
30			},
31			];
32
33			$collection->addListeners($listeners);
34
35			$results = [];
36			foreach ($collection as $listener) {
37			$results[] = $listener();
38			}
39
40			$this->assertSame(['Foo', 'Bar'], $results);
41			}
42
43			public function testCountWillReturnIntegerMatchingTheNumberOfEventListeners(): void
44			{
45			$collection = new ListenerCollection();
46
47			/** @var callable[] $listeners */
48			$listeners = [
49			static function () {
50			},
51			static function () {
52			},
53			static function () {
54			},
55			static function () {
56			},
57			];
58
59			$collection->addListeners($listeners);
60
61			$this->assertSame(count($listeners), $collection->count());
62			}
63
64			public function testEventListenersCanBeAddedViaConstructor(): void
65			{
66			$expected = [
67			'foo',
68			'bar',
69			'baz',
70			];
71
72			$listeners = [
73			static function () {
74			return 'foo';
75			},
76			static function () {
77			return 'bar';
78			},
79			static function () {
80			return 'baz';
81			},
82			];
83
84			$collection = new ListenerCollection($listeners);
85
86			$results = [];
87			foreach ($collection as $listener) {
88			$results[] = $listener();
89			}
90
91			$this->assertSame($expected, $results);
92			$this->assertSame(count($listeners), $collection->count());
93			}
94
95			public function testListenerPriorities(): void
96			{
97			$listeners = [
98			static function () {
99			return 5;
100			},
101			static function () {
102			return 1;
103			},
104			static function () {
105			return 3;
106			},
107			static function () {
108			return 7;
109			},
110			static function () {
111			return 4;
112			},
113			static function () {
114			return 8;
115			},
116			static function () {
117			return 6;
118			},
119			static function () {
120			return 2;
121			},
122			];
123
124			$collection = new ListenerCollection();
125
126			$collection->addListener($listeners[0], 300); // 5
127			$collection->addListener($listeners[1], 700); // 1
128			$collection->addListener($listeners[2], 500); // 3
129			$collection->addListener($listeners[3], 101); // 7
130			$collection->addListener($listeners[4], 400); // 4
131			$collection->addListener($listeners[5], 100); // 8
132			$collection->addListener($listeners[6], 200); // 6
133			$collection->addListener($listeners[7], 600); // 2
134
135			$results = [];
136			foreach ($collection as $item) {
137			$results[] = $item();
138			}
139
140			$this->assertSame([1, 2, 3, 4, 5, 6, 7, 8], $results);
141			}
142
143			public function testListenerPrioritiesRespectNaturalOrderWhenPrioritiesAreTheSame(): void
144			{
145			$listeners = [
146			static function () {
147			return 5;
148			},
149			static function () {
150			return 1;
151			},
152			static function () {
153			return 3;
154			},
155			static function () {
156			return 7;
157			},
158			static function () {
159			return 4;
160			},
161			static function () {
162			return 8;
163			},
164			static function () {
165			return 6;
166			},
167			static function () {
168			return 2;
169			},
170			];
171
172			$collection = new ListenerCollection();
173
174			$collection->addListener($listeners[0]); // 5
175			$collection->addListener($listeners[1]); // 1
176			$collection->addListener($listeners[2]); // 3
177			$collection->addListener($listeners[3]); // 7
178			$collection->addListener($listeners[4]); // 4
179			$collection->addListener($listeners[5]); // 8
180			$collection->addListener($listeners[6]); // 6
181			$collection->addListener($listeners[7]); // 2
182
183			$results = [];
184			foreach ($collection as $item) {
185			$results[] = $item();
186			}
187
188			$this->assertSame([5, 1, 3, 7, 4, 8, 6, 2], $results);
189			}
190			}
191

alex-patterson-webdev / event-dispatcher

testImplementsListenerCollectionInterface() A last analyzed 2023-05-08 00:21 UTC

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testImplementsListenerCollectionInterface() A
last analyzed 2023-05-08 00:21 UTC