PrimitiveTest::testThrowWhenTryingToAccessFirstElementOnEmptySequence() - Code Metrics - Inspection of "Merge branch 'develop'" - Innmind/Immutable - Measure and Improve Code Quality continuously with Scrutinizer

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by Baptiste

created 2019-12-08 17:33 UTC

testThrowWhenTryingToAccessFirstElementOnEmptySequence() A

↳ Parent: PrimitiveTest

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

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

<?php
declare(strict_types = 1);

namespace Tests\Innmind\Immutable\Sequence;

use Innmind\Immutable\{
    Sequence\Primitive,
filter:
    dependency_paths: ["lib/*"]
    Sequence\Implementation,
    Map,
    Sequence,
    Str,
    Set,
    Exception\OutOfBoundException,
    Exception\CannotGroupEmptyStructure,
    Exception\ElementNotFound,
};
use function Innmind\Immutable\unwrap;
use PHPUnit\Framework\TestCase;

class PrimitiveTest extends TestCase
{
    public function testInterface()
    {
        $this->assertInstanceOf(
            Implementation::class,
            new Primitive('mixed'),
        );
    }

    public function testType()
    {
        $this->assertSame('int', (new Primitive('int'))->type());
    }

    public function testSize()
    {
        $this->assertSame(2, (new Primitive('int', 1, 1))->size());
        $this->assertSame(2, (new Primitive('int', 1, 1))->count());
    }

    public function testIterator()
    {
        $this->assertSame(
            [1, 2, 3],
            \iterator_to_array((new Primitive('int', 1, 2, 3))->iterator()),
        );
    }

    public function testGet()
    {
        $this->assertSame(42, (new Primitive('int', 1, 42, 3))->get(1));
    }

    public function testThrowWhenIndexNotFound()
    {
        $this->expectException(OutOfBoundException::class);

        (new Primitive('int'))->get(0);
    }

    public function testDiff()
    {
        $a = new Primitive('int', 1, 2);
        $b = new Primitive('int', 2, 3);
        $c = $a->diff($b);

        $this->assertSame([1, 2], \iterator_to_array($a->iterator()));
        $this->assertSame([2, 3], \iterator_to_array($b->iterator()));
        $this->assertInstanceOf(Primitive::class, $c);
        $this->assertSame([1], \iterator_to_array($c->iterator()));
    }

    public function testDistinct()
    {
        $a = new Primitive('int', 1, 2, 1);
        $b = $a->distinct();

        $this->assertSame([1, 2, 1], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame([1, 2], \iterator_to_array($b->iterator()));
    }

    public function testDrop()
    {
        $a = new Primitive('int', 1, 2, 3, 4);
        $b = $a->drop(2);

        $this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame([3, 4], \iterator_to_array($b->iterator()));
    }

    public function testDropEnd()
    {
        $a = new Primitive('int', 1, 2, 3, 4);
        $b = $a->dropEnd(2);

        $this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame([1, 2], \iterator_to_array($b->iterator()));
    }

    public function testEquals()
    {
        $this->assertTrue((new Primitive('int', 1, 2))->equals(new Primitive('int', 1, 2)));
        $this->assertFalse((new Primitive('int', 1, 2))->equals(new Primitive('int', 2)));
    }

    public function testFilter()
    {
        $a = new Primitive('int', 1, 2, 3, 4);
        $b = $a->filter(fn($i) => $i % 2 === 0);

        $this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame([2, 4], \iterator_to_array($b->iterator()));
    }

    public function testForeach()
    {
        $sequence = new Primitive('int', 1, 2, 3, 4);
        $calls = 0;
        $sum = 0;

        $this->assertNull($sequence->foreach(function($i) use (&$calls, &$sum) {
            ++$calls;
            $sum += $i;
        }));
        $this->assertSame(4, $calls);
        $this->assertSame(10, $sum);
    }

    public function testThrowWhenTryingToGroupEmptySequence()
    {
        $this->expectException(CannotGroupEmptyStructure::class);

        (new Primitive('int'))->groupBy(fn($i) => $i);
    }

    public function testGroupBy()
    {
        $sequence = new Primitive('int', 1, 2, 3, 4);
        $groups = $sequence->groupBy(fn($i) => $i % 2);

        $this->assertSame([1, 2, 3, 4], \iterator_to_array($sequence->iterator()));
        $this->assertInstanceOf(Map::class, $groups);
        $this->assertTrue($groups->isOfType('int', Sequence::class));
        $this->assertCount(2, $groups);
        $this->assertTrue($groups->get(0)->isOfType('int'));
        $this->assertTrue($groups->get(1)->isOfType('int'));
        $this->assertSame([2, 4], unwrap($groups->get(0)));
        $this->assertSame([1, 3], unwrap($groups->get(1)));
    }

    public function testThrowWhenTryingToAccessFirstElementOnEmptySequence()
    {
        $this->expectException(OutOfBoundException::class);

        (new Primitive('int'))->first();
    }

    public function testThrowWhenTryingToAccessLastElementOnEmptySequence()
    {
        $this->expectException(OutOfBoundException::class);

        (new Primitive('int'))->last();
    }

    public function testFirst()
    {
        $this->assertSame(2, (new Primitive('int', 2, 3, 4))->first());
    }

    public function testLast()
    {
        $this->assertSame(4, (new Primitive('int', 2, 3, 4))->last());
    }

    public function testContains()
    {
        $sequence = new Primitive('int', 1, 2, 3);

        $this->assertTrue($sequence->contains(2));
        $this->assertFalse($sequence->contains(4));
    }

    public function testIndexOf()
    {
        $sequence = new Primitive('int', 1, 2, 4);

        $this->assertSame(1, $sequence->indexOf(2));
        $this->assertSame(2, $sequence->indexOf(4));
    }

    public function testThrowWhenTryingToAccessIndexOfUnknownValue()
    {
        $this->expectException(ElementNotFound::class);

        (new Primitive('int'))->indexOf(1);
    }

    public function testIndices()
    {
        $a = new Primitive('string', '1', '2');
        $b = $a->indices();

        $this->assertSame(['1', '2'], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame('int', $b->type());
        $this->assertSame([0, 1], \iterator_to_array($b->iterator()));
    }

    public function testIndicesOnEmptySequence()
    {
        $a = new Primitive('string');
        $b = $a->indices();

        $this->assertSame([], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame('int', $b->type());
        $this->assertSame([], \iterator_to_array($b->iterator()));
    }

    public function testMap()
    {
        $a = new Primitive('int', 1, 2, 3);
        $b = $a->map(fn($i) => $i * 2);

        $this->assertSame([1, 2, 3], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame([2, 4, 6], \iterator_to_array($b->iterator()));
    }

    public function testThrowWhenTryingToModifyTheTypeWhenMapping()
    {
        $this->expectException(\TypeError::class);
        $this->expectExceptionMessage('Argument 1 must be of type int, string given');

        (new Primitive('int', 1))->map(fn($i) => (string) $i);
    }

    public function testPad()
    {
        $a = new Primitive('int', 1, 2);
        $b = $a->pad(4, 0);
        $c = $a->pad(1, 0);

        $this->assertSame([1, 2], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertInstanceOf(Primitive::class, $c);
        $this->assertSame([1, 2, 0, 0], \iterator_to_array($b->iterator()));
        $this->assertSame([1, 2], \iterator_to_array($c->iterator()));
    }

    public function testPartition()
    {
        $sequence = new Primitive('int', 1, 2, 3, 4);
        $partition = $sequence->partition(fn($i) => $i % 2 === 0);

        $this->assertSame([1, 2, 3, 4], \iterator_to_array($sequence->iterator()));
        $this->assertInstanceOf(Map::class, $partition);
        $this->assertTrue($partition->isOfType('bool', Sequence::class));
        $this->assertCount(2, $partition);
        $this->assertTrue($partition->get(true)->isOfType('int'));
        $this->assertTrue($partition->get(false)->isOfType('int'));
        $this->assertSame([2, 4], unwrap($partition->get(true)));
        $this->assertSame([1, 3], unwrap($partition->get(false)));
    }

    public function testSlice()
    {
        $a = new Primitive('int', 2, 3, 4, 5);
        $b = $a->slice(1, 3);

        $this->assertSame([2, 3, 4, 5], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame([3, 4], \iterator_to_array($b->iterator()));
    }

    public function testSplitAt()
    {
        $sequence = new Primitive('int', 2, 3, 4, 5);
        $parts = $sequence->splitAt(2);

        $this->assertSame([2, 3, 4, 5], \iterator_to_array($sequence->iterator()));
        $this->assertInstanceOf(Sequence::class, $parts);
        $this->assertTrue($parts->isOfType(Sequence::class));
        $this->assertCount(2, $parts);
        $this->assertTrue($parts->first()->isOfType('int'));
        $this->assertTrue($parts->last()->isOfType('int'));
        $this->assertSame([2, 3], unwrap($parts->first()));
        $this->assertSame([4, 5], unwrap($parts->last()));
    }

    public function testTake()
    {
        $a = new Primitive('int', 2, 3, 4);
        $b = $a->take(2);

        $this->assertSame([2, 3, 4], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame([2, 3], \iterator_to_array($b->iterator()));
    }

    public function testTakeEnd()
    {
        $a = new Primitive('int', 2, 3, 4);
        $b = $a->takeEnd(2);

        $this->assertSame([2, 3, 4], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame([3, 4], \iterator_to_array($b->iterator()));
    }

    public function testAppend()
    {
        $a = new Primitive('int', 1, 2);
        $b = new Primitive('int', 3, 4);
        $c = $a->append($b);

        $this->assertSame([1, 2], \iterator_to_array($a->iterator()));
        $this->assertSame([3, 4], \iterator_to_array($b->iterator()));
        $this->assertInstanceOf(Primitive::class, $c);
        $this->assertSame([1, 2, 3, 4], \iterator_to_array($c->iterator()));
    }

    public function testIntersect()
    {
        $a = new Primitive('int', 1, 2);
        $b = new Primitive('int', 2, 3);
        $c = $a->intersect($b);

        $this->assertSame([1, 2], \iterator_to_array($a->iterator()));
        $this->assertSame([2, 3], \iterator_to_array($b->iterator()));
        $this->assertInstanceOf(Primitive::class, $c);
        $this->assertSame([2], \iterator_to_array($c->iterator()));
    }

    public function testAdd()
    {
        $a = new Primitive('int', 1);
        $b = ($a)(2);

        $this->assertSame([1], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame([1, 2], \iterator_to_array($b->iterator()));
    }

    public function testSort()
    {
        $a = new Primitive('int', 1, 4, 3, 2);
        $b = $a->sort(fn($a, $b) => $a > $b);

        $this->assertSame([1, 4, 3, 2], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame([1, 2, 3, 4], \iterator_to_array($b->iterator()));
    }

    public function testReduce()
    {
        $sequence = new Primitive('int', 1, 2, 3, 4);

        $this->assertSame(10, $sequence->reduce(0, fn($sum, $i) => $sum + $i));
    }

    public function testClear()
    {
        $a = new Primitive('int', 1, 2);
        $b = $a->clear();

        $this->assertSame([1, 2], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame([], \iterator_to_array($b->iterator()));
    }

    public function testReverse()
    {
        $a = new Primitive('int', 1, 2, 3, 4);
        $b = $a->reverse();

        $this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator()));
        $this->assertInstanceOf(Primitive::class, $b);
        $this->assertSame([4, 3, 2, 1], \iterator_to_array($b->iterator()));
    }

    public function testEmpty()
    {
        $this->assertTrue((new Primitive('int'))->empty());
        $this->assertFalse((new Primitive('int', 1))->empty());
    }

    public function testToSequenceOf()
    {
        $sequence = new Primitive('int', 1, 2, 3);
        $sequence = $sequence->toSequenceOf('string|int', function($i) {
            yield (string) $i;
            yield $i;
        });

        $this->assertInstanceOf(Sequence::class, $sequence);
        $this->assertSame(
            ['1', 1, '2', 2, '3', 3],
            unwrap($sequence),
        );
    }

    public function testToSetOf()
    {
        $sequence = new Primitive('int', 1, 2, 3);
        $set = $sequence->toSetOf('string|int', function($i) {
            yield (string) $i;
            yield $i;
        });

        $this->assertInstanceOf(Set::class, $set);
        $this->assertSame(
            ['1', 1, '2', 2, '3', 3],
            unwrap($set),
        );
    }

    public function testToMapOf()
    {
        $sequence = new Primitive('int', 1, 2, 3);
        $map = $sequence->toMapOf('string', 'int', fn($i) => yield (string) $i => $i);

        $this->assertInstanceOf(Map::class, $map);
        $this->assertCount(3, $map);
        $this->assertSame(1, $map->get('1'));
        $this->assertSame(2, $map->get('2'));
        $this->assertSame(3, $map->get('3'));
    }
}


1			<?php
2			declare(strict_types = 1);
3
4			namespace Tests\Innmind\Immutable\Sequence;
5
6			use Innmind\Immutable\{
7			Sequence\Primitive,
			0 ignored issues – show Bug introduced 2019-12-08 17:26 UTC by Report Bug Copy Issue Report The type `Innmind\Immutable\Sequence\Primitive` was not found. Maybe you did not declare it correctly or list all dependencies? The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g. `excluded_paths: ["lib/"]`, you can move it to the dependency path list as follows: filter: dependency_paths: ["lib/"] For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths Loading history...
8			Sequence\Implementation,
9			Map,
10			Sequence,
11			Str,
12			Set,
13			Exception\OutOfBoundException,
14			Exception\CannotGroupEmptyStructure,
15			Exception\ElementNotFound,
16			};
17			use function Innmind\Immutable\unwrap;
18			use PHPUnit\Framework\TestCase;
19
20			class PrimitiveTest extends TestCase
21			{
22			public function testInterface()
23			{
24			$this->assertInstanceOf(
25			Implementation::class,
26			new Primitive('mixed'),
27			);
28			}
29
30			public function testType()
31			{
32			$this->assertSame('int', (new Primitive('int'))->type());
33			}
34
35			public function testSize()
36			{
37			$this->assertSame(2, (new Primitive('int', 1, 1))->size());
38			$this->assertSame(2, (new Primitive('int', 1, 1))->count());
39			}
40
41			public function testIterator()
42			{
43			$this->assertSame(
44			[1, 2, 3],
45			\iterator_to_array((new Primitive('int', 1, 2, 3))->iterator()),
46			);
47			}
48
49			public function testGet()
50			{
51			$this->assertSame(42, (new Primitive('int', 1, 42, 3))->get(1));
52			}
53
54			public function testThrowWhenIndexNotFound()
55			{
56			$this->expectException(OutOfBoundException::class);
57
58			(new Primitive('int'))->get(0);
59			}
60
61			public function testDiff()
62			{
63			$a = new Primitive('int', 1, 2);
64			$b = new Primitive('int', 2, 3);
65			$c = $a->diff($b);
66
67			$this->assertSame([1, 2], \iterator_to_array($a->iterator()));
68			$this->assertSame([2, 3], \iterator_to_array($b->iterator()));
69			$this->assertInstanceOf(Primitive::class, $c);
70			$this->assertSame([1], \iterator_to_array($c->iterator()));
71			}
72
73			public function testDistinct()
74			{
75			$a = new Primitive('int', 1, 2, 1);
76			$b = $a->distinct();
77
78			$this->assertSame([1, 2, 1], \iterator_to_array($a->iterator()));
79			$this->assertInstanceOf(Primitive::class, $b);
80			$this->assertSame([1, 2], \iterator_to_array($b->iterator()));
81			}
82
83			public function testDrop()
84			{
85			$a = new Primitive('int', 1, 2, 3, 4);
86			$b = $a->drop(2);
87
88			$this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator()));
89			$this->assertInstanceOf(Primitive::class, $b);
90			$this->assertSame([3, 4], \iterator_to_array($b->iterator()));
91			}
92
93			public function testDropEnd()
94			{
95			$a = new Primitive('int', 1, 2, 3, 4);
96			$b = $a->dropEnd(2);
97
98			$this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator()));
99			$this->assertInstanceOf(Primitive::class, $b);
100			$this->assertSame([1, 2], \iterator_to_array($b->iterator()));
101			}
102
103			public function testEquals()
104			{
105			$this->assertTrue((new Primitive('int', 1, 2))->equals(new Primitive('int', 1, 2)));
106			$this->assertFalse((new Primitive('int', 1, 2))->equals(new Primitive('int', 2)));
107			}
108
109			public function testFilter()
110			{
111			$a = new Primitive('int', 1, 2, 3, 4);
112			$b = $a->filter(fn($i) => $i % 2 === 0);
113
114			$this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator()));
115			$this->assertInstanceOf(Primitive::class, $b);
116			$this->assertSame([2, 4], \iterator_to_array($b->iterator()));
117			}
118
119			public function testForeach()
120			{
121			$sequence = new Primitive('int', 1, 2, 3, 4);
122			$calls = 0;
123			$sum = 0;
124
125			$this->assertNull($sequence->foreach(function($i) use (&$calls, &$sum) {
126			++$calls;
127			$sum += $i;
128			}));
129			$this->assertSame(4, $calls);
130			$this->assertSame(10, $sum);
131			}
132
133			public function testThrowWhenTryingToGroupEmptySequence()
134			{
135			$this->expectException(CannotGroupEmptyStructure::class);
136
137			(new Primitive('int'))->groupBy(fn($i) => $i);
138			}
139
140			public function testGroupBy()
141			{
142			$sequence = new Primitive('int', 1, 2, 3, 4);
143			$groups = $sequence->groupBy(fn($i) => $i % 2);
144
145			$this->assertSame([1, 2, 3, 4], \iterator_to_array($sequence->iterator()));
146			$this->assertInstanceOf(Map::class, $groups);
147			$this->assertTrue($groups->isOfType('int', Sequence::class));
148			$this->assertCount(2, $groups);
149			$this->assertTrue($groups->get(0)->isOfType('int'));
150			$this->assertTrue($groups->get(1)->isOfType('int'));
151			$this->assertSame([2, 4], unwrap($groups->get(0)));
152			$this->assertSame([1, 3], unwrap($groups->get(1)));
153			}
154
155			public function testThrowWhenTryingToAccessFirstElementOnEmptySequence()
156			{
157			$this->expectException(OutOfBoundException::class);
158
159			(new Primitive('int'))->first();
160			}
161
162			public function testThrowWhenTryingToAccessLastElementOnEmptySequence()
163			{
164			$this->expectException(OutOfBoundException::class);
165
166			(new Primitive('int'))->last();
167			}
168
169			public function testFirst()
170			{
171			$this->assertSame(2, (new Primitive('int', 2, 3, 4))->first());
172			}
173
174			public function testLast()
175			{
176			$this->assertSame(4, (new Primitive('int', 2, 3, 4))->last());
177			}
178
179			public function testContains()
180			{
181			$sequence = new Primitive('int', 1, 2, 3);
182
183			$this->assertTrue($sequence->contains(2));
184			$this->assertFalse($sequence->contains(4));
185			}
186
187			public function testIndexOf()
188			{
189			$sequence = new Primitive('int', 1, 2, 4);
190
191			$this->assertSame(1, $sequence->indexOf(2));
192			$this->assertSame(2, $sequence->indexOf(4));
193			}
194
195			public function testThrowWhenTryingToAccessIndexOfUnknownValue()
196			{
197			$this->expectException(ElementNotFound::class);
198
199			(new Primitive('int'))->indexOf(1);
200			}
201
202			public function testIndices()
203			{
204			$a = new Primitive('string', '1', '2');
205			$b = $a->indices();
206
207			$this->assertSame(['1', '2'], \iterator_to_array($a->iterator()));
208			$this->assertInstanceOf(Primitive::class, $b);
209			$this->assertSame('int', $b->type());
210			$this->assertSame([0, 1], \iterator_to_array($b->iterator()));
211			}
212
213			public function testIndicesOnEmptySequence()
214			{
215			$a = new Primitive('string');
216			$b = $a->indices();
217
218			$this->assertSame([], \iterator_to_array($a->iterator()));
219			$this->assertInstanceOf(Primitive::class, $b);
220			$this->assertSame('int', $b->type());
221			$this->assertSame([], \iterator_to_array($b->iterator()));
222			}
223
224			public function testMap()
225			{
226			$a = new Primitive('int', 1, 2, 3);
227			$b = $a->map(fn($i) => $i * 2);
228
229			$this->assertSame([1, 2, 3], \iterator_to_array($a->iterator()));
230			$this->assertInstanceOf(Primitive::class, $b);
231			$this->assertSame([2, 4, 6], \iterator_to_array($b->iterator()));
232			}
233
234			public function testThrowWhenTryingToModifyTheTypeWhenMapping()
235			{
236			$this->expectException(\TypeError::class);
237			$this->expectExceptionMessage('Argument 1 must be of type int, string given');
238
239			(new Primitive('int', 1))->map(fn($i) => (string) $i);
240			}
241
242			public function testPad()
243			{
244			$a = new Primitive('int', 1, 2);
245			$b = $a->pad(4, 0);
246			$c = $a->pad(1, 0);
247
248			$this->assertSame([1, 2], \iterator_to_array($a->iterator()));
249			$this->assertInstanceOf(Primitive::class, $b);
250			$this->assertInstanceOf(Primitive::class, $c);
251			$this->assertSame([1, 2, 0, 0], \iterator_to_array($b->iterator()));
252			$this->assertSame([1, 2], \iterator_to_array($c->iterator()));
253			}
254
255			public function testPartition()
256			{
257			$sequence = new Primitive('int', 1, 2, 3, 4);
258			$partition = $sequence->partition(fn($i) => $i % 2 === 0);
259
260			$this->assertSame([1, 2, 3, 4], \iterator_to_array($sequence->iterator()));
261			$this->assertInstanceOf(Map::class, $partition);
262			$this->assertTrue($partition->isOfType('bool', Sequence::class));
263			$this->assertCount(2, $partition);
264			$this->assertTrue($partition->get(true)->isOfType('int'));
265			$this->assertTrue($partition->get(false)->isOfType('int'));
266			$this->assertSame([2, 4], unwrap($partition->get(true)));
267			$this->assertSame([1, 3], unwrap($partition->get(false)));
268			}
269
270			public function testSlice()
271			{
272			$a = new Primitive('int', 2, 3, 4, 5);
273			$b = $a->slice(1, 3);
274
275			$this->assertSame([2, 3, 4, 5], \iterator_to_array($a->iterator()));
276			$this->assertInstanceOf(Primitive::class, $b);
277			$this->assertSame([3, 4], \iterator_to_array($b->iterator()));
278			}
279
280			public function testSplitAt()
281			{
282			$sequence = new Primitive('int', 2, 3, 4, 5);
283			$parts = $sequence->splitAt(2);
284
285			$this->assertSame([2, 3, 4, 5], \iterator_to_array($sequence->iterator()));
286			$this->assertInstanceOf(Sequence::class, $parts);
287			$this->assertTrue($parts->isOfType(Sequence::class));
288			$this->assertCount(2, $parts);
289			$this->assertTrue($parts->first()->isOfType('int'));
290			$this->assertTrue($parts->last()->isOfType('int'));
291			$this->assertSame([2, 3], unwrap($parts->first()));
292			$this->assertSame([4, 5], unwrap($parts->last()));
293			}
294
295			public function testTake()
296			{
297			$a = new Primitive('int', 2, 3, 4);
298			$b = $a->take(2);
299
300			$this->assertSame([2, 3, 4], \iterator_to_array($a->iterator()));
301			$this->assertInstanceOf(Primitive::class, $b);
302			$this->assertSame([2, 3], \iterator_to_array($b->iterator()));
303			}
304
305			public function testTakeEnd()
306			{
307			$a = new Primitive('int', 2, 3, 4);
308			$b = $a->takeEnd(2);
309
310			$this->assertSame([2, 3, 4], \iterator_to_array($a->iterator()));
311			$this->assertInstanceOf(Primitive::class, $b);
312			$this->assertSame([3, 4], \iterator_to_array($b->iterator()));
313			}
314
315			public function testAppend()
316			{
317			$a = new Primitive('int', 1, 2);
318			$b = new Primitive('int', 3, 4);
319			$c = $a->append($b);
320
321			$this->assertSame([1, 2], \iterator_to_array($a->iterator()));
322			$this->assertSame([3, 4], \iterator_to_array($b->iterator()));
323			$this->assertInstanceOf(Primitive::class, $c);
324			$this->assertSame([1, 2, 3, 4], \iterator_to_array($c->iterator()));
325			}
326
327			public function testIntersect()
328			{
329			$a = new Primitive('int', 1, 2);
330			$b = new Primitive('int', 2, 3);
331			$c = $a->intersect($b);
332
333			$this->assertSame([1, 2], \iterator_to_array($a->iterator()));
334			$this->assertSame([2, 3], \iterator_to_array($b->iterator()));
335			$this->assertInstanceOf(Primitive::class, $c);
336			$this->assertSame([2], \iterator_to_array($c->iterator()));
337			}
338
339			public function testAdd()
340			{
341			$a = new Primitive('int', 1);
342			$b = ($a)(2);
343
344			$this->assertSame([1], \iterator_to_array($a->iterator()));
345			$this->assertInstanceOf(Primitive::class, $b);
346			$this->assertSame([1, 2], \iterator_to_array($b->iterator()));
347			}
348
349			public function testSort()
350			{
351			$a = new Primitive('int', 1, 4, 3, 2);
352			$b = $a->sort(fn($a, $b) => $a > $b);
353
354			$this->assertSame([1, 4, 3, 2], \iterator_to_array($a->iterator()));
355			$this->assertInstanceOf(Primitive::class, $b);
356			$this->assertSame([1, 2, 3, 4], \iterator_to_array($b->iterator()));
357			}
358
359			public function testReduce()
360			{
361			$sequence = new Primitive('int', 1, 2, 3, 4);
362
363			$this->assertSame(10, $sequence->reduce(0, fn($sum, $i) => $sum + $i));
364			}
365
366			public function testClear()
367			{
368			$a = new Primitive('int', 1, 2);
369			$b = $a->clear();
370
371			$this->assertSame([1, 2], \iterator_to_array($a->iterator()));
372			$this->assertInstanceOf(Primitive::class, $b);
373			$this->assertSame([], \iterator_to_array($b->iterator()));
374			}
375
376			public function testReverse()
377			{
378			$a = new Primitive('int', 1, 2, 3, 4);
379			$b = $a->reverse();
380
381			$this->assertSame([1, 2, 3, 4], \iterator_to_array($a->iterator()));
382			$this->assertInstanceOf(Primitive::class, $b);
383			$this->assertSame([4, 3, 2, 1], \iterator_to_array($b->iterator()));
384			}
385
386			public function testEmpty()
387			{
388			$this->assertTrue((new Primitive('int'))->empty());
389			$this->assertFalse((new Primitive('int', 1))->empty());
390			}
391
392			public function testToSequenceOf()
393			{
394			$sequence = new Primitive('int', 1, 2, 3);
395			$sequence = $sequence->toSequenceOf('string\|int', function($i) {
396			yield (string) $i;
397			yield $i;
398			});
399
400			$this->assertInstanceOf(Sequence::class, $sequence);
401			$this->assertSame(
402			['1', 1, '2', 2, '3', 3],
403			unwrap($sequence),
404			);
405			}
406
407			public function testToSetOf()
408			{
409			$sequence = new Primitive('int', 1, 2, 3);
410			$set = $sequence->toSetOf('string\|int', function($i) {
411			yield (string) $i;
412			yield $i;
413			});
414
415			$this->assertInstanceOf(Set::class, $set);
416			$this->assertSame(
417			['1', 1, '2', 2, '3', 3],
418			unwrap($set),
419			);
420			}
421
422			public function testToMapOf()
423			{
424			$sequence = new Primitive('int', 1, 2, 3);
425			$map = $sequence->toMapOf('string', 'int', fn($i) => yield (string) $i => $i);
426
427			$this->assertInstanceOf(Map::class, $map);
428			$this->assertCount(3, $map);
429			$this->assertSame(1, $map->get('1'));
430			$this->assertSame(2, $map->get('2'));
431			$this->assertSame(3, $map->get('3'));
432			}
433			}
434

Innmind / Immutable

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testThrowWhenTryingToAccessFirstElementOnEmptySequence() A

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