KeysetPaginatorTest.php$1 ➔ onePageDataProvider() - Code Metrics - Inspection of "Merge pull request #24 from kamarton/21-paginator-..." - yiisoft/data - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 992a8b...7dffb9 )

by Alexander

created 2019-09-28 21:12 UTC

KeysetPaginatorTest.php$1 ➔ onePageDataProvider() A

↳ Parent: KeysetPaginatorTest

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
c	0
b	0
f	0
dl	0
loc	19
rs	9.6333
cc	1

<?php
declare(strict_types=1);

namespace Yiisoft\Data\Tests\Paginator;

use Yiisoft\Data\Paginator\KeysetPaginator;
use Yiisoft\Data\Paginator\PaginatorInterface;
use Yiisoft\Data\Reader\IterableDataReader;
use Yiisoft\Data\Reader\Filter\FilterInterface;
use Yiisoft\Data\Reader\DataReaderInterface;
use Yiisoft\Data\Reader\FilterableDataInterface;
use Yiisoft\Data\Reader\Sort;
use Yiisoft\Data\Tests\TestCase;

final class KeysetPaginatorTest extends Testcase
{
    private function getDataSet(): array
    {
        return [
            [
                'id' => 1,
                'name' => 'Codename Boris',
            ],
            [
                'id' => 2,
                'name' => 'Codename Doris',
            ],
            [
                'id' => 3,
                'name' => 'Agent K',
            ],
            [
                'id' => 5,
                'name' => 'Agent J',
            ],
            [
                'id' => 6,
                'name' => '007',
            ],
        ];
    }

    public function testDataReaderWithoutFilterableInterface(): void
    {
        $nonFilterableDataReader = new class implements DataReaderInterface
        {
            public function withLimit(int $limit)
            {
                // do nothing
            }

            public function read(): iterable
            {
                return [];
            }
        };

        $this->expectException(\InvalidArgumentException::class);

        new KeysetPaginator($nonFilterableDataReader);
    }

    public function testDataReaderWithoutSortableInterface(): void
    {
        $nonSortableDataReader = new class implements DataReaderInterface, FilterableDataInterface
        {
            public function withLimit(int $limit)
            {
                // do nothing
            }

            public function read(): iterable
            {
                return [];
            }

            public function withFilter(FilterInterface $filter)
            {
                // do nothing
            }
        };

        $this->expectException(\InvalidArgumentException::class);

        new KeysetPaginator($nonSortableDataReader);
    }

    public function testPageSizeCannotBeLessThanOne(): void
    {
        $sort = new Sort(['id', 'name']);
        $dataReader = (new IterableDataReader($this->getDataSet()))
            ->withSort($sort);
        $paginator = new KeysetPaginator($dataReader);

        $this->expectException(\InvalidArgumentException::class);
        $paginator->withPageSize(0);
    }

    public function testThrowsExceptionWhenReaderHasNoSort(): void
    {
        $dataReader = new IterableDataReader($this->getDataSet());

        $this->expectException(\RuntimeException::class);

        new KeysetPaginator($dataReader);
    }

    public function testThrowsExceptionWhenNotSorted(): void
    {
        $sort = new Sort(['id', 'name']);

        $dataReader = (new IterableDataReader($this->getDataSet()))
            ->withSort($sort);

        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize(2)
            ->withNextPageToken("3");

        $this->expectException(\RuntimeException::class);

        $this->iterableToArray($paginator->read());
    }

    /**
     * @dataProvider onePageDataProvider
     */
    public function testOnePage(array $dataSet, int $pageSize): void
    {
        $sort = (new Sort(['id', 'name']))->withOrderString('id');

        $dataReader = (new IterableDataReader($dataSet))
            ->withSort($sort);
        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize($pageSize);
        $this->assertTrue($paginator->isOnFirstPage());
        $this->assertTrue($paginator->isOnLastPage());
    }

    public function onePageDataProvider() {
        return [
            [[], 1],
            [[], 2],
            [[], 3],

            [array_slice($this->getDataSet(), 0, 1), 1],

            [array_slice($this->getDataSet(), 0, 1), 2],
            [array_slice($this->getDataSet(), 0, 2), 2],

            [array_slice($this->getDataSet(), 0, 1), 3],
            [array_slice($this->getDataSet(), 0, 2), 3],
            [array_slice($this->getDataSet(), 0, 3), 3],

            [array_slice($this->getDataSet(), 0, 1), 4],
            [array_slice($this->getDataSet(), 0, 2), 4],
            [array_slice($this->getDataSet(), 0, 3), 4],
            [array_slice($this->getDataSet(), 0, 4), 4],
        ];
    }

    public function testReadFirstPage(): void
    {
        $sort = (new Sort(['id', 'name']))->withOrderString('id');

        $dataReader = (new IterableDataReader($this->getDataSet()))
            ->withSort($sort);


        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize(2);

        $expected = [
            [
                'id' => 1,
                'name' => 'Codename Boris',
            ],
            [
                'id' => 2,
                'name' => 'Codename Doris',
            ],
        ];

        $this->assertSame($expected, $this->iterableToArray($paginator->read()));
        $last = end($expected);
        $this->assertSame((string)$last['id'], $paginator->getNextPageToken());
        $this->assertSame(true, $paginator->isOnFirstPage());
    }

    public function testReadSecondPage(): void
    {
        $sort = (new Sort(['id', 'name']))->withOrderString('id');

        $dataReader = (new IterableDataReader($this->getDataSet()))
            ->withSort($sort);

        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize(2)
            ->withNextPageToken("2");

        $expected = [
            [
                'id' => 3,
                'name' => 'Agent K',
            ],
            [
                'id' => 5,
                'name' => 'Agent J',
            ],
        ];

        $this->assertSame($expected, $this->iterableToArray($paginator->read()));
        $last = end($expected);
        $this->assertSame((string)$last['id'], $paginator->getNextPageToken());
    }

    public function testReadSecondPageOrderedByName(): void
    {
        $sort = (new Sort(['id', 'name']))->withOrderString('name');

        $dataReader = (new IterableDataReader($this->getDataSet()))
            ->withSort($sort);

        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize(2)
            ->withNextPageToken('Agent J');

        $expected = [
            [
                'id' => 3,
                'name' => 'Agent K',
            ],
            [
                'id' => 1,
                'name' => 'Codename Boris',
            ],
        ];

        $this->assertSame($expected, $this->iterableToArray($paginator->read()));
        $last = end($expected);
        $this->assertSame((string)$last['name'], $paginator->getNextPageToken());
    }

    public function testBackwardPagination(): void
    {
        $sort = (new Sort(['id', 'name']))->withOrderString('id');

        $dataReader = (new IterableDataReader($this->getDataSet()))
            ->withSort($sort);

        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize(2)
            ->withPreviousPageToken("5");

        $expected = [
            [
                'id' => 2,
                'name' => 'Codename Doris',
            ],
            [
                'id' => 3,
                'name' => 'Agent K',
            ],
        ];
        $this->assertSame($expected, $this->iterableToArray($paginator->read()));
        $first = reset($expected);
        $last = end($expected);
        $this->assertSame((string)$last['id'], $paginator->getNextPageToken(), 'Last value fail!');
        $this->assertSame((string)$first['id'], $paginator->getPreviousPageToken(), 'First value fail!');
    }

    public function testForwardAndBackwardPagination(): void
    {
        $sort = (new Sort(['id', 'name']))->withOrderString('id');

        $dataReader = (new IterableDataReader($this->getDataSet()))
            ->withSort($sort);

        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize(2)
            ->withNextPageToken("2");

        $expected = [
            [
                'id' => 3,
                'name' => 'Agent K',
            ],
            [
                'id' => 5,
                'name' => 'Agent J',
            ],
        ];
        $this->assertSame($expected, $this->iterableToArray($paginator->read()));
        $first = reset($expected);
        $last = end($expected);
        $this->assertSame((string)$last['id'], $paginator->getNextPageToken(), 'Last value fail!');
        $this->assertSame((string)$first['id'], $paginator->getPreviousPageToken(), 'First value fail!');

        $expected = [
            [
                'id' => 1,
                'name' => 'Codename Boris',
            ],
            [
                'id' => 2,
                'name' => 'Codename Doris',
            ],
        ];

        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize(2)
            ->withPreviousPageToken($paginator->getPreviousPageToken());

        $this->assertSame($expected, $this->iterableToArray($paginator->read()));
        $last = end($expected);
        $this->assertSame((string)$last['id'], $paginator->getNextPageToken(), 'Last value fail!');
        $this->assertNull($paginator->getPreviousPageToken(), 'First value fail!');
    }

    public function testIsOnFirstPage(): void
    {
        $sort = (new Sort(['id']))->withOrderString('id');
        $dataReader = (new IterableDataReader($this->getDataSet()))
            ->withSort($sort);
        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize(2);
        $this->assertSame(true, $paginator->isOnFirstPage());
    }

    public function testIsOnLastPage(): void
    {
        $sort = (new Sort(['id']))->withOrderString('id');
        $dataReader = (new IterableDataReader($this->getDataSet()))
            ->withSort($sort);
        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize(2);

        $paginator = $paginator->withNextPageToken("6");
        $this->assertSame(true, $paginator->isOnLastPage());
        $paginator = $paginator->withNextPageToken("5");
        $this->assertSame(true, $paginator->isOnLastPage());
        $paginator = $paginator->withNextPageToken("4");
        $this->assertSame(true, $paginator->isOnLastPage());
        $paginator = $paginator->withNextPageToken("3");
        $this->assertSame(true, $paginator->isOnLastPage());
        $paginator = $paginator->withNextPageToken("2");
        $this->assertSame(false, $paginator->isOnLastPage());
    }

    public function testCurrentPageSize(): void
    {
        $sort = (new Sort(['id']))->withOrderString('id');
        $dataReader = (new IterableDataReader($this->getDataSet()))
            ->withSort($sort);
        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize(2);
        $this->assertSame(2, $paginator->getCurrentPageSize());
        $paginator = $paginator->withPreviousPageToken("1");
        $this->assertSame(0, $paginator->getCurrentPageSize());
        $paginator = $paginator->withPreviousPageToken("2");
        $this->assertSame(1, $paginator->getCurrentPageSize());
        $paginator = $paginator->withPreviousPageToken("3");
        $this->assertSame(2, $paginator->getCurrentPageSize());

        $paginator = $paginator->withNextPageToken("6");
        $this->assertSame(0, $paginator->getCurrentPageSize());
        $paginator = $paginator->withNextPageToken("5");
        $this->assertSame(1, $paginator->getCurrentPageSize());
        $paginator = $paginator->withNextPageToken("4");
        $this->assertSame(2, $paginator->getCurrentPageSize());
    }

    public function testReadCache()
    {
        $sort = (new Sort(['id']))->withOrderString('id');
        $dataSet = new class($this->getDataSet()) extends \ArrayIterator
        {
            private $rewindCounter = 0;

            public function rewind()
            {
                $this->rewindCounter++;
                parent::rewind();
            }

            public function getRewindCounter(): int
            {
                return $this->rewindCounter;
            }
        };
        $dataReader = (new IterableDataReader($dataSet))->withSort($sort);
        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize(2);
        // not use datase test
        $this->assertSame(0, $dataSet->getRewindCounter());
        // first use dataset test
        $paginator->getCurrentPageSize();
        $this->assertSame(1, $dataSet->getRewindCounter());
        // repeated use dataset test
        $paginator->getCurrentPageSize();
        $this->assertSame(1, $dataSet->getRewindCounter());
        $paginator->isOnFirstPage();
        $this->assertSame(1, $dataSet->getRewindCounter());
        $paginator->isOnLastPage();
        $this->assertSame(1, $dataSet->getRewindCounter());
        foreach ($paginator->read() as $void) ;
        $this->assertSame(1, $dataSet->getRewindCounter());
        // clear cache test
        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize(3);
        $this->assertSame(1, $dataSet->getRewindCounter());
        // recreate cache
        $paginator->getCurrentPageSize();
        $this->assertSame(2, $dataSet->getRewindCounter());
        $paginator->getCurrentPageSize();
        $this->assertSame(2, $dataSet->getRewindCounter());
    }

    public function testTokenResults(): void
    {
        $sort = (new Sort(['id']))->withOrderString('id');
        $dataReader = (new IterableDataReader($this->getDataSet()))
            ->withSort($sort);
        $paginator = (new KeysetPaginator($dataReader))
            ->withPageSize(2);
        $this->assertNotNull($paginator->getNextPageToken());
        $paginator = $paginator->withPreviousPageToken("1");
        try {
            $paginator->getNextPageToken();
            $this->assertTrue(false);
        } catch (\RuntimeException $e) {
            $this->assertTrue(true);
        }
        $this->assertNull($paginator->getPreviousPageToken());
        $paginator = $paginator->withPreviousPageToken("2");
        $this->assertNotNull($paginator->getNextPageToken());
        $this->assertSame("1", $paginator->getNextPageToken());
        $this->assertNull($paginator->getPreviousPageToken());
        $paginator = $paginator->withPreviousPageToken("3");
        $this->assertNotNull($paginator->getNextPageToken());
        $this->assertSame("2", $paginator->getNextPageToken());
        $this->assertNull($paginator->getPreviousPageToken());

        $paginator = $paginator->withNextPageToken("6");
        try {
            $paginator->getPreviousPageToken();
            $this->assertTrue(false);
        } catch (\RuntimeException $e) {
            $this->assertTrue(true);
        }
        $this->assertNull($paginator->getNextPageToken());
        $paginator = $paginator->withNextPageToken("5");
        $this->assertNotNull($paginator->getPreviousPageToken());
        $this->assertSame("6", $paginator->getPreviousPageToken());
        $this->assertNull($paginator->getNextPageToken());
        $paginator = $paginator->withNextPageToken("4");
        $this->assertNull($paginator->getNextPageToken());
        $this->assertNotNull($paginator->getPreviousPageToken());
        $this->assertSame("5", $paginator->getPreviousPageToken());
    }

}


1			<?php
2			declare(strict_types=1);
3
4			namespace Yiisoft\Data\Tests\Paginator;
5
6			use Yiisoft\Data\Paginator\KeysetPaginator;
7			use Yiisoft\Data\Paginator\PaginatorInterface;
8			use Yiisoft\Data\Reader\IterableDataReader;
9			use Yiisoft\Data\Reader\Filter\FilterInterface;
10			use Yiisoft\Data\Reader\DataReaderInterface;
11			use Yiisoft\Data\Reader\FilterableDataInterface;
12			use Yiisoft\Data\Reader\Sort;
13			use Yiisoft\Data\Tests\TestCase;
14
15			final class KeysetPaginatorTest extends Testcase
16			{
17			private function getDataSet(): array
18			{
19			return [
20			[
21			'id' => 1,
22			'name' => 'Codename Boris',
23			],
24			[
25			'id' => 2,
26			'name' => 'Codename Doris',
27			],
28			[
29			'id' => 3,
30			'name' => 'Agent K',
31			],
32			[
33			'id' => 5,
34			'name' => 'Agent J',
35			],
36			[
37			'id' => 6,
38			'name' => '007',
39			],
40			];
41			}
42
43			public function testDataReaderWithoutFilterableInterface(): void
44			{
45			$nonFilterableDataReader = new class implements DataReaderInterface
46			{
47			public function withLimit(int $limit)
48			{
49			// do nothing
50			}
51
52			public function read(): iterable
53			{
54			return [];
55			}
56			};
57
58			$this->expectException(\InvalidArgumentException::class);
59
60			new KeysetPaginator($nonFilterableDataReader);
61			}
62
63			public function testDataReaderWithoutSortableInterface(): void
64			{
65			$nonSortableDataReader = new class implements DataReaderInterface, FilterableDataInterface
66			{
67			public function withLimit(int $limit)
68			{
69			// do nothing
70			}
71
72			public function read(): iterable
73			{
74			return [];
75			}
76
77			public function withFilter(FilterInterface $filter)
78			{
79			// do nothing
80			}
81			};
82
83			$this->expectException(\InvalidArgumentException::class);
84
85			new KeysetPaginator($nonSortableDataReader);
86			}
87
88			public function testPageSizeCannotBeLessThanOne(): void
89			{
90			$sort = new Sort(['id', 'name']);
91			$dataReader = (new IterableDataReader($this->getDataSet()))
92			->withSort($sort);
93			$paginator = new KeysetPaginator($dataReader);
94
95			$this->expectException(\InvalidArgumentException::class);
96			$paginator->withPageSize(0);
97			}
98
99			public function testThrowsExceptionWhenReaderHasNoSort(): void
100			{
101			$dataReader = new IterableDataReader($this->getDataSet());
102
103			$this->expectException(\RuntimeException::class);
104
105			new KeysetPaginator($dataReader);
106			}
107
108			public function testThrowsExceptionWhenNotSorted(): void
109			{
110			$sort = new Sort(['id', 'name']);
111
112			$dataReader = (new IterableDataReader($this->getDataSet()))
113			->withSort($sort);
114
115			$paginator = (new KeysetPaginator($dataReader))
116			->withPageSize(2)
117			->withNextPageToken("3");
118
119			$this->expectException(\RuntimeException::class);
120
121			$this->iterableToArray($paginator->read());
122			}
123
124			/**
125			* @dataProvider onePageDataProvider
126			*/
127			public function testOnePage(array $dataSet, int $pageSize): void
128			{
129			$sort = (new Sort(['id', 'name']))->withOrderString('id');
130
131			$dataReader = (new IterableDataReader($dataSet))
132			->withSort($sort);
133			$paginator = (new KeysetPaginator($dataReader))
134			->withPageSize($pageSize);
135			$this->assertTrue($paginator->isOnFirstPage());
136			$this->assertTrue($paginator->isOnLastPage());
137			}
138
139			public function onePageDataProvider() {
140			return [
141			[[], 1],
142			[[], 2],
143			[[], 3],
144
145			[array_slice($this->getDataSet(), 0, 1), 1],
146
147			[array_slice($this->getDataSet(), 0, 1), 2],
148			[array_slice($this->getDataSet(), 0, 2), 2],
149
150			[array_slice($this->getDataSet(), 0, 1), 3],
151			[array_slice($this->getDataSet(), 0, 2), 3],
152			[array_slice($this->getDataSet(), 0, 3), 3],
153
154			[array_slice($this->getDataSet(), 0, 1), 4],
155			[array_slice($this->getDataSet(), 0, 2), 4],
156			[array_slice($this->getDataSet(), 0, 3), 4],
157			[array_slice($this->getDataSet(), 0, 4), 4],
158			];
159			}
160
161			public function testReadFirstPage(): void
162			{
163			$sort = (new Sort(['id', 'name']))->withOrderString('id');
164
165			$dataReader = (new IterableDataReader($this->getDataSet()))
166			->withSort($sort);
167
168
169			$paginator = (new KeysetPaginator($dataReader))
170			->withPageSize(2);
171
172			$expected = [
173			[
174			'id' => 1,
175			'name' => 'Codename Boris',
176			],
177			[
178			'id' => 2,
179			'name' => 'Codename Doris',
180			],
181			];
182
183			$this->assertSame($expected, $this->iterableToArray($paginator->read()));
184			$last = end($expected);
185			$this->assertSame((string)$last['id'], $paginator->getNextPageToken());
186			$this->assertSame(true, $paginator->isOnFirstPage());
187			}
188
189			public function testReadSecondPage(): void
190			{
191			$sort = (new Sort(['id', 'name']))->withOrderString('id');
192
193			$dataReader = (new IterableDataReader($this->getDataSet()))
194			->withSort($sort);
195
196			$paginator = (new KeysetPaginator($dataReader))
197			->withPageSize(2)
198			->withNextPageToken("2");
199
200			$expected = [
201			[
202			'id' => 3,
203			'name' => 'Agent K',
204			],
205			[
206			'id' => 5,
207			'name' => 'Agent J',
208			],
209			];
210
211			$this->assertSame($expected, $this->iterableToArray($paginator->read()));
212			$last = end($expected);
213			$this->assertSame((string)$last['id'], $paginator->getNextPageToken());
214			}
215
216			public function testReadSecondPageOrderedByName(): void
217			{
218			$sort = (new Sort(['id', 'name']))->withOrderString('name');
219
220			$dataReader = (new IterableDataReader($this->getDataSet()))
221			->withSort($sort);
222
223			$paginator = (new KeysetPaginator($dataReader))
224			->withPageSize(2)
225			->withNextPageToken('Agent J');
226
227			$expected = [
228			[
229			'id' => 3,
230			'name' => 'Agent K',
231			],
232			[
233			'id' => 1,
234			'name' => 'Codename Boris',
235			],
236			];
237
238			$this->assertSame($expected, $this->iterableToArray($paginator->read()));
239			$last = end($expected);
240			$this->assertSame((string)$last['name'], $paginator->getNextPageToken());
241			}
242
243			public function testBackwardPagination(): void
244			{
245			$sort = (new Sort(['id', 'name']))->withOrderString('id');
246
247			$dataReader = (new IterableDataReader($this->getDataSet()))
248			->withSort($sort);
249
250			$paginator = (new KeysetPaginator($dataReader))
251			->withPageSize(2)
252			->withPreviousPageToken("5");
253
254			$expected = [
255			[
256			'id' => 2,
257			'name' => 'Codename Doris',
258			],
259			[
260			'id' => 3,
261			'name' => 'Agent K',
262			],
263			];
264			$this->assertSame($expected, $this->iterableToArray($paginator->read()));
265			$first = reset($expected);
266			$last = end($expected);
267			$this->assertSame((string)$last['id'], $paginator->getNextPageToken(), 'Last value fail!');
268			$this->assertSame((string)$first['id'], $paginator->getPreviousPageToken(), 'First value fail!');
269			}
270
271			public function testForwardAndBackwardPagination(): void
272			{
273			$sort = (new Sort(['id', 'name']))->withOrderString('id');
274
275			$dataReader = (new IterableDataReader($this->getDataSet()))
276			->withSort($sort);
277
278			$paginator = (new KeysetPaginator($dataReader))
279			->withPageSize(2)
280			->withNextPageToken("2");
281
282			$expected = [
283			[
284			'id' => 3,
285			'name' => 'Agent K',
286			],
287			[
288			'id' => 5,
289			'name' => 'Agent J',
290			],
291			];
292			$this->assertSame($expected, $this->iterableToArray($paginator->read()));
293			$first = reset($expected);
294			$last = end($expected);
295			$this->assertSame((string)$last['id'], $paginator->getNextPageToken(), 'Last value fail!');
296			$this->assertSame((string)$first['id'], $paginator->getPreviousPageToken(), 'First value fail!');
297
298			$expected = [
299			[
300			'id' => 1,
301			'name' => 'Codename Boris',
302			],
303			[
304			'id' => 2,
305			'name' => 'Codename Doris',
306			],
307			];
308
309			$paginator = (new KeysetPaginator($dataReader))
310			->withPageSize(2)
311			->withPreviousPageToken($paginator->getPreviousPageToken());
312
313			$this->assertSame($expected, $this->iterableToArray($paginator->read()));
314			$last = end($expected);
315			$this->assertSame((string)$last['id'], $paginator->getNextPageToken(), 'Last value fail!');
316			$this->assertNull($paginator->getPreviousPageToken(), 'First value fail!');
317			}
318
319			public function testIsOnFirstPage(): void
320			{
321			$sort = (new Sort(['id']))->withOrderString('id');
322			$dataReader = (new IterableDataReader($this->getDataSet()))
323			->withSort($sort);
324			$paginator = (new KeysetPaginator($dataReader))
325			->withPageSize(2);
326			$this->assertSame(true, $paginator->isOnFirstPage());
327			}
328
329			public function testIsOnLastPage(): void
330			{
331			$sort = (new Sort(['id']))->withOrderString('id');
332			$dataReader = (new IterableDataReader($this->getDataSet()))
333			->withSort($sort);
334			$paginator = (new KeysetPaginator($dataReader))
335			->withPageSize(2);
336
337			$paginator = $paginator->withNextPageToken("6");
338			$this->assertSame(true, $paginator->isOnLastPage());
339			$paginator = $paginator->withNextPageToken("5");
340			$this->assertSame(true, $paginator->isOnLastPage());
341			$paginator = $paginator->withNextPageToken("4");
342			$this->assertSame(true, $paginator->isOnLastPage());
343			$paginator = $paginator->withNextPageToken("3");
344			$this->assertSame(true, $paginator->isOnLastPage());
345			$paginator = $paginator->withNextPageToken("2");
346			$this->assertSame(false, $paginator->isOnLastPage());
347			}
348
349			public function testCurrentPageSize(): void
350			{
351			$sort = (new Sort(['id']))->withOrderString('id');
352			$dataReader = (new IterableDataReader($this->getDataSet()))
353			->withSort($sort);
354			$paginator = (new KeysetPaginator($dataReader))
355			->withPageSize(2);
356			$this->assertSame(2, $paginator->getCurrentPageSize());
357			$paginator = $paginator->withPreviousPageToken("1");
358			$this->assertSame(0, $paginator->getCurrentPageSize());
359			$paginator = $paginator->withPreviousPageToken("2");
360			$this->assertSame(1, $paginator->getCurrentPageSize());
361			$paginator = $paginator->withPreviousPageToken("3");
362			$this->assertSame(2, $paginator->getCurrentPageSize());
363
364			$paginator = $paginator->withNextPageToken("6");
365			$this->assertSame(0, $paginator->getCurrentPageSize());
366			$paginator = $paginator->withNextPageToken("5");
367			$this->assertSame(1, $paginator->getCurrentPageSize());
368			$paginator = $paginator->withNextPageToken("4");
369			$this->assertSame(2, $paginator->getCurrentPageSize());
370			}
371
372			public function testReadCache()
373			{
374			$sort = (new Sort(['id']))->withOrderString('id');
375			$dataSet = new class($this->getDataSet()) extends \ArrayIterator
376			{
377			private $rewindCounter = 0;
378
379			public function rewind()
380			{
381			$this->rewindCounter++;
382			parent::rewind();
383			}
384
385			public function getRewindCounter(): int
386			{
387			return $this->rewindCounter;
388			}
389			};
390			$dataReader = (new IterableDataReader($dataSet))->withSort($sort);
391			$paginator = (new KeysetPaginator($dataReader))
392			->withPageSize(2);
393			// not use datase test
394			$this->assertSame(0, $dataSet->getRewindCounter());
395			// first use dataset test
396			$paginator->getCurrentPageSize();
397			$this->assertSame(1, $dataSet->getRewindCounter());
398			// repeated use dataset test
399			$paginator->getCurrentPageSize();
400			$this->assertSame(1, $dataSet->getRewindCounter());
401			$paginator->isOnFirstPage();
402			$this->assertSame(1, $dataSet->getRewindCounter());
403			$paginator->isOnLastPage();
404			$this->assertSame(1, $dataSet->getRewindCounter());
405			foreach ($paginator->read() as $void) ;
406			$this->assertSame(1, $dataSet->getRewindCounter());
407			// clear cache test
408			$paginator = (new KeysetPaginator($dataReader))
409			->withPageSize(3);
410			$this->assertSame(1, $dataSet->getRewindCounter());
411			// recreate cache
412			$paginator->getCurrentPageSize();
413			$this->assertSame(2, $dataSet->getRewindCounter());
414			$paginator->getCurrentPageSize();
415			$this->assertSame(2, $dataSet->getRewindCounter());
416			}
417
418			public function testTokenResults(): void
419			{
420			$sort = (new Sort(['id']))->withOrderString('id');
421			$dataReader = (new IterableDataReader($this->getDataSet()))
422			->withSort($sort);
423			$paginator = (new KeysetPaginator($dataReader))
424			->withPageSize(2);
425			$this->assertNotNull($paginator->getNextPageToken());
426			$paginator = $paginator->withPreviousPageToken("1");
427			try {
428			$paginator->getNextPageToken();
429			$this->assertTrue(false);
430			} catch (\RuntimeException $e) {
431			$this->assertTrue(true);
432			}
433			$this->assertNull($paginator->getPreviousPageToken());
434			$paginator = $paginator->withPreviousPageToken("2");
435			$this->assertNotNull($paginator->getNextPageToken());
436			$this->assertSame("1", $paginator->getNextPageToken());
437			$this->assertNull($paginator->getPreviousPageToken());
438			$paginator = $paginator->withPreviousPageToken("3");
439			$this->assertNotNull($paginator->getNextPageToken());
440			$this->assertSame("2", $paginator->getNextPageToken());
441			$this->assertNull($paginator->getPreviousPageToken());
442
443			$paginator = $paginator->withNextPageToken("6");
444			try {
445			$paginator->getPreviousPageToken();
446			$this->assertTrue(false);
447			} catch (\RuntimeException $e) {
448			$this->assertTrue(true);
449			}
450			$this->assertNull($paginator->getNextPageToken());
451			$paginator = $paginator->withNextPageToken("5");
452			$this->assertNotNull($paginator->getPreviousPageToken());
453			$this->assertSame("6", $paginator->getPreviousPageToken());
454			$this->assertNull($paginator->getNextPageToken());
455			$paginator = $paginator->withNextPageToken("4");
456			$this->assertNull($paginator->getNextPageToken());
457			$this->assertNotNull($paginator->getPreviousPageToken());
458			$this->assertSame("5", $paginator->getPreviousPageToken());
459			}
460
461			}
462

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KeysetPaginatorTest.php$1 ➔ onePageDataProvider() A

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