DusanKasan /
Knapsack
| @@ 144-175 (lines=32) @@ | ||
| 141 | ->shouldReturn([2, 4, 4, 3]); |
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| 142 | } |
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| 143 | ||
| 144 | function it_can_reduce() |
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| 145 | { |
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| 146 | $this->beConstructedWith([1, 3, 3, 2,]); |
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| 147 | ||
| 148 | $this |
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| 149 | ->reduce( |
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| 150 | function ($temp, $item) { |
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| 151 | return $temp + $item; |
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| 152 | }, |
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| 153 | 0 |
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| 154 | ) |
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| 155 | ->shouldReturn(9); |
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| 156 | ||
| 157 | $this |
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| 158 | ->reduce( |
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| 159 | function ($temp, $item, $key) { |
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| 160 | return $temp + $key + $item; |
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| 161 | }, |
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| 162 | 0 |
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| 163 | ) |
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| 164 | ->shouldReturn(15); |
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| 165 | ||
| 166 | $this |
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| 167 | ->reduce( |
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| 168 | function (Collection $temp, $item) { |
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| 169 | return $temp->append($item); |
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| 170 | }, |
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| 171 | new Collection([]) |
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| 172 | ) |
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| 173 | ->toArray() |
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| 174 | ->shouldReturn([1, 3, 3, 2]); |
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| 175 | } |
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| 176 | ||
| 177 | function it_can_flatten() |
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| 178 | { |
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| @@ 468-499 (lines=32) @@ | ||
| 465 | $collection->valid()->shouldReturn(false); |
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| 466 | } |
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| 467 | ||
| 468 | function it_can_reduce_from_right() |
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| 469 | { |
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| 470 | $this->beConstructedWith([1, 3, 3, 2,]); |
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| 471 | ||
| 472 | $this |
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| 473 | ->reduceRight( |
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| 474 | function ($temp, $e) { |
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| 475 | return $temp . $e; |
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| 476 | }, |
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| 477 | 0 |
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| 478 | ) |
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| 479 | ->shouldReturn('02331'); |
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| 480 | ||
| 481 | $this |
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| 482 | ->reduceRight( |
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| 483 | function ($temp, $key, $item) { |
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| 484 | return $temp + $key + $item; |
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| 485 | }, |
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| 486 | 0 |
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| 487 | ) |
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| 488 | ->shouldReturn(15); |
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| 489 | ||
| 490 | $this |
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| 491 | ->reduceRight( |
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| 492 | function (Collection $temp, $item) { |
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| 493 | return $temp->append($item); |
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| 494 | }, |
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| 495 | new Collection([]) |
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| 496 | ) |
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| 497 | ->toArray() |
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| 498 | ->shouldReturn([2, 3, 3, 1]); |
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| 499 | } |
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| 500 | ||
| 501 | function it_can_return_only_first_x_elements() |
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| 502 | { |
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