DusanKasan /
Knapsack
| @@ 137-166 (lines=30) @@ | ||
| 134 | ->shouldReturn([2, 4, 4, 3]); |
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| 135 | } |
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| 136 | ||
| 137 | function it_can_reduce() |
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| 138 | { |
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| 139 | $this |
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| 140 | ->reduce( |
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| 141 | function ($temp, $item) { |
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| 142 | return $temp + $item; |
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| 143 | }, |
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| 144 | 0 |
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| 145 | ) |
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| 146 | ->shouldReturn(9); |
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| 147 | ||
| 148 | $this |
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| 149 | ->reduce( |
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| 150 | function ($temp, $item, $key) { |
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| 151 | return $temp + $key + $item; |
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| 152 | }, |
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| 153 | 0 |
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| 154 | ) |
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| 155 | ->shouldReturn(15); |
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| 156 | ||
| 157 | $this |
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| 158 | ->reduce( |
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| 159 | function (Collection $temp, $item) { |
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| 160 | return $temp->append($item); |
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| 161 | }, |
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| 162 | new Collection([]) |
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| 163 | ) |
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| 164 | ->toArray() |
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| 165 | ->shouldReturn([1, 3, 3, 2]); |
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| 166 | } |
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| 167 | ||
| 168 | function it_can_flatten() |
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| 169 | { |
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| @@ 431-460 (lines=30) @@ | ||
| 428 | $it->valid()->shouldReturn(false); |
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| 429 | } |
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| 430 | ||
| 431 | function it_can_reduce_from_right() |
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| 432 | { |
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| 433 | $this |
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| 434 | ->reduceRight( |
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| 435 | function ($temp, $e) { |
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| 436 | return $temp . $e; |
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| 437 | }, |
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| 438 | 0 |
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| 439 | ) |
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| 440 | ->shouldReturn('02331'); |
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| 441 | ||
| 442 | $this |
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| 443 | ->reduceRight( |
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| 444 | function ($temp, $key, $item) { |
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| 445 | return $temp + $key + $item; |
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| 446 | }, |
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| 447 | 0 |
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| 448 | ) |
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| 449 | ->shouldReturn(15); |
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| 450 | ||
| 451 | $this |
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| 452 | ->reduceRight( |
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| 453 | function (Collection $temp, $item) { |
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| 454 | return $temp->append($item); |
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| 455 | }, |
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| 456 | new Collection([]) |
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| 457 | ) |
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| 458 | ->toArray() |
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| 459 | ->shouldReturn([2, 3, 3, 1]); |
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| 460 | } |
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| 461 | ||
| 462 | function it_can_return_only_first_x_elements() |
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| 463 | { |
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