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[Arrays] Function that returns elements from given level

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Meritoo
2022-02-05 19:50:36 +01:00
parent 151ce39226
commit 067be1ab1d
3 changed files with 151 additions and 0 deletions
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110
tests/Utilities/ArraysTest.php
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@@ -1535,6 +1535,116 @@ letsTest[2] = value_2;';
static::assertSame($expected, Arrays::containsEmptyStringsOnly($array));
}
public function testGetElementsFromLevelIfArrayIsEmpty(): void
{
self::assertNull(Arrays::getElementsFromLevel([], -1));
self::assertNull(Arrays::getElementsFromLevel([], 0));
self::assertNull(Arrays::getElementsFromLevel([], 1));
}
public function testGetElementsFromLevelIfThereIsNoGivenLevel(): void
{
self::assertSame([], Arrays::getElementsFromLevel([1, 2, 3], 9999));
}
public function testGetElementsFromLevelIfGivenLevelIsNotPositiveValue(): void
{
self::assertNull(Arrays::getElementsFromLevel([1, 2, 3], -1));
self::assertNull(Arrays::getElementsFromLevel([1, 2, 3], 0));
}
public function testGetElementsFromLevelIfArrayHasOneLevelOnly(): void
{
$array = [
// Level 1:
'ab',
'cd',
'ef',
];
self::assertSame($array, Arrays::getElementsFromLevel($array, 1));
}
public function testGetElementsFromLevel(): void
{
$array = [
// Level 1:
'ab',
[
// Level 2:
'cd',
'ef',
],
// Level 1:
[
// Level 2:
'gh',
[
// Level 3:
'ij',
'kl',
],
],
// Level 1:
[
// Level 2:
[
// Level 3:
'mn',
'op',
],
],
];
$expectedLevel1 = [
'ab',
[
'cd',
'ef',
],
[
'gh',
[
'ij',
'kl',
],
],
[
[
'mn',
'op',
],
],
];
$expectedLevel2 = [
'cd',
'ef',
'gh',
[
'ij',
'kl',
],
[
'mn',
'op',
],
];
$expectedLevel3 = [
'ij',
'kl',
'mn',
'op',
];
self::assertSame($expectedLevel1, Arrays::getElementsFromLevel($array, 1));
self::assertSame($expectedLevel2, Arrays::getElementsFromLevel($array, 2));
self::assertSame($expectedLevel3, Arrays::getElementsFromLevel($array, 3));
}
/**
* Provides simple array to set/replace values with keys
*