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Add arrayOf() function to Arrays #5

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Merged
pyldin601 merged 2 commits into from
Oct 15, 2016
Merged

Add arrayOf() function to Arrays #5

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5ccaf8f
rename constants, fix comments
pyldin601 Oct 15, 2016
cecf30a
add arrayOf function
pyldin601 Oct 15, 2016
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41 changes: 26 additions & 15 deletions src/Nerd/Common/Arrays.php
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Original file line number Diff line number Diff line change
Expand Up @@ -2,30 +2,30 @@

namespace Nerd\Common\Arrays;

const USE_VALUE = 0;
const USE_KEY = 1;
const USE_BOTH = 2;
const TEST_VALUE = 0;
const TEST_KEY = 1;
const TEST_BOTH = 2;

/**
* Test items in array using $callable and return true
* if at least one of tests successful.
* Tests whether some element in the array passes the test
* implemented by the provided function.
*
* @param $array
* @param $callable
* @param int $option
* @return bool
*/
function any($array, $callable, $option = USE_VALUE)
function any($array, $callable, $option = TEST_VALUE)
{
foreach ($array as $key => $value) {
switch ($option) {
case USE_KEY:
case TEST_KEY:
$test = $callable($key);
break;
case USE_BOTH:
case TEST_BOTH:
$test = $callable($value, $key);
break;
case USE_VALUE:
case TEST_VALUE:
default:
$test = $callable($value);
}
Expand All @@ -37,25 +37,25 @@ function any($array, $callable, $option = USE_VALUE)
}

/**
* Test items in array using $callable and return true
* if all tests successful.
* Tests whether all elements in the array pass the test
* implemented by the provided function.
*
* @param $array
* @param $callable
* @param int $option
* @return bool
*/
function all($array, $callable, $option = USE_VALUE)
function all($array, $callable, $option = TEST_VALUE)
{
foreach ($array as $key => $value) {
switch ($option) {
case USE_KEY:
case TEST_KEY:
$test = $callable($key);
break;
case USE_BOTH:
case TEST_BOTH:
$test = $callable($value, $key);
break;
case USE_VALUE:
case TEST_VALUE:
default:
$test = $callable($value);
}
Expand All @@ -65,3 +65,14 @@ function all($array, $callable, $option = USE_VALUE)
}
return true;
}

/**
* Create array from variable list of arguments.
*
* @param array ...$items
* @return array
*/
function arrayOf(...$items)
{
return $items;
}
38 changes: 23 additions & 15 deletions tests/ArraysTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -2,13 +2,14 @@

namespace tests;

use function Nerd\Common\Arrays\arrayOf;
use PHPUnit\Framework\TestCase;

use function Nerd\Common\Arrays\all;
use function Nerd\Common\Arrays\any;

use const Nerd\Common\Arrays\USE_KEY;
use const Nerd\Common\Arrays\USE_BOTH;
use const Nerd\Common\Arrays\TEST_KEY;
use const Nerd\Common\Arrays\TEST_BOTH;

class ArraysTest extends TestCase
{
Expand All @@ -27,19 +28,19 @@ public function testAllKey()
$test = function ($key) {
return strlen($key) == 2;
};
$this->assertFalse(all(["aa" => 15, "abc" => 10], $test, USE_KEY));
$this->assertTrue(all(["aa" => 155, "ab" => 10], $test, USE_KEY));
$this->assertTrue(all([], $test, USE_KEY));
$this->assertFalse(all(["aa" => 15, "abc" => 10], $test, TEST_KEY));
$this->assertTrue(all(["aa" => 155, "ab" => 10], $test, TEST_KEY));
$this->assertTrue(all([], $test, TEST_KEY));
}

public function testAllBoth()
{
$test = function ($value, $key) {
return strlen($key) == 2 && $value > 0;
};
$this->assertFalse(all(["a" => -10, "b" => 15, "ab" => 20], $test, USE_BOTH));
$this->assertTrue(all(["ab" => 15, "cc" => 20], $test, USE_BOTH));
$this->assertTrue(all([], $test, USE_BOTH));
$this->assertFalse(all(["a" => -10, "b" => 15, "ab" => 20], $test, TEST_BOTH));
$this->assertTrue(all(["ab" => 15, "cc" => 20], $test, TEST_BOTH));
$this->assertTrue(all([], $test, TEST_BOTH));
}

public function testAnyValue()
Expand All @@ -58,19 +59,26 @@ public function testAnyKey()
$test = function ($key) {
return strlen($key) == 2;
};
$this->assertTrue(any(["aa" => 15, "abc" => 10], $test, USE_KEY));
$this->assertFalse(any(["aaa" => 155, "abc" => 10], $test, USE_KEY));
$this->assertFalse(any([], $test, USE_KEY));
$this->assertTrue(any(["aa" => 15, "abc" => 10], $test, TEST_KEY));
$this->assertFalse(any(["aaa" => 155, "abc" => 10], $test, TEST_KEY));
$this->assertFalse(any([], $test, TEST_KEY));
}

public function testAnyBoth()
{
$test = function ($value, $key) {
return strlen($key) == 2 && $value > 0;
};
$this->assertTrue(any(["a" => -10, "b" => 15, "ab" => 20], $test, USE_BOTH));
$this->assertTrue(any(["ab" => 15, "cc" => 20], $test, USE_BOTH));
$this->assertFalse(any([], $test, USE_BOTH));
$this->assertFalse(any(["a" => 15, "ab" => -15], $test, USE_BOTH));
$this->assertTrue(any(["a" => -10, "b" => 15, "ab" => 20], $test, TEST_BOTH));
$this->assertTrue(any(["ab" => 15, "cc" => 20], $test, TEST_BOTH));
$this->assertFalse(any([], $test, TEST_BOTH));
$this->assertFalse(any(["a" => 15, "ab" => -15], $test, TEST_BOTH));
}

public function testArrayOf()
{
$this->assertEquals([1, 2, 3], arrayOf(1, 2, 3));
$this->assertEquals([1], arrayOf(1));
$this->assertEquals([], arrayOf());
}
}