function testIncrement()
{
/** @var $f callback */
$f = F::increment();
$this->assertSame(0, $f());
$this->assertSame(1, $f());
$this->assertSame(2, $f());
$g = F::increment();
$this->assertSame(0, $g());
$this->assertSame(1, $g());
$this->assertSame(3, $f());
}
function assertEnumOrderEquals(array $expected, E $actual, $maxLength = PHP_INT_MAX)
{
$this->assertEquals($expected, $actual->take($maxLength)->select('array($k, $v)', Functions::increment()));
}
/**
* <p><b>Syntax</b>: toValues ()
* <p>Returns a sequence of values from the source sequence; keys are discarded.
* @return Enumerable A sequence with the same values and sequental integers as keys.
* @see array_values
*/
public function toValues()
{
return $this->select(Functions::$value, Functions::increment());
}
/** @covers YaLinqo\Enumerable::join
*/
function testJoin()
{
// join (inner)
$this->assertEnumEquals(array(), E::from(array())->join(array()));
$this->assertEnumEquals(array(), E::from(array())->join(array(6, 7, 8)));
$this->assertEnumEquals(array(), E::from(array(3, 4, 5))->join(array()));
$this->assertEnumEquals(array(a(3, 6), a(4, 7), a(5, 8)), E::from(array(3, 4, 5))->join(array(6, 7, 8)));
$this->assertEnumEquals(array('a' => a(3, 6), 'b' => a(4, 7), 'c' => a(5, 8)), E::from(array('a' => 3, 'b' => 4, 'c' => 5))->join(array('a' => 6, 'b' => 7, 'c' => 8)));
// join (inner, outerKeySelector)
$this->assertEnumEquals(array(3 => a(a(3, 4), 6), 6 => a(a(5, 6), 7), 9 => a(a(7, 8), 8)), E::from(array(a(3, 4), a(5, 6), a(7, 8)))->join(array(3 => 6, 6 => 7, 9 => 8), '$v[0]+$k'));
// join (inner, outerKeySelector, innerKeySelector)
$this->assertEnumEquals(array(4 => a(1, 3), 6 => a(2, 4), 8 => a(3, 5)), E::from(array(4 => 1, 6 => 2, 8 => 3))->join(array(1 => 3, 2 => 4, 3 => 5), null, '$v+$k'));
$this->assertEnumEquals(array(4 => a(4, 3), 6 => a(6, 4), 8 => a(8, 5)), E::from(array(3 => 4, 5 => 6, 7 => 8))->join(array(1 => 3, 2 => 4, 3 => 5), '$v', '$v+$k'));
// join (inner, outerKeySelector, innerKeySelector, resultSelectorValue)
$this->assertEnumEquals(array(a(3, 6), a(5, 7), a(7, 8)), E::from(array(3, 4, 5))->join(array(6, 7, 8), null, null, 'array($v1+$k, $v2)'));
$this->assertEnumEquals(array(1 => a(6, 3), 2 => a(7, 4), 3 => a(8, 5)), E::from(array('a1' => 3, 'a2' => 4, 'a3' => 5))->join(array('1b' => 6, '2b' => 7, '3b' => 8), '$k[1]', 'intval($k)', 'array($v2, $v1)'));
// join (inner, outerKeySelector, innerKeySelector, resultSelectorValue, resultSelectorKey)
$this->assertEnumOrderEquals(array(a(6, 'a'), a(7, 'b'), a(7, 'c')), E::from(array(a(1, 6), a(2, 7), a(3, 8)))->join(array(a(1, 'a'), a(2, 'b'), a(2, 'c'), a(4, 'd')), '$v[0]', '$v[0]', '$v2[1]', '$v1[1]'));
$this->assertEnumEquals(array(a(6, 'a'), a(7, 'b'), a(7, 'c')), E::from(array(a(1, 6), a(2, 7), a(3, 8)))->join(array(a(1, 'a'), a(2, 'b'), a(2, 'c'), a(4, 'd')), '$v[0]', '$v[0]', 'array($v1[1], $v2[1])', Functions::increment()));
}
public static function assertEnumOrderEquals(array $expected, E $actual, $maxLength = PHP_INT_MAX)
{
self::assertEquals($expected, $actual->take($maxLength)->select('[ $k, $v ]', Functions::increment())->toArrayDeep());
}
/** @covers YaLinqo\Enumerable::join
*/
function testJoin()
{
// join (inner)
$this->assertEnumEquals([], E::from([])->join([]));
$this->assertEnumEquals([], E::from([])->join([6, 7, 8]));
$this->assertEnumEquals([], E::from([3, 4, 5])->join([]));
$this->assertEnumEquals([[3, 6], [4, 7], [5, 8]], E::from([3, 4, 5])->join([6, 7, 8]));
$this->assertEnumEquals(['a' => [3, 6], 'b' => [4, 7], 'c' => [5, 8]], E::from(['a' => 3, 'b' => 4, 'c' => 5])->join(['a' => 6, 'b' => 7, 'c' => 8]));
// join (inner, outerKeySelector)
$this->assertEnumEquals([3 => [[3, 4], 6], 6 => [[5, 6], 7], 9 => [[7, 8], 8]], E::from([[3, 4], [5, 6], [7, 8]])->join([3 => 6, 6 => 7, 9 => 8], '$v[0]+$k'));
// join (inner, outerKeySelector, innerKeySelector)
$this->assertEnumEquals([4 => [1, 3], 6 => [2, 4], 8 => [3, 5]], E::from([4 => 1, 6 => 2, 8 => 3])->join([1 => 3, 2 => 4, 3 => 5], null, '$v+$k'));
$this->assertEnumEquals([4 => [4, 3], 6 => [6, 4], 8 => [8, 5]], E::from([3 => 4, 5 => 6, 7 => 8])->join([1 => 3, 2 => 4, 3 => 5], '$v', '$v+$k'));
// join (inner, outerKeySelector, innerKeySelector, resultSelectorValue)
$this->assertEnumEquals([[3, 6], [5, 7], [7, 8]], E::from([3, 4, 5])->join([6, 7, 8], null, null, '[ $v1+$k, $v2 ]'));
$this->assertEnumEquals([1 => [6, 3], 2 => [7, 4], 3 => [8, 5]], E::from(['a1' => 3, 'a2' => 4, 'a3' => 5])->join(['1b' => 6, '2b' => 7, '3b' => 8], '$k[1]', 'intval($k)', '[ $v2, $v1 ]'));
// join (inner, outerKeySelector, innerKeySelector, resultSelectorValue, resultSelectorKey)
$this->assertEnumOrderEquals([[6, 'a'], [7, 'b'], [7, 'c']], E::from([[1, 6], [2, 7], [3, 8]])->join([[1, 'a'], [2, 'b'], [2, 'c'], [4, 'd']], '$v[0]', '$v[0]', '$v2[1]', '$v1[1]'));
$this->assertEnumEquals([[6, 'a'], [7, 'b'], [7, 'c']], E::from([[1, 6], [2, 7], [3, 8]])->join([[1, 'a'], [2, 'b'], [2, 'c'], [4, 'd']], '$v[0]', '$v[0]', '[ $v1[1], $v2[1] ]', Functions::increment()));
}
function testIncrement()
{
$f = F::increment();
$this->assertSame(0, $f());
$this->assertSame(1, $f());
$this->assertSame(2, $f());
$g = F::increment();
$this->assertSame(0, $g());
$this->assertSame(1, $g());
$this->assertSame(3, $f());
}
<?php
/**
* Global functions and initialization.
* @author Alexander Prokhorov
* @license Simplified BSD
* @link https://github.com/Athari/YaLinqo YaLinqo on GitHub
*/
\YaLinqo\Functions::init();
\YaLinqo\Utils::init();
if (!function_exists('from')) {
/**
* Create Enumerable from an array or any other traversible source.
* @param array|\Iterator|\IteratorAggregate|\YaLinqo\Enumerable $source
* @throws \InvalidArgumentException If source is not array or Traversible or Enumerable.
* @return \YaLinqo\Enumerable
* @see \YaLinqo\Enumerable::from
*/
function from($source)
{
return \YaLinqo\Enumerable::from($source);
}
}
self::$blank = function () {
};
self::$compareStrict = function ($a, $b) {
if ($a === $b) {
return 0;
} elseif ($a > $b) {
return 1;
} else {
return -1;
}
};
self::$compareLoose = function ($a, $b) {
if ($a == $b) {
return 0;
} elseif ($a > $b) {
return 1;
} else {
return -1;
}
};
}
public static function increment()
{
$i = 0;
return function () use(&$i) {
return $i++;
};
}
}
Functions::init();