public function testSelectRejectSortBy()
{
// from js
$numbers = array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
$numbers = __($numbers)->chain()->select(function ($n) {
return $n % 2 === 0;
})->reject(function ($n) {
return $n % 4 === 0;
})->sortBy(function ($n) {
return -$n;
})->value();
$this->assertEquals(array(10, 6, 2), $numbers, 'filtered and reversed the numbers in OO-style call');
$numbers = array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
$numbers = __::chain($numbers)->select(function ($n) {
return $n % 2 === 0;
})->reject(function ($n) {
return $n % 4 === 0;
})->sortBy(function ($n) {
return -$n;
})->value();
$this->assertEquals(array(10, 6, 2), $numbers, 'filtered and reversed the numbers in static call');
}
public function testTap()
{
// from js
$intercepted = null;
$interceptor = function ($obj) use(&$intercepted) {
$intercepted = $obj;
};
$returned = __::tap(1, $interceptor);
$this->assertEquals(1, $intercepted, 'passed tapped object to interceptor');
$this->assertEquals(1, $returned, 'returns tapped object');
$returned = __(array(1, 2, 3))->chain()->map(function ($n) {
return $n * 2;
})->max()->tap($interceptor)->value();
$this->assertTrue($returned === 6 && $intercepted === 6, 'can use tapped objects in a chain');
$returned = __::chain(array(1, 2, 3))->map(function ($n) {
return $n * 2;
})->max()->tap($interceptor)->value();
$this->assertTrue($returned === 6 && $intercepted === 6, 'can use tapped objects in a chain with static call');
// docs
$interceptor = function ($obj) {
return $obj * 2;
};
$result = __(array(1, 2, 3))->chain()->max()->tap($interceptor)->value();
$this->assertEquals(3, $result);
}