public function testFnPipeWithMultipleArgumentsInFirstFunction()
{
$fnAdd = function ($a, $b) {
return $a + $b;
};
$fnIncrease = function ($v) {
return $v + 1;
};
$fnChain = fn\fnPipe($fnAdd, $fnIncrease, $fnIncrease, $fnIncrease);
$this->assertEquals(8, $fnChain(2, 3));
}
/**
* Generates a function that pulls a value from a field in the document and passes it to $fnMap.
*
* @param string $fieldName
* @param Closure $fnMap($fieldValue)
* @return Closure
*/
function fnMapFromField($fieldName, $fnMap)
{
return fn\fnPipe(fn\fnPluck($fieldName), $fnMap);
}