Kraken\_Unit\Promise\_Partial\FunctionReducePartial::testApiReduce_ProvidesCorrectBasisValue PHP Метод

    public function testApiReduce_ProvidesCorrectBasisValue()
    {
        $test = $this->getTest();
        $insertIntoArray = function ($arr, $val, $i) {
            $arr[$i] = $val;
            return $arr;
        };
        $d1 = new Deferred();
        $d2 = new Deferred();
        $d3 = new Deferred();
        $mock = $test->createCallableMock();
        $mock->expects($test->once())->method('__invoke')->with($test->identicalTo([1, 2, 3]));
        Promise::reduce([$d1->getPromise(), $d2->getPromise(), $d3->getPromise()], $insertIntoArray, [])->then($mock);
        $d3->resolve(3);
        $d1->resolve(1);
        $d2->resolve(2);
    }