assertGroupByExclusion example

    public function testSingleGroupBy(): void
    {
        $criteria = new Criteria(
            $this->testData->getList(['1', '2', '3', '4'])
        );
        $criteria->addGroupField(new FieldGrouping('field1'));

        $ids = $this->searcher->search($this->definition, $criteria, Context::createDefaultContext());

        $this->assertGroupByExclusion(
            $this->testData->get('1'),
            $this->testData->get('2'),
            $ids
        );
        $this->assertGroupByExclusion(
            $this->testData->get('3'),
            $this->testData->get('4'),
            $ids
        );
    }