ApaiIO\Test\Operations\Types\SimilarityLookupTest::testGetItemId PHP Method

    public function testGetItemId()
    {
        $lookup = new SimilarityLookup();
        $this->assertEquals(null, $lookup->getItemId());
        $lookup->setItemId('B0117IJ4LE');
        $this->assertEquals('B0117IJ4LE', $lookup->getItemId());
    }