public function testPreventDividedByZeroWhenPredictedLabelsAllNotMatch() { $labels = [1, 2, 3, 4, 5]; $predicted = [2, 3, 4, 5, 6]; $report = new ClassificationReport($labels, $predicted); $this->assertEquals(['precision' => 0, 'recall' => 0, 'f1score' => 0], $report->getAverage(), '', 0.01); }