public function testIncrementWithTags() { $expectedTagsValues = array('value1', 'value2'); $gaugeMock = $this->getMockBuilder('\\Prometheus\\Gauge')->disableOriginalConstructor()->getMock(); $gaugeMock->expects($this->once())->method('inc')->with($expectedTagsValues); $this->collectorRegistryMock->expects($this->once())->method('getGauge')->with(self::TEST_NAMESPACE, self::TEST_VARIABLE_NAME)->willReturn($gaugeMock); $this->collector->setTags(array('tag1' => 'value1', 'tag2' => 'value2')); $this->collector->increment(self::TEST_VARIABLE_NAME); $this->collector->flush(); }