InfluxDB\Test\PointTest::testTagEmptyValueEscaping PHP Method

    public function testTagEmptyValueEscaping()
    {
        $expected = 'instance,empty_tag="",whitespace=\\ ,value_tag=value cpucount=10i,free=1i,test="string",bool=false,value=1.11';
        $point = $this->getPoint(null);
        $point->setTags(['empty_tag' => '', 'whitespace' => ' ', 'value_tag' => 'value']);
        $this->assertEquals($expected, (string) $point);
    }