InfluxDB\Test\PointTest::testTagNullValueEscaping PHP Method

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