public function testGetChannelname() { $g1 = InstructionControl::getChannelSetId(genSaneGuid()); $n = genSaneGuid(); $chanId = InstructionControl::getChannelId($g1, $n); $this->assertEquals($n, InstructionControl::getChannelname($chanId)); $this->assertEquals(null, InstructionControl::getChannelname(-100)); }