public function testValueOf() { $this->assertEquals('true', $this->object->valueOf(true)); $this->assertEquals('false', $this->object->valueOf(false)); $this->assertEquals('0', $this->object->valueOf(0)); $this->assertEquals('2120', $this->object->valueOf(2120)); $this->assertEquals('2120.32', $this->object->valueOf(2120.32)); $this->assertEquals('2120', $this->object->valueOf('2120')); $this->assertEquals('', $this->object->valueOf('')); $this->assertEquals('', $this->object->valueOf(null)); }