public function testZeroValues() { $objNumber = new Number(0); $this->assertSame('0', $objNumber->getAsString()); $this->assertSame((double) 0, $objNumber->getAsFloat()); $objNumber = new Number(-0); $this->assertSame('0', $objNumber->getAsString()); $this->assertSame((double) 0, $objNumber->getAsFloat()); }