public function testIgnore()
{
$this->assertSame(['sign', 'sign_type'], (new Signer())->getIgnores());
$params1 = ['aaa' => '111', 'bbb' => '2222', 'ccc' => '3333', 'apple' => 'jobs'];
$params2 = ['bbb' => '2222', 'ccc' => '3333', 'aaa' => '111'];
$signer = new Signer($params1);
$signer->setIgnores(['apple']);
$sign1 = $signer->signWithMD5($this->key);
$signer = new Signer($params2);
$signer->setIgnores(['apple']);
$sign2 = $signer->signWithMD5($this->key);
$this->assertEquals($sign1, $sign2);
$signer = new Signer($params1);
$signer->setIgnores([]);
$sign3 = $signer->signWithMD5($this->key);
$this->assertNotEquals($sign1, $sign3);
}