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我正在编写单元测试来模仿可怕的MySql已经消失的错误,但我有一个问题让我的模拟对象正确响应。也许有人可以看到我做错了什么。Mocking PDOException类无法响应
private function getMockGoneAway()
{
$e = $this->getMockBuilder('PDOException')
->disableOriginalConstructor()
->setMethods([
'getMessage',
'getCode',
])
->getMock();
$e->expects($this->any())
->method('getMessage')
->willReturn('SQLSTATE[HY000]: General error: 2006 MySQL server has gone away');
$e->expects($this->any())
->method('getCode')
->willReturn('HY000');
return $e;
}
这是测试。问题是无论它发生在哪里,我都无法得到模拟异常以从getMessage或getCode返回预期的结果。
public function testBeginTransactionGoneAway()
{
// get a mock PDO object that overrides beginTransaction method
$mock_pdo = $this->getMockPdo(['beginTransaction']);
// grab a mock gone-away exception object
$mock_gone_away_exception = $this->getMockGoneAway();
die("MSG: ".$mock_gone_away_exception->getMessage());
// setup mock pdo responses
$mock_pdo->expects($this->once())
->method('beginTransaction')
->will($this->throwException($mock_gone_away_exception));
$this->db->replaceConnection($mock_pdo);
$this->db->begin();
}