Rails-如何测试ActionMailer发送了特定附件？

Posted 2021-04-07

在我的ActionMailer :: TestCase测试中，我期望：

@expected.to      = BuyadsproMailer.group_to(campaign.agency.users)
@expected.subject = "You submitted #{offer_log.total} worth of offers for #{offer_log.campaign.name} "
@expected.from    = "BuyAds Pro <[e-mail]>"
@expected.body    = read_fixture('deliver_to_agency')

@expected.content_type = "multipart/mixed;
 boundary="something""
@expected.attachments["#{offer_log.aws_key}.pdf"] = {
  :mime_type => 'application/pdf',
  :content => fake_pdf.body
}

并存根我的邮件来获取fake_pdf，而不是通常从S3获取的真实PDF，以便我确定PDF的正文匹配。

但是，我得到了一个长错误，告诉我应该收到一封电子邮件，但电子邮件略有不同：

<...Mime-Version: 1.0
Content-Type: multipart/mixed
Content-Transfer-Encoding: 7bit...> expected but was
<...Mime-Version: 1.0
Content-Type: multipart/mixed;
 boundary="--==_mimepart_50f06fa9c06e1_118dd3fd552035ae03352b";
 charset=UTF-8
Content-Transfer-Encoding: 7bit...>

我与所生成电子邮件的字符集或部分边界不匹配。

我应该如何定义或存入预期电子邮件的这一方面？

答案

这是我从rspec测试中复制的特定附件示例，希望对您有所帮助（可以通过调用您的mailer方法来创建邮件，或者在调用.deliver之后查看传递数组：]

  mail.attachments.should have(1).attachment
  attachment = mail.attachments[0]
  attachment.should be_a_kind_of(Mail::Part)
  attachment.content_type.should be_start_with('application/ics;')
  attachment.filename.should == 'event.ics'

另一答案

我有类似的地方想要检查附件中csv的内容。我需要这样的内容，因为它看起来像 已插入换行符：

expect(mail.attachments.first.body.encoded.gsub(/
/, '')).to(
  eq(
    <<~CSV
      "Foo","Bar"
      "1","2"
    CSV
  )
)