android-intent - Espresso-Intents - 匹配器和 stub

Question

我的应用程序偏好设置中有一个发送反馈。它应该打开一个选择器和一个新的意图，以发送包含提供的电子邮件地址、主题和文本模板的电子邮件。这部分仅适用于模拟器和物理设备:

prefButtonSendFeedback?.onPreferenceClickListener = Preference.OnPreferenceClickListener {
            val emailIntent = Intent(Intent.ACTION_SENDTO)
            emailIntent.type = "text/plain"
            emailIntent.data = Uri.parse("mailto:")
            emailIntent.putExtra(Intent.EXTRA_EMAIL, arrayOf(getString(R.string.send_feedback_email_address)))
            emailIntent.putExtra(Intent.EXTRA_SUBJECT, getString(R.string.send_feedback_email_subject))
            emailIntent.putExtra(Intent.EXTRA_TEXT, getString(R.string.send_feedback_email_content_template))
            context?.startActivity(Intent.createChooser(emailIntent, getString(R.string.send_feedback_intent_name)))
            true
        }

我还针对这种情况进行了 Espresso 测试:

    @Test fun clickOnFeedbackActionMenuItem_StartsFeedbackFragment() {
        launchFragmentInContainer<SettingsFragment>()

        Intents.init()

        intending(
            hasAction(Intent.ACTION_CHOOSER)
        ).respondWith(
            ActivityResult(Activity.RESULT_OK, null)
        )

        // Press on Feedback navigation item
        onView(withId(androidx.preference.R.id.recycler_view))
            .perform(
                actionOnItem<RecyclerView.ViewHolder>(
                    hasDescendant(withText(R.string.pref_send_feedback)), click()
                )
            )

        val emailIntent = allOf(
            hasAction(Intent.ACTION_SENDTO),
            hasData(Uri.parse("mailto:")),
            hasExtra(Intent.EXTRA_EMAIL, arrayOf(withText(R.string.send_feedback_email_address))),
            hasExtra(Intent.EXTRA_SUBJECT, withText(R.string.send_feedback_email_subject)),
            hasExtra(Intent.EXTRA_TEXT, withText(R.string.send_feedback_email_content_template))
        )

        val expectedIntent = allOf(
            hasAction(Intent.ACTION_CHOOSER),
            hasExtra(equalTo(Intent.EXTRA_INTENT), emailIntent),
            hasExtra(equalTo(Intent.EXTRA_TITLE), withText(R.string.send_feedback_intent_name))
        )

        intended(expectedIntent)

        Intents.release()
    }

我的问题总体上与 How to stub Intent.createChooser Intent using Espresso 中的问题类似。

• 使用代码中的匹配器时出现错误:

androidx.test.espresso.base.DefaultFailureHandler$AssertionFailedWithCauseError: Wanted to match 1 intents. Actually matched 0 intents.

IntentMatcher: (has action: is "android.intent.action.CHOOSER" and has extras: has bundle with: key: "android.intent.extra.INTENT" value: (has action: is "android.intent.action.SENDTO" and has data: is <mailto:> and has extras: has bundle with: key: is "android.intent.extra.EMAIL" value: is [<with string from resource id: <3134850762>>] and has extras: has bundle with: key: is "android.intent.extra.SUBJECT" value: is <with string from resource id: <2131820702>> and has extras: has bundle with: key: is "android.intent.extra.TEXT" value: is <with string from resource id: <2131820701>>))

Matched intents:[]

Recorded intents:
-Intent { act=android.intent.action.CHOOSER (has extras) } handling packages:[[android]], extras:[Bundle[{android.intent.extra.INTENT=Intent { act=android.intent.action.SENDTO dat=mailto: (has extras) }, android.intent.extra.TITLE=Send Feedback:}]])

• 当我只有几个匹配器时，测试是绿色的 - 添加任何其他失败测试:

        val emailIntent = allOf(
            hasAction(Intent.ACTION_SENDTO),
            hasData(Uri.parse("mailto:")),
        )

        val expectedIntent = allOf(
            hasAction(Intent.ACTION_CHOOSER),
            hasExtra(equalTo(Intent.EXTRA_INTENT), emailIntent),
        )

• 我还使用了真值断言和调试器

        val receivedIntent: Intent = Iterables.getOnlyElement(Intents.getIntents())
        assertThat(receivedIntent).hasAction(Intent.ACTION_CHOOSER) ### here is a breakpoint

它向我表明，我的意图包含我需要的所有附加内容(主题、地址和文本) - 我删除了不必要的值:

receivedIntent =
  (...)
  mAction = "android.intent.action.CHOOSER"
  (..)
  mExtras = 
    mMap = 
      value[0] = 
        mAction = "android.intent.action.SENDTO"
        mData = "mailto:"
        mExtras = 
          mMap =
            value[0] = "App Feedback"
            value[1] = "Add here any bugs, issues or ideas about App"
            value[2] =
              0 = "<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="c8a1a6aea788adb0a9a5b8a4ade6aba7a5" rel="noreferrer noopener nofollow">[email protected]</a>"
      value[1] = "Send Feedback:"

我的问题是，我的匹配器出了什么问题 - 对我来说它们看起来不错:

• 选择器有额外的意图和标题
• 电子邮件意图包含电子邮件地址、主题和文本

此外，我不确定 intending() 是如何工作的 - 我假设在我的代码中使用它不会在测试期间运行真正的 Intent。所以它不会运行电子邮件客户端。我错了 - 它运行了，但如果我使用 Intents.release()，如果没有它，所有下一个测试都会挂起。

Answer 1

因此，当我深入研究网络资源时，我发现了更复杂的 Espresso 匹配器:

        val expectedIntent = allOf(
            hasAction(Intent.ACTION_CHOOSER),
            hasExtra(
                equalTo(Intent.EXTRA_INTENT),
                allOf(
                    hasAction(Intent.ACTION_SENDTO),
                    hasData(Uri.parse("mailto:")),
                    hasExtra(
                        `is`(Intent.EXTRA_TEXT),
                        `is`("Add here any bugs, issues or ideas about App")
                    ),
                    hasExtra(
                        `is`(Intent.EXTRA_EMAIL),
                        `is`(arrayOf("<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="21484f474e614459404c514d440f424e4c" rel="noreferrer noopener nofollow">[email protected]</a>"))
                    ),
                    hasExtra(
                        `is`(Intent.EXTRA_SUBJECT),
                        `is`("App Feedback")
                    )
                )
            ),
            hasExtra(
                `is`(Intent.EXTRA_TITLE),
                `is`("Send Feedback:")
            )
        )

        intended(expectedIntent)

它确实有效。

我还是不明白其中的区别，所以如果有人可以向我解释一下......

我不知道为什么这个有效:

            hasExtra(
                `is`(Intent.EXTRA_TITLE),
                `is`("Send Feedback:")
            )

而这个不是:

            hasExtra(
                `is`(Intent.EXTRA_TITLE),
                 withText(R.string.send_feedback_intent_name)
            )