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electricbubble / gidevice

communicate with iOS devices implemented with Golang
MIT License
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运行时偶现 panic #28

Open chenhengjie123 opened 2 years ago

chenhengjie123 commented 2 years ago

运行命令

./gidevice xctest com.facebook.WebDriverAgentRunner.xctrunner -u xxxx --env=USE_PORT=8100 --env=MJPEG_SERVER_PORT=9100

执行一段时间后，运行基于 appium 的 UI 自动化脚本时，出现如下报错然后自动退出：

 t =  3505.76s     Requesting snapshot of accessibility hierarchy for app with pid 566
    t =  3506.16s     Find: Descendants matching type Any
    t =  3506.17s     Find: Elements matching predicate '(wdType == "XCUIElementTypeTextField" AND wdValue == "请输入手机号") AND (1 == 1 OR identifier == 0 OR frame == 0 OR value == 0 OR title == 0 OR label == 0 OR elementType == 0 OR enabled == 0 OR placeholderValue == 0 OR selected == 0)'
panic: runtime error: slice bounds out of range [:209106] with capacity 132768

goroutine 8 [running]:
github.com/electricbubble/gidevice/pkg/libimobiledevice.(*dtxMessageClient).ReceiveDTXMessage(0xc00038b1a0, 0xc000096000, 0x0, 0x0)
    /home/runner/go/pkg/mod/github.com/electricbubble/gidevice@v0.3.2/pkg/libimobiledevice/client_dtxmessage.go:180 +0x1265
github.com/electricbubble/gidevice/pkg/libimobiledevice.(*dtxMessageClient).startReceive.func1(0xc00038b1a0)
    /home/runner/go/pkg/mod/github.com/electricbubble/gidevice@v0.3.2/pkg/libimobiledevice/client_dtxmessage.go:326 +0x5e
created by github.com/electricbubble/gidevice/pkg/libimobiledevice.(*dtxMessageClient).startReceive
    /home/runner/go/pkg/mod/github.com/electricbubble/gidevice@v0.3.2/pkg/libimobiledevice/client_dtxmessage.go:320 +0x3f

目前为偶现，暂时未找到稳定复现步骤。

electricbubble commented 2 years ago

偶现这个问题时，是否都恰好在 app 元素较多的页面？

ZhouYixun commented 2 years ago

有没有试过调整ios获取控件层数约束一下

chenhengjie123 commented 2 years ago

偶现这个问题时，是否都恰好在 app 元素较多的页面？

查看了一下当时的日志，出现这个问题时，手机是在登录页面。完整控件树如下：

<?xml version="1.0" encoding="UTF-8"?>
<AppiumAUT>
  <XCUIElementTypeApplication type="XCUIElementTypeApplication" name="Funbox" label="Funbox" enabled="true" visible="true" accessible="false" x="0" y="0" width="414" height="736" index="0">
    <XCUIElementTypeWindow type="XCUIElementTypeWindow" enabled="true" visible="true" accessible="false" x="0" y="0" width="414" height="736" index="0">
      <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="false" accessible="false" x="0" y="0" width="414" height="736" index="0">
        <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="false" accessible="false" x="0" y="0" width="414" height="736" index="0"/>
      </XCUIElementTypeOther>
      <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="0" y="0" width="414" height="736" index="1">
        <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="0" y="0" width="414" height="736" index="0">
          <XCUIElementTypeNavigationBar type="XCUIElementTypeNavigationBar" name="AIPWPhoneLogin" enabled="true" visible="true" accessible="false" x="0" y="20" width="414" height="44" index="0">
            <XCUIElementTypeButton type="XCUIElementTypeButton" name="" label="" enabled="true" visible="true" accessible="true" x="10" y="20" width="32" height="44" index="0"/>
          </XCUIElementTypeNavigationBar>
          <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="0" y="0" width="414" height="736" index="1">
            <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="0" y="0" width="414" height="736" index="0">
              <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="0" y="0" width="414" height="736" index="0">
                <XCUIElementTypeStaticText type="XCUIElementTypeStaticText" value="手机号注册/登录" name="手机号注册/登录" label="手机号注册/登录" enabled="true" visible="true" accessible="true" x="32" y="112" width="180" height="34" index="0"/>
                <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="32" y="169" width="350" height="57" index="1">
                  <XCUIElementTypeOther type="XCUIElementTypeOther" name="+86" label="+86" enabled="true" visible="true" accessible="false" x="32" y="173" width="78" height="49" index="0">
                    <XCUIElementTypeImage type="XCUIElementTypeImage" enabled="true" visible="false" accessible="false" x="32" y="189" width="24" height="17" index="0"/>
                    <XCUIElementTypeStaticText type="XCUIElementTypeStaticText" value="+86" name="+86" label="+86" enabled="true" visible="true" accessible="true" x="62" y="189" width="32" height="17" index="1"/>
                    <XCUIElementTypeImage type="XCUIElementTypeImage" enabled="true" visible="false" accessible="false" x="101" y="193" width="9" height="9" index="2"/>
                  </XCUIElementTypeOther>
                  <XCUIElementTypeTextField type="XCUIElementTypeTextField" value="请输入手机号" label="" enabled="true" visible="true" accessible="true" x="125" y="173" width="209" height="49" index="1"/>
                  <XCUIElementTypeButton type="XCUIElementTypeButton" name="login clean" label="login clean" enabled="true" visible="true" accessible="true" x="350" y="181" width="32" height="33" index="2"/>
                  <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="32" y="225" width="350" height="1" index="3"/>
                </XCUIElementTypeOther>
                <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="32" y="285" width="350" height="51" index="2">
                  <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="157" y="302" width="100" height="18" index="0">
                    <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="157" y="302" width="100" height="18" index="0">
                      <XCUIElementTypeStaticText type="XCUIElementTypeStaticText" value="发送短信验证码" name="发送短信验证码" label="发送短信验证码" enabled="true" visible="true" accessible="true" x="157" y="302" width="100" height="18" index="0"/>
                    </XCUIElementTypeOther>
                  </XCUIElementTypeOther>
                </XCUIElementTypeOther>
              </XCUIElementTypeOther>
            </XCUIElementTypeOther>
          </XCUIElementTypeOther>
        </XCUIElementTypeOther>
      </XCUIElementTypeOther>
    </XCUIElementTypeWindow>
    <XCUIElementTypeWindow type="XCUIElementTypeWindow" enabled="true" visible="false" accessible="false" x="0" y="0" width="414" height="736" index="1">
      <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="false" accessible="false" x="0" y="0" width="414" height="736" index="0">
        <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="false" accessible="false" x="0" y="0" width="414" height="736" index="0"/>
        <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="false" accessible="false" x="0" y="510" width="414" height="226" index="1">
          <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="false" accessible="false" x="0" y="510" width="414" height="226" index="0"/>
        </XCUIElementTypeOther>
      </XCUIElementTypeOther>
    </XCUIElementTypeWindow>
    <XCUIElementTypeWindow type="XCUIElementTypeWindow" enabled="true" visible="true" accessible="false" x="0" y="0" width="414" height="736" index="2">
      <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="0" y="0" width="414" height="736" index="0">
        <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="0" y="510" width="414" height="226" index="0">
          <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="false" accessible="false" x="0" y="510" width="414" height="226" index="0">
            <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="false" accessible="false" x="0" y="510" width="414" height="226" index="0">
              <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="false" accessible="false" x="0" y="510" width="414" height="226" index="0">
                <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="false" accessible="false" x="0" y="510" width="414" height="226" index="0"/>
                <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="false" accessible="false" x="0" y="510" width="414" height="226" index="1"/>
              </XCUIElementTypeOther>
            </XCUIElementTypeOther>
          </XCUIElementTypeOther>
          <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="0" y="510" width="414" height="226" index="1">
            <XCUIElementTypeKeyboard type="XCUIElementTypeKeyboard" enabled="true" visible="true" accessible="false" x="0" y="510" width="414" height="226" index="0">
              <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="0" y="510" width="414" height="226" index="0">
                <XCUIElementTypeOther type="XCUIElementTypeOther" enabled="true" visible="true" accessible="false" x="0" y="510" width="414" height="226" index="0">
                  <XCUIElementTypeKey type="XCUIElementTypeKey" name="1" label="1" enabled="true" visible="true" accessible="true" x="0" y="510" width="137" height="57" index="0"/>
                  <XCUIElementTypeKey type="XCUIElementTypeKey" name="2" label="2" enabled="true" visible="true" accessible="true" x="136" y="510" width="142" height="57" index="1"/>
                  <XCUIElementTypeKey type="XCUIElementTypeKey" name="3" label="3" enabled="true" visible="true" accessible="true" x="277" y="510" width="137" height="57" index="2"/>
                  <XCUIElementTypeKey type="XCUIElementTypeKey" name="4" label="4" enabled="true" visible="true" accessible="true" x="0" y="567" width="137" height="56" index="3"/>
                  <XCUIElementTypeKey type="XCUIElementTypeKey" name="5" label="5" enabled="true" visible="true" accessible="true" x="136" y="567" width="142" height="56" index="4"/>
                  <XCUIElementTypeKey type="XCUIElementTypeKey" name="6" label="6" enabled="true" visible="true" accessible="true" x="277" y="567" width="137" height="56" index="5"/>
                  <XCUIElementTypeKey type="XCUIElementTypeKey" name="7" label="7" enabled="true" visible="true" accessible="true" x="0" y="623" width="137" height="56" index="6"/>
                  <XCUIElementTypeKey type="XCUIElementTypeKey" name="8" label="8" enabled="true" visible="true" accessible="true" x="136" y="623" width="142" height="56" index="7"/>
                  <XCUIElementTypeKey type="XCUIElementTypeKey" name="9" label="9" enabled="true" visible="true" accessible="true" x="277" y="623" width="137" height="56" index="8"/>
                  <XCUIElementTypeKey type="XCUIElementTypeKey" name="International" label="International" enabled="true" visible="true" accessible="true" x="0" y="679" width="70" height="57" index="9"/>
                  <XCUIElementTypeKey type="XCUIElementTypeKey" name="Shift" label="Shift" enabled="true" visible="true" accessible="true" x="67" y="679" width="70" height="57" index="10"/>
                  <XCUIElementTypeKey type="XCUIElementTypeKey" name="0" label="0" enabled="true" visible="true" accessible="true" x="136" y="679" width="142" height="57" index="11"/>
                  <XCUIElementTypeKey type="XCUIElementTypeKey" name="删除" label="删除" enabled="true" visible="true" accessible="true" x="277" y="679" width="137" height="57" index="12"/>
                </XCUIElementTypeOther>
              </XCUIElementTypeOther>
            </XCUIElementTypeKeyboard>
          </XCUIElementTypeOther>
        </XCUIElementTypeOther>
      </XCUIElementTypeOther>
    </XCUIElementTypeWindow>
  </XCUIElementTypeApplication>
</AppiumAUT>

不知道这个算不算多，但目前并不是必现的，大部分情况下在这个界面是可以正常输入手机号什么的。不过没太理解，这个 panic 是因为控件多引起的吗？

electricbubble commented 2 years ago

不是这原因，只是因为看提供的日志，恰好停留在匹配元素的输出后面，

结合报错信息，猜测可能是响应过大，同时赶上未知的原因导致接收的数据不完整，

所以只是猜测，问这个只是为了判断是否可能存在这种可能。

原因暂无思路定位，但这个 panic 可以避免掉，

晚些时候我做一些调整，这种情况数据不完整的情况可能还是会出现

chenhengjie123 commented 2 years ago

这个不好约束，毕竟项目控件深度这个目前没有严格规范限制。我现在用的是 wda 的默认值（印象中是50）。而且这个问题并不是必现，一样的脚本这个问题只是偶现，所以因为这个问题调整 wda 的控件深度，有点不大合适。

electricbubble commented 2 years ago

⚠️只是现状无法定位的猜测

electricbubble commented 2 years ago

已尝试避免 panic v0.5.2，有空再试一试

electricbubble/gidevice-cli v0.8.0