android / android/android-test
Repeat many times of Espresso Remote test got IllegalStateException
- Dominant language
- Java
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- Merged PRs (30d)
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Description
### Description
MultiProcessSample in googlesamples/android-testing will crash occasionally.
**And if change the private process to main process, repeat 100 times, will success.**
### Steps to Reproduce
run the ExampleInstrumentedTest in MultiProcessSample 100 times.
### Expected Results
Test success.
### Actual Results
```
Testing started at 21:13 ...
03/29 21:13:21: Launching ExampleInstrumentedT...
Running tests
$ adb shell am instrument -w -r -e debug false -e class 'com.example.android.testing.espresso.multiprocesssample.ExampleInstrumentedTest' com.example.android.testing.espresso.multiprocesssample.test/androidx.test.runner.AndroidJUnitRunner
Client not ready yet..
Started running tests
java.lang.IllegalStateException: Interaction response reported Status.Error, but noerror message was attached to interaction response: androidx.test.espresso.remote.InteractionResponse@8763d4a
at androidx.test.espresso.remote.EspressoRemote.reportResults(EspressoRemote.java:386)
at androidx.test.espresso.remote.EspressoRemote.initiateRemoteCall(EspressoRemote.java:278)
at androidx.test.espresso.remote.EspressoRemote$2.run(EspressoRemote.java:237)
at androidx.test.espresso.remote.EspressoRemote$3.call(EspressoRemote.java:256)
at androidx.test.espresso.remote.EspressoRemote$3.call(EspressoRemote.java:244)
at androidx.test.espresso.core.internal.deps.guava.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:125)
at androidx.test.espresso.core.internal.deps.guava.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:69)
at androidx.test.espresso.core.internal.deps.guava.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:78)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:764)
Tests ran to completion.
```
### AndroidX Test and Android OS Versions
AndroidX Test version as it is in MultiProcessSample of googlesamples/android-testing.
```
buildToolsVersion = "28.0.3"
androidxLibVersion = "1.0.0"
coreVersion = "1.1.1-alpha02"
extJUnitVersion = "1.1.1-alpha02"
runnerVersion = "1.1.2-alpha02"
rulesVersion = "1.1.2-alpha02"
espressoVersion = "3.2.0-alpha02"
```
Android OS Version is 9.0
I use AVD test it.
```
Name: Pixel_2_XL_API_28
CPU/ABI: Intel Atom (x86_64)
Path: /Users/shifujun/.android/avd/Pixel_2_XL_API_28.avd
Target: default [Default Android System Image] (API level 28)
Skin: pixel_2_xl
SD Card: 512M
fastboot.chosenSnapshotFile:
runtime.network.speed: full
hw.accelerometer: yes
hw.device.name: pixel_2_xl
hw.lcd.width: 1440
hw.initialOrientation: Portrait
image.androidVersion.api: 28
tag.id: default
hw.mainKeys: no
hw.camera.front: emulated
avd.ini.displayname: Pixel 2 XL API 28
hw.gpu.mode: auto
hw.ramSize: 1536
PlayStore.enabled: false
fastboot.forceColdBoot: no
hw.cpu.ncore: 4
hw.keyboard: yes
hw.sensors.proximity: yes
hw.dPad: no
hw.lcd.height: 2880
vm.heapSize: 384
skin.dynamic: yes
hw.device.manufacturer: Google
hw.gps: yes
hw.audioInput: yes
image.sysdir.1: system-images/android-28/default/x86_64/
showDeviceFrame: yes
hw.camera.back: virtualscene
AvdId: Pixel_2_XL_API_28
hw.lcd.density: 560
hw.arc: false
hw.device.hash2: MD5:ce72d6c2506218ad8c9cc1cfa7e13357
fastboot.forceChosenSnapshotBoot: no
fastboot.forceFastBoot: yes
hw.trackBall: no
hw.battery: yes
hw.sdCard: yes
tag.display: Default Android System Image
runtime.network.latency: none
disk.dataPartition.size: 800M
hw.sensors.orientation: yes
avd.ini.encoding: UTF-8
hw.gpu.enabled: yes
```
### Link to a public git repo demonstrating the problem:
I have commit code of repeat the test 100 times in my repo.
https://github.com/shifujun/android-testing/tree/master/ui/espresso/MultiProcessSample
Contributor guide
Research direction
Start with the MultiProcessSample and run ExampleInstrumentedTest 100 times on the provided API 28 emulator, comparing the private-process and main-process configurations. Trace the failure through the reported EspressoRemote.java calls and use the linked sample repository to reproduce it. Done means the repeated multiprocess test completes successfully without the IllegalStateException.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- android, java
- Domain
- mobile-dev, testing
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100