问题
Since my macOS made me update to XCode 9.3 I had to upgrade Xamarin.UITest from 2.2.2 to 2.2.4.
The problem is that when I run all my tests, every single time the first one fails with the error attached. I think is not a test issue because all tests run correctly on a macOS with XCode 9.2 and Xamarin.UITest 2.2.2. Also if I delete that test, then the next one that is going to be the first one fails with the same error.
Can anyone help me, please? Thank you so much in advance!
1) SetUp Error : UI.Tests.TestDashboardDetailsPage(iOS)
Xamarin.UITest.XDB.Exceptions.DeviceAgentException : DeviceAgent start session failed: An error occurred while sending the request
----> System.Net.Http.HttpRequestException : An error occurred while sending the request
----> System.Net.WebException : Error: ConnectFailure (Connection refused)
----> System.Net.Sockets.SocketException : Connection refused
at Xamarin.UITest.XDB.Services.iOSDeviceAgentService+<RequestAsync>c__async14`1[T].MoveNext () [0x0010e] in <1bd397951f434cd4913ddc08b7bc45af>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0003e] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at Xamarin.UITest.XDB.Services.iOSDeviceAgentService+<StartAppAsync>c__asyncE.MoveNext () [0x000ba] in <1bd397951f434cd4913ddc08b7bc45af>:0
--- End of stack trace from previous location where exception was thrown ---
at Xamarin.UITest.iOS.iOSAppLauncher.LaunchAppLocal (Xamarin.UITest.Configuration.IiOSAppConfiguration appConfiguration, Xamarin.UITest.Shared.Http.HttpClient httpClient, System.Boolean clearAppData) [0x00216] in <1bd397951f434cd4913ddc08b7bc45af>:0
at Xamarin.UITest.iOS.iOSAppLauncher.LaunchApp (Xamarin.UITest.Configuration.IiOSAppConfiguration appConfiguration, Xamarin.UITest.Shared.Http.HttpClient httpClient, Xamarin.UITest.TestCloud.TestCloudiOSAppConfiguration testCloudAppConfiguration, Xamarin.UITest.Shared.Http.HttpClient testCloudWsClient, Xamarin.UITest.Shared.Http.HttpClient xtcServicesClient, System.Boolean testCloudUseDeviceAgent) [0x0007a] in <1bd397951f434cd4913ddc08b7bc45af>:0
at Xamarin.UITest.iOS.iOSApp..ctor (Xamarin.UITest.Configuration.IiOSAppConfiguration appConfiguration, Xamarin.UITest.Shared.Execution.IExecutor executor) [0x002de] in <1bd397951f434cd4913ddc08b7bc45af>:0
at Xamarin.UITest.iOS.iOSApp..ctor (Xamarin.UITest.Configuration.IiOSAppConfiguration appConfiguration) [0x00000] in <1bd397951f434cd4913ddc08b7bc45af>:0
at Xamarin.UITest.Configuration.iOSAppConfigurator.StartApp (Xamarin.UITest.Configuration.AppDataMode appDataMode) [0x00017] in <1bd397951f434cd4913ddc08b7bc45af>:0
at UI.Tests.AppInitializer.StartApp (Xamarin.UITest.Platform platform) [0x00041] in <2cd1cd61003a486e92c6ffb9d58f1488>:0
at UI.Tests.TestDashboardDetailsPage.OneTimeSetUp () [0x00000] in <2cd1cd61003a486e92c6ffb9d58f1488>:0
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00032] in <4fdc5ed61a074cafb49fa42deb20d521>:0
--HttpRequestException
at System.Net.Http.HttpClientHandler+<SendAsync>d__63.MoveNext () [0x004ab] in <7e581108ecb143d78ca072a020c287c3>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0003e] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Net.Http.HttpClient+<SendAsyncWorker>d__47.MoveNext () [0x000ca] in <7e581108ecb143d78ca072a020c287c3>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0003e] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at Xamarin.UITest.XDB.Services.HttpService+<PostAsJsonAsync>c__async3`1+<PostAsJsonAsync>c__AnonStorey11+<PostAsJsonAsync>c__async10[T].MoveNext () [0x00094] in <1bd397951f434cd4913ddc08b7bc45af>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0003e] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at Xamarin.UITest.XDB.Services.HttpService+<ExecuteRequestAsync>c__async5.MoveNext () [0x0008b] in <1bd397951f434cd4913ddc08b7bc45af>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0003e] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at Xamarin.UITest.XDB.Services.HttpService+<RequestAsync>c__async4`1[T].MoveNext () [0x0031b] in <1bd397951f434cd4913ddc08b7bc45af>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0003e] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at Xamarin.UITest.XDB.Services.HttpService+<PostAsJsonAsync>c__async3`1[T].MoveNext () [0x00132] in <1bd397951f434cd4913ddc08b7bc45af>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0003e] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at Xamarin.UITest.XDB.Services.iOSDeviceAgentService+<RequestAsync>c__async14`1[T].MoveNext () [0x000be] in <1bd397951f434cd4913ddc08b7bc45af>:0
--WebException
at System.Net.HttpWebRequest.EndGetRequestStream (System.IAsyncResult asyncResult) [0x0003a] in <a24e193d5cf14a42ac00ebaea26ec7bc>:0
at System.Threading.Tasks.TaskFactory`1[TResult].FromAsyncCoreLogic (System.IAsyncResult iar, System.Func`2[T,TResult] endFunction, System.Action`1[T] endAction, System.Threading.Tasks.Task`1[TResult] promise, System.Boolean requiresSynchronization) [0x0000f] in <4fdc5ed61a074cafb49fa42deb20d521>:0
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0003e] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in <4fdc5ed61a074cafb49fa42deb20d521>:0
at System.Net.Http.HttpClientHandler+<SendAsync>d__63.MoveNext () [0x002e7] in <7e581108ecb143d78ca072a020c287c3>:0
--SocketException
at System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP) [0x000b6] in <a24e193d5cf14a42ac00ebaea26ec7bc>:0
at System.Net.WebConnection.Connect (System.Net.HttpWebRequest request) [0x0016d] in <a24e193d5cf14a42ac00ebaea26ec7bc>:0
回答1:
I use a script that launches the simulator and waits before executing tests - this seems to help with these sorts of issues.
Also has an optional .app file path if you want to install the .app file before executing the tests as well:
#!/bin/sh -
# Boots the iOS simulator using specified OS and simulator name
set -e
SIMULATOR_VERSION="${1:?You must pass an iOS version as the first argument}"
SIMULATOR_NAME="${2:?You must pass a simulator name as the second argument}"
OPTIONAL_APP_PATH="$3"
SIMULATOR_GUID="$(xcrun simctl list | grep -vi unavailable | sed -e "1,/^-- iOS $SIMULATOR_VERSION --\$/d" -e '/^-- .* --$/,$ d' | grep -E "^\s+$SIMULATOR_NAME \(" | sed -e 's/^[^(]*(//g' -e 's/).*//g' | tail -1)"
if [ -z "$SIMULATOR_GUID" ]; then
echo "ERROR: Could not find simulator GUID for $SIMULATOR_NAME" >&2
exit 123
fi
shutDownSimulator()
{
GUID=$1
echo "==> Shutting down simulator with GUID $GUID..."
if xcrun simctl shutdown "$GUID" ; then
sleep 10s
echo "==> Successfully shutdown desired simulator."
else
echo "==> Desired simulator is already in shutdown state."
fi
}
eraseSimulator()
{
GUID=$1
echo "==> Erasing..."
xcrun simctl erase "$GUID"
echo "==> Waiting for 30 seconds..."
sleep 30s
}
bootSimulator()
{
GUID=$1
echo "==> Booting..."
xcrun simctl boot "$GUID"
echo "==> Waiting for 30 seconds..."
sleep 30s
}
installOptionalAppFile()
{
GUID=$1
if [ -z "$OPTIONAL_APP_PATH" ] ; then
echo "==> No app file to install specified, continuing..."
else
if [ -e "$OPTIONAL_APP_PATH" ]
then
echo "==> Installing app file at $OPTIONAL_APP_PATH"
xcrun simctl install "$GUID" "$OPTIONAL_APP_PATH"
else
echo "==> App file was not found at path: $OPTIONAL_APP_PATH"
fi
fi
}
echo "==> Erasing and launching simulator with name: $SIMULATOR_NAME / iOS version: $SIMULATOR_VERSION / GUID: $SIMULATOR_GUID..."
shutDownSimulator "$SIMULATOR_GUID"
eraseSimulator "$SIMULATOR_GUID"
bootSimulator "$SIMULATOR_GUID"
echo "==> Launching Simulator app..."
open `xcode-select -p`/Applications/Simulator.app
echo "Waiting for simulator to boot for 120 seconds..."
sleep 120s
installOptionalAppFile "$SIMULATOR_GUID"
exit 0
2 minutes is probably excessive for wait time, but I do it just in case as some of my Mac Minis are a little old
回答2:
Answer to my own question. The issue is on XCode 9.3. Hope they fix this soon.
Known Issues
On macOS 10.13.4, booting iOS 11 and later in the Simulator may take several minutes the first time. (35628711)
SOURCE: https://developer.apple.com/library/content/releasenotes/DeveloperTools/RN-Xcode/Chapters/Introduction.html#//apple_ref/doc/uid/TP40001051-CH1-DontLinkElementID_1
回答3:
I too am having this issue with physical devices. I found that restarting the device is able to solve this problem. After restarting the device, the UITests are no longer failing on the first one. We are able to restart the device using a library called libimobiledevice
https://www.mankier.com/1/idevicediagnostics
I'm running the UITests from Jenkins and in the build script before the tests are run we restart the device
idevicediagnostics -u[deviceUDID] restart
sleep 90s
来源：https://stackoverflow.com/questions/50024536/xamarin-uitest-2-2-4-start-session-failed-on-the-first-test