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Merged
merged 9 commits into from
Aug 28, 2018
Merged

Make AppVeyor tests pass #733

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296c29c
[Ignore] Re-enable AppVeyor tests that might pass now
rjmholt Aug 24, 2018
5cdc81e
[Ignore] Add timeouts to asynchronous tests
rjmholt Aug 24, 2018
cf83cfe
[Ignore] Skip hanging test
rjmholt Aug 24, 2018
0bdbbe0
Revert "[Ignore] Add timeouts to asynchronous tests"
rjmholt Aug 24, 2018
8d755e2
Revert "Revert "[Ignore] Add timeouts to asynchronous tests""
rjmholt Aug 24, 2018
ed86689
Use better timeout mechanism, force task onto new thread
rjmholt Aug 28, 2018
ea2ebad
[Ignore] Change asynchronous language service tests to execute in new…
rjmholt Aug 28, 2018
0e0325a
Revert "[Ignore] Change asynchronous language service tests to execut…
rjmholt Aug 28, 2018
7abfc2a
Revert "Use better timeout mechanism, force task onto new thread"
rjmholt Aug 28, 2018
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6 changes: 3 additions & 3 deletions test/PowerShellEditorServices.Test.Host/LanguageServerTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -90,7 +90,7 @@ await this.WaitForEvent(
string.IsNullOrEmpty(diagnostics.Diagnostics[0].Message));
}

[Fact(Skip = "Skipping until Script Analyzer integration is added back")]
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lol

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Yeah

[Fact]
public async Task ServiceReturnsSemanticMarkers()
{
// Send the 'didOpen' event
Expand Down Expand Up @@ -292,7 +292,7 @@ await this.SendRequest(
Assert.Equal(12, locations[2].Range.Start.Character);
}

[Fact]
[Fact(Skip = "AppVeyor is currently hanging on this test it seems")]
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is this test the culprit?

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@rjmholt rjmholt Aug 27, 2018 •
edited
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It seems to be. It's strange. Just skipping this test doesn't work, and just putting timeouts on the async tests doesn't work. But both together passes, consistently. Naturally, "if you fixed it but you don't know how, you didn't fix it"...

For now I just want to get tests running and passing in CI, but I think this is another signal that reworking the tests is needed

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I wonder if the timeout isn't doing anything for some tests because there isn't an await soon enough. From what I understand async methods are ran on the same thread they are started until they hit the first await keyword. There may be something that appears to be async but doesn't actually use the keyword enough.

If you want you could try forcing the test into another thread by running it with Task.Run

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It's back to hanging again 😠

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@SeeminglyScience SeeminglyScience Aug 28, 2018 •
edited
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The initial invocation of the task needs to be in the Task.Run block. My guess is that the method never actually returns a task in the first place, it just hangs before it hits an await.

If you wanted to make it a utility method you could do something like

async Task<T> RunWithTimeout<T>(Func<Task<T>> test, int timeout)
{
    ((IAsyncResult)Task.Run(test)).WaitOne(..etc

Then call it with

RunWithTimeout(async () => await MyTestName(), 1000);

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Gotcha!

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Bugger, still hanging

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Ok, reverting back to the last commit that passed this passes again... 😒

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I'm just going to merge this for now so the other PRs can test properly

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async methods are ran on the same thread they are started until they hit the first await keyword.

Even then, IIRC an async operation can complete during the initial awaited async call if the operation determines it can return the result right away.

public async Task FindsNoReferencesOfEmptyLine()
{
await this.SendOpenFileEvent("TestFiles\\FindReferences.ps1");
Expand Down Expand Up @@ -548,7 +548,7 @@ await this.SendRequest(
Assert.Equal(2, highlights[1].Range.Start.Line);
}

[Fact(Skip = "This test hangs in VSTS for some reason...")]
[Fact]
public async Task GetsParameterHintsOnCommand()
{
await this.SendOpenFileEvent("TestFiles\\FindReferences.ps1");
Expand Down
57 changes: 35 additions & 22 deletions test/PowerShellEditorServices.Test/Language/LanguageServiceTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -44,20 +44,20 @@ public async Task LanguageServiceCompletesCommandInFile()
{
CompletionResults completionResults =
await this.GetCompletionResults(
CompleteCommandInFile.SourceDetails);
CompleteCommandInFile.SourceDetails).RunWithTimeout();

Assert.NotEqual(0, completionResults.Completions.Length);
Assert.Equal(
CompleteCommandInFile.ExpectedCompletion,
completionResults.Completions[0]);
}

[Fact(Skip = "This test does not run correctly on AppVeyor, need to investigate.")]
[Fact]
public async Task LanguageServiceCompletesCommandFromModule()
{
CompletionResults completionResults =
await this.GetCompletionResults(
CompleteCommandFromModule.SourceDetails);
CompleteCommandFromModule.SourceDetails).RunWithTimeout();

Assert.NotEqual(0, completionResults.Completions.Length);
Assert.Equal(
Expand All @@ -70,7 +70,7 @@ public async Task LanguageServiceCompletesVariableInFile()
{
CompletionResults completionResults =
await this.GetCompletionResults(
CompleteVariableInFile.SourceDetails);
CompleteVariableInFile.SourceDetails).RunWithTimeout();

Assert.Equal(1, completionResults.Completions.Length);
Assert.Equal(
Expand All @@ -83,7 +83,7 @@ public async Task LanguageServiceCompletesAttributeValue()
{
CompletionResults completionResults =
await this.GetCompletionResults(
CompleteAttributeValue.SourceDetails);
CompleteAttributeValue.SourceDetails).RunWithTimeout();

Assert.NotEqual(0, completionResults.Completions.Length);
Assert.Equal(
Expand All @@ -96,7 +96,7 @@ public async Task LanguageServiceCompletesFilePath()
{
CompletionResults completionResults =
await this.GetCompletionResults(
CompleteFilePath.SourceDetails);
CompleteFilePath.SourceDetails).RunWithTimeout();

Assert.NotEqual(0, completionResults.Completions.Length);
Assert.Equal(
Expand All @@ -109,7 +109,7 @@ public async Task LanguageServiceFindsParameterHintsOnCommand()
{
ParameterSetSignatures paramSignatures =
await this.GetParamSetSignatures(
FindsParameterSetsOnCommand.SourceDetails);
FindsParameterSetsOnCommand.SourceDetails).RunWithTimeout();

Assert.NotNull(paramSignatures);
Assert.Equal("Get-Process", paramSignatures.CommandName);
Expand All @@ -121,7 +121,7 @@ public async Task LanguageServiceFindsCommandForParamHintsWithSpaces()
{
ParameterSetSignatures paramSignatures =
await this.GetParamSetSignatures(
FindsParameterSetsOnCommandWithSpaces.SourceDetails);
FindsParameterSetsOnCommandWithSpaces.SourceDetails).RunWithTimeout();

Assert.NotNull(paramSignatures);
Assert.Equal("Write-Host", paramSignatures.CommandName);
Expand All @@ -133,7 +133,7 @@ public async Task LanguageServiceFindsFunctionDefinition()
{
GetDefinitionResult definitionResult =
await this.GetDefinition(
FindsFunctionDefinition.SourceDetails);
FindsFunctionDefinition.SourceDetails).RunWithTimeout();

SymbolReference definition = definitionResult.FoundDefinition;
Assert.Equal(1, definition.ScriptRegion.StartLineNumber);
Expand All @@ -146,7 +146,7 @@ public async Task LanguageServiceFindsFunctionDefinitionInDotSourceReference()
{
GetDefinitionResult definitionResult =
await this.GetDefinition(
FindsFunctionDefinitionInDotSourceReference.SourceDetails);
FindsFunctionDefinitionInDotSourceReference.SourceDetails).RunWithTimeout();

SymbolReference definition = definitionResult.FoundDefinition;
Assert.True(
Expand All @@ -167,7 +167,7 @@ await this.GetDefinition(
new Workspace(this.powerShellContext.LocalPowerShellVersion.Version, Logging.NullLogger)
{
WorkspacePath = Path.Combine(baseSharedScriptPath, @"References")
});
}).RunWithTimeout();
var definition = definitionResult.FoundDefinition;
Assert.EndsWith("ReferenceFileE.ps1", definition.FilePath);
Assert.Equal("My-FunctionInFileE", definition.SymbolName);
Expand All @@ -178,7 +178,7 @@ public async Task LanguageServiceFindsVariableDefinition()
{
GetDefinitionResult definitionResult =
await this.GetDefinition(
FindsVariableDefinition.SourceDetails);
FindsVariableDefinition.SourceDetails).RunWithTimeout();

SymbolReference definition = definitionResult.FoundDefinition;
Assert.Equal(6, definition.ScriptRegion.StartLineNumber);
Expand Down Expand Up @@ -215,7 +215,7 @@ public async Task LanguageServiceFindsReferencesOnCommandWithAlias()
{
FindReferencesResult refsResult =
await this.GetReferences(
FindsReferencesOnBuiltInCommandWithAlias.SourceDetails);
FindsReferencesOnBuiltInCommandWithAlias.SourceDetails).RunWithTimeout();

Assert.Equal(6, refsResult.FoundReferences.Count());
Assert.Equal("Get-ChildItem", refsResult.FoundReferences.Last().SymbolName);
Expand All @@ -227,7 +227,7 @@ public async Task LanguageServiceFindsReferencesOnAlias()
{
FindReferencesResult refsResult =
await this.GetReferences(
FindsReferencesOnBuiltInCommandWithAlias.SourceDetails);
FindsReferencesOnBuiltInCommandWithAlias.SourceDetails).RunWithTimeout();

Assert.Equal(6, refsResult.FoundReferences.Count());
Assert.Equal("Get-ChildItem", refsResult.FoundReferences.Last().SymbolName);
Expand All @@ -240,7 +240,7 @@ public async Task LanguageServiceFindsReferencesOnFileWithReferencesFileB()
{
FindReferencesResult refsResult =
await this.GetReferences(
FindsReferencesOnFunctionMultiFileDotSourceFileB.SourceDetails);
FindsReferencesOnFunctionMultiFileDotSourceFileB.SourceDetails).RunWithTimeout();

Assert.Equal(4, refsResult.FoundReferences.Count());
}
Expand All @@ -250,7 +250,7 @@ public async Task LanguageServiceFindsReferencesOnFileWithReferencesFileC()
{
FindReferencesResult refsResult =
await this.GetReferences(
FindsReferencesOnFunctionMultiFileDotSourceFileC.SourceDetails);
FindsReferencesOnFunctionMultiFileDotSourceFileC.SourceDetails).RunWithTimeout();
Assert.Equal(4, refsResult.FoundReferences.Count());
}

Expand All @@ -261,7 +261,7 @@ public async Task LanguageServiceFindsDetailsForBuiltInCommand()
await this.languageService.FindSymbolDetailsAtLocation(
this.GetScriptFile(FindsDetailsForBuiltInCommand.SourceDetails),
FindsDetailsForBuiltInCommand.SourceDetails.StartLineNumber,
FindsDetailsForBuiltInCommand.SourceDetails.StartColumnNumber);
FindsDetailsForBuiltInCommand.SourceDetails.StartColumnNumber).RunWithTimeout();

Assert.NotNull(symbolDetails.Documentation);
Assert.NotEqual("", symbolDetails.Documentation);
Expand Down Expand Up @@ -344,7 +344,7 @@ private async Task<CompletionResults> GetCompletionResults(ScriptRegion scriptRe
await this.languageService.GetCompletionsInFile(
GetScriptFile(scriptRegion),
scriptRegion.StartLineNumber,
scriptRegion.StartColumnNumber);
scriptRegion.StartColumnNumber).RunWithTimeout();
}

private async Task<ParameterSetSignatures> GetParamSetSignatures(ScriptRegion scriptRegion)
Expand All @@ -353,7 +353,7 @@ private async Task<ParameterSetSignatures> GetParamSetSignatures(ScriptRegion sc
await this.languageService.FindParameterSetsInFile(
GetScriptFile(scriptRegion),
scriptRegion.StartLineNumber,
scriptRegion.StartColumnNumber);
scriptRegion.StartColumnNumber).RunWithTimeout();
}

private async Task<GetDefinitionResult> GetDefinition(ScriptRegion scriptRegion, Workspace workspace)
Expand All @@ -372,12 +372,12 @@ private async Task<GetDefinitionResult> GetDefinition(ScriptRegion scriptRegion,
await this.languageService.GetDefinitionOfSymbol(
scriptFile,
symbolReference,
workspace);
workspace).RunWithTimeout();
}

private async Task<GetDefinitionResult> GetDefinition(ScriptRegion scriptRegion)
{
return await GetDefinition(scriptRegion, this.workspace);
return await GetDefinition(scriptRegion, this.workspace).RunWithTimeout();
}

private async Task<FindReferencesResult> GetReferences(ScriptRegion scriptRegion)
Expand All @@ -396,7 +396,7 @@ private async Task<FindReferencesResult> GetReferences(ScriptRegion scriptRegion
await this.languageService.FindReferencesOfSymbol(
symbolReference,
this.workspace.ExpandScriptReferences(scriptFile),
this.workspace);
this.workspace).RunWithTimeout();
}

private FindOccurrencesResult GetOccurrences(ScriptRegion scriptRegion)
Expand All @@ -415,4 +415,17 @@ private FindOccurrencesResult FindSymbolsInFile(ScriptRegion scriptRegion)
GetScriptFile(scriptRegion));
}
}

internal static class TaskExtensions
{
public static async Task<T> RunWithTimeout<T>(this Task<T> task, int timeoutMillis = 10000)
{
if (await Task.WhenAny(task, Task.Delay(timeoutMillis)) == task)
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Might be a little easier to use the tasks' AsyncWaitHandle

if (!((IAsyncResult)task).AsyncWaitHandle.WaitOne(timeoutMillis))
{
    throw new TimeoutException();
}

return await task;

Don't know which route is better, just giving an alternate

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Ah! That definitely feels more "as designed" than my abuse of tasks

{
return task.Result;
}

throw new TimeoutException();
}
}
}
6 changes: 3 additions & 3 deletions test/PowerShellEditorServices.Test/Utility/AsyncDebouncerTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ namespace Microsoft.PowerShell.EditorServices.Test.Utility
{
public class AsyncDebouncerTests
{
[Fact(Skip = "TODO: This test fails in the new build system, need to investigate!")]
[Fact]
public async Task AsyncDebouncerFlushesAfterInterval()
{
TestAsyncDebouncer debouncer = new TestAsyncDebouncer();
Expand All @@ -31,7 +31,7 @@ public async Task AsyncDebouncerFlushesAfterInterval()

Assert.Equal(new List<int> { 1, 2, 3 }, debouncer.FlushedBuffer);
Assert.True(
debouncer.TimeToFlush >
debouncer.TimeToFlush >
TimeSpan.FromMilliseconds(TestAsyncDebouncer.Interval),
"Debouncer flushed before interval lapsed.");

Expand All @@ -40,7 +40,7 @@ public async Task AsyncDebouncerFlushesAfterInterval()
Assert.Equal(new List<int> { 4, 5, 6 }, debouncer.FlushedBuffer);
}

[Fact(Skip = "TODO: This test fails in the new build system, need to investigate!")]
[Fact]
public async Task AsyncDebouncerRestartsAfterInvoke()
{
TestAsyncRestartDebouncer debouncer = new TestAsyncRestartDebouncer();
Expand Down