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Re-enable DotNet.Watcher.Tests #49642

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6dd5fa4
Re-enable DotNet.Watcher.Tests
Jul 3, 2025
148ea17
restore changes of WatchableApp.cs
Jul 16, 2025
588876b
Ignore the unstable case
Jul 16, 2025
612d787
Merge branch 'main' into dev/Simon/Fix_Issue_42921_Re-enableDotNetWat…
Jul 17, 2025
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29 changes: 26 additions & 3 deletions test/dotnet-watch.Tests/TestUtilities/WatchableApp.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -65,9 +65,9 @@ public async Task<string> AssertOutputLineStartsWith(string expectedPrefix, Pred
{
Logger.Log($"Test waiting for output: '{expectedPrefix}'", testPath, testLine);

var line = await Process.GetOutputLineAsync(
success: line => line.StartsWith(expectedPrefix, StringComparison.Ordinal),
failure: failure ?? new Predicate<string>(line => line.Contains(WatchErrorOutputEmoji, StringComparison.Ordinal)));
var line = await TryGetOutputLineWithDelayAsync(
expectedPrefix,
failure ?? new Predicate<string>(line => line.Contains(WatchErrorOutputEmoji, StringComparison.Ordinal)));

if (line == null)
{
Expand Down Expand Up @@ -171,5 +171,28 @@ public void SendKey(char c)
Process.Process.StandardInput.Write(c);
Process.Process.StandardInput.Flush();
}

private async Task<string> TryGetOutputLineWithDelayAsync(string expectedPrefix, Predicate<string> failure, int maxAttempts = 2)
{
for (int attempt = 0; attempt < maxAttempts; attempt++)
{
if (attempt > 0)
{
Logger.Log($"Retrying to find output with prefix: '{expectedPrefix}' (attempt {attempt + 1}/{maxAttempts})");
await Task.Delay(TimeSpan.FromSeconds(1));
}

var line = await Process.GetOutputLineAsync(
success: line => line.StartsWith(expectedPrefix, StringComparison.Ordinal),
failure: failure);

if (line is not null)
{
return line;
}
}

return null;
}
}
}
10 changes: 5 additions & 5 deletions test/dotnet-watch.Tests/Watch/GlobbingAppTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ public GlobbingAppTests(ITestOutputHelper logger)
{
}

[ConditionalTheory(Skip = "https://github.com/dotnet/sdk/issues/42921")]
[ConditionalTheory]
[InlineData(true)]
[InlineData(false)]
public async Task ChangeCompiledFile(bool usePollingWatcher)
Expand All @@ -34,7 +34,7 @@ public async Task ChangeCompiledFile(bool usePollingWatcher)
await AssertCompiledAppDefinedTypes(expected: 2);
}

[Fact(Skip = "https://github.com/dotnet/sdk/issues/42921")]
[Fact]
public async Task DeleteCompiledFile()
{
var testAsset = TestAssets.CopyTestAsset(AppName)
Expand All @@ -51,7 +51,7 @@ public async Task DeleteCompiledFile()
await AssertCompiledAppDefinedTypes(expected: 1);
}

[Fact(Skip = "https://github.com/dotnet/sdk/issues/42921")]
[Fact]
public async Task DeleteSourceFolder()
{
var testAsset = TestAssets.CopyTestAsset(AppName)
Expand All @@ -68,7 +68,7 @@ public async Task DeleteSourceFolder()
await AssertCompiledAppDefinedTypes(expected: 1);
}

[Fact(Skip = "https://github.com/dotnet/sdk/issues/42921")]
[Fact]
public async Task RenameCompiledFile()
{
var testAsset = TestAssets.CopyTestAsset(AppName)
Expand All @@ -85,7 +85,7 @@ public async Task RenameCompiledFile()
await App.AssertStarted();
}

[Fact(Skip = "https://github.com/dotnet/sdk/issues/42921")]
[Fact]
public async Task ChangeExcludedFile()
{
var testAsset = TestAssets.CopyTestAsset(AppName)
Expand Down
2 changes: 1 addition & 1 deletion test/dotnet-watch.Tests/Watch/NoDepsAppTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ public class NoDepsAppTests(ITestOutputHelper logger) : DotNetWatchTestBase(logg
{
private const string AppName = "WatchNoDepsApp";

[Fact(Skip = "https://github.com/dotnet/sdk/issues/42921")]
[Fact]
public async Task RestartProcessOnFileChange()
{
var testAsset = TestAssets.CopyTestAsset(AppName)
Expand Down
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