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Do Not Modify Function Language for dotnet-isolated worker runtime in workflowApp #11486

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Do Not Modify Function Language for dotnet-isolated worker runtime in workflowApp #11486

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Do Not Modify Function Language for dotnet-isolated worker runtime in…
pravagar Nov 19, 2025
ae41f5d
Disabled verification of runtime language mismatch
pravagar Dec 4, 2025
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4 changes: 2 additions & 2 deletions src/WebJobs.Script/Host/ScriptHost.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -791,10 +791,10 @@ internal async Task<Collection<FunctionDescriptor>> GetFunctionDescriptorsAsync(
Collection<FunctionDescriptor> functionDescriptors = new Collection<FunctionDescriptor>();
if (!cancellationToken.IsCancellationRequested)
{
bool throwOnWorkerRuntimeAndPayloadMetadataMismatch = !(_environment.IsLogicApp() && _environment.IsLogicAppCodefulModeEnabled());
bool throwOnWorkerRuntimeAndPayloadMetadataMismatch = !_environment.IsLogicApp();

// this dotnet isolated specific logic is temporary to ensure in-proc payload compatibility with "dotnet-isolated" as the FUNCTIONS_WORKER_RUNTIME value.
if (string.Equals(workerRuntime, RpcWorkerConstants.DotNetIsolatedLanguageWorkerName, StringComparison.OrdinalIgnoreCase) && !_environment.IsPlaceholderModeEnabled())
if (!_environment.IsLogicApp() && string.Equals(workerRuntime, RpcWorkerConstants.DotNetIsolatedLanguageWorkerName, StringComparison.OrdinalIgnoreCase) && !_environment.IsPlaceholderModeEnabled())
{
bool payloadMatchesWorkerRuntime = ValidateAndLogRuntimeMismatch(functions, workerRuntime, _hostingConfigOptions, _logger);
if (!payloadMatchesWorkerRuntime)
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9 changes: 6 additions & 3 deletions test/WebJobs.Script.Tests.Integration/WebHostEndToEnd/MultiLanguageEndToEndTests.cs
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Expand Up @@ -123,14 +123,17 @@ public async Task CodelessFunction_CanUse_SingleJavaLanguageProviders()
/// Runs tests with Node language provider function.
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Copilot AI Nov 19, 2025

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The XML documentation comment "Runs tests with Node language provider function" is incomplete. The test now covers multiple scenarios including both C# (DotNetAssembly) and JavaScript (Node) language providers, with different worker runtime configurations (dotnet and dotnet-isolated). Consider updating the summary to reflect this, for example: "Runs tests with multiple language providers (C# and JavaScript) to verify workflowApp behavior with different worker runtimes."

Suggested change
/// Runs tests with Node language provider function.
/// Runs tests with multiple language providers (C# and JavaScript) to verify workflowApp behavior with different worker runtimes.

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/// </summary>
[Theory]
[InlineData(true)]
[InlineData(false)]
public async Task CodelessFunction_CanUse_SingleJavascriptLanguageProviders(bool enableDynamicWorkerResolution)
[InlineData(true, "dotnet")]
[InlineData(false, "dotnet")]
[InlineData(true, "dotnet-isolated")]
[InlineData(false, "dotnet-isolated")]
public async Task CodelessFunction_CanUse_SingleJavascriptLanguageProviders(bool enableDynamicWorkerResolution, string functionWorkerRuntime)
{
var sourceFunctionApp = Path.Combine(Environment.CurrentDirectory, "TestScripts", "NoFunction");
var settings = new Dictionary<string, string>()
{
[EnvironmentSettingNames.AppKind] = "workflowApp",
[EnvironmentSettingNames.FunctionWorkerRuntime] = functionWorkerRuntime,
};
var testEnvironment = new TestEnvironment(settings);

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