Enabling use of ASP.NET health check hosted service

Author: fabiocav

release_notes.md

@@ -2,6 +2,7 @@
 <!-- Please add your release notes in the following format:
 - My change description (#PR)
 -->
+- Enabled the use of ASP.NET Health Check hosted service
 - Update Python Worker to 1.1.6 [Release Note](https://github.com/Azure/azure-functions-python-worker/releases/tag/1.1.6)
 - Update Python Library to 1.4.0 [Release Note](https://github.com/Azure/azure-functions-python-library/releases/tag/1.4.0)
 - Update PowerShell Worker to 3.0.552 (PS6) [Release Note](https://github.com/Azure/azure-functions-powershell-worker/releases/tag/v3.0.552) and 3.0.549 (PS7) [Release Note](https://github.com/Azure/azure-functions-powershell-worker/releases/tag/v3.0.549)

src/WebJobs.Script.WebHost/DependencyInjection/DependencyValidator/DependencyValidator.cs

@@ -53,7 +53,8 @@ private static ExpectedDependencyBuilder CreateExpectedDependencies()
                 .Optional<FuncAppFileProvisioningService>() // Used by powershell.
                 .Optional<JobHostService>() // Missing when host is offline.
                 .Optional<FunctionsSyncService>() // Conditionally registered.
-                .OptionalExternal("Microsoft.AspNetCore.DataProtection.Internal.DataProtectionHostedService", "Microsoft.AspNetCore.DataProtection", "adb9793829ddae60"); // Popularly-registered by DataProtection.
+                .OptionalExternal("Microsoft.AspNetCore.DataProtection.Internal.DataProtectionHostedService", "Microsoft.AspNetCore.DataProtection", "adb9793829ddae60") // Popularly-registered by DataProtection.
+                .OptionalExternal("Microsoft.Extensions.Diagnostics.HealthChecks.HealthCheckPublisherHostedService", "Microsoft.Extensions.Diagnostics.HealthChecks", "adb9793829ddae60"); // Popularly-registered by Health Check Monitor.
 
             expected.ExpectSubcollection<ILoggerProvider>()
                 .Expect<AzureMonitorDiagnosticLoggerProvider>()
@@ -92,12 +93,12 @@ private static string FormatServiceDescriptor(ServiceDescriptor descriptor)
 
             if (descriptor.ImplementationInstance != null)
             {
-                format += $", {nameof(descriptor.ImplementationInstance)}: {descriptor.ImplementationInstance.GetType()}";
+                format += $", {nameof(descriptor.ImplementationInstance)}: {descriptor.ImplementationInstance.GetType().AssemblyQualifiedName}";
             }
 
             if (descriptor.ImplementationType != null)
             {
-                format += $", {nameof(descriptor.ImplementationType)}: {descriptor.ImplementationType}";
+                format += $", {nameof(descriptor.ImplementationType)}: {descriptor.ImplementationType.AssemblyQualifiedName}";
             }
 
             return format;

test/WebJobs.Script.Tests/Configuration/DefaultDependencyValidatorTests.cs

@@ -51,10 +51,10 @@ public async Task Validator_InvalidServices_LogsError()
 
             IEnumerable<string> messageLines = invalidServicesMessage.Exception.Message.Split(Environment.NewLine, StringSplitOptions.RemoveEmptyEntries).Select(p => p.Trim());
             Assert.Equal(5, messageLines.Count());
-            Assert.Contains(messageLines, p => p.StartsWith("[Invalid]") && p.EndsWith(nameof(MyHostedService)));
-            Assert.Contains(messageLines, p => p.StartsWith("[Invalid]") && p.EndsWith(nameof(MyScriptEventManager)));
-            Assert.Contains(messageLines, p => p.StartsWith("[Invalid]") && p.EndsWith(nameof(MyMetricsLogger)));
-            Assert.Contains(messageLines, p => p.StartsWith("[Missing]") && p.EndsWith(nameof(SystemLoggerProvider)));
+            Assert.Contains(messageLines, p => p.StartsWith("[Invalid]") && p.EndsWith(typeof(MyHostedService).AssemblyQualifiedName));
+            Assert.Contains(messageLines, p => p.StartsWith("[Invalid]") && p.EndsWith(typeof(MyScriptEventManager).AssemblyQualifiedName));
+            Assert.Contains(messageLines, p => p.StartsWith("[Invalid]") && p.EndsWith(typeof(MyMetricsLogger).AssemblyQualifiedName));
+            Assert.Contains(messageLines, p => p.StartsWith("[Missing]") && p.EndsWith(typeof(SystemLoggerProvider).AssemblyQualifiedName));
         }
 
         [Fact]