Yaml manifest schemaheader validation for V.1.10.0 and above (#5126)

### Enable schema header validation for YAML manifests from version
1.10.0 onwards.

**YAML Manifest Validation Changes:**

1. Introduce functions to search, parse, and validate schema headers in
YAML manifests.
2. Add/Update structs and enums to support schema header validation. 
3. Add new error messages and validation options, including treating
schema header validation errors as warnings.

Schema Header Validation Includes:
1. Validate presence of Manifest Schema Header.
2. Ensure Schema Header format correctness.
3. Verify Schema Header URL Pattern accuracy.
4. Confirm Schema Header Manifest Type matches ManifestType Property.
5. Check Schema Header Manifest Version matches ManifestVersion
Property.

**WinGet CLI Validation Command Changes:**

- Treat schema header validation errors as warnings for 'winget validate
--manifest <<path>>' command
- Introduced a new option `SchemaHeaderValidationAsWarning` to the
`validateOption` object and set it to `true`.
- This change treats schema header validation issues as warnings instead
of errors, making the validation process more lenient.

[NOTE:]
1. SchemaHeaderValidation errors should be treated as warnings for the
winget CLI validate command.
2. SchemaHeaderValidation errors should be treated as errors for
wingetsvc community manifests.

**[Test Coverage:]**
- Added new test data files to validate various schema header errors in
YAML manifests, including
   - invalid headers,
   -  type mismatches,
   - version mismatches,
   - missing headers, and
   - URL pattern mismatches.
- Added test coverage for WinGet Utils Interop binary and WinGet CLI
Validated command

**[How Validated:]**
- Compiled the AppInstaller end-to-end solution incorporating the
changes.
- Performed the YAML manifest validation tests, WinGet Utils tests, and
WinGet CLI Validate command tests, ensuring all tests passed.
- Locally validated the winget CLI validation command with various
schema header errors, ensuring they are treated as warnings and that no
warnings are reported for a valid manifest.

**[Test Results:]**

YAML Manifest Validation Test Results:

![image](https://github.com/user-attachments/assets/c474a9ab-718c-482e-81fb-7fc385f37190)

WinGet Utils Interop Test Results:

![image](https://github.com/user-attachments/assets/f5033c71-16e1-44a7-a9a7-886066f9e26d)

Validate Command Test Results:

![image](https://github.com/user-attachments/assets/4726022c-7a8b-4885-abba-3f776d3ded4e)


<!-- To check a checkbox place an "x" between the brackets. e.g: [x] -->

- [x] I have signed the [Contributor License
Agreement](https://cla.opensource.microsoft.com/microsoft/winget-pkgs).
- [x] This pull request is related to an issue.

-----

###### Microsoft Reviewers: [Open in
CodeFlow](https://microsoft.github.io/open-pr/?codeflow=https://github.com/microsoft/winget-cli/pull/5126)

---------

Co-authored-by: Madhusudhan Gumbalapura Sudarshan <[email protected]>

src/AppInstallerCLICore/Commands/ValidateCommand.cpp

@@ -46,6 +46,7 @@ namespace AppInstaller::CLI
             {
                 ManifestValidateOption validateOption;
                 validateOption.FullValidation = true;
+                validateOption.SchemaHeaderValidationAsWarning = true;
                 validateOption.ThrowOnWarning = !(context.Args.Contains(Execution::Args::Type::IgnoreWarnings));
                 auto manifest = YamlParser::CreateFromPath(inputFile, validateOption);
 

src/AppInstallerCLIE2ETests/TestData/Manifests/TestGoodManifestV1_10-SchemaHeader.yaml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.singleton.1.10.0.schema.json
+PackageIdentifier: AppInstallerCliTest.SchemaHeader
+PackageVersion: 1.0.0.0
+PackageLocale: en-US
+PackageName: AppInstaller Test Schema Header
+Publisher: Microsoft Corporation
+License: Test
+ShortDescription: This manifest with schema header
+
+Installers: 
+  - Architecture: x86
+    InstallerUrl: https://ThisIsNotUsed
+    InstallerType: msi
+    InstallerSha256: 65DB2F2AC2686C7F2FD69D4A4C6683B888DC55BFA20A0E32CA9F838B51689A3B
+ManifestType: singleton
+ManifestVersion: 1.10.0

src/AppInstallerCLIE2ETests/TestData/Manifests/TestWarningManifestV1_10-SchemaHeaderInvalid.yaml

@@ -0,0 +1,16 @@
+# yaml-language-server= $schema=https://aka.ms/winget-manifest.singleton.1.10.0.schema.json
+PackageIdentifier: AppInstallerCliTest.SchemaHeaderInvalid
+PackageVersion: 1.0.0.0
+PackageLocale: en-US
+PackageName: AppInstaller Test Schema Header Invalid
+Publisher: Microsoft Corporation
+License: Test
+ShortDescription: This manifest has an invalid schema header
+
+Installers: 
+  - Architecture: x86
+    InstallerUrl: https://ThisIsNotUsed
+    InstallerType: msi
+    InstallerSha256: 65DB2F2AC2686C7F2FD69D4A4C6683B888DC55BFA20A0E32CA9F838B51689A3B
+ManifestType: singleton
+ManifestVersion: 1.10.0

src/AppInstallerCLIE2ETests/TestData/Manifests/TestWarningManifestV1_10-SchemaHeaderManifestTypeMismatch.yaml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.installer.1.10.0.schema.json
+PackageIdentifier: AppInstallerCliTest.SchemaHeaderManifestTypeMismatch
+PackageVersion: 1.0.0.0
+PackageLocale: en-US
+PackageName: AppInstaller Test Schema Header ManifestType Mismatch
+Publisher: Microsoft Corporation
+License: Test
+ShortDescription: This manifest has a mismatched ManisfestType in the schema header
+
+Installers: 
+  - Architecture: x86
+    InstallerUrl: https://ThisIsNotUsed
+    InstallerType: msi
+    InstallerSha256: 65DB2F2AC2686C7F2FD69D4A4C6683B888DC55BFA20A0E32CA9F838B51689A3B
+ManifestType: singleton
+ManifestVersion: 1.10.0

src/AppInstallerCLIE2ETests/TestData/Manifests/TestWarningManifestV1_10-SchemaHeaderNotFound.yaml

@@ -0,0 +1,15 @@
+PackageIdentifier: AppInstallerCliTest.SchemaHeaderNotFound
+PackageVersion: 1.0.0.0
+PackageLocale: en-US
+PackageName: AppInstaller Test Schema Header Not Found
+Publisher: Microsoft Corporation
+License: Test
+ShortDescription: This manifest has a missing schema header
+
+Installers: 
+  - Architecture: x86
+    InstallerUrl: https://ThisIsNotUsed
+    InstallerType: msi
+    InstallerSha256: 65DB2F2AC2686C7F2FD69D4A4C6683B888DC55BFA20A0E32CA9F838B51689A3B
+ManifestType: singleton
+ManifestVersion: 1.10.0

src/AppInstallerCLIE2ETests/TestData/Manifests/TestWarningManifestV1_10-SchemaHeaderURLPatternMismatch.yaml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest-invalid.singleton.1.10.0.schema.json
+PackageIdentifier: AppInstallerCliTest.SchemaHeaderURLPatternMismatch
+PackageVersion: 1.0.0.0
+PackageLocale: en-US
+PackageName: AppInstaller Test Schema Header URL Pattern Mismatch
+Publisher: Microsoft Corporation
+License: Test
+ShortDescription: This manifest has a mismatched schema header URL pattern
+
+Installers: 
+  - Architecture: x86
+    InstallerUrl: https://ThisIsNotUsed
+    InstallerType: msi
+    InstallerSha256: 65DB2F2AC2686C7F2FD69D4A4C6683B888DC55BFA20A0E32CA9F838B51689A3B
+ManifestType: singleton
+ManifestVersion: 1.10.0

src/AppInstallerCLIE2ETests/TestData/Manifests/TestWarningManifestV1_10-SchemaHeaderVersionMismatch.yaml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.singleton.1.9.0.schema.json
+PackageIdentifier: AppInstallerCliTest.SchemaHeaderVersionMismatch
+PackageVersion: 1.0.0.0
+PackageLocale: en-US
+PackageName: AppInstaller Test Schema Header ManifestVersion Mismatch
+Publisher: Microsoft Corporation
+License: Test
+ShortDescription: This manifest has a mismatched ManisfestVersion in the schema header
+
+Installers: 
+  - Architecture: x86
+    InstallerUrl: https://ThisIsNotUsed
+    InstallerType: msi
+    InstallerSha256: 65DB2F2AC2686C7F2FD69D4A4C6683B888DC55BFA20A0E32CA9F838B51689A3B
+ManifestType: singleton
+ManifestVersion: 1.10.0

src/AppInstallerCLIE2ETests/ValidateCommand.cs

@@ -80,5 +80,47 @@ public void ValidateManifestDoesNotExist()
             Assert.AreEqual(Constants.ErrorCode.ERROR_PATH_NOT_FOUND, result.ExitCode);
             Assert.True(result.StdOut.Contains("Path does not exist"));
         }
+
+        /// <summary>
+        /// Test validate manifest with invalid schema and expect warnings.
+        /// </summary>
+        [Test]
+        public void ValidateManifestV1_10_SchemaHeaderExpectWarnings()
+        {
+            var result = TestCommon.RunAICLICommand("validate", TestCommon.GetTestDataFile("Manifests\\TestWarningManifestV1_10-SchemaHeaderNotFound.yaml"));
+            Assert.AreEqual(Constants.ErrorCode.ERROR_MANIFEST_VALIDATION_WARNING, result.ExitCode);
+            Assert.True(result.StdOut.Contains("Manifest validation succeeded with warnings."));
+            Assert.True(result.StdOut.Contains("Manifest Warning: Schema header not found."));
+
+            result = TestCommon.RunAICLICommand("validate", TestCommon.GetTestDataFile("Manifests\\TestWarningManifestV1_10-SchemaHeaderInvalid.yaml"));
+            Assert.AreEqual(Constants.ErrorCode.ERROR_MANIFEST_VALIDATION_WARNING, result.ExitCode);
+            Assert.True(result.StdOut.Contains("Manifest validation succeeded with warnings."));
+            Assert.True(result.StdOut.Contains("Manifest Warning: The schema header is invalid. Please verify that the schema header is present and formatted correctly."));
+
+            result = TestCommon.RunAICLICommand("validate", TestCommon.GetTestDataFile("Manifests\\TestWarningManifestV1_10-SchemaHeaderURLPatternMismatch.yaml"));
+            Assert.AreEqual(Constants.ErrorCode.ERROR_MANIFEST_VALIDATION_WARNING, result.ExitCode);
+            Assert.True(result.StdOut.Contains("Manifest validation succeeded with warnings."));
+            Assert.True(result.StdOut.Contains("Manifest Warning: The schema header URL does not match the expected pattern"));
+
+            result = TestCommon.RunAICLICommand("validate", TestCommon.GetTestDataFile("Manifests\\TestWarningManifestV1_10-SchemaHeaderManifestTypeMismatch.yaml"));
+            Assert.AreEqual(Constants.ErrorCode.ERROR_MANIFEST_VALIDATION_WARNING, result.ExitCode);
+            Assert.True(result.StdOut.Contains("Manifest validation succeeded with warnings."));
+            Assert.True(result.StdOut.Contains("Manifest Warning: The manifest type in the schema header does not match the ManifestType property value in the manifest."));
+
+            result = TestCommon.RunAICLICommand("validate", TestCommon.GetTestDataFile("Manifests\\TestWarningManifestV1_10-SchemaHeaderVersionMismatch.yaml"));
+            Assert.AreEqual(Constants.ErrorCode.ERROR_MANIFEST_VALIDATION_WARNING, result.ExitCode);
+            Assert.True(result.StdOut.Contains("Manifest validation succeeded with warnings."));
+            Assert.True(result.StdOut.Contains("Manifest Warning: The manifest version in the schema header does not match the ManifestVersion property value in the manifest."));
+        }
+
+        /// <summary>
+        /// Test validate manifest with valid schema header.
+        /// </summary>
+        [Test]
+        public void ValidateManifestV1_10_SchemaHeaderExpectNoWarning()
+        {
+            var result = TestCommon.RunAICLICommand("validate", TestCommon.GetTestDataFile("Manifests\\TestGoodManifestV1_10-SchemaHeader.yaml"));
+            Assert.AreEqual(Constants.ErrorCode.S_OK, result.ExitCode);
+        }
     }
 }

src/AppInstallerCLIE2ETests/WinGetUtil/WinGetUtilManifest.cs

@@ -1,4 +1,4 @@
-// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
 // <copyright file="WinGetUtilManifest.cs" company="Microsoft Corporation">
 //     Copyright (c) Microsoft Corporation. Licensed under the MIT License.
 // </copyright>
@@ -80,6 +80,85 @@ public void WinGetUtil_ValidateManifest_Success(WinGetUtilWrapper.CreateManifest
 
             // Close manifest
             WinGetUtilWrapper.WinGetCloseManifest(manifestHandle);
-        }
-    }
+        }
+
+        /// <summary>
+        /// Test validate manifest with schema header.
+        /// </summary>
+        /// <param name="createManifestOption">Create manifest options.</param>
+        [Test]
+        [TestCase(WinGetUtilWrapper.CreateManifestOption.NoValidation)]
+        [TestCase(WinGetUtilWrapper.CreateManifestOption.SchemaAndSemanticValidation)]
+        public void WinGetUtil_ValidateManifest_V1_10_WithSchemaHeader_Success(WinGetUtilWrapper.CreateManifestOption createManifestOption)
+        {
+            string manifestsFilePath = TestCommon.GetTestDataFile(@"Manifests\TestGoodManifestV1_10-SchemaHeader.yaml");
+
+            // Create manifest
+            WinGetUtilWrapper.WinGetCreateManifest(
+                manifestsFilePath,
+                out bool succeeded,
+                out IntPtr manifestHandle,
+                out string createFailureMessage,
+                string.Empty,
+                createManifestOption);
+
+            Assert.True(succeeded);
+            Assert.AreNotEqual(IntPtr.Zero, manifestHandle);
+            Assert.IsNull(createFailureMessage);
+
+            // Close manifest
+            WinGetUtilWrapper.WinGetCloseManifest(manifestHandle);
+        }
+
+        /// <summary>
+        /// Test validate manifest with schema header for failure scenarios.
+        /// </summary>
+        /// <param name="createManifestOption">Create manifest options.</param>
+        [Test]
+        [TestCase(WinGetUtilWrapper.CreateManifestOption.SchemaAndSemanticValidation)]
+        public void WinGetUtil_ValidateManifest_V1_10_WithSchemaHeader_Failure(WinGetUtilWrapper.CreateManifestOption createManifestOption)
+        {
+            // Schema header not found
+            string manifestsFilePath = TestCommon.GetTestDataFile(@"Manifests\TestWarningManifestV1_10-SchemaHeaderNotFound.yaml");
+            string expectedError = "Manifest Error: Schema header not found.";
+            ValidateSchemaHeaderFailure(manifestsFilePath, createManifestOption, expectedError);
+
+            // Schema header invalid
+            manifestsFilePath = TestCommon.GetTestDataFile(@"Manifests\TestWarningManifestV1_10-SchemaHeaderInvalid.yaml");
+            expectedError = "Manifest Error: The schema header is invalid. Please verify that the schema header is present and formatted correctly.";
+            ValidateSchemaHeaderFailure(manifestsFilePath, createManifestOption, expectedError);
+
+            // Schema header URL pattern mismatch
+            manifestsFilePath = TestCommon.GetTestDataFile(@"Manifests\TestWarningManifestV1_10-SchemaHeaderURLPatternMismatch.yaml");
+            expectedError = "Manifest Error: The schema header URL does not match the expected pattern.";
+            ValidateSchemaHeaderFailure(manifestsFilePath, createManifestOption, expectedError);
+
+            // Schema header manifest type mismatch
+            manifestsFilePath = TestCommon.GetTestDataFile(@"Manifests\TestWarningManifestV1_10-SchemaHeaderManifestTypeMismatch.yaml");
+            expectedError = "Manifest Error: The manifest type in the schema header does not match the ManifestType property value in the manifest.";
+            ValidateSchemaHeaderFailure(manifestsFilePath, createManifestOption, expectedError);
+
+            // Schema header version mismatch
+            manifestsFilePath = TestCommon.GetTestDataFile(@"Manifests\TestWarningManifestV1_10-SchemaHeaderVersionMismatch.yaml");
+            expectedError = "Manifest Error: The manifest version in the schema header does not match the ManifestVersion property value in the manifest.";
+            ValidateSchemaHeaderFailure(manifestsFilePath, createManifestOption, expectedError);
+        }
+
+        private static void ValidateSchemaHeaderFailure(string manifestsFilePath, WinGetUtilWrapper.CreateManifestOption createManifestOption, string expectedError)
+        {
+            // Create manifest
+            WinGetUtilWrapper.WinGetCreateManifest(
+                manifestsFilePath,
+                out bool succeeded,
+                out IntPtr manifestHandle,
+                out string createFailureMessage,
+                string.Empty,
+                createManifestOption);
+
+            Assert.False(succeeded);
+            Assert.AreEqual(IntPtr.Zero, manifestHandle);
+            Assert.IsNotNull(createFailureMessage);
+            Assert.IsTrue(createFailureMessage.Contains(expectedError));
+        }
+    }
 }

src/AppInstallerCLITests/AppInstallerCLITests.vcxproj

@@ -1033,6 +1033,21 @@
     <CopyFileToFolders Include="TestData\ContainsEscapeControlCode.yaml">
       <DeploymentContent>true</DeploymentContent>
     </CopyFileToFolders>
+    <CopyFileToFolders Include="TestData\ManifestV1_10-Bad-SchemaHeaderInvalid.yaml">
+      <DeploymentContent>true</DeploymentContent>
+    </CopyFileToFolders>
+    <CopyFileToFolders Include="TestData\ManifestV1_10-Bad-SchemaHeaderManifestTypeMismatch.yaml">
+      <DeploymentContent>true</DeploymentContent>
+    </CopyFileToFolders>
+    <CopyFileToFolders Include="TestData\ManifestV1_10-Bad-SchemaHeaderManifestVersionMismatch.yaml">
+      <DeploymentContent>true</DeploymentContent>
+    </CopyFileToFolders>
+    <CopyFileToFolders Include="TestData\ManifestV1_10-Bad-SchemaHeaderNotFound.yaml">
+      <DeploymentContent>true</DeploymentContent>
+    </CopyFileToFolders>
+    <CopyFileToFolders Include="TestData\ManifestV1_10-Bad-SchemaHeaderURLPatternMismatch.yaml">
+      <DeploymentContent>true</DeploymentContent>
+    </CopyFileToFolders>
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\AppInstallerCLICore\AppInstallerCLICore.vcxproj">
@@ -1076,4 +1091,4 @@
     <Error Condition="!Exists('$(SolutionDir)\packages\Microsoft.Windows.CppWinRT.2.0.230706.1\build\native\Microsoft.Windows.CppWinRT.props')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\packages\Microsoft.Windows.CppWinRT.2.0.230706.1\build\native\Microsoft.Windows.CppWinRT.props'))" />
     <Error Condition="!Exists('$(SolutionDir)\packages\Microsoft.Windows.CppWinRT.2.0.230706.1\build\native\Microsoft.Windows.CppWinRT.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\packages\Microsoft.Windows.CppWinRT.2.0.230706.1\build\native\Microsoft.Windows.CppWinRT.targets'))" />
   </Target>
-</Project>
+</Project>

src/AppInstallerCLITests/AppInstallerCLITests.vcxproj.filters

@@ -1044,5 +1044,20 @@
     <CopyFileToFolders Include="TestData\ContainsEscapeControlCode.yaml">
       <Filter>TestData</Filter>
     </CopyFileToFolders>
+    <CopyFileToFolders Include="TestData\ManifestV1_10-Bad-SchemaHeaderInvalid.yaml">
+      <Filter>TestData</Filter>
+    </CopyFileToFolders>
+    <CopyFileToFolders Include="TestData\ManifestV1_10-Bad-SchemaHeaderManifestTypeMismatch.yaml">
+      <Filter>TestData</Filter>
+    </CopyFileToFolders>
+    <CopyFileToFolders Include="TestData\ManifestV1_10-Bad-SchemaHeaderManifestVersionMismatch.yaml">
+      <Filter>TestData</Filter>
+    </CopyFileToFolders>
+    <CopyFileToFolders Include="TestData\ManifestV1_10-Bad-SchemaHeaderNotFound.yaml">
+      <Filter>TestData</Filter>
+    </CopyFileToFolders>
+    <CopyFileToFolders Include="TestData\ManifestV1_10-Bad-SchemaHeaderURLPatternMismatch.yaml">
+      <Filter>TestData</Filter>
+    </CopyFileToFolders>
   </ItemGroup>
 </Project>

src/AppInstallerCLITests/TestData/ManifestV1_10-Bad-SchemaHeaderInvalid.yaml

@@ -0,0 +1,16 @@
+# yaml-language-server= $schema=https://aka.ms/winget-manifest.singleton.1.10.0.schema.json
+PackageIdentifier: AppInstallerCliTest.SchemaHeaderInvalid
+PackageVersion: 1.0.0.0
+PackageLocale: en-US
+PackageName: AppInstaller Test Schema Header Invalid
+Publisher: Microsoft Corporation
+License: Test
+ShortDescription: This manifest has an invalid schema header
+
+Installers: 
+  - Architecture: x86
+    InstallerUrl: https://ThisIsNotUsed
+    InstallerType: msi
+    InstallerSha256: 65DB2F2AC2686C7F2FD69D4A4C6683B888DC55BFA20A0E32CA9F838B51689A3B
+ManifestType: singleton
+ManifestVersion: 1.10.0

src/AppInstallerCLITests/TestData/ManifestV1_10-Bad-SchemaHeaderManifestTypeMismatch.yaml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.installer.1.10.0.schema.json
+PackageIdentifier: AppInstallerCliTest.SchemaHeaderManifestTypeMismatch
+PackageVersion: 1.0.0.0
+PackageLocale: en-US
+PackageName: AppInstaller Test Schema Header ManifestType Mismatch
+Publisher: Microsoft Corporation
+License: Test
+ShortDescription: This manifest has a mismatched ManisfestType in the schema header
+
+Installers: 
+  - Architecture: x86
+    InstallerUrl: https://ThisIsNotUsed
+    InstallerType: msi
+    InstallerSha256: 65DB2F2AC2686C7F2FD69D4A4C6683B888DC55BFA20A0E32CA9F838B51689A3B
+ManifestType: singleton
+ManifestVersion: 1.10.0

src/AppInstallerCLITests/TestData/ManifestV1_10-Bad-SchemaHeaderManifestVersionMismatch.yaml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.singleton.1.9.0.schema.json
+PackageIdentifier: AppInstallerCliTest.SchemaHeaderVersionMismatch
+PackageVersion: 1.0.0.0
+PackageLocale: en-US
+PackageName: AppInstaller Test Schema Header ManifestVersion Mismatch
+Publisher: Microsoft Corporation
+License: Test
+ShortDescription: This manifest has a mismatched ManisfestVersion in the schema header
+
+Installers: 
+  - Architecture: x86
+    InstallerUrl: https://ThisIsNotUsed
+    InstallerType: msi
+    InstallerSha256: 65DB2F2AC2686C7F2FD69D4A4C6683B888DC55BFA20A0E32CA9F838B51689A3B
+ManifestType: singleton
+ManifestVersion: 1.10.0

src/AppInstallerCLITests/TestData/ManifestV1_10-Bad-SchemaHeaderNotFound.yaml

@@ -0,0 +1,15 @@
+PackageIdentifier: AppInstallerCliTest.SchemaHeaderNotFound
+PackageVersion: 1.0.0.0
+PackageLocale: en-US
+PackageName: AppInstaller Test Schema Header Not Found
+Publisher: Microsoft Corporation
+License: Test
+ShortDescription: This manifest has a missing schema header
+
+Installers: 
+  - Architecture: x86
+    InstallerUrl: https://ThisIsNotUsed
+    InstallerType: msi
+    InstallerSha256: 65DB2F2AC2686C7F2FD69D4A4C6683B888DC55BFA20A0E32CA9F838B51689A3B
+ManifestType: singleton
+ManifestVersion: 1.10.0

src/AppInstallerCLITests/TestData/ManifestV1_10-Bad-SchemaHeaderURLPatternMismatch.yaml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest-invalid.singleton.1.10.0.schema.json
+PackageIdentifier: AppInstallerCliTest.SchemaHeaderURLPatternMismatch
+PackageVersion: 1.0.0.0
+PackageLocale: en-US
+PackageName: AppInstaller Test Schema Header URL Pattern Mismatch
+Publisher: Microsoft Corporation
+License: Test
+ShortDescription: This manifest has a mismatched schema header URL pattern
+
+Installers: 
+  - Architecture: x86
+    InstallerUrl: https://ThisIsNotUsed
+    InstallerType: msi
+    InstallerSha256: 65DB2F2AC2686C7F2FD69D4A4C6683B888DC55BFA20A0E32CA9F838B51689A3B
+ManifestType: singleton
+ManifestVersion: 1.10.0

src/AppInstallerCLITests/TestData/ManifestV1_10-Singleton.yaml

@@ -1,3 +1,4 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.singleton.1.10.0.schema.json
 PackageIdentifier: microsoft.msixsdk
 PackageVersion: 1.7.32
 PackageLocale: en-US

src/AppInstallerCLITests/TestData/MultiFileManifestV1_10/ManifestV1_10-MultiFile-DefaultLocale.yaml

@@ -1,3 +1,4 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.defaultLocale.1.10.0.schema.json
 PackageIdentifier: microsoft.msixsdk
 PackageVersion: 1.7.32
 PackageLocale: en-US