version: "1.0.0" name: file-server description: ALWAYS LOAD THIS SKILL when working with FileServer, SMB, SMB2, SMB3, CIFS, file sharing, MS-SMB2, MS-FSCC, MS-FSA, MS-DFSC, MS-FSRVP, MS-RSVD, MS-SQOS, or any file server protocol test implementation. This skill assists with writing FileServer protocol test cases, implementing new test scenarios, discovering reusable libraries, adapters, and transport implementations (TCP, QUIC, NetBIOS, RDMA). CRITICAL--Before implementing any test, first classify the domain by analyzing concepts (File, Fs, FileSystemAttributes = FSA; NEGOTIATE, SESSION_SETUP, SMB commands = SMB2). Test scenarios from MS-SMB2 that involve File/Fs concepts belong to the FSA test suite. Provides test case patterns, storage locations, ProtoSDK usage, and test execution guidance. Protocols under FileServer/src include Auth, Common, DFSC, FSA, FSAModel, FSRVP, RSVD, ServerFailover, SMB2, SMB2Model, and SQOS. license: MIT metadata: author: Microsoft version: "1.2"

File Server Test Suite Skill

MANDATORY WORKFLOW (Follow In Order)

You MUST complete these steps IN ORDER. Do not skip ahead.

1. ☐ CLASSIFY DOMAIN FIRST - Analyze concepts in the scenario (see Test Scenario Domain Classification)
2. ☐ LOAD THE CORRECT REFERENCE - Based on domain classification
3. ☐ THEN search for existing tests - Only in the correct domain folder
4. ☐ Implement or modify - Using the domain-specific patterns

CRITICAL STOP: Do NOT use grep_search or file_search until Step 1 is complete.

MS-SMB2 Document ≠ SMB2 Domain: If the user mentions "MS-SMB2 section X.X.X", DO NOT assume SMB2 domain.

First extract the CONCEPTS from the scenario text. If you see File*, Fs*, FileSystemAttributes,

FileFsAttributeInformation, or any MS-FSCC structure names → it's FSA domain, regardless of the

MS-SMB2 section number.

Common Mistakes to Avoid

This skill helps you write FileServer protocol test cases by:

1. Classifying the domain - Determine FSA vs SMB2 vs other based on concepts
2. Discovering reusable components - Libraries, adapters, and transports you MUST reuse
3. Providing test patterns - How to structure and where to store test cases
4. Guiding test execution - Environment configuration and execution methods

Protocol-Specific References

For detailed guidance on specific protocols, load the appropriate reference based on domain classification (see Section 4):

Test Scenario Domain Classification (CRITICAL - READ FIRST)

Before implementing any test scenario, you MUST determine its domain based on the CONCEPTS involved, NOT the document section it came from.

CRITICAL STOP: Do NOT use grep_search or file_search until Step 1 is complete.

Finding tests via grep does not validate their correct location.

Step 1: Identify the Domain by Concepts

Analyze the test scenario for these keyword patterns:

Step 2: Understand the Protocol Document vs Test Domain Relationship

IMPORTANT: The MS-SMB2 document describes SMB2 server behavior, but many sections reference MS-FSCC (File System Control Codes) structures. When the test scenario involves:

• File system information classes (e.g., FileFsAttributeInformation, FileFsVolumeInformation) → FSA domain
• File information classes (e.g., FileBasicInformation, FileStandardInformation) → FSA domain
• FSCTL operations (e.g., FSCTL_GET_INTEGRITY_INFORMATION) → FSA domain
• SMB2 command behavior (e.g., NEGOTIATE, SESSION_SETUP, compound requests) → SMB2 domain

Example: MS-SMB2 section 3.3.5.20.2 describes clearing bits in FileFsAttributeInformation. Even though it's in the SMB2 spec, the concepts (FileSystemAttributes, FileFsAttributeInformation) are FSA domain because they test file system behavior exposed through SMB2.

Step 3: Check Test Location Based on Domain

Quick Domain Classification Examples

Pre-Implementation Checklist

Before writing or modifying any test, verify:

• [ ] I identified the domain based on concepts (File, Fs = FSA; NEGOTIATE, SESSION_SETUP = SMB2)
• [ ] I did NOT assume the domain from the MS-SMB2 document section number
• [ ] I searched for existing tests only in the classified domain folder
• [ ] The test location matches the domain classification table above

1. Reusable Components (MUST REUSE)

ProtoSDK Libraries

Location: ProtoSDK/ - Protocol implementations you MUST reuse.

Transport Types

Defined in: ProtoSDK/MS-SMB2/CustomTypes.cs

public enum Smb2TransportType
{
    Tcp,      // TCP transport (port 445)
    NetBios,  // NetBIOS transport (port 139)
    Rdma,     // RDMA transport (MS-SMBD)
    Quic,     // QUIC transport (port 443)
}

Test Adapters

Location: TestSuites/FileServer/src/Common/Adapter/

Test Base Classes

2. Test Case Patterns

Where to Store Test Cases

Minimal Test Template

using System;
using Microsoft.Protocols.TestSuites.FileSharing.Common.Adapter;
using Microsoft.Protocols.TestSuites.FileSharing.Common.TestSuite;
using Microsoft.Protocols.TestSuites.FileSharing.SMB2.Adapter;
using Microsoft.Protocols.TestTools;
using Microsoft.Protocols.TestTools.StackSdk.FileAccessService.Smb2;
using Microsoft.VisualStudio.TestTools.UnitTesting;
 
namespace Microsoft.Protocols.TestSuites.FileSharing.SMB2.TestSuite
{
    [TestClass]
    public class YourFeatureTests : SMB2TestBase
    {
        private Smb2FunctionalClient client;
 
        [ClassInitialize()]
        public static void ClassInitialize(TestContext testContext)
        {
            TestClassBase.Initialize(testContext);
        }
 
        [ClassCleanup()]
        public static void ClassCleanup()
        {
            TestClassBase.Cleanup();
        }
 
        protected override void TestInitialize()
        {
            base.TestInitialize();
        }
 
        protected override void TestCleanup()
        {
            if (client != null)
            {
                try { client.Disconnect(); }
                catch (Exception ex)
                {
                    BaseTestSite.Log.Add(LogEntryKind.Debug,
                        "Disconnect exception: {0}", ex.ToString());
                }
            }
            base.TestCleanup();
        }
 
        [TestMethod]
        [TestCategory(TestCategories.Bvt)]
        [TestCategory(TestCategories.Smb311)]
        [Description("Test description.")]
        public void BVT_Feature_Scenario()
        {
            // Use Smb2FunctionalClient for all SMB2 operations
            client = new Smb2FunctionalClient(TestConfig.Timeout, TestConfig, BaseTestSite);
            client.ConnectToServer(TestConfig.UnderlyingTransport,
                TestConfig.SutComputerName, TestConfig.SutIPAddress);
 
            // See protocol-specific reference for detailed patterns
        }
    }
}

Test Method Naming

Format: [Category]_[Feature]_[Scenario]

Examples: BVT_Negotiate_SigningEnabled, BVT_Encryption_EncryptedShare

Required Test Categories

using Microsoft.Protocols.TestSuites.FileSharing.Common.Adapter;
 
// Test type (pick one)
[TestCategory(TestCategories.Bvt)]    // Build verification
[TestCategory(TestCategories.Model)]  // Model-based
 
// SMB dialect (for SMB2 tests)
[TestCategory(TestCategories.Smb2002)]
[TestCategory(TestCategories.Smb311)]
 
// Feature category
[TestCategory(TestCategories.Negotiate)]
[TestCategory(TestCategories.Encryption)]
 
// Environment (if required)
[TestCategory(TestCategories.DomainRequired)]

3. Test Execution

Configuration Files

Key Settings in deployment.ptfconfig

<Property name="UnderlyingTransport" value="Tcp"/>  <!-- Tcp, NetBios, Quic -->
<Property name="SutComputerName" value="server.contoso.com"/>
<Property name="SutIPAddress" value="192.168.1.11"/>
<Property name="BasicFileShare" value="SMBBasic"/>
<Property name="MaxSmbVersionSupported" value="Smb311"/>

Running Tests

# From TestSuites/FileServer/src/Batch/
.\RunTestCasesByFilter.ps1 -Filter "TestCategory=BVT"
.\RunTestCasesByFilter.ps1 -Filter "TestCategory=BVT&TestCategory=Smb311"
 
# Dry run (list tests without running)
.\RunTestCasesByFilter.ps1 -Filter "TestCategory=BVT" -DryRun

Checking Prerequisites

using Microsoft.Protocols.TestTools.StackSdk.FileAccessService.Smb2;
 
// Check dialect
TestConfig.CheckDialect(DialectRevision.Smb311);
 
// Check feature (skips if unsupported)
BaseTestSite.Assume.IsTrue(TestConfig.IsEncryptionSupported,
    "Test requires encryption support");

4. Decision Tree

Which reference should I load?

First, classify the domain using Step 1 above, then:

1. FSA domain (File*, Fs*, file system concepts)? → Load references/fsa.md
2. SMB2 domain (SMB commands, protocol features)? → Load references/smb2.md
3. DFS referral tests? → Load references/dfsc.md
4. VSS/shadow copy tests? → Load references/fsrvp.md
5. Virtual disk tests? → Load references/rsvd.md
6. Storage QoS tests? → Load references/sqos.md
7. Authentication tests? → Load references/auth.md
8. Failover tests? → Load references/serverfailover.md
9. Understanding shared infrastructure? → Load references/common.md