feat: Add FileVersionInfo support

src/TestableIO.System.IO.Abstractions.TestingHelpers/MockFileData.cs

@@ -119,6 +119,11 @@ public MockFileData(MockFileData template)
         /// </summary>
         public byte[] Contents { get; set; }
 
+        /// <summary>
+        /// Gets or sets the file version info of the <see cref="MockFileData"/>
+        /// </summary>
+        public IFileVersionInfo FileVersionInfo { get; set; }
+
         /// <summary>
         /// Gets or sets the string contents of the <see cref="MockFileData"/>.
         /// </summary>

src/TestableIO.System.IO.Abstractions.TestingHelpers/MockFileInfo.cs

@@ -259,7 +259,7 @@ public override void Encrypt()
             var mockFileData = GetMockFileDataForWrite();
             mockFileData.Attributes |= FileAttributes.Encrypted;
         }
-        
+
         /// <inheritdoc />
         public override void MoveTo(string destFileName)
         {
@@ -323,7 +323,7 @@ public override IFileInfo Replace(string destinationFileName, string destination
             mockFile.Replace(path, destinationFileName, destinationBackupFileName, ignoreMetadataErrors);
             return mockFileSystem.FileInfo.New(destinationFileName);
         }
-        
+
         /// <inheritdoc />
         public override IDirectoryInfo Directory
         {

src/TestableIO.System.IO.Abstractions.TestingHelpers/MockFileSystem.cs

@@ -65,6 +65,7 @@ public MockFileSystem(IDictionary<string, MockFileData> files, MockFileSystemOpt
             File = new MockFile(this);
             Directory = new MockDirectory(this, currentDirectory);
             FileInfo = new MockFileInfoFactory(this);
+            FileVersionInfo = new MockFileVersionInfoFactory(this);
             FileStream = new MockFileStreamFactory(this);
             DirectoryInfo = new MockDirectoryInfoFactory(this);
             DriveInfo = new MockDriveInfoFactory(this);
@@ -98,6 +99,8 @@ public MockFileSystem(IDictionary<string, MockFileData> files, MockFileSystemOpt
         /// <inheritdoc />
         public override IFileInfoFactory FileInfo { get; }
         /// <inheritdoc />
+        public override IFileVersionInfoFactory FileVersionInfo { get; }
+        /// <inheritdoc />
         public override IFileStreamFactory FileStream { get; }
         /// <inheritdoc />
         public override IPath Path { get; }
@@ -252,6 +255,8 @@ public void AddFile(string path, MockFileData mockFile)
                 AddDirectory(directoryPath);
             }
 
+            mockFile.FileVersionInfo ??= new MockFileVersionInfo(fixedPath);
+
             SetEntry(fixedPath, mockFile);
         }
 
@@ -568,7 +573,7 @@ private bool FileIsReadOnly(string path)
         }
 
 #if FEATURE_SERIALIZABLE
-    [Serializable]
+        [Serializable]
 #endif
         private class FileSystemEntry
         {

src/TestableIO.System.IO.Abstractions.TestingHelpers/MockFileVersionInfo.cs

@@ -0,0 +1,174 @@
+using System.Diagnostics;
+using System.Text;
+
+namespace System.IO.Abstractions.TestingHelpers
+{
+    /// <inheritdoc />
+#if FEATURE_SERIALIZABLE
+    [Serializable]
+#endif
+    public class MockFileVersionInfo : FileVersionInfoBase
+    {
+        /// <inheritdoc />
+        public MockFileVersionInfo(
+            string fileName,
+            string fileVersion = null,
+            string productVersion = null,
+            string fileDescription = null,
+            string productName = null,
+            string companyName = null,
+            string comments = null,
+            string internalName = null,
+            bool isDebug = false,
+            bool isPatched = false,
+            bool isPrivateBuild = false,
+            bool isPreRelease = false,
+            bool isSpecialBuild = false,
+            string language = null,
+            string legalCopyright = null,
+            string legalTrademarks = null,
+            string originalFilename = null,
+            string privateBuild = null,
+            string specialBuild = null)
+        {
+            FileName = fileName;
+            FileVersion = fileVersion;
+            ProductVersion = productVersion;
+            FileDescription = fileDescription;
+            ProductName = productName;
+            CompanyName = companyName;
+            Comments = comments;
+            InternalName = internalName;
+            IsDebug = isDebug;
+            IsPatched = isPatched;
+            IsPrivateBuild = isPrivateBuild;
+            IsPreRelease = isPreRelease;
+            IsSpecialBuild = isSpecialBuild;
+            Language = language;
+            LegalCopyright = legalCopyright;
+            LegalTrademarks = legalTrademarks;
+            OriginalFilename = originalFilename;
+            PrivateBuild = privateBuild;
+            SpecialBuild = specialBuild;
+
+            if (Version.TryParse(fileVersion, out Version version))
+            {
+                FileMajorPart = version.Major;
+                FileMinorPart = version.Minor;
+                FileBuildPart = version.Build;
+                FilePrivatePart = version.Revision;
+            }
+
+            var parsedProductVersion = ProductVersionParser.Parse(productVersion);
+
+            ProductMajorPart = parsedProductVersion.Major;
+            ProductMinorPart = parsedProductVersion.Minor;
+            ProductBuildPart = parsedProductVersion.Build;
+            ProductPrivatePart = parsedProductVersion.PrivatePart;
+        }
+
+        /// <inheritdoc/>
+        public override string FileName { get; }
+
+        /// <inheritdoc/>
+        public override string FileVersion { get; }
+
+        /// <inheritdoc/>
+        public override string ProductVersion { get; }
+
+        /// <inheritdoc/>
+        public override string FileDescription { get; }
+
+        /// <inheritdoc/>
+        public override string ProductName { get; }
+
+        /// <inheritdoc/>
+        public override string CompanyName { get; }
+
+        /// <inheritdoc/>
+        public override string Comments { get; }
+
+        /// <inheritdoc/>
+        public override string InternalName { get; }
+
+        /// <inheritdoc/>
+        public override bool IsDebug { get; }
+
+        /// <inheritdoc/>
+        public override bool IsPatched { get; }
+
+        /// <inheritdoc/>
+        public override bool IsPrivateBuild { get; }
+
+        /// <inheritdoc/>
+        public override bool IsPreRelease { get; }
+
+        /// <inheritdoc/>
+        public override bool IsSpecialBuild { get; }
+
+        /// <inheritdoc/>
+        public override string Language { get; }
+
+        /// <inheritdoc/>
+        public override string LegalCopyright { get; }
+
+        /// <inheritdoc/>
+        public override string LegalTrademarks { get; }
+
+        /// <inheritdoc/>
+        public override string OriginalFilename { get; }
+
+        /// <inheritdoc/>
+        public override string PrivateBuild { get; }
+
+        /// <inheritdoc/>
+        public override string SpecialBuild { get; }
+
+        /// <inheritdoc/>
+        public override int FileMajorPart { get; }
+
+        /// <inheritdoc/>
+        public override int FileMinorPart { get; }
+
+        /// <inheritdoc/>
+        public override int FileBuildPart { get; }
+
+        /// <inheritdoc/>
+        public override int FilePrivatePart { get; }
+
+        /// <inheritdoc/>
+        public override int ProductMajorPart { get; }
+
+        /// <inheritdoc/>
+        public override int ProductMinorPart { get; }
+
+        /// <inheritdoc/>
+        public override int ProductBuildPart { get; }
+
+        /// <inheritdoc/>
+        public override int ProductPrivatePart { get; }
+
+        /// <inheritdoc cref="FileVersionInfo.ToString" />
+        public override string ToString()
+        {
+            // An initial capacity of 512 was chosen because it is large enough to cover
+            // the size of the static strings with enough capacity left over to cover
+            // average length property values.
+            var sb = new StringBuilder(512);
+            sb.Append("File:             ").AppendLine(FileName);
+            sb.Append("InternalName:     ").AppendLine(InternalName);
+            sb.Append("OriginalFilename: ").AppendLine(OriginalFilename);
+            sb.Append("FileVersion:      ").AppendLine(FileVersion);
+            sb.Append("FileDescription:  ").AppendLine(FileDescription);
+            sb.Append("Product:          ").AppendLine(ProductName);
+            sb.Append("ProductVersion:   ").AppendLine(ProductVersion);
+            sb.Append("Debug:            ").AppendLine(IsDebug.ToString());
+            sb.Append("Patched:          ").AppendLine(IsPatched.ToString());
+            sb.Append("PreRelease:       ").AppendLine(IsPreRelease.ToString());
+            sb.Append("PrivateBuild:     ").AppendLine(IsPrivateBuild.ToString());
+            sb.Append("SpecialBuild:     ").AppendLine(IsSpecialBuild.ToString());
+            sb.Append("Language:         ").AppendLine(Language);
+            return sb.ToString();
+        }
+    }
+}

src/TestableIO.System.IO.Abstractions.TestingHelpers/MockFileVersionInfoFactory.cs

@@ -0,0 +1,33 @@
+namespace System.IO.Abstractions.TestingHelpers
+{
+    /// <inheritdoc />
+#if FEATURE_SERIALIZABLE
+    [Serializable]
+#endif
+    public class MockFileVersionInfoFactory : IFileVersionInfoFactory
+    {
+        private readonly IMockFileDataAccessor mockFileSystem;
+
+        /// <inheritdoc />
+        public MockFileVersionInfoFactory(IMockFileDataAccessor mockFileSystem)
+        {
+            this.mockFileSystem = mockFileSystem ?? throw new ArgumentNullException(nameof(mockFileSystem));
+        }
+
+        /// <inheritdoc />
+        public IFileSystem FileSystem => mockFileSystem;
+
+        /// <inheritdoc />
+        public IFileVersionInfo GetVersionInfo(string fileName)
+        {
+            MockFileData mockFileData = mockFileSystem.GetFile(fileName);
+
+            if (mockFileData != null)
+            {
+                return mockFileData.FileVersionInfo;
+            }
+
+            throw CommonExceptions.FileNotFound(fileName);
+        }
+    }
+}

src/TestableIO.System.IO.Abstractions.TestingHelpers/ProductVersionParser.cs

@@ -0,0 +1,99 @@
+using System.Reflection;
+using System.Text.RegularExpressions;
+
+namespace System.IO.Abstractions.TestingHelpers
+{
+    /// <summary>
+    /// Provides functionality to parse a product version string into its major, minor, build, and private parts.
+    /// </summary>
+    internal static class ProductVersionParser
+    {
+        /// <summary>
+        /// Parses a product version string and extracts the numeric values for the major, minor, build, and private parts,
+        /// mimicking the behavior of the <see cref="AssemblyInformationalVersionAttribute"/> attribute.
+        /// </summary>
+        /// <param name="productVersion">The product version string to parse.</param>
+        /// <returns>
+        /// A <see cref="ProductVersion"/> object containing the parsed major, minor, build, and private parts. 
+        /// If the input is invalid, returns a <see cref="ProductVersion"/> with all parts set to 0.
+        /// </returns>
+        /// <remarks>
+        /// The method splits the input string into segments separated by dots ('.') and attempts to extract
+        /// the leading numeric value from each segment. A maximum of 4 segments are processed; if more than
+        /// 4 segments are present, all segments are ignored. Additionally, if a segment does not contain 
+        /// a valid numeric part at its start or it contains more than just a number, the rest of the segments are ignored.
+        /// </remarks>
+        public static ProductVersion Parse(string productVersion)
+        {
+            if (string.IsNullOrWhiteSpace(productVersion))
+            {
+                return new();
+            }
+
+            var segments = productVersion.Split('.');
+            if (segments.Length > 4)
+            {
+                // if more than 4 segments are present, all segments are ignored
+                return new();
+            }
+
+            var regex = new Regex(@"^\d+");
+
+            int[] parts = new int[4];
+
+            for (int i = 0; i < segments.Length; i++)
+            {
+                var match = regex.Match(segments[i]);
+                if (match.Success && int.TryParse(match.Value, out int number))
+                {
+                    parts[i] = number;
+
+                    if (match.Value != segments[i])
+                    {
+                        // when a segment contains more than a number, the rest of the segments are ignored
+                        break;
+                    }
+                }
+                else
+                {
+                    // when a segment is not valid, the rest of the segments are ignored
+                    break;
+                }
+            }
+
+            return new()
+            {
+                Major = parts[0],
+                Minor = parts[1],
+                Build = parts[2],
+                PrivatePart = parts[3]
+            };
+        }
+
+        /// <summary>
+        /// Represents a product version with numeric parts for major, minor, build, and private versions.
+        /// </summary>
+        public class ProductVersion
+        {
+            /// <summary>
+            /// Gets the major part of the version number
+            /// </summary>
+            public int Major { get; init; }
+
+            /// <summary>
+            /// Gets the minor part of the version number
+            /// </summary>
+            public int Minor { get; init; }
+
+            /// <summary>
+            /// Gets the build part of the version number
+            /// </summary>
+            public int Build { get; init; }
+
+            /// <summary>
+            /// Gets the private part of the version number
+            /// </summary>
+            public int PrivatePart { get; init; }
+        }
+    }
+}

src/TestableIO.System.IO.Abstractions.Wrappers/FileInfoBase.cs

@@ -36,7 +36,7 @@ internal FileInfoBase() { }
 
         /// <inheritdoc cref="IFileInfo.Encrypt"/>
         public abstract void Encrypt();
-        
+
         /// <inheritdoc cref="IFileInfo.MoveTo(string)"/>
         public abstract void MoveTo(string destFileName);
 
@@ -73,7 +73,7 @@ internal FileInfoBase() { }
 
         /// <inheritdoc cref="IFileInfo.Replace(string,string,bool)"/>
         public abstract IFileInfo Replace(string destinationFileName, string destinationBackupFileName, bool ignoreMetadataErrors);
-        
+
         /// <inheritdoc cref="IFileInfo.Directory"/>
         public abstract IDirectoryInfo Directory { get; }