[265] Add file upload to allow mocking of file operations (#266)

* [265] Add file upload to allow mocking of file operations

* [265] Fix failing test

* Update code + add tests

* LocalFileSystemHandlerTests

* 1.0.13

* Fixed the file post to create the mapping folder if none exists to begin with, otherwise the file upload fails with 404 (can't find the folder to upload to).

* fix tests

* add more tests for LocalFileSystemHandler

* Added the head method for files to check if a file exists without returning it as a body.

* Add a test and fix the response message (head requires no body).

* Fix newline

* Fix newline.

* Fix the number of mapping tests

* Update tests and update client-interface-api

* Cleanup "MappingConverter.cs"

test/WireMock.Net.Tests/FLuentMockServerTests.AdminFiles.cs

@@ -0,0 +1,215 @@
+using Moq;
+using NFluent;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Net.Http;
+using System.Net.Http.Headers;
+using System.Text;
+using System.Threading.Tasks;
+using WireMock.Handlers;
+using WireMock.Server;
+using WireMock.Settings;
+using Xunit;
+
+namespace WireMock.Net.Tests
+{
+    public class FluentMockServerAdminFilesTests
+    {
+        private readonly HttpClient _client = new HttpClient();
+
+        [Fact]
+        public async Task FluentMockServer_Admin_Files_Post_Ascii()
+        {
+            // Arrange
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.GetMappingFolder()).Returns("__admin/mappings");
+            filesystemHandlerMock.Setup(fs => fs.FolderExists(It.IsAny<string>())).Returns(true);
+            filesystemHandlerMock.Setup(fs => fs.WriteFile(It.IsAny<string>(), It.IsAny<byte[]>()));
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            var multipartFormDataContent = new MultipartFormDataContent();
+            multipartFormDataContent.Headers.ContentType = MediaTypeHeaderValue.Parse("multipart/form-data");
+            multipartFormDataContent.Add(new StreamContent(new MemoryStream(Encoding.ASCII.GetBytes("Here's a string."))));
+
+            // Act
+            var httpResponseMessage = await _client.PostAsync("http://localhost:" + server.Ports[0] + "/__admin/files/filename.txt", multipartFormDataContent);
+
+            // Assert
+            Check.That(httpResponseMessage.StatusCode).Equals(HttpStatusCode.OK);
+            Check.That(server.LogEntries.Count().Equals(1));
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.GetMappingFolder(), Times.Once);
+            filesystemHandlerMock.Verify(fs => fs.FolderExists(It.IsAny<string>()), Times.Once);
+            filesystemHandlerMock.Verify(fs => fs.WriteFile(It.Is<string>(p => p == "filename.txt"), It.IsAny<byte[]>()), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+        }
+
+        [Fact]
+        public async Task FluentMockServer_Admin_Files_Post_MappingFolderDoesNotExistsButWillBeCreated()
+        {
+            // Arrange
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.GetMappingFolder()).Returns("x");
+            filesystemHandlerMock.Setup(fs => fs.CreateFolder(It.IsAny<string>()));
+            filesystemHandlerMock.Setup(fs => fs.FolderExists(It.IsAny<string>())).Returns(false);
+            filesystemHandlerMock.Setup(fs => fs.WriteFile(It.IsAny<string>(), It.IsAny<byte[]>()));
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            var multipartFormDataContent = new MultipartFormDataContent();
+            multipartFormDataContent.Headers.ContentType = MediaTypeHeaderValue.Parse("multipart/form-data");
+            multipartFormDataContent.Add(new StreamContent(new MemoryStream(Encoding.ASCII.GetBytes("Here's a string."))));
+
+            // Act
+            var httpResponseMessage = await _client.PostAsync("http://localhost:" + server.Ports[0] + "/__admin/files/filename.txt", multipartFormDataContent);
+
+            // Assert
+            Check.That(httpResponseMessage.StatusCode).Equals(HttpStatusCode.OK);
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.GetMappingFolder(), Times.Once);
+            filesystemHandlerMock.Verify(fs => fs.FolderExists(It.IsAny<string>()), Times.Once);
+            filesystemHandlerMock.Verify(fs => fs.CreateFolder(It.Is<string>(p => p == "x")), Times.Once);
+            filesystemHandlerMock.Verify(fs => fs.WriteFile(It.Is<string>(p => p == "filename.txt"), It.IsAny<byte[]>()), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+        }
+
+        [Fact]
+        public async Task FluentMockServer_Admin_Files_GetAscii()
+        {
+            // Arrange
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.FileExists(It.IsAny<string>())).Returns(true);
+            filesystemHandlerMock.Setup(fs => fs.ReadFile(It.IsAny<string>())).Returns(Encoding.ASCII.GetBytes("Here's a string."));
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            var multipartFormDataContent = new MultipartFormDataContent();
+            multipartFormDataContent.Headers.ContentType = MediaTypeHeaderValue.Parse("multipart/form-data");
+            multipartFormDataContent.Add(new StreamContent(new MemoryStream()));
+
+            // Act
+            var httpResponseMessageGet = await _client.GetAsync("http://localhost:" + server.Ports[0] + "/__admin/files/filename.txt");
+
+            // Assert
+            Check.That(httpResponseMessageGet.StatusCode).Equals(HttpStatusCode.OK);
+
+            Check.That(httpResponseMessageGet.Content.ReadAsStringAsync().Result).Equals("Here's a string.");
+
+            Check.That(server.LogEntries.Count().Equals(2));
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.ReadFile(It.Is<string>(p => p == "filename.txt")), Times.Once);
+            filesystemHandlerMock.Verify(fs => fs.FileExists(It.Is<string>(p => p == "filename.txt")), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+        }
+
+        [Fact]
+        public async Task FluentMockServer_Admin_Files_GetUTF16()
+        {
+            // Arrange
+            byte[] symbol = Encoding.UTF32.GetBytes(char.ConvertFromUtf32(0x1D161));
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.FileExists(It.IsAny<string>())).Returns(true);
+            filesystemHandlerMock.Setup(fs => fs.ReadFile(It.IsAny<string>())).Returns(symbol);
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            var multipartFormDataContent = new MultipartFormDataContent();
+            multipartFormDataContent.Headers.ContentType = MediaTypeHeaderValue.Parse("multipart/form-data");
+            multipartFormDataContent.Add(new StreamContent(new MemoryStream()));
+
+            // Act
+            var httpResponseMessageGet = await _client.GetAsync("http://localhost:" + server.Ports[0] + "/__admin/files/filename.bin");
+
+            // Assert
+            Check.That(httpResponseMessageGet.StatusCode).Equals(HttpStatusCode.OK);
+            Check.That(httpResponseMessageGet.Content.ReadAsByteArrayAsync().Result).Equals(symbol);
+            Check.That(server.LogEntries.Count().Equals(2));
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.ReadFile(It.Is<string>(p => p == "filename.bin")), Times.Once);
+            filesystemHandlerMock.Verify(fs => fs.FileExists(It.Is<string>(p => p == "filename.bin")), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+        }
+
+        [Fact]
+        public async Task FluentMockServer_Admin_Files_Head()
+        {
+            // Arrange
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.FileExists(It.IsAny<string>())).Returns(true);
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            // Act
+            var requestUri = "http://localhost:" + server.Ports[0] + "/__admin/files/filename.txt";
+            var httpRequestMessage = new HttpRequestMessage(HttpMethod.Head, requestUri);
+            var httpResponseMessage = await _client.SendAsync(httpRequestMessage);
+
+            // Assert
+            Check.That(httpResponseMessage.StatusCode).Equals(HttpStatusCode.NoContent);
+            Check.That(server.LogEntries.Count().Equals(1));
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.FileExists(It.IsAny<string>()), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+        }
+
+        [Fact]
+        public async Task FluentMockServer_Admin_Files_Head_FileDoesNotExistsReturns404()
+        {
+            // Arrange
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.FileExists(It.IsAny<string>())).Returns(false);
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            // Act
+            var requestUri = "http://localhost:" + server.Ports[0] + "/__admin/files/filename.txt";
+            var httpRequestMessage = new HttpRequestMessage(HttpMethod.Head, requestUri);
+            var httpResponseMessage = await _client.SendAsync(httpRequestMessage);
+
+            // Assert
+            Check.That(httpResponseMessage.StatusCode).Equals(HttpStatusCode.NotFound);
+            Check.That(server.LogEntries.Count().Equals(1));
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.FileExists(It.IsAny<string>()), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+        }
+    }
+}

test/WireMock.Net.Tests/FluentMockServerAdminRestClientTests.cs

@@ -1,12 +1,15 @@
-using NFluent;
+using Moq;
+using NFluent;
 using RestEase;
 using System.Linq;
 using System.Net.Http;
 using System.Net.Http.Headers;
+using System.Text;
 using System.Threading.Tasks;
 using WireMock.Admin.Mappings;
 using WireMock.Admin.Settings;
 using WireMock.Client;
+using WireMock.Handlers;
 using WireMock.Logging;
 using WireMock.Server;
 using WireMock.Settings;
@@ -232,6 +235,237 @@ namespace WireMock.Net.Tests
             Check.That(requestLogged.Request.Body).IsNotNull();
             Check.That(requestLogged.Request.Body).Contains("T000001");
         }
-    }
 
+        [Fact]
+        public async Task IFluentMockServerAdmin_PostFileAsync_Ascii()
+        {
+            // Arrange
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.GetMappingFolder()).Returns("__admin/mappings");
+            filesystemHandlerMock.Setup(fs => fs.FolderExists(It.IsAny<string>())).Returns(true);
+            filesystemHandlerMock.Setup(fs => fs.WriteFile(It.IsAny<string>(), It.IsAny<byte[]>()));
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            var api = RestClient.For<IFluentMockServerAdmin>(server.Urls[0]);
+
+            // Act
+            var request = await api.PostFileAsync("filename.txt", "abc");
+
+            // Assert
+            Check.That(request.Guid).IsNull();
+            Check.That(request.Status).Contains("File");
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.GetMappingFolder(), Times.Once);
+            filesystemHandlerMock.Verify(fs => fs.FolderExists(It.IsAny<string>()), Times.Once);
+            filesystemHandlerMock.Verify(fs => fs.WriteFile(It.Is<string>(p => p == "filename.txt"), It.IsAny<byte[]>()), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+
+            server.Stop();
+        }
+
+        [Fact]
+        public async Task IFluentMockServerAdmin_PutFileAsync_Ascii()
+        {
+            // Arrange
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.FileExists(It.IsAny<string>())).Returns(true);
+            filesystemHandlerMock.Setup(fs => fs.WriteFile(It.IsAny<string>(), It.IsAny<byte[]>()));
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            var api = RestClient.For<IFluentMockServerAdmin>(server.Urls[0]);
+
+            // Act
+            var request = await api.PutFileAsync("filename.txt", "abc-abc");
+
+            // Assert
+            Check.That(request.Guid).IsNull();
+            Check.That(request.Status).Contains("File");
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.WriteFile(It.Is<string>(p => p == "filename.txt"), It.IsAny<byte[]>()), Times.Once);
+            filesystemHandlerMock.Verify(fs => fs.FileExists(It.Is<string>(p => p == "filename.txt")), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+
+            server.Stop();
+        }
+
+        [Fact]
+        public void IFluentMockServerAdmin_PutFileAsync_NotFound()
+        {
+            // Arrange
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.FileExists(It.IsAny<string>())).Returns(false);
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            var api = RestClient.For<IFluentMockServerAdmin>(server.Urls[0]);
+
+            // Act and Assert
+            Check.ThatAsyncCode(() => api.PutFileAsync("filename.txt", "xxx")).Throws<ApiException>();
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.FileExists(It.Is<string>(p => p == "filename.txt")), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+
+            server.Stop();
+        }
+
+        [Fact]
+        public void IFluentMockServerAdmin_GetFileAsync_NotFound()
+        {
+            // Arrange
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.FileExists(It.IsAny<string>())).Returns(false);
+            filesystemHandlerMock.Setup(fs => fs.ReadFile(It.IsAny<string>())).Returns(Encoding.ASCII.GetBytes("Here's a string."));
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            var api = RestClient.For<IFluentMockServerAdmin>(server.Urls[0]);
+
+            // Act and Assert
+            Check.ThatAsyncCode(() => api.GetFileAsync("filename.txt")).Throws<ApiException>();
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.FileExists(It.Is<string>(p => p == "filename.txt")), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+
+            server.Stop();
+        }
+
+        [Fact]
+        public async Task IFluentMockServerAdmin_GetFileAsync_Found()
+        {
+            // Arrange
+            string data = "Here's a string.";
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.FileExists(It.IsAny<string>())).Returns(true);
+            filesystemHandlerMock.Setup(fs => fs.ReadFile(It.IsAny<string>())).Returns(Encoding.ASCII.GetBytes(data));
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            var api = RestClient.For<IFluentMockServerAdmin>(server.Urls[0]);
+
+            // Act
+            string file = await api.GetFileAsync("filename.txt");
+
+            // Assert
+            Check.That(file).Equals(data);
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.FileExists(It.Is<string>(p => p == "filename.txt")), Times.Once);
+            filesystemHandlerMock.Verify(fs => fs.ReadFile(It.Is<string>(p => p == "filename.txt")), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+
+            server.Stop();
+        }
+
+        [Fact]
+        public async Task IFluentMockServerAdmin_DeleteFileAsync_Ok()
+        {
+            // Arrange
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.FileExists(It.IsAny<string>())).Returns(true);
+            filesystemHandlerMock.Setup(fs => fs.DeleteFile(It.IsAny<string>()));
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            var api = RestClient.For<IFluentMockServerAdmin>(server.Urls[0]);
+
+            // Act
+            await api.DeleteFileAsync("filename.txt");
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.FileExists(It.Is<string>(p => p == "filename.txt")), Times.Once);
+            filesystemHandlerMock.Verify(fs => fs.DeleteFile(It.Is<string>(p => p == "filename.txt")), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+
+            server.Stop();
+        }
+
+        [Fact]
+        public void IFluentMockServerAdmin_DeleteFileAsync_NotFound()
+        {
+            // Arrange
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.FileExists(It.IsAny<string>())).Returns(false);
+            filesystemHandlerMock.Setup(fs => fs.DeleteFile(It.IsAny<string>()));
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            var api = RestClient.For<IFluentMockServerAdmin>(server.Urls[0]);
+
+            // Act and Assert
+            Check.ThatAsyncCode(() => api.DeleteFileAsync("filename.txt")).Throws<ApiException>();
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.FileExists(It.Is<string>(p => p == "filename.txt")), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+
+            server.Stop();
+        }
+
+        [Fact]
+        public void IFluentMockServerAdmin_FileExistsAsync_NotFound()
+        {
+            // Arrange
+            var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
+            filesystemHandlerMock.Setup(fs => fs.FileExists(It.IsAny<string>())).Returns(false);
+
+            var server = FluentMockServer.Start(new FluentMockServerSettings
+            {
+                UseSSL = false,
+                StartAdminInterface = true,
+                FileSystemHandler = filesystemHandlerMock.Object
+            });
+
+            var api = RestClient.For<IFluentMockServerAdmin>(server.Urls[0]);
+
+            // Act and Assert
+            Check.ThatAsyncCode(() => api.FileExistsAsync("filename.txt")).Throws<ApiException>();
+
+            // Verify
+            filesystemHandlerMock.Verify(fs => fs.FileExists(It.Is<string>(p => p == "filename.txt")), Times.Once);
+            filesystemHandlerMock.VerifyNoOtherCalls();
+
+            server.Stop();
+        }
+    }
 }

test/WireMock.Net.Tests/FluentMockServerTests.Admin.cs

@@ -1,11 +1,11 @@
-using System;
+using Moq;
+using Newtonsoft.Json;
+using NFluent;
+using System;
 using System.IO;
 using System.Linq;
 using System.Net.Http;
 using System.Threading.Tasks;
-using Moq;
-using Newtonsoft.Json;
-using NFluent;
 using WireMock.Handlers;
 using WireMock.Logging;
 using WireMock.RequestBuilders;

test/WireMock.Net.Tests/FluentMockServerTests.Settings.cs

@@ -62,7 +62,7 @@ namespace WireMock.Net.Tests
 
             // Assert
             var mappings = server.Mappings;
-            Check.That(mappings.Count()).IsEqualTo(19);
+            Check.That(mappings.Count()).IsEqualTo(24);
             Check.That(mappings.All(m => m.Priority == int.MinValue)).IsTrue();
         }
 
@@ -81,8 +81,8 @@ namespace WireMock.Net.Tests
 
             // Assert
             var mappings = server.Mappings;
-            Check.That(mappings.Count()).IsEqualTo(20);
-            Check.That(mappings.Count(m => m.Priority == int.MinValue)).IsEqualTo(19);
+            Check.That(mappings.Count()).IsEqualTo(25);
+            Check.That(mappings.Count(m => m.Priority == int.MinValue)).IsEqualTo(24);
             Check.That(mappings.Count(m => m.Priority == 1000)).IsEqualTo(1);
         }
 

test/WireMock.Net.Tests/Handlers/LocalFileSystemHandlerTests.cs

@@ -1,6 +1,6 @@
-using System;
+using NFluent;
+using System;
 using System.IO;
-using NFluent;
 using WireMock.Handlers;
 using Xunit;
 
@@ -21,24 +21,62 @@ namespace WireMock.Net.Tests.Handlers
         }
 
         [Fact]
-        public void LocalFileSystemHandler_CreateFolder_Throws()
+        public void LocalFileSystemHandler_CreateFolder_ThrowsArgumentNullException()
         {
             // Act
             Check.ThatCode(() => _sut.CreateFolder(null)).Throws<ArgumentNullException>();
         }
 
         [Fact]
-        public void LocalFileSystemHandler_WriteMappingFile_Throws()
+        public void LocalFileSystemHandler_WriteMappingFile_ThrowsArgumentNullException()
         {
             // Act
             Check.ThatCode(() => _sut.WriteMappingFile(null, null)).Throws<ArgumentNullException>();
         }
 
         [Fact]
-        public void LocalFileSystemHandler_ReadResponseBodyAsFile_Throws()
+        public void LocalFileSystemHandler_ReadResponseBodyAsFile_ThrowsArgumentNullException()
         {
             // Act
             Check.ThatCode(() => _sut.ReadResponseBodyAsFile(null)).Throws<ArgumentNullException>();
         }
+
+        [Fact]
+        public void LocalFileSystemHandler_FileExists_ReturnsFalse()
+        {
+            // Act
+            var result = _sut.FileExists("x.x");
+
+            // Assert
+            Check.That(result).IsFalse();
+        }
+
+        [Fact]
+        public void LocalFileSystemHandler_FileExists_ThrowsArgumentNullException()
+        {
+            // Act
+            Check.ThatCode(() => _sut.FileExists(null)).Throws<ArgumentNullException>();
+        }
+
+        [Fact]
+        public void LocalFileSystemHandler_ReadFile_ThrowsArgumentNullException()
+        {
+            // Act
+            Check.ThatCode(() => _sut.ReadFile(null)).Throws<ArgumentNullException>();
+        }
+
+        [Fact]
+        public void LocalFileSystemHandler_WriteFile_ThrowsArgumentNullException()
+        {
+            // Act
+            Check.ThatCode(() => _sut.WriteFile(null, null)).Throws<ArgumentNullException>();
+        }
+
+        [Fact]
+        public void LocalFileSystemHandler_DeleteFile_ThrowsArgumentNullException()
+        {
+            // Act
+            Check.ThatCode(() => _sut.DeleteFile(null)).Throws<ArgumentNullException>();
+        }
     }
 }

test/WireMock.Net.Tests/ResponseBuilders/ResponseWithBodyTests.cs

@@ -1,4 +1,5 @@
-using System.Text;
+using System;
+using System.Text;
 using System.Threading.Tasks;
 using NFluent;
 using WireMock.Models;
@@ -231,5 +232,53 @@ namespace WireMock.Net.Tests.ResponseBuilders
             Check.That(response2Message.BodyData.BodyAsString).IsNull();
             Check.That(response2Message.StatusCode).IsEqualTo(200);
         }
+
+        [Fact]
+        public async Task Response_ProvideResponse_WithBodyAsFile()
+        {
+            var fileContents = "testFileContents" + Guid.NewGuid();
+            var bodyDataAsFile = new BodyData {BodyAsFile = fileContents};
+
+            var request1 = new RequestMessage(new UrlDetails("http://localhost/__admin/files/filename.txt"), "PUT", ClientIp, bodyDataAsFile);
+
+            var response = Response.Create().WithStatusCode(200).WithBody(fileContents);
+
+            var provideResponseAsync = await response.ProvideResponseAsync(request1);
+
+            Check.That(provideResponseAsync.StatusCode).IsEqualTo(200);
+            Check.That(provideResponseAsync.BodyData.BodyAsString).Contains(fileContents);
+        }
+
+        [Fact]
+        public async Task Response_ProvideResponse_WithResponseAsFile()
+        {
+            var fileContents = "testFileContents" + Guid.NewGuid();
+            var bodyDataAsFile = new BodyData { BodyAsFile = fileContents };
+
+            var request1 = new RequestMessage(new UrlDetails("http://localhost/__admin/files/filename.txt"), "GET", ClientIp, bodyDataAsFile);
+
+            var response = Response.Create().WithStatusCode(200).WithBody(fileContents);
+
+            var provideResponseAsync = await response.ProvideResponseAsync(request1);
+
+            Check.That(provideResponseAsync.StatusCode).IsEqualTo(200);
+            Check.That(provideResponseAsync.BodyData.BodyAsString).Contains(fileContents);
+        }
+
+        [Fact]
+        public async Task Response_ProvideResponse_WithResponseDeleted()
+        {
+            var fileContents = "testFileContents" + Guid.NewGuid();
+            var bodyDataAsFile = new BodyData { BodyAsFile = fileContents };
+
+            var request1 = new RequestMessage(new UrlDetails("http://localhost/__admin/files/filename.txt"), "DELETE", ClientIp, bodyDataAsFile);
+
+            var response = Response.Create().WithStatusCode(200).WithBody("File deleted.");
+
+            var provideResponseAsync = await response.ProvideResponseAsync(request1);
+
+            Check.That(provideResponseAsync.StatusCode).IsEqualTo(200);
+            Check.That(provideResponseAsync.BodyData.BodyAsString).Contains("File deleted.");
+        }
     }
 }