public async Task FileDataProvider_WriteFileContentModel() { //Arrange Mock <ILogger <FileDataProvider> > moq = new Mock <ILogger <FileDataProvider> >(MockBehavior.Loose); FileDataProvider fileDataProvider = new FileDataProvider(moq.Object); string path = Path.GetTempPath(); string tempDirectory = Path.Combine(path, "testfiledataprovidertest3"); string tempFileName = Path.Combine(tempDirectory, "file1.txt_result.txt"); DataContentModel fileContentModel = new DataContentModel() { FilePath = tempFileName, ContentStrings = new string[] { "Line1", "Line2", "Line3" } }; if (Directory.Exists(tempDirectory)) { Directory.Delete(tempDirectory, true); } Directory.CreateDirectory(tempDirectory); //Act await fileDataProvider.WriteFileAsync(fileContentModel); string[] result = await File.ReadAllLinesAsync(tempFileName); Directory.Delete(tempDirectory, true); //Assert Assert.Equal(fileContentModel.ContentStrings, result); }