Question

   public void Test_Performance_WithFilledExcelFile()
    {
        // given
        var lorenzBahlsenCicToExcelJobWorker = new LorenzBahlsenCicToExcelJobWorker();
        var environment = new TestEnvironment(lorenzBahlsenCicToExcelJobWorker, nameof(Test_Performance_WithFilledExcelFile));

        string binDirectory = Path.GetDirectoryName(GetType().GetTypeInfo().Assembly.Location);
        var testFile = Path.Combine(binDirectory, "TestFiles", CICSynchronisedTestFile);

        var excelFileCurrent = Path.Combine(binDirectory, "TestFiles", "next_delivery.xlsx");
        var excelFolderTarget = environment.EnvironmentDataStoragePath;


        File.Copy(excelFileCurrent, excelFolderTarget);
     }

我对复制文件有疑问，为什么要在将文件复制到目标位置时出现异常：

“无法加载指定的文件”

但是，当我调试代码时，我有一个异常：

目标文件 'C：\ Project \ lorenz-bahlsen \ LorenzBahlsen.CICtoExcel.Test \ bin \ Debug \ netcoreapp1.1 \ Environments \ Test_Performance_WithFilledExcelFile \ data-storage' 是目录，而不是文件。'

您能帮我找到解决方法吗？

Answer 1

根据documentation，File.Copy期望您将提供目标文件名，而不是文件夹名。因此，在您的示例中为：

 public void Test_Performance_WithFilledExcelFile()
    {
        // given
        var lorenzBahlsenCicToExcelJobWorker = new LorenzBahlsenCicToExcelJobWorker();
        var environment = new TestEnvironment(lorenzBahlsenCicToExcelJobWorker, nameof(Test_Performance_WithFilledExcelFile));

        string binDirectory = Path.GetDirectoryName(GetType().GetTypeInfo().Assembly.Location);
        var testFile = Path.Combine(binDirectory, "TestFiles", CICSynchronisedTestFile);

        var excelFileCurrent = Path.Combine(binDirectory, "TestFiles", "next_delivery.xlsx");
        var excelFolderTarget = environment.EnvironmentDataStoragePath;
        var destinationFile = Path.Combine(excelFolderTarget, "next_delivery.xlsx");

        File.Copy(excelFileCurrent, destinationFile);
     }

将映射的文件复制到名为Test_Performance_WithFilledExcelFile C＃的其他文件夹中

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