Question

嘿，我正在以扫雷游戏作为我的项目，但在通过此测试时遇到了问题。

public static class LibraryConstants
{
    public const string DllName = "MyFile.dll";
}

public class OtherClass
{
    [DllImport(LibraryConstants.DllName, CharSet = CharSet.Unicode)]
    public static extern string someFunction(string directory);
}

这是我的简单方法：

  it "should initialise each position in each column in matrix as _" do
            matrix = []
            matrix[0] = ["_", "_", "_", "_", "_", "_","_"]
            matrix[1] = ["_", "_", "_", "_", "_", "_","_"]
            matrix[2] = ["_", "_", "_", "_", "_", "_","_"]
            matrix[3] = ["_", "_", "_", "_", "_", "_","_"]
            matrix[4] = ["_", "_", "_", "_", "_", "_","_"]
            matrix[5] = ["_", "_", "_", "_", "_", "_","_"]
            matrix[6] = ["_", "_", "_", "_", "_", "_","_"]
            @game.clearcolumns
            @game.matrix.should eql matrix
        end

由于某种原因，我失败了：

def clearcolumns
        def matrix
            matrix = []
            matrix[0] = ["_", "_", "_", "_", "_", "_","_"]
            matrix[1] = ["_", "_", "_", "_", "_", "_","_"]
            matrix[2] = ["_", "_", "_", "_", "_", "_","_"]
            matrix[3] = ["_", "_", "_", "_", "_", "_","_"]
            matrix[4] = ["_", "_", "_", "_", "_", "_","_"]
            matrix[5] = ["_", "_", "_", "_", "_", "_","_"]
            matrix[6] = ["_", "_", "_", "_", "_", "_","_"]
        end
    end

Answer 1

ruby中的方法（没有显式的return语句）将返回已执行的最后一行代码的结果。在您的情况下，matrix的最后一行是matrix[6] = ["_", "_", "_", "_", "_", "_","_"]，因此该方法将始终返回["_", "_", "_", "_", "_", "_","_"]。如果要返回完整矩阵，则可以改为：

def matrix
  # Initialize the matrix variable
  matrix = []

  # Explicitly set each row of the matrix
  matrix[0] = ["_", "_", "_", "_", "_", "_","_"]
  matrix[1] = ["_", "_", "_", "_", "_", "_","_"]
  matrix[2] = ["_", "_", "_", "_", "_", "_","_"]
  matrix[3] = ["_", "_", "_", "_", "_", "_","_"]
  matrix[4] = ["_", "_", "_", "_", "_", "_","_"]
  matrix[5] = ["_", "_", "_", "_", "_", "_","_"]
  matrix[6] = ["_", "_", "_", "_", "_", "_","_"]

  # Return the matrix
  matrix
end

通过rspec测试

1 个答案: