您需要一个 Main 模块（和一个 main 操作）来生成可执行文件。您可以将模块重命名为 Main ，也可以在命令行上将模块指定为 Main ，

You need a Main module (and a main action) to produce an executable. You can rename your module to Main, or you can specify the module to be considered Main on the command line,

ghc --make -main-is AddAllTests AddAllTests.hs -o testResults.exe

生成没有名为 Main 的模块的可执行文件。

to produce an executable without a module named Main.

没有编译的方法将是

ghc AddAllTests.hs -e "main" > testResults.txt

另一种方法是拥有一个只列出所有测试用例的文件，

Another method would be to have a file in which you just list all test cases,

3 + 2 :: Rational
reverse "foobar"
:q

并运行 ghci 并重定向输入和输出

and run ghci with redirected in- and output

ghci < testCases > testResults.txt