如何在 f# 中为模式匹配创建 fsunit 测试?
How to create a fsunit test for pattern matching in f#?
我是 f# 和 fsUnit 的新手,我想知道如何使用 fsUnit 测试模式匹配语句。例如,如果我有以下代码,您将如何为其编写 fsunit 测试?
let Menu () =
let Choice = Console.ReadLine()
match Choice with
| "A" | "a" -> Function1()
| "B" | "b" -> Function2()
| "C" | "c" -> Function3()
| _ -> Printfn"Error"
首先,你要把实现匹配逻辑的代码和读取输入的代码分开,因为你只能测试某个调用的结果是否正确:
let handleInput choice =
match choice with
| "A" | "a" -> Function1()
| "B" | "b" -> Function2()
| "C" | "c" -> Function3()
| _ -> "Error"
let menu () =
let choice = Console.ReadLine()
let output = handleInput choice
printfn "%s" output
现在您可以编写一系列测试来检查 handleInput
返回的字符串是否是您期望的每个输入的字符串:
handleInput "A" |> should equal "whatever Function 1 returns"
handleInput "b" |> should equal "whatever Function 2 returns"
handleInput "D" |> should equal "Error"
我是 f# 和 fsUnit 的新手,我想知道如何使用 fsUnit 测试模式匹配语句。例如,如果我有以下代码,您将如何为其编写 fsunit 测试?
let Menu () =
let Choice = Console.ReadLine()
match Choice with
| "A" | "a" -> Function1()
| "B" | "b" -> Function2()
| "C" | "c" -> Function3()
| _ -> Printfn"Error"
首先,你要把实现匹配逻辑的代码和读取输入的代码分开,因为你只能测试某个调用的结果是否正确:
let handleInput choice =
match choice with
| "A" | "a" -> Function1()
| "B" | "b" -> Function2()
| "C" | "c" -> Function3()
| _ -> "Error"
let menu () =
let choice = Console.ReadLine()
let output = handleInput choice
printfn "%s" output
现在您可以编写一系列测试来检查 handleInput
返回的字符串是否是您期望的每个输入的字符串:
handleInput "A" |> should equal "whatever Function 1 returns"
handleInput "b" |> should equal "whatever Function 2 returns"
handleInput "D" |> should equal "Error"