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2024-06-23 15:26:35 +01:00

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namespace WoofWare.NUnitTestRunner
open System
open System.IO
[<AutoOpen>]
module internal Patterns =
let (|Key|_|) (start : string) (s : string) : string option =
if s.StartsWith (start + "=", StringComparison.Ordinal) then
s.Substring (start.Length + 1) |> Some
else
None
/// Represents how verbose the test runner's logging should be.
[<RequireQualifiedAccess>]
type LogLevel =
/// Don't log any information about the test run.
| Nothing
/// Log as much information as is available about the test run.
| Verbose
/// Arguments controlling the test runner itself (not the tests therein).
type Args =
{
/// The DLL containing the tests we'll reflectively discover and invoke.
Dll : FileInfo
/// If set, the output file into which we will write a TRX report. (We'll create parent directories as necessary.)
Trx : FileInfo option
/// Also contains the original string which specified the filter.
Filter : (string * Filter) option
/// How verbose to be with the test runner's own logging.
Logging : LogLevel
/// Maximum number of tests which can run concurrently. This setting overrides any LevelOfParallelism reflectively
/// extracted from the assembly under test.
LevelOfParallelism : int option
/// Abort if the test runner is running for longer than this timeout.
Timeout : TimeSpan option
}
/// Parse `argv` into a structured Args.
static member Parse (args : string list) : Args =
match args with
| [] -> failwith "The first arg must be a positional arg, the DLL to test."
| dll :: args ->
let rec go
(trx : FileInfo option)
(filter : (string * Filter) option)
(logging : LogLevel option)
(par : int option)
(timeout : TimeSpan option)
(args : string list)
=
match args with
| [] ->
{
Dll = FileInfo dll
Trx = trx
Filter = filter
Logging = logging |> Option.defaultValue LogLevel.Nothing
LevelOfParallelism = par
Timeout = timeout
}
| Key "--filter" filterStr :: rest
| "--filter" :: filterStr :: rest ->
match filter with
| Some _ -> failwith "Two conflicting filters; you can only specify --filter once"
| None -> go trx (Some (filterStr, Filter.parse filterStr)) logging par timeout rest
| Key "--trx" trxStr :: rest
| "--trx" :: trxStr :: rest ->
match trx with
| Some _ -> failwith "Two conflicting TRX outputs; you can only specify --trx once"
| None -> go (Some (FileInfo trxStr)) filter logging par timeout rest
| Key "--verbose" verboseStr :: rest
| "--verbose" :: verboseStr :: rest ->
match logging with
| Some _ -> failwith "Two conflicting --verbose outputs; you can only specify --verbose once"
| None ->
let verbose =
if Boolean.Parse verboseStr then
LogLevel.Verbose
else
LogLevel.Nothing
go trx filter (Some verbose) par timeout rest
| Key "--parallelism" parStr :: rest
| "--parallelism" :: parStr :: rest ->
match par with
| Some _ -> failwith "Two conflicting --parallelism outputs; you can only specify --parallelism once"
| None -> go trx filter logging (Some (Int32.Parse parStr)) timeout rest
| Key "--timeout-seconds" timeoutStr :: rest
| "--timeout-seconds" :: timeoutStr :: rest ->
match timeout with
| Some _ ->
failwith "Two conflicting --timeout-seconds outputs; you can only specify --timeout-seconds once"
| None -> go trx filter logging par (Some (TimeSpan.FromSeconds (Int32.Parse timeoutStr |> float))) rest
| k :: _rest -> failwith $"Unrecognised arg %s{k}"
go None None None None None args