Template support for input parameters #4
@ -1,75 +0,0 @@
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import Foundation
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struct RunProcessTask {
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// MARK: Type aliases
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typealias Output = String
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// MARK: Properties
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private var process: Processable
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// MARK: Initialisers
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init(process: Processable) {
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self.process = process
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}
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// MARK: Functions
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@discardableResult
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mutating func callAsFunction(
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path: String, arguments: [String] = []
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) async throws (RunProcessError) -> Output {
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process.executableURL = URL(at: path)
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process.arguments = arguments
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let pipeError = Pipe()
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let pipeOutput = Pipe()
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process.standardError = pipeError
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process.standardOutput = pipeOutput
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async let streamOutput = pipeOutput.availableData.append()
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async let streamError = pipeError.availableData.append()
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do {
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try process.run()
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let dataOutput = await streamOutput
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let dataError = await streamError
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guard dataError.isEmpty else {
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guard let errorOutput = String(data: dataError, encoding: .utf8) else {
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throw RunProcessError.unexpected
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}
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throw RunProcessError.output(errorOutput)
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}
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guard let output = String(data: dataOutput, encoding: .utf8) else {
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throw RunProcessError.unexpected
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}
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return await withCheckedContinuation { continuation in
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process.terminationHandler = { _ in
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continuation.resume(returning: output)
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}
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}
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} catch let error as RunProcessError {
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throw error
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} catch {
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throw RunProcessError.captured(error.localizedDescription)
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}
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}
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}
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// MARK: - Errors
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public enum RunProcessError: Error, Equatable {
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case captured(_ output: String)
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case output(_ output: String)
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case unexpected
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}
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@ -1,68 +0,0 @@
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import Foundation
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import Testing
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@testable import ColibriLibrary
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struct RunProcessTaskTests {
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// MARK: Properties
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private var process: Process
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// MARK: Initialisers
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init() {
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self.process = Process()
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}
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// MARK: Functions tests
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@Test(arguments: [Argument.empty, Argument.listAllInFolder])
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func run(with arguments: [String]) async throws {
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// GIVEN
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var task = RunProcessTask(process: process)
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// WHEN
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let output = try await task(path: .ls, arguments: arguments)
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// THEN
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#expect(output.isEmpty == false)
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}
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@Test(arguments: zip([Argument.help, Argument.listAllInPWD], Throw.outputs))
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func runThrows(with arguments: [String], throws error: RunProcessError) async throws {
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// GIVEN
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var task = RunProcessTask(process: process)
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// WHEN
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// THEN
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await #expect(throws: error) {
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try await task(path: .ls, arguments: arguments)
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}
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}
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}
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// MARK: - String+Constants
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private extension String {
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static let ls = "/bin/ls"
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}
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// MARK: - Parameters
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private extension RunProcessTaskTests {
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enum Argument {
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static let empty: [String] = []
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static let help: [String] = ["--help"]
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static let listAllInFolder: [String] = ["-la", "."]
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static let listAllInPWD: [String] = ["-la", "~"]
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}
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enum Throw {
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static let outputs: [RunProcessError] = [
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.output("ls: unrecognized option `--help\'\nusage: ls [-@ABCFGHILOPRSTUWXabcdefghiklmnopqrstuvwxy1%,] [--color=when] [-D format] [file ...]\n"),
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.output("ls: ~: No such file or directory\n")
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]
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}
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}
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Block a user